fsu computer science internet teaching lab raymond curci a project submitted to the department of...
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FSU Computer ScienceInternet Teaching Lab
Raymond Curci A Project submitted to the Department of Computer Science
in partial fulfillment of the requirements for the degree of Master of Science
Computer Network and System Administration Track
December 8, 2000
www.cs.fsu.edu/~curci/itl
Revision 1.0 s10.ppt
OBJECTIVE
• Design, implement and document a highly flexible hands-on Internetwork Teaching Lab to augment systems administration and data communications courses including the creation of several sample lab exercises.
DESIGN GOALS
• Low cost
• Secure design
• Extensible design
• Ease of soft reconfiguration
• Remote access
• Distributed design
FSU Computer Science Internet Teaching Lab Hardware
• Cisco 7000 routers (R1, R2, R3, R4)
• Cisco 4500 router (R5)
• Cisco 2511 router/firewall (R6)
• Cisco 35xxXL switches (CAT1, CAT2, CAT3)
• UNIX and NT computers
EQUIPMENT CABINETS
EQUIPMENT CABINETS 2
Cisco 7000 Routers (R1,R2,R3,R4)• Donated by CAIDA• FDDI and Serial
WAN ports• Single 6-port
Ethernet card donated by Cisco
• End of life• Previously deployed
on InternetMCI backbone.
• 5 slots available for interface cards
• 145 lbs each
CONSOLE PORTDB25F
AUX PORTDB25M
PCMCIAFLASH SOCKET
E2/0 DB15F AUI(R1 ONLY)
E2/5 DB15F AUI(R1 ONLY)
SERIAL1/0 DB60F
FDDI0/0 MICPHYSICAL "A"
FDDI0/0 MICPHYSICAL "B"
7000
17.5
"W x 19.5
"H x
24.2
5"D
Cisco 4500 Router (R5)
• Formerly CS Department Router with upgraded memory
• 1x FastEthernet port
• 2x Ethernet Ports
• 1x FDDI Port
FastEthernet0100baseTX RJ45
FastEthernet0MII
FDDI0 MICSAS MM
OPTICALBYPASS
Ethernet110baseT RJ45
Ethernet1AUI DB15F
Ethernet0AUI DB15F
Ethernet010baseT RJ45
CONSOLEPORT DB25F
AUX PORTDB25M
4500
17.5
"W x 3.5"H
x 17.5"D
Cisco 2511 Router/Firewall (R6)
• Purchased used
• 1x Ethernet
• 2x Serial WAN
• 16x Async RS-232
• Out of band console access via “Inverse Telnet”
• Doubles as firewall
AUX PORTRJ45
CONSOLE PORTRJ45
SERIAL1DB60F
SERIAL0DB60F
ETHERNET0AUI DB15F
ASYNC9-16HD68F
ASYNC1-8HD68F
2511
17.5
"W x 1.75
"H x
10.5
"D
Cisco Catalyst 3524XL & 3548XL Ethernet Switches (cat1, cat2, cat3)• Layer 2 10/100
Ethernet Switches• Gigabit Ethernet
Uplinks with 1000baseSX GBICs
• Supports VLANs• Supports ISL and
802.1Q Trunking
UNIX and NT Computers
SUN LINUX NT40
TE
AM
5
ITL LAB DIAGRAM
SU
NLIN
UX
NT
40
SU
NLIN
UX
NT
40
TEAM 1TEAM 2
SUN LINUX NT40
SUN LINUX NT40
SUN LINUX NT40
SUN LINUX NT40
TE
AM
3T
EA
M 4
TE
AM
5T
EA
M 6
Eth
erne
tCOMP SCI
NET
100MbpsFDDI Ring
R5 (4500) R1 (7000)
R4 (7000)
generic-diagram.vsd 03-DEC-2000 R.Curci
SU
NLIN
UX
NT
40
SU
NLIN
UX
NT
40
TEAM 7 TEAM 8
LINUXNT40
S1S2
R3 (7000)
R2 (7000)
FW/R6 (2511)
