dcs-switching lab guide v1.8

8/16/2019 DCS-Switching Lab Guide v1.8

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ALL OF THE INFORMATION, INSTRUCTIONS, AND RECOMMENDATIONS IN THIS DOCUMENTARE OFFERED ON A STRICTLY "AS IS" BASIS. THIS MATERIAL IS OFFERED WITHOUT ANYWARRANTY, EXPRESSED OR IMPLIED. NEITHER D-LINK NOR D-LINK ACADEMY SHALL BEHELD RESPONSIBLE FOR ANY DIRECT, INDIRECT, INCIDENTAL OR CONSEQUENTIALDAMAGES, THAT MAY RESULT FROM ANYTHING THAT IS VIEWED IN THIS DOCUMENT, ORANYTHING YOU DO AS A RESULT THEREOF. IT IS UP TO THE READER TO DETERMINE THESUITABILITY OF ANY DIRECTIONS OR INFORMATION VIEWED HERE. THIS LEARNINGPRODUCT MAY CONTAIN EARLY RELEASE CONTENT, AND WHILE D-LINK BELIEVES IT TO BECORRECT, IT FALLS SUBJECT TO THE DISCLAIMER ABOVE.


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D-Link Academy Table of Contents

Copyright ©2012-2013 D-Link Corporation DCS-Switching 3

Table of Contents

Lab 1: Network Essentials ............................................................................................7

Lab Objective ............................................................................................................ 7

Task 1: Understanding the OSI model ........................................................................ 8

Task 2: Understanding the TCP/IP protocol suite ...................................................... 8

Task 3: Understanding IP addresses and subnets ........................................................ 9

Answers for Lab 1: .................................................................................................. 11

Task 1: Understanding the OSI model .................................................................. 11

Task 2: Understanding the TCP/IP protocol suite ................................................. 11

Task 3: Understanding IP addresses and subnets ................................................... 11

Lab 2: D-Link Switch Operation ................................................................................13

Lab Objective .......................................................................................................... 13

Lab Topology .......................................................................................................... 14

Command List ........................................................................................................ 14

Lab Details ............................................................................................................. 16

Task 1: Connecting to the Switch using CLI ............................................................. 16

Task 2: To enable/disable ports (to prevent looping) ................................................. 18

Task 3: Configuring the Switch ................................................................................ 18

Task 4: Password Recovery Procedure ..................................................................... 20

Task 5: Connecting to the Switch using the Web Manager ........................................ 20

Lab Verification ....................................................................................................... 20


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Table of Contents D-Link Academy

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Copyright ©2012-2013 D-Link Corporation

Lab 3: VLAN ..............................................................................................................21

Lab Objective .......................................................................................................... 21

Lab Topology .......................................................................................................... 22

Command List ........................................................................................................ 22

Lab Details .............................................................................................................. 23

Task 1: Creating static VLANs ................................................................................. 24

Task 2: Configuring tagged and untagged ports ......................................................... 24

Task 3: Configuring GVRP ...................................................................................... 25


Lab 4: Spanning Tree Protocol ....................................................................................27

Lab Objective .......................................................................................................... 27

Lab Topology .......................................................................................................... 28

Command List ........................................................................................................ 28

Lab Details .............................................................................................................. 29

Task 1: To enable/disable ports ................................................................................ 29

Task 2: Configuring STP .......................................................................................... 30

Task 3: Configuring the Primary Root Bridge and Secondary Root Bridge ................. 32

Task 4: Monitoring STP convergence ....................................................................... 32


Lab 5: Stacking ...........................................................................................................35

Lab Objective .......................................................................................................... 35

Lab Topology .......................................................................................................... 36

Command List ........................................................................................................ 36


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D-Link Academy Table of Contents


Lab Details ............................................................................................................. 37

Task 1: To enable/disable ports (to prevent looping in case STP is not enabled) ......... 38

Task 2: Configuring physical stacking ...................................................................... 38

Task 3: Configuring logical stacking (SIM) ............................................................... 41


Lab 6: Routing Basics .................................................................................................45

Lab Objective .......................................................................................................... 45

Lab Topology .......................................................................................................... 46

Command List ........................................................................................................ 46

Lab Details ............................................................................................................. 47

Task 1: To enable/disable ports (to prevent looping in case STP is not enabled) ......... 48

Task 2: Configuring VLANs .................................................................................... 48

Task 3: Configuring Static Route .............................................................................. 49

Task 4: Configuring RIP .......................................................................................... 50

Task 5: Configuring Route Preference ...................................................................... 51


Lab 7: D-Link Switching Features ..............................................................................53

Lab Objective .......................................................................................................... 53

Lab Topology .......................................................................................................... 54

Command List ........................................................................................................ 54

Lab Details ............................................................................................................. 57

Task 1: To enable/disable ports (To prevent looping in case STP is not enabled) ........ 57

Task 2: Configuring DHCP Server on SWRx1 and SWRx2 ...................................... 57


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Table of Contents D-Link Academy

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Task 3: Configuring ACL ......................................................................................... 60

Task 4: Configuring LLDP ...................................................................................... 61

Task 5: System Maintenance .................................................................................... 62



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D-Link Academy Lab 1


Lab 1: Network Essentials

Network Essentials

Chapter 1

[Chapter 1: Network Essentials]Version 1.0

Lab Objective

In this lab, you will apply/test your understanding of the fundamentals of networking and

the TCP/IP protocol suite learnt. After completing this lab, you should have a better

understanding of networking and the use of IP addressing and subnetting.


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Lab 1 D-Link Academy

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Task 1: Understanding the OSI model

Please fill in the blanks.

1. The provides end-to-end data transfer by delivering data from an

application to its remote peer.

2. The is the interface to the actual network hardware.

3. The provides addressing and routing functions.

4. The is provided by the program that uses TCP/IP for

communication. An application is a user process cooperating with another process,

usually on a different host.

