huawei training
DESCRIPTION
vlan trainingTRANSCRIPT
7/18/2019 Huawei Training
http://slidepdf.com/reader/full/huawei-training 1/21
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
www.huawei.com
QinQ Principles
7/18/2019 Huawei