CAT1,CAT2,CAT3(3524XL,3548XL,3548XL)
FSU NET
INTERNET
FSU Computer Science Internet Teaching Lab
ITL LAB DIAGRAM Detail Only
FA
0
E0
E1
E2/0
E2/1
E2/2
E2/3
E2/4
E2/5
ET
HE
RN
ET
FA
ST
ET
HE
RN
ET
RS
-232F
DD
IA
TM
SE
RIA
L WA
N
KE
Y:
S1/3DC
ES1/0S1/6 FDDI0/0
S1/4
S1/2DCES1/1 DCE
FDDI0 FDD
I0/0 FD
DI0/0
S1/1DCE
S1/3
S1
/4S
1/2 DC
E
S1/3 DCE
S1/1 DCE
S1
/3
S1/4
S1/2
S1/6
S1 DCE
S0 DCE
27 8 51
34
E0
7 8 9 1 2 3 4 5 61011
FDDI0/0
ITL LAB DIAGRAM w/DETAIL
SU
NLIN
UX
NT
40
SU
NLIN
UX
NT
40
TEAM 1TEAM 2
SUN LINUX NT40
SUN LINUX NT40
SUN LINUX NT40
SUN LINUX NT40
TE
AM
3T
EA
M 4
TE
AM
5T
EA
M 6
Eth
erne
tCOMP SCI
NET
100MbpsFDDI Ring
R5 (4500) R1 (7000)
R4 (7000)
generic-diagram.vsd 03-DEC-2000 R.Curci
SU
NLIN
UX
NT
40
SU
NLIN
UX
NT
40
TEAM 7 TEAM 8
FA
0
E0
E1
E2/0
E2/1
E2/2
E2/3
E2/4
E2/5
LINUXNT40
S1S2
R3 (7000)
R2 (7000)
FW/R6 (2511)
CAT1,CAT2,CAT3(3524XL,3548XL,3548XL)
FSU NET
INTERNET
FSU Computer Science Internet Teaching LabE
TH
ER
NE
TF
AS
T E
TH
ER
NE
TR
S-232
FD
DI
AT
MS
ER
IAL W
AN
KE
Y:
S1/3DC
ES1/0S1/6 FDDI0/0
S1/4
S1/2DCES1/1 DCE
FDDI0 FDD
I0/0 FD
DI0/0
S1/1DCE
S1/3
S1
/4S
1/2
DC
E
S1/3 DCE
S1/1 DCE
S1
/3
S1/4
S1/2
S1/6
S1 DCE
S0 DCE
27 8 51
34
E0
7 8 9 1 2 3 4 5 61011
FDDI0/0
FDDI• FDDI DAS
(r1,r2,r3,r4)• FDDI SAS
(r5)• FDDI ring
always in “wrap” state
• No FDDI on R6
FDDI INTERFACES
R2
R3
R4
R1 R5
R6
FDDI 2
Serial WAN
• CSU/DSUs used on 56K, T1, and T3 WAN data circuits.
• Lab uses special back-to-back serial cables without CSU/DSUs
R2R1 CSU/
DSU CSU/DSU
PSTN
T1
INTERNALTIMING
SLAVETIMING
SLAVETIMING
SLAVETIMING
T1 CIRCUIT INTERCONNECT
BACK-TO-BACK SERIAL CABLE
R2R1
SLAVETIMING
INTERNALTIMING
R2
R3
R4
R1
R5
R6
PHYSICAL SERIAL CABLE CONNECTIONS
Serial WAN 2
Frame-Relay
• WAN service sold by phone companies
• Physical data circuits connect routers to nearest frame switch
• PVCs are provisioned across the cloud between routers
Frame-Relay 2
• R3 can emulate Frame-Relay network
• All routers with serial WAN ports can participate, except R5
R2 R3
R4R1
R5R6COMP SCINET
(R3)
Sample Lab Exercises
• Cisco Router Basics
• Cisco Router Debugging
• Topology Discovery Lab
• Start-From-Scratch Lab (RIP)
• RIP Lab
• IGP Lab (RIP,OSPF,IGRP,EIGRP,IS-IS)
• Variable Length Subnet Mask Lab with OSPF
• BGP Lab with Tunnels• ACL Lab• Frame-Relay Lab• Multiprotocol Lab (IPX,
Appletalk)• Spanning Tree Lab• Count-To-Infinity (RIP)
Lab
128.
186.
121.
0/24
VLAN90VLAN80VLAN70VLAN50 VLAN60VLAN40VLAN30VLAN20VLAN10
S1192.168.10.2/24
top-detail.vsd 30-Nov-2000 R.Curci
FW/R6 (2511)
COMP SCINETWORK
10 20 30 40 50 60 70 80 90
LINUX
NT
SUN
LINUX
NT
SUN
LINUX
NT
SUN
LINUX
NT
SUN
LINUX
NT
SUN
LINUX
NT
SUN
LINUX
NT
SUN
LINUX
NT
SUN
Addresses are RFC1918private address space,192.168.XXX.0/24where XXX is thenetwork identifierindicated on thisdiagram. RIP v1 isused internally.