Task 2: Understanding the TCP/IP protocol suite

1. Which port number indicates a WWW service recognized worldwide?

a. 80

b. 21

c. 25

d. 53

2. Of the following Layer 4 protocols, which one is used for a Telnet connection?

a. UDP

b. TCP

c. ICMP

d. DNS


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3. What is the purpose of assigning an IP address to a switch?

a. Providing local hosts with a default gateway address

b. Allowing remote management of the switch

c. Allowing the switch to respond to ARP requests between two hosts

d. Ensuring that hosts on the same LAN can communicate with each other

4. For the following transport layer protocols, which one is most suitable for the transport

of VoIP data?

a. HTTP

b. UDP

c. RIP

d. OSPF

5. Which of the following are found in a TCP header, but not in a UDP header? (Choose

three.)

a. Sequence number

b. Acknowledgment number

c. Source port

d. Destination port

e. Window size

f. Checksum

Task 3: Understanding IP addresses and subnets

1. What is the subnet address for the IP address 172.19.20.23/28?

a. 172.19.20.0

b. 172.19.20.15

c. 172.19.20.16

d. 172.19.20.20

e. 172.19.20.32


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2. Of the following IP addresses, which one is a private address?

a. 12.0.0.1

b. 168.172.19.39

c. 172.20.14.36

d. 172.33.194.30

3. Which of the following two statements describe the IP address 10.16.3.65/23? (Choose

two.)

a. The subnet address is 10.16.3.0 255.255.254.0.

b. The broadcast address of the subnet is 10.16.3.255 255.255.254.0.

c. The lowest host address in the subnet is 10.16.2.1 255.255.254.0.

d. The last valid host address in the subnet is 10.16.2.254 255.255.254.0.

4. A small company has a Class C network address and needs to create five subnets, each

accommodating 25 hosts. Which subnet mask needs to be configured?

a. 255.255.240.0

b. 255.255.255.128

c. 255.255.255.192

d. 255.255.255.224

e. 255.255.255.240

f. 255.255.255.248

5. From which IP address class can 15 bits be borrowed to create subnets?

a. Class A

b. Class B

c. Class C

d. Class D

e. Class E


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Answers for Lab 1:

Task 1: Understanding the OSI model

1. transport layer

2. physical layer

3. network layer

4. application layer

Task 2: Understanding the TCP/IP protocol suite

1. Answer: a

Explanation:

Port 1 to 1023 are well-known ports, where port 80 is for WWW, port 21 is for FTP, port

25 is for SMTP, and port 53 is for DNS.

2. Answer: b

Explanation:

Telnet requires a reliable connection, so TCP is used as the Transport layer protocol.

3. Answer: b

Explanation:

A switch does not require an IP address for it to be functional, however, the IP address

is needed for managing the switch.

4. Answer: b

Explanation:

VoIP traffic does not tolerate latency, and UDP is most suitable for such transmission.

5. Answer: a, b, e

Explanation:TCP needs to provide a reliable transmission, thus its header includes Sequence number,

Acknowledgement number, and Window Size.

Task 3: Understanding IP addresses and subnets

1. Answer: c

Explanation:

172.19.20.23/28 means 4 bits are borrowed for this Class B IP address. Thus,

172.19.20.16 is the subnet address.


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2. Answer: c

Explanation:

Private address for Class A: 10.0.0.0 – 10.255.255.255, Class B: 172.16.0.0 –

172.31.255.255, and Class C: 192.168.0.0 – 192.168.255.255.

3. Answer: b, cExplanation:

10.16.3.65/23 means 15 bits are borrowed for this Class A IP address. The subnet

address is 10.16.2.0, hosts are from 10.16.2.1 to 10.16.3.254, and the broadcast

address is 10.16.3.255.

4. Answer: d

Explanation:

To have 5 subnets, it means 3 bits need to be borrowed from the host bits. The default

subnet mask for Class C is 255.255.255.0, thus after borrowing 3 bits, the new subnet

mask will be 255.255.255.224.

5. Answer: a

Explanation:

Only Class A can be borrowed with 15 bits as it has 24 host bits. Class B has 16 host bits,

so if borrowed 15 bits, there will be no host left after subtracting the 2 reserved ip

addresses (network and broadcast). Class C only has 8 host bits, so it is not possible to

borrow 15 bits. Class D and E are reserved addresses.


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Lab 2: D-Link Switch Operation

Chapter 2

D-Link Switch Operation

[Chapter 2: D-Link Switch Operation]Version 1.0

Lab Objective

In this lab, you will learn to access and configure the Switch for basic Switch operations.

After completing this lab, you will be able to connect to the Switch using a serial cable

through a terminal emulation program, and learn the basic maintenance commands for the

Switch.


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Lab Topology

Note:

SWRx1 and SWRx2 are DGS-3627 or DGS-3620-28TC.

SWx3, SWx4, SWx5, and SWx6 are DES-3528 or DGS-3120-24TC.

Command List

Command Description

? To open Help.

clear To clear the screen.


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Command Description

config command_prompt

[|username|default] To change the command prompt.

config ipif System ipaddress

To change the System IP address of the Switch.

config ports state disable To disable a particular port on the Switch.

config ports state enable To enable a particular port on the Switch.

create account admin To create an administrator-level account for the

Switch.

delete account To delete a user account.

disable password encryption To disable password encryption.

disable sshTo disable secure login to remote devices through the

network.

enable password encryption To enable password encryption.

enable ssh To log in securely to remote devices through thenetwork.

enable telnet


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Command Description

show utilization flash To show flash memory utilization.

telnet {tcp_port


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1 stop bit

4. If the serial port is properly connected to a computer, the Switch’s banner will be visible.

Upon seeing the banner, press ENTER for the UserName and Password prompts. There

is no initial username or password.

5. Type ? and press ENTER to display the list of available commands.

6. Press ESC to quit from the command lists, press n for the next page or press ENTER for

the next command.

7. To display the switch information, type show switch, and fill in the following details:

What is the Device Type?

________________________________________________

What is the MAC address?

________________________________________________

What is the IP Address?

________________________________________________

What is the Firmware Version?

________________________________________________

What is the Serial Number?

________________________________________________

8. Type show greeting_message to view the currently configured greeting message on

the Switch.

9. Type show serial_port to display the serial port settings on the Switch.

10. Type show ports to display the current configuration of a range of ports.

11. Type show utilization flash to display the total and used FLASH memory.

12. Type show command_history to display the command history.

13. Press the UP arrow key and DOWN arrow key to display the previously typed

commands.

14. Type clear to clear the screen.

15. Type save to save changes in the Switch’s configuration to non-volatile RAM.


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Task 2: To enable/disable ports (to prevent looping)

1. All ports will be enabled by default. To disable all the ports on the switch, type config

ports all state disable.

2. Type show ports to verify that all the ports are disabled under the column Port State or

State/MDIX.

3. To enable the ports of the Switch, type config ports state enable, where

represents the port number. Your switch’s enabled ports can be obtained from

the Lab Details section. For example, if you belong to SWRx1, your enabled ports are

port 1 and 24. The command is config ports 1,24 state enable.

Task 3: Configuring the Switch

1. To change the name of the Switch, type config command_prompt ,

where represents the device’s name. Your Switch Name can be obtained

from the Lab Details section. For example, if you belong to Pod1, your Switch Name will

be SWR11, SWR12, SW13, SW14, SW15, and SW16.

2. To change the IP address of the Switch, type config ipif System ipaddress

. For example, if you belong to Pod1, SWRx1 in Pod 1 = SWR11,

and the IP Address is 10.90.90.11/24. Your Switch IP address can be obtained from the

Lab Details section.

3. Type show switch to verify that the Switch’s IP address has been updated.

4. To increase the security of your Switch, it is better to create an account with a password

for logging in.

Type create account admin admin1. When prompted for a password, type admin1.

5. Create a second account by typing create account user user1. When prompted for a

password, type user1.

6. Type show account to display the accounts that have been created.

7. Type delete account user1 to delete a previously created account.

8. Type show account and you will see that user1 does not exist anymore.

9. Using the ping command to test the availability of your neighbors. Example: To reach

SW12, type ping 10.90.90.12 times 5. (All switches in the same pod should be

reachable because they are all in the same subnet of 10.90.90.0/24.)


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10. Type show switch and press the Enter to verify that Telnet is enabled. Default for

Telnet is enabled with TCP Port 23. If Telnet is not enabled, type the command enable

telnet 23.

11. Using the telnet command, try to access to your neighbor’s Switch. For example, to

access SW12, type telnet 10.90.90.12. When prompted for UserName and Password,use admin1 for both entries.

You are now remotely connecting to a different switch. Notice the change in the

command_prompt.

12. Type show session to display a list of all the users that are logged in to the Switch.

13. Type logout to end the Telnet session.

14. SSH is a more secure way to connect to a remote device. To allow SSH on your own

switch, check that SSH is enabled by using the show switch command. By default, it is

disabled.

15. Type enable ssh to change it to secure mode. Type show switch to ensure that SSH

has been enabled. Note that for DGS-3627 and DES-3528 when SSH is enabled, Telnet

is disabled.

16. To demonstrate the use of SSH, ensure you PC’s IP address is in the same network as the

Switch. The PC’s IP address can be obtained from the Lab Details section.

17. Run Tera Term or other terminal emulation softwares from your PC, enter the IP address

of the Switch that you want to connect to, and choose SSH.

18. When prompted for Username and Password, use admin1 for both entries.

19. Type logout to end the session.

20. To revert back to allow Telnet access on your Switch, enter disable ssh, followed by

enable telnet. This step is required ONLY for DGS-3627 and DES-3528.


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21. Type show switch to verify that Telnet has been enabled.

22. Type save to save changes in the Switch’s configuration to non-volatile RAM.

Task 4: Password Recovery Procedure

1. To recover password, you have to reboot the Switch and press Shift+6 repeatedly to

enter the “Password Recovery Mode”.

2. At the “Password Recovery Mode”, type reset password admin1 to reset the password

for the account admin1.

3. Type reboot.

4. Type config account admin1 to configure a new password. (Note: Use admin1 as the

password.)

Task 5: Connecting to the Switch using the Web Manager

1. Type show switch to verify that the Web is enabled. By default, it is enabled. If it is not,

type enable web.

2. From your browser, type the IP address of your Switch.

3. Enter admin1 for both the Username and Password.

4. You are now successfully connected to the Switch using the Web Manager.

Lab Verification

At the end of this lab, you have learned:

• How to connect to the Switch using CLI and Web.

• How to change the Switch’s name and IP address.

• How to create accounts on the Switch.

• Various commands to verify the Switch’s configuration.


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Lab 3: VLAN

Chapter 3

VLAN

[Chapter 3: VLAN]Version 1.0

Lab Objective

In this lab, you will learn to create and configure VLANs on the switch. After completing this

lab, you will have acquired the skills to create both static and dynamic (GVRP) VLANs.


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Lab Topology

Note:



Command List

Command Description

config gvrp [ | all] {state

[enable | disable] | ingress_checking

[enable | disable] | acceptable_frame

[tagged_only | admit_all] | pvid

}

This command is used to configure GVRP on the

switch. (DGS-3627)


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Command Description

config port_vlan [ | all]

{ gvrp_state [enable | disable] |

ingress_checking [enable | disable]

| acceptable_frame[tagged_only |

admit_all]pvid}

This command is used to configure the Group VLAN

Registration Protocol on the Switch. Ingress checking,

the sending and receiving of GVRP information, and

the Port VLAN ID (PVID) can be configured.

(DGS-3620-28TC, DES-3528)

config vlan {[add

[ tagged | untagged | forbidden] |

delete] | advertisement

[enable | disable]}

This command is used to add additional ports to a

previously configured VLAN.

create vlan {tag

| type 1q_vlan |

advertisement}

This command is used to create a VLAN on the switch.

delete vlan This command is used to delete a previously

configured VLAN on the switch.disable gvrp This command is used to disable GVRP on the switch.

enable gvrp This command is used to enable GVRP on the switch.

show gvrp {}This command is used to display the GVRP status for a

port list on the switch. (DGS-3627)

show port_vlan {}This command displays the GVRP status for a port list

on the Switch (DGS-3620-28TC, DES-3528)

show vlan {[ |

vlanid ] | ports }

This command is used to display the current VLAN

configuration on the switch.

Lab Details

Switch NameSwitch’s IP

AddressEnabled Ports

Connected PC

(if any)PC’s IP Address

SWRx1 10.90.90.x1/24 1, 24 PCx1 10.90.90.x01/24

SWRx2 10.90.90.x2/24 1, 24 PCx2 10.90.90.x02/24

SWx3 10.90.90.x3/24 1, 3 PCx3 10.90.90.x03/24

SWx4 10.90.90.x4/24 1, 3 PCx4 10.90.90.x04/24

SWx5 10.90.90.x5/24 3 PCx5 10.90.90.x05/24

SWx6 10.90.90.x6/24 3 PCx6 10.90.90.x06/24

Note: x=POD number

Examples:

SWRx1 in Pod 1=SWR11; IP Address is 10.90.90.11/24

SWRX1 in Pod 2=SWR21; IP Address is 10.90.90.21/24


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Task 1: Creating static VLANs

In this task, only SWx3 will be configured with static VLANs. This is to illustrate the concept

of a static VLAN.

1. On SWx3, type the following commands:

create vlan v10 tag 10



2. On all the switches, type show vlan to verify that none of the above VLANs have been

created on the other switches except for SWx3.