LINUX
NT
SUN
?
?
?
?
??
?
CLOUD VIEW
R1 (7000)
R2 (7000)
R3 (7000)
R4 (7000)
R5 (4500)
S2192.168.10.3/24
Topology Discovery Diagram(Student Version)
12
8.18
6.12
1.0/
24
VLAN90VLAN80VLAN70VLAN50 VLAN60VLAN40VLAN30VLAN20
100MbpsFDDI Ring
VLAN10
R3 (7000)
R5 (4500)
R2 (7000)
R1 (7000) R4 (7000)
S1192.168.10.2/24
1Mbps
500Kbps25
0Kbp
s
500Kbps
1MbpsS1/3
S1/1DCE
S1/2DCE S1/3
DCE
S1/4
S1/4
S1/2DCE
S1/1DCE
S1/2
E2/0E1
FDDI0FDDI0/0
top-detail.vsd 30-Nov-2000 R.Curci
S1/3
FW/R6 (2511)
COMP SCINETWORK
2Mbps
S1DCE
S1/6
E2/5 E0FA0
36
34
24
23
13
12
10 20 30 40 50 60 70 80 90
45
LINUX
NT
SUN
LINUX
NT
SUN
LINUX
NT
SUN
LINUX
NT
SUN
LINUX
NT
SUN
LINUX
NT
SUN
LINUX
NT
SUN
LINUX
NT
SUN
Addresses are RFC1918private address space,192.168.XXX.0/24 whereXXX is the networkidentifier indicated onthis diagram. RIP v1 isused internally.
LINUX
NT
SUN
5544
33
22
11
66
NAT
TOPOLOGY DISCOVERY
S2192.168.10.3/24
Topology Discovery Diagram(Instructor Version)
Sample Instructor Notes
12
8.18
6.12
1.0/
24
VLAN90VLAN80VLAN70VLAN50 VLAN60VLAN40VLAN30VLAN20
100MbpsFDDI Ring
VLAN10
R3 (7000)
R5 (4500)
R2 (7000)
R1 (7000) R4 (7000)
S1192.168.10.2/24
1Mbps
500Kbps25
0Kbp
s
500K
bps
1MbpsS1/3
S1/1DCE
S1/2DCE S1/3
DCE
S1/4
S1/4
S1/2DCE
S1/1DCE
S1/2
E2/0E1
FDDI0FDDI0/0
scratch.vsd 30-Nov-2000 R.Curci
S1/3
FW/R6 (2511)
COMP SCINETWORK
2Mbps
S1DCE
S1/6
E2/5 E0FA0
36
34
24
23
13
12
10 20 30 40 50 60 70 80 90
45
LINUX
NT
SUN
LINUX
NT
SUN
LINUX
NT
SUN
LINUX
NT
SUN
LINUX
NT
SUN
LINUX
NT
SUN
LINUX
NT
SUN
LINUX
NT
SUN
Addresses are RFC1918private address space,192.168.XXX.0/24where XXX is thenetwork identifierindicated on thisdiagram. RIP v1 isused internally.
LINUX
NT
SUN
5544
33
22
11
66
NAT
START FROM SCRATCH
S2192.168.10.3/24
Start from Scratch Lab
192.168.40.0/24
T1 192.168.24.0/24
S1/1DCE
rip-layer1.vsd 18-Oct-2000 R.Curci
CENTER FOR ENTERTAINMENT STUDIES
LOS ANGELES NEW YORK
FSU THEATREFSU FILM
100MbpsFDDI Ring
192.168.45.0/24
R3 (7000)
R5 (4500) R1 (7000)
R4 (7000)
192.168.30.0/24
S1S4
S3
192.168.20.0/24
192.
168.
15.0
/24
192.168.10.0/24
T1 192.168.13.0/24
S2
S1/1DCES1/4
R2 (7000)
S1/4
S1/2 S1/3
E2/0
E2/1E1
FDDI0
FDDI0/0
S1/3DCE
S1/2DCE
LOOP0 LOOP0
LOOP0
56Kbps 192.168.34.0/24
56Kbps 192.168.12.0/24
Routing Information Protocol LAB
V
LAN
90
VLA
N80
VLA
N70
VLA
N60
VLA
N50
VLA
N40
VLA
N30
VLA
N20
128.