3. On SWx3, type delete vlan v30 to remove the VLAN from its switch. Type show vlan

to verify that the VLAN has been removed successfully.

Task 2: Configuring tagged and untagged ports

Tagged ports are trunk links which allow multiple VLANs to cross one link. Untagged ports

are access links which connect to the edge devices or hosts.

1. Before proceeding to make any changes on the ports, try to ping your neighbors to verify

that all switches are still in the same VLAN. Example: On SWx5, type ping 10.90.90.x3

times 5 to verify that SWx3 is reachable. All switches in the same pod will be reachable

at this stage.

2. On all switches, type show vlan or show vlan ports to verify that all ports are assigned

to VLAN 1 and are untagged (by default).

3. To remove Port 10 from the default VLAN, type config vlan default delete 10. Type

show vlan to verify that Port 10 has been removed from the default VLAN.

4. To add the port back to the VLAN, type config vlan default add untagged 10. Type

show vlan to verify that Port 10 has been added to the default VLAN.

5. On SWx3, type the following commands:

config vlan default delete 3

config vlan v10 add untagged 3

config vlan v10 add tagged 1


(The first command will remove Port 3 from the default VLAN. The second command will

configure Port 3 to be untagged for VLAN v10. The third and fourth commands will

configure Port 1 to be tagged for VLAN v10 and v20.)


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Type show vlan and show vlan ports to verify that Port 3 is untagged and is assigned

to VLAN v10.

6. On SWx5, type ping 10.90.90.x3 times 5. The ping traffic fails because SWx3 and

SWx5 are not assigned to the same VLAN, and routing has not been enabled.

7. On all switches, type ping 10.90.90.x5 times 5. The ping traffic fails because SWx5 is

in a different VLAN.

Task 3: Configuring GVRP

VLANs can be created in a static or dynamic way. GVRP is the dynamic way to configure

VLANs. In this lab, SWx5 and SWx6 are regarded as hosts. Delete all the static VLANs before

proceeding with this Task.

1. On SWRx1, SWRx2, SWx3, and SWx4, type show gvrp to verify that GVRP is disabled

by default.

2. To verify GVRP settings on Ports 1 and 24:

On SWRx1 and SWRx2, type show gvrp 1,24(DGS-3627) or show port_vlan

1,24(DGS-3620-28TC).

On SWx3 and SWx4, type show port_vlan 1.

3. On SWRx1, SWRx2, SWx3, and SWx4, type enable gvrp to enable GVRP on the switch.

4. On SWRx1 and SWRx2, type config gvrp 1,24 state enable to enable GVRP on the

ports, then type show gvrp 1,24 to verify that GVRP has been enabled on the ports

successfully.

Note: For DGS-3620-28TC, use config port_vlan 1, 24 grvp_state enable and show

port_vlan 1, 24.

5. On SWx3 and SWx4, type config port_vlan 1 gvrp_state enable to enable GVRP on

the ports, then type show port_vlan 1 to verify that GVRP has been enabled on the

ports successfully.

6. On SWRx1, type the following commands:

create vlan v10 tag 10 advertisementcreate vlan v20 tag 20 advertisement

config vlan v10 add tagged 1,24

config vlan v20 add tagged 1,24

(The first and second commands will create a VLAN v10 and v20 and enable the VLAN

advertisement. The third and fourth commands will configure Ports 1 and 24 to be

tagged for VLAN v10 and v20.)


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Type show vlan and show vlan ports to verify that Ports 1 and 24 are tagged and

assigned to VLAN v10 and v20.

7. On SWRx1, SWRx2, SWx3, and SWx4, type show vlan. On SWRx1, the VLAN Type is

shown as “Static” and the Advertisement is shown as “Enabled”. On SWRx2, SWx3, and

SWx4, the VLAN Type is shown as “Dynamic” and the Advertisement is shown as “Enabled”. This shows that the VLAN has been successfully advertised from SWRx1 to

the other switches.

Lab Verification

At the end of this lab, you have now learned:

• How to create and delete VLANs.

• How to modify ports to be tagged and untagged.

• How to configure VLANs using static and dynamic ways.


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Lab 4: Spanning Tree Protocol

Spanning Tree Protocol

Chapter 4

[Chapter 4: Spanning Tree Protocol]Version 1.0

Lab Objective

In this lab, you will learn to create and configure the Spanning Tree Protocol (STP). After

completing this lab, you should be able to configure STP and RSTP as well as primary and

secondary root bridges.


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Lab Topology

Note:



Command List

Command Description

enable stp This command is used to enable STP globally.

disable stp This command is used to disable STP globally.


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Command Description

config stp version [mstp | rstp | stp]This command is used to enable the STP version

globally.

config stp priority

instance_id

This command is used to configure the instance

priority.

show stpThis command is used to show the global settings of

the bridge parameters.

show stp instance This command is used to show each instance of the

parameter settings.

show stp ports {}

This command is used to show the port information

including the parameter settings and operational

value.

config stp portsThis command is used to configure the ports

management parameters at the CIST level only.

config stp This command is used to configure the bridgemanagement parameters for CIST (instance_id=0).

Lab Details



Connected PC


SWRx1 10.90.90.x1/24 1, 24 PCx1 10.90.90.x01/24

SWRx2 10.90.90.x2/24 1, 24 PCx2 10.90.90.x02/24

SWx3 10.90.90.x3/24 1, 3, 24 PCx3 10.90.90.x03/24

SWx4 10.90.90.x4/24 1, 3, 24 PCx4 10.90.90.x04/24

SWx5 10.90.90.x5/24 3 PCx5 10.90.90.x05/24

SWx6 10.90.90.x6/24 3 PCx6 10.90.90.x06/24

Note: x=POD number

Examples:



Task 1: To enable/disable ports

1. All ports will be enabled by default. To disable all the ports on the switch, enter config

ports all state disable.


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2. Enter show ports to verify that all the ports are disabled under the column Port State or

State/MDIX.

3. To enable the ports of the Switch, enter config ports state enable, where


the Lab Details section. For example, if you belong to SWRx1, your enabled ports arePorts 1 and 24. The command is config ports 1,24 state enable.

Task 2: Configuring STP

In this task, STP will be enabled on all switches except SWx5 and SWx6 as they are regarded

as host devices in this lab.

1. Enter show stp to verify the STP’s settings on the switch. (The default setting for STP is

disabled.)