186.
121.
0/24
100MbpsFDDI Ring
VLA
N10
R5 (4500)
R2 (7000)
R1 (7000)
R4 (7000)
2Mbps
2Mbps
R3 (7000)
S1/3S1/3DCE
S1/6
S1/1DCE
E2/0 E1
FDDI0
vlsm.vsd 04-Nov-2000 R.Curci
F W / R 6 ( 2 5 1 1 )
COMP SCINETWORK
2Mbps
S 1DCE
E2/5 E0FA0
NAT
VLSM LAB
2Mbp
s
S1/2
2Mbps
L0
L1
L2
L3
L0
L1
L2
L3
L0
L1
L2
L3
L0
L1
L2
L3
L0
L1
L2
L3
FDDI0/0
FDDI0/0
FDDI0/0
FDDI0/0
S1/4
S1/2DCE
S1/2 DCE
1 9 2 . 1 6 8 . 3 6 . 3 / 2 4
192.168.36.6/24
S1/4
x.y.z.16
0/2
9x.y.z.1
68
/29
x.y.z.17
6/2
9
x.y.z.18
4/2
9
x.y.z.20
0/2
9x.y.z.1
92
/29
x.y.z.20
8/2
9
x.
y.
z.
21
6/
29
x.y.z.22
4/2
9
x.y.z.128/28
x.y.z.144/29
x.y.z.152/30
x.y.z.156/30
x.y.z.96/28
x.y.z.112/29
x.y.z.120/30
x.y.z.124/30
x.y.z.64/28
x.y.z.80/29
x.y.z.88/30
x.y.z.92/30
x.y.z.32/28
x.y.z.48/29
x.y.z.56/30
x.y.z.60/30
x.y.z.0/28
x.y.z.16/29
x.y.z.24/30
x.y.z.28/30
x.y.z.240/30
x.y.z.244/30
x.y.z.248/30
x.y.z.252/30
x.y.z.232/29
SUMMARIZELOOPBACKS
x.y.z.32/27
SUMMARIZELOOPBACKS
x.y.z.0/27
SUMMARIZELOOPBACKS
x.y.z.64/27
SUMMARIZELOOPBACKS
x.y.z.96/27
SUMMARIZELOOPBACKSx.y.z.128/27
Variable Length Subnet Mask Lab
128.
186.
121.
0/24
COMP SCINETWORK NAT
bgp.vsd 24-Nov-2000 R.Curci
BGP LAB
AS4
R5 (4500)
R2 (7000)
R1 (7000)
R4 (7000)
R3 (7000)
GRE TUNNEL
192.168.223.0/24
GR
E T
UN
NE
L
192.168.212.0/24
GRE TUNNEL
192.168.234.0/24
GR
E T
UN
NE
L19
2.16
8.24
5.0/
24
GRE TUNNEL192.168.215.0/24
AS1
AS3
AS5
AS2
172.16.0.0/19172.16.128.0/19
172.16.96.0/19172.16.32.0/19
TU3
TU2
TU4
TU3
TU5
TU4
TU1TU5
TU2
TU1
172.16.64.0/19
.2
.5.1
.4
.3R6 (2511) 192.168.36.0/24
S1/6
S1DCE
L0
L1
L2
L3
L0
L1
L2
L3
L0
L1
L2
L3
L0
L1
L2
L3
L0
L1
L2
L3
172.16.64.3/24
172.16.65.3/24
172.16.66.3/24
172.16.67.3/24
172.16.96.4/24
172.16.97.4/24
172.16.98.4/24
172.16.99.4/24
172.16.128.5/24
172.16.129.5/24
172.16.130.5/24
172.16.131.5/24
172.16.32.2/24
172.16.33.2/24
172.16.34.2/24
172.16.35.2/24
172.16.0.1/24
172.16.1.1/24
172.16.2.1/24
172.16.3.1/24
FDDI Ring192.168.1.0
/24
BGP PROTOCOL LAB
V
LAN
90
VLA
N80
VLA
N70
VLA
N60
VLA
N50
VLA
N40
VLA
N30
VLA
N20
128.186.121.0/24
100MbpsFDDI Ring
VLA
N10
R5 (4500)
R2 (7000)
R1 (7000)
R4 (7000)
2Mbps
2Mbps
R3 (7000)
S1/3S1/3DCE
S1/6
S1/1DCE
E2/0 E1
FDDI0
acl.vsd 20-Nov-2000 R.Curci
FW/R6 (2511)
COMP SCINETWORK
S1DCE
E2/5 E0FA0
ACL LAB
2Mbp
s
S1/2
2Mbps
L0
L0
L0
L0
FDDI0/0
FDDI0/0
FDDI0/0
FDDI0/0
S1/4
S1/2DCE
S1/2 DCE
S1/4
L0
2Mbps
2Mbp
s
2Mbps
2Mbps
S0DCE