2. On SWRx1, SWRx2, SWx3, and SWx4, enter enable stp. Enter show stp on these four

switches to get the following STP status:

3. The default STP version is RSTP. To set it to STP, enter config stp version stp on

SWRx1, SWRx2, SWx3, and SWx4. You will obtain the following status:


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4. On SWRx1, SWRx2, SWx3, and SWx4, enter config stp version rstp to revert the STP

status back to RSTP.

5. On SWx3 and SWx4, enter config stp ports 3 edge true to configure Port 3 as the edge

device. This means that SWx5 and SWx6, which are connected to Port 3, will not

participate in STP.

6. On SWx3 and SWx4, enter show stp ports 3 to verify that the status of the Edge port

is set to True.

7. On SWRx1, SWRx2, SWx3, and SWx4, enter show stp instance 0. What is the MAC

address of the Designated Root Bridge?

_________________________________________________

8. On SWRx1, SWRx2, SWx3, and SWx4, enter show switch. What is the MAC address of

the switch?

_________________________________________________

9. Compare the MAC address of the switch and the MAC address of the Designated RootBridge. Are they the same? Yes/No

10. If yes, it means that the switch is the Designated Root Bridge. If no, it means that the

switch is not the Designated Root Bridge.


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DCS-Switching


Task 3: Configuring the Primary Root Bridge and Secondary

Root Bridge

In this task, SWRx1 will be configured as the primary root bridge, and SWRx2 will beconfigured as the secondary root bridge.

1. On SWRx1, SWRx2, SWx3, and SWx4, enter show stp instance 0. What is the Instance

Priority of the switch?

_________________________________________________

2. On SWRx1, enter config stp priority 0 instance_id 0 to configure the switch with

priority 0. The switch with the lowest priority will be selected as the primary root bridge.

3. On SWRx2, enter config stp priority 4096 instance_id 0 to configure the switch withpriority 4096. The switch with the second lowest priority will be selected as the

secondary root bridge.

Note: The priority value must be an incremental of 4096.

4. On SWRx1, SWRx2, SWx3, and SWx4, enter show stp instance 0. What is the Instance

Priority of the switch?

_________________________________________________

5. On SWRx1, SWRx2, SWx3, and SWx4, enter show stp instance 0. What is the MAC

address of the Designated Root Bridge?

_________________________________________________

6. Compare SWRx1’s MAC address with the MAC address of the Designated Root Bridge.

They should be the same, because SWRx1 has the lowest priority and thus will be

selected as the Designated Root Bridge.

7. On SWRx1 and SWRx2, enter show stp ports 1,24. On SWx3 and SWx4, enter show

stp ports 1,3,24. Using the Lab Topology, label the Designated ports, Root ports, and

Alternate ports (if any).

Task 4: Monitoring STP convergence

In this task, SWx4 will be used to demonstrate the convergence of STP by making use of the

redundant link.

1. On SWx4, enter show stp ports 1,3,24 to verify that Port 1 is the Root port.


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2. On SWx4, enter config ports 1 state disable to disable Port 1. (This is for testing STP

convergence.)

3. On SWx4, enter show stp ports 1,3,24 to verify that Port 1 is disabled and not the Root

port (Port 24 is now selected as the Root port).

4. On SWx4, enter config ports 1 state enable to enable Port 1, and enter show stp

ports 1,3,24 to verify that Port 1 is selected as the Root port and Port 24 as the

Alternate port.

Lab Verification


• How to enable STP and RSTP.

• How to configure the primary and secondary root bridges.


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Lab 5: Stacking

Switch Stacking

Chapter 5

[Chapter 5: Switch Stacking]Version 1.0

Lab Objective

In this lab, you will learn to configure stacking. After completing this lab, you should be able

to configure two types of stacks: physical and virtual.


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36

DCS-Switching


Lab Topology

Note:



Command List

Command Description

config box_id current_box_id new_box_id [auto | ]

This command is used to configure the Box ID. Users

can use this command to reassign Box IDs.

config box_priority current_box_id

priority

This command is used to configure the box priority of

the switch.

(DGS-3627)

Port 28 (DGS-3620-28TC)


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Command Description

config sim [[commander

{group_name } |

candidate] | dp_interval

| hold_time ]}

This command is used to configure parameters of

switches of the SIM.

config sim [add {} | delete

]

This command is used to add candidates and delete

members from the SIM group by ID number.

config stacking force_master_role

state [enable | disable]

This command is used to configure the stacking-force

master role.

config stacking_mode [disable |

enable] This command is used to configure the stacking mode.

disable sim This command disables SIM on the switch.

enable sim This command enables SIM on the switch.

show sim {[candidates {} | members {} | group {commander_mac

} | neighbor]}

This command is used to view the current information

regarding the SIM group on the switch.

show stack_device This command is used to display information about

the devices in the stack.

show stack_informationThis command is used to display the stack

information.

show stacking_modeThis command is used to display the current stacking

mode.

Lab Details



Connected PC


SWRx1 10.90.90.x1/24 1, 26/28 PCx1 10.90.90.x01/24

SWRx2 10.90.90.x2/24 1, 27 PCx2 10.90.90.x02/24

SWx3 10.90.90.x3/24 1, 3 PCx3 10.90.90.x03/24

SWx4 10.90.90.x4/24 1, 3 PCx4 10.90.90.x04/24

SWx5 10.90.90.x5/24 3 PCx5 10.90.90.x05/24

SWx6 10.90.90.x6/24 3 PCx6 10.90.90.x06/24

Note: x=POD number

Examples:

SWRx1 in POD 1=SWR11; IP Address is 10.90.90.11/24

SWRX1 in POD 2=SWR21; IP Address is 10.90.90.21/24


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DCS-Switching


Task 1: To enable/disable ports (to prevent looping in case

STP is not enabled)

1. All ports will be enabled by default. To disable all the ports on the switch, enter configports all state disable.


State/MDIX.

3. To enable the ports of the switch, enter config ports state enable, where



Ports 1 and 26 or 28. The command is config ports 1,26/28 state enable.

Task 2: Configuring physical stacking

In this task, only SWRx1 and SWRx2 will be used for stacking. The stacking cable is

connected to Port 26 of SWRx1 or Port 28 for DGS-3620-28TC and Port 27 of SWRx2.

1. To enable both ports for stacking, on SWRx1, enter config ports 26 or 28 state enable

and on SWRx2, enter config ports 27 state enable.

2. On SWRx1 and SWRx2, enter config stacking_mode enable. Please note that this

command can only be used on the same series of switches. After entering the command,

enter y when asked to reboot.


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3. When the switches have rebooted, on SWRx1, enter show stack _device and show

stack_information to verify the stacking settings.

Note: A maximum of 12 switches can be stacked.

4. When trying to access SWRx2, the message “Please login through Master Box…” will

appear.


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DCS-Switching


5. Based on the above scenario, SWRx1 is the Master Box. If a different switch should be

selected as the Master Box, use the command config box_priority current_box_id

priority .

Example: enter config box_priority current_box_id 2 priority 1 to change the

Master Box to SWRx2, then save the configuration and reboot the switch.

In the above figure, the Master Box is SWRx1 and has the serial number P1JH195000010.


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In the above figure, the new Master Box has the serial number P1JH95000008. The

switch’s command prompt remains the same because they are stacked.

Note: After completing this task, the stacking cable needs to be physically disabled to

terminate stacking and change the SWRx2 System IP address back to 10.90.90.x2 in

order to proceed with Task 3.

Task 3: Configuring logical stacking (SIM)

In this task, only SWRx1 and SWRx2 will be used for logical stacking, which is also known as

Single IP Management (SIM).

1. On SWRx1 and SWRx2, enter enable sim.

2. On SWRx1, enter config sim commander group_name podx to configure SWRx1 as

the SIM commander. Enter show sim candidates and a single candidate should be

displayed (i.e. SWRx2).


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DCS-Switching


3. On SWRx1, enter config sim_group add 1. SWRx1 will add SWRx2 to the SIM group.

Note: If you are asked for the password, input the password of SWRx2.

4. On SWRx1, enter show sim candidates. Zero candidates will be displayed as SWRx2

has already joined the SIM group. Enter show sim members and SWRx2 should be

displayed as one of the SIM members.

5. On SWrx1 and SWRx2, enter show sim.


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6. After completing logical stacking of the switches, use the Web browser to access SWRx1

(IP address 10.90.90.11). Through the Web browser, it is now possible to manage all the

switches that are logically stacked together.


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DCS-Switching


Lab Verification

At the end of this lab, you have now learned how to enable physical and virtual stacking.


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Lab 6: Routing Basics

Routing

Chapter 6

[Chapter 6: Routing Basics]Version 1.0

Lab Objective

In this lab, you will learn to configure routing using two different methods: static and

dynamic.


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46

DCS-Switching


Lab Topology

Note:


SWx3, SWx4, SWx5, and SWx6 are DES-3528.

Command List

Command Description

create iproute [default |

] [null0 |

{}

{[primary | backup | weight ]}]

This command is used to create an IP route entry to

the switch’s IP routing table.


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Command Description

delete iproute [default |

] [null0 |

]

This command is used to delete an IP route entry from

the switch’s IP routing table.

show iproute {[

| ]} {[static | rip | ospf |

bgp | hardware]}

This command is used to display the switch’s currentIP routing table.

enable rip This command is used to enable the RIP routing.

config rip [ipif |all]

{authentication [ enable | disable ] | tx_mode [disable |

v1_only | v1_compatible | v2_only]

| rx_mode [v1_only | v2_only |

v1_or_v2 | disable] | state [enable |

disable]}

This command is used to configure RIP on the switch.

show rip {ipif }This command is used to display the RIP configuration

and statistics for the switch.

config route preference [static |

default | rip | ospfIntra | ospfInter |

ospfExt1 | ospfExt2 | ebgp | ibgp]

This command is used to configure route type

preference.

show route preference {[ local |

static | default | rip | ospf | ospfIntra

| ospfInter | ospfExt1 | ospfExt2 |

ebgp | ibgp]

This command is used to display the route preference

of each route type.

Lab Details



Connected PC


SWRx1 10.90.90.x1/24 1, 24 PCx1 10.90.90.x01/24

SWRx2 10.90.90.x2/24 1, 24 PCx2 10.90.90.x02/24

SWx3 10.90.90.x3/24 1, 3 PCx3 10.90.90.x03/24

SWx4 10.90.90.x4/24 1, 3 PCx4 10.90.90.x04/24SWx5 10.90.90.x5/24 3 PCx5 10.90.90.x05/24

SWx6 10.90.90.x6/24 3 PCx6 10.90.90.x06/24

Note: x=POD number

Examples:




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DCS-Switching


Task 1: To enable/disable ports (to prevent looping in case

STP is not enabled)



State/MDIX.




Ports 1 and 24. The command is config ports 1,24 state enable.

Task 2: Configuring VLANs

In this task, different subnets must be configured on the switches to demonstrate routing.

1. On SWRx1, enter the following commands to create VLANs and assign an IP address to

each VLANs:

config ipif System ipaddress 10.90.90.x1/24



create ipif v10-if 10.90.x1.11/24 v10

2. On SWRx2, enter the following commands to create VLANs and assign an IP address to

each VLANs:

config ipif System ipaddress 10.90.90.x2/24




3. On SWRx1 and SWRx2, enter show ipif to verify the IP addresses are applied

successfully.

4. On SWRx1, enter ping 10.90.x2.11 times 5 and note that the ping fails. On SWRx2,

enter ping 10.90.x1.11 times 5 and note that this ping also fails. Both the pings fail

because there are no routes configured to reach a different VLAN.


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Task 3: Configuring Static Route

In this task, only SWRx1 and SWRx2 are configured for routing because they are both Layer

3 switches.

1. On SWRx1 and SWRx2, enter show iproute to view the existing routing table. Write

down the network addresses shown in the routing table:

________________________________________________

________________________________________________

2. On SWRx1, enter create iproute 10.90.x2.0/24 10.90.90.x2. On SWRx2, enter

create iproute 10.90.x1.0/24 10.90.90.x1. This is to create a static route to point to

a destination network through a next hop.

3. On SWRx1 and SWRx2, enter show iproute to view the updated routing table. Write

down the new network addresses (with the Protocol status as Static) shown in the

routing table:

________________________________________________

________________________________________________

4. On SWRx1, enter ping 10.90.x2.11 times 5 and on SWRx2, enter ping 10.90.x1.11

times 5. Both the pings will be successful because there is a route configured to reach

each VLAN.


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DCS-Switching


Task 4: Configuring RIP


3 switches.

1. On SWRx1 and SWRx2, enter show iproute to view the existing routing table. Write

down the network addresses shown in the routing table:

________________________________________________

________________________________________________

2. On SWRx1 and SWRx2, enter enable rip to enable RIP on both switches.

3. On SWRx1, enter the following commands:

config rip ipif System state enableconfig rip ipif System rx_mode v2_only tx_mode v2_only

config rip ipif v10-if state enable

config rip ipif v10-if rx_mode v2_only tx_mode v2_only

(The above commands enable RIP on the interfaces and specifies RIP Version 2 on both

receive and transmit modes.)


config rip ipif System state enable

config rip ipif System rx_mode v2_only tx_mode v2_only

config rip ipif v20-if state enable

config rip ipif v20-if rx_mode v2_only tx_mode v2_only

(The above commands enables RIP on the interfaces and specifies RIP Version 2 on both

receive and transmit modes.)