S1/4
S1/3
S1/6
S1/1 DCE
S1/1DCE
Linux
NT
Solaris
TEAM 1
interface E2/0 ip add 192.168.10.1255.255.255.0 ip access-group 110 in ip access-group 111 out
interface E1 ip add 192.168.90.1255.255.255.0 ip access-group 190 in ip access-group 191 out
NAT
L0
NTP TIME SOURCE
ACCESS CONTROL LIST LAB
FDDI Ring192.168.45.0/24
VLA
N90
VLA
N80
VLA
N70
VLA
N60
VLA
N50
VLA
N40
VLA
N30
VLA
N20
128.
186.
121.
0/24
VLA
N10
R5 (4500)
R2 (7000)
R1 (7000)
R4 (7000)
R3 (7000)
E2/0 E1
FDDI0
frame.vsd 25-Nov-2000 R.Curci
FW/R6 (2511)
COMP SCINETWORK
E2/5 E0FA0
FRAME-RELAYLAB
S1/3.1
192.168.36.0/24
FRAME-RELAYSWITCH R3
FDDI0/0
204
402
302
203
102
201
S1/3 DCE
S1/4
S1/2DCE
S1/1DCE
S1/3.1
S1/3.1DCE
S1/0.1
S1DCE
.6
S1/6
.3
192.168.5.0/24
.5
.4
Router R3 ports S1/1, S1/2, S1/3,and S1/4 are emulating a frame-relayWAN switch.Routers use multipoint subinterfacesfor frame-relay connections.Link Management Interface type isANSI.Encapsulation is Frame-Relay IETF.Routing protocol is RIP version 1.
.3
.1
.2
.4
FSUNETWORK
INTERNET
FRAME-RELAY LAB
VLAN90VLAN80VLAN70VLAN50 VLAN60VLAN40VLAN30VLAN20VLAN10
128.
186.
121.
0/24
100MbpsFDDI Ring
R3 (7000)
R5 (4500)
R2 (7000)
R1 (7000)
R4 (7000)
2Mbps
2Mbps
2Mbp
s
S1/3
S1/2DCE
FDDI0
multi-layer3.vsd 03-Nov-2000 R.Curci
FW/R6 (2511)
COMP SCINETWORK
2Mbps
S1DCE
E2/5E0
FA0
NAT
?
MULTIPROTOCOLLAB
IP: 192.168.10.1/24
IPX
NE
T: 10
AP
PLE
AD
DR
: 10.1A
PP
LE Z
ON
E: A
nthropology
IP: 192.168.20.1/24
IPX
NE
T: 20
AP
PLE
AD
DR
: 20.1A
PP
LE Z
ON
E: B
iology
IP: 192.168.30.1/24
IPX
NE
T: 30
AP
PLE
AD
DR
: 30.1A
PP
LE Z
ON
E: C
ompS
ci
IP: 192.168.40.1/24
IPX
NE
T: 40
AP
PLE
AD
DR
: 40.1A
PP
LE Z
ON
E: D
ance
IP: 192.168.50.1/24
IPX
NE
T: 50
AP
PLE
AD
DR
: 50.1A
PP
LE Z
ON
E: E
conomics
IP: 192.168.60.1/24
IPX
NE
T: 60
AP
PLE
AD
DR
: 60.1A
PP
LE Z
ON
E: F
inance
IP: 192.168.70.1/24
IPX
NE
T: 70
AP
PLE
AD
DR
: 70.1A
PP
LE Z
ON
E: G
eology
IP: 192.168.80.1/24
IPX
NE
T: 80
AP
PLE
AD
DR
: 80.1A
PP
LE Z
ON
E: H
istory
IP: 192.168.90.1/24
IPX
NE
T: 90
AP
PLE
AD
DR
: 90.1A
PP
LE Z
ON
E: Insurance
E1E2/0
2Mbps
2Mbps
IP: 192.168.45.5/24IPX NET: FDD1APPLE ADDR: 45.5APPLE ZONE: FDDI
IP: 192.168.45.4/24IPX NET: FDD1APPLE ADDR: 45.4APPLE ZONE: FDDI
FDDI0/0
IP: 192.168.55.5/24IPX NET: 55
IP: 192.168.14.1/24IPX NET: 14APPLE ADDR: 14.1APPLE ZONE: r1r4
IP: 192.168.14.4/24IPX NET: 14APPLE ADDR: 14.4APPLE ZONE: r1r4