5. On SWRx1 and SWRx2, enter show iproute to view the updated routing table. Note that

there are no RIP entries because a static route has a route preference of 60 and RIP has

a route preference of 100. A lower route preference value is preferred. There are two

solutions: delete the static route or change the value of the route preference.

6. On SWRx1, enter delete iproute 10.90.x2.0/24 10.90.90.x2. On SWRx2, enter

delete iproute 10.90.x1.0/24 10.90.90.x1. This is to remove the static routes that

were previously configured in Task 3.

7. On SWRx1 and SWRx2, enter show iproute to view the updated routing table. Write down

the new network addresses (with the Protocol status as RIP) shown in the routing table:

________________________________________________

________________________________________________


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8. On SWRx1, enter ping 10.90.x2.11 times 5 and on SWRx2, enter ping 10.90.x1.11

times 5. Both the pings will be successful because there is a route configured to reach

each VLAN.

Task 5: Configuring Route Preference


3 switches.

1. On SWRx1, enter create iproute 10.90.x2.0/24 10.90.90.x2. On SWRx2, enter

create iproute 10.90.x1.0/24 10.90.90.x1. This is to insert the previous static route,

which by default has a lower route preference. After inserting the static route, the route

entries inserted by RIP will be replaced.

2. On SWRx1 and SWRx2, enter config route preference static 200, to change the route

preference of the static route to 200.

3. On SWRx1 and SWRx2, enter show iproute to view the updated routing table.

What type of routes do you see?

________________________________________________

4. Why is a static route not displayed in the routing table?

________________________________________________


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DCS-Switching


Lab Verification


• How to configure static route.

• How to configure dynamic routing through the use of the RIP protocol.

• How to change the value of the route preference.


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Lab 7: D-Link Switching Features

D-Link Switching Features

Chapter 7

[Chapter 7: D-Link Switching Features]Version 1.0

Lab Objective

In this lab, you will learn to configure DHCP, ACL, LLDP, and System Maintenance. After

completing this lab, you should be able to configure dynamic address allocation, permitting

or denying traffic, learning about your neighbors, and backing up your firmware and

configuration files.


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DCS-Switching


Lab Topology

Note:



Command List

DHCP Command Description

config dhcp pool default_router

{} {}

This command is used to configure the default router

for the DHCP client.


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DHCP Command Description

config dhcp pool dns_server_address

{} {}

This command is used to configure the IP addresses of

DNS servers for a specific DHCP pool.

config dhcp pool network_addr

This command is used to configure the network

address and corresponding subnet mask for the DHCP

pool.

create dhcp excluded_address

begin_address

end_address

This command is used to configure IP addresses that

will be excluded from the DHCP server’s pool of

addresses.

create dhcp pool This command is used to create a DHCP pool.

disable dhcp_serverThis command disables the DHCP function on the

switch.

enable dhcp_serverThis command enables the DHCP function on the

switch.show dhcp_binding {}

This command is used to show the DHCP binding

information.

show dhcp_serverThis command is used to display the DHCP server

settings.

ACL Command Description

config access_profile This command is used to configure access list entry.

create access_profile This command is used to create access list rules.

show access_profile This command is used to display the current access listtable.

LLDP Command Description

config lldp message_tx_interval

This command is used to change the packet

transmission interval.

config lldp ports [|all]

admin_status [tx_only | rx_only |

tx_and_rx | disable]

This command is used to configure per-port transmit

and receive modes.


basic_tlvs [all | {port_description |

system_name | system_description

| system_capabilities}] [enable |

disable]

This command is used to configure an individual port

or group of ports to exclude one or more optional TLV

data types from outbound LLDP advertisements.


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DCS-Switching


LLDP Command Description


dot3_tlvs [all |

{mac_phy_configuration_status |

link_aggregation |

maximum_frame_size}] [enable |

disable]

This command is used to configure an individual port

or group of ports to exclude one or more of IEEE 802.3

organization-specific TLV data types from outbound

LLDP advertisements.


mgt_addr [ipv4 | ipv6

] [enable | disable]

This command is used to enable or disable port(s)

specified for advertising the indicated management

address instances.


notification [enable | disable]

This command is used to configure each port for

sending notification to configured SNMP trap

receiver(s).

disable lldp This command disables LLDP on the switch.

enable lldp This command enables LLDP on the switch.

show lldpThis command is used to display the switch’s general

LLDP configuration status.

TFTP Command Description

download firmware_fromTFTP

{[ |

|] src_file

{dest_file

{{unit [ | all]}

}

{boot_up}}}

This command is used to download the firmware

image from TFTP server.

upload cfg_toTFTP {[ |

| ] dest_file {src_file {}

} {[include |

exclude | begin]

{ {}} {[include | exclude | begin ] { {}} {[include

| exclude | begin ]

{ {}}}}}}

This command is used to upload a configuration file

from a device to a TFTP server. This command is

required to be supported when the file system is not

supported on the device’s Flash EPROM.


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Lab Details



Connected PC


SWRx1 10.90.90.x1/24 1, 24 PCx1 10.90.90.x01/24SWRx2 10.90.90.x2/24 1, 24 PCx2 10.90.90.x02/24

SWx3 10.90.90.x3/24 1, 3 PCx3 10.90.90.x03/24

SWx4 10.90.90.x4/24 1, 3 PCx4 10.90.90.x04/24

SWx5 10.90.90.x5/24 3 PCx5 10.90.90.x05/24

SWx6 10.90.90.x6/24 3 PCx6 10.90.90.x06/24

Note: x=POD number

Examples:



Task 1: To enable/disable ports (To prevent looping in case

STP is not enabled)



State/MDIX.




Ports 1 and 24. The command is config ports 1,24 state enable.

Task 2: Configuring DHCP Server on SWRx1 and SWRx2

In this task, only SWRx1 and SWRx2 will be used as DHCP servers; SWx3, SWx4, SWx5, and

SWx6 will be used as DHCP clients. SWRx1, SWx3, and SWx5 will be in VLAN 10 and using

addresses from the network of 10.90.x1.0/24. SWRx2, SWx4, and SWx6 will be in VLAN 20

and using addresses from the network of 10.90.x2.0/24.


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DCS-Switching


VLAN v10 v20

DHCP Server SWRx1 SWRx2

DHCP Clients SWx3, SWx5 SWx4, SWx6

DHCP Pool v10-pool v20-pool

DHCP Network Address 10.90.x1.0/24 10.90.x2.0/24

DHCP Excluded Addresses10.90.x1.1/24 to

10.90.x1.20/24

10.90.x2.1/24 to

10.90.x2.20/24

Note: x=POD number

1. On SWRx1, enter the following commands to configure it as a DHCP server:


config vlan v10 add tag 1,24


create dhcp pool v10-pool

config dhcp pool default_router v10-pool 10.90.x1.11

config dhcp pool dns_server(_address) v10-pool 10.90.x1.11

config dhcp pool network_addr v10-pool 10.90.x1.0/24

create dhcp excluded_address begin_address 10.90.x1.1 end_address 10.90.x1.20

enable dhcp_server

2. On SWx3, enter the following commands to configure it as a DHCP client:


config vlan v10 add tag 1


config ipif System vlan v10config ipif System dhcp


config ipif System dhcp

4. On SWRx2, enter the following commands to configure it as a DHCP server:


config vlan v20 add tag 1,24


create dhcp pool v20-pool

config dhcp pool default_router v20-pool 10.90.x2.11

config dhcp pool dns_server(_address) v20-pool 10.90.x2.11

config dhcp pool network_addr v20-pool 10.90.x2.0/24

create dhcp excluded_address begin_address 10.90.x2.1 end_address 10.90.x2.20

enable dhcp_server


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config vlan v20 add tag 1


config ipif System vlan v20




7. To verify successful DHCP settings, use the commands show switch and show ipif on

SWx3, SWx4, SWx5, and SWx6.

Note: disable dhcp_server and enable dhcp_server on SWRx1 and SWRx2 if SWx3,

SWx4, SWx5, and SWx6 cannot obtain an IP address.

8. To reach the different subnets, ensure that the RIP configuration from Lab 6 is still

implemented by using the show iproute command.


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DCS-Switching


Task 3: Configuring ACL

In this task, the ACL will be applied on the middle switch to prevent the lower switch from

accessing the higher switch.

1. Before applying ACL, it is good practice to test availability first. On SWx5, enter ping

10.90.x1.11 times 5 to reach SWRx1. The ping should be successful. Then, enter

telnet 10.90.x1.11 to Telnet to SWRx1. The Telnet should be successful. Enter logout

to end the Telnet session at SWRx1. Now, enter show switch and record the MAC

address and IP address of SWx5:

_________________________________________________

2. On SWx3, enter ping 10.90.x1.11 times 5 to reach SWRx1. Then, enter create

access_profile profile_id 1 profile_name denySWx5 ethernet source_mac FFFFFFFFFFFF

to create an Ethernet ACL. Then, enter config access_profile profile_id 1 add access_id 1

ethernet source_mac port 3 deny to deny traffic from

SWx5 on Port 3.

3. On SWx5, enter ping 10.90.x1.11 times 5 to reach SWRx1, then enter telnet

10.90.x1.11 to Telnet to SWRx1. Both ping and Telnet traffic will fail because of the rule

that is used in Step 2.

4. On SWx3, enter delete access_profile profile_id 1 to remove the ACL created in Step 2.

5. On SWx5, enter ping 10.90.x1.11 times 5 to reach SWRx1. The ping should be

successful because the ACL has been removed.


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6. On SWx3, enter create access_profile profile_id 1 profile_name denyicmp ip icmp type

source_ip_mask 255.255.255.255 to create an IP ACL. Then, enter config access_profile

profile_id 1 add access_id 1 ip source_ip icmp port 3

deny to specify that only ICMP traffic will be denied on Port 3.

7. On SWx5, enter ping 10.90.x1.11 times 5 to reach SWRx1. The ping should fail. Then,enter telnet 10.90.x1.11 to Telnet to SWRx1. The Telnet connection is successful.

8. On SWx3, enter delete access_profile profile_id 1 to remove the ACL created in Step 6.

9. Using the commands from Steps 1 to 8, create an ACL on SWx4 to filter the traffic from

SWx6 to SWRx2. Remember to make changes to the MAC addresses and IP addresses.

Use show access_profile profile_id 1 to verify the ACL configurations. Remove the

ACL when done with this step.

Task 4: Configuring LLDP

In this task, LLDP will be configured on all the six switches.


enable lldp

config lldp ports 1,24 basic_tlvs all enable

config lldp ports 1,24 mgt_addr ipv4 10.90.90.x1 enable

config lldp ports 1,24 admin_status tx_and_rx

config lldp ports 1,24 notification enable

config snmp system_name SWRx1


enable lldp





config snmp system_name SWRx2

3. On SWx3, enter the following commands:

enable lldp





config snmp system_name SWx3


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DCS-Switching



enable lldp







enable lldp

config lldp ports 3 basic_tlvs all enable

config lldp ports 3 mgt_addr ipv4 10.90.90.x5 enable

config lldp ports 3 admin_status tx_and_rx

config lldp ports 3 notification enable



enable lldp

config lldp ports 3 basic_tlvs all enable

config lldp ports 3 mgt_addr ipv4 10.90.90.x6 enable

config lldp ports 3 admin_status tx_and_rx

config lldp ports 3 notification enable


Note: Refer to the Command List for an explanation of each of the above commands.

7. When configuration has been completed for all switches, use show lldp remote_ports

where refers to the ports used on the switches from Step 1 to 6.

Task 5: System Maintenance

In this task, a TFTP server is required.

1. Set up a TFTP server connected to SWRx1 and configure its IP address to

10.90.90.100/24. On all switches, ping the TFTP server to ensure it is reachable.

Note: To set up a TFTP server, configure the PC’s IP address to 10.90.90.100 with asubnet mask of 255.255.255.0, and execute the program DLinkTftpServer.exe.

2. It is a good practice is to back up each switch’s configuration file to the TFTP server. On

all switches, enter upload cfg_toTFTP 10.90.90.100 dest_file .

The output should look similar to this:


63/64



3. If new firmware needs to be installed on the switch, enter download firmware_from

TFTP 10.90.90.100 src_file . The output should look similar to this:


64/64


Lab Verification


• How to enable DHCP services.

• How to configure ACL to filter traffic.

• How to implement LLDP to learn about your neighbors.

• How to use TFTP services to upload or download firmware and configuration files.

dcs-switching lab guide v1.8

Documents