IP: 192.168.23.2/24IPX NET: 23APPLE ADDR: 23.2APPLE ZONE: r2r3
IP: 192.168.34.4/24IPX NET: 34APPLE ADDR: 34.4APPLE ZONE: r3r4
IP: 192.168.36.6/24IP: 192.168.36.3/24
S1/6
IP: 192.168.33.3/24IPX NET: 33
IP: 192.168.66.6/24
IP: 192.168.12.2/24IPX NET: 12APPLE ADDR: 12.2APPLE ZONE: r1r2
IP: 192.168.11.1/24IPX NET: 11
IP: 192.168.12.1/24IPX NET: 12APPLE ADDR: 12.1APPLE ZONE: r1r2
IP: 192.168.22.2/24IPX NET: 22
S1/1 DCEIP: 192.168.13.1/24IPX NET: 13APPLE ADDR: 13.1APPLE ZONE: r1r3
IP: 192.168.13.3/24IPX NET: 13APPLE ADDR: 13.3APPLE ZONE: r1r3
S1/1DCE
S1/4
S1/3S1/2
S1/3DCE
S1/1DCE
IP: 192.168.23.3/24IPX NET: 23APPLE ADDR: 23.3APPLE ZONE: r2r3
IP: 192.168.34.3/24IPX NET: 34APPLE ADDR: 34.3APPLE ZONE: r3r4
S1/4
E2/1
E2/
2
E2/3
E2/4
L0
L0
L0
L0
L0
L0
IP: 192.168.44.4/24IPX NET: 44
IPX/APPLETALK LAB
DESIGN GOALS
• Low cost
• Secure design
• Extensible design
• Ease of soft reconfiguration
• Remote access
• Distributed design
Project CD-ROM
• Paper
• Slide show
• Labs
• Visio stencils
• Sysadm Utilities
• Instructor use only!
FSU Computer ScienceInternet Teaching Lab
A Project submitted to the Department of ComputerScience in partial fulfillment of the requirements forthe degree of Master of Science, Computer Network
and System Administration Track
R.CurciFall 2000
Mode 2 CD-ROM XAJOLIET Filesystem
Version: 1.0
THE END
SU
NLIN
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40
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TEAM 1TEAM 2
SUN LINUX NT40
SUN LINUX NT40
SUN LINUX NT40
SUN LINUX NT40
TE
AM
3T
EA
M 4
TE
AM
5T
EA
M 6
Eth
erne
tCOMP SCI
NET
100MbpsFDDI Ring
R5 (4500) R1 (7000)
R4 (7000)
generic-diagram.vsd 03-DEC-2000 R.Curci
SU
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NT
40
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TEAM 7 TEAM 8
FA
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E0
E1
E2/0
E2/1
E2/2
E2/3
E2/4
E2/5
LINUXNT40
S1S2
R3 (7000)
R2 (7000)
FW/R6 (2511)
CAT1,CAT2,CAT3(3524XL,3548XL,3548XL)
FSU NET
INTERNET
FSU Computer Science Internet Teaching LabE
TH
ER
NE
TF
AS
T E
TH
ER
NE
TR
S-232
FD
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AT
MS
ER
IAL W
AN
KE
Y:
S1/3DC
ES1/0S1/6 FDDI0/0
S1/4
S1/2DCES1/1 DCE
FDDI0 FDD
I0/0 FD
DI0/0
S1/1DCE
S1/3
S1
/4S
1/2
DC
E
S1/3 DCE
S1/1 DCE
S1
/3
S1/4
S1/2
S1/6
S1 DCE
S0 DCE
27 8 51
34
E0
7 8 9 1 2 3 4 5 61011
FDDI0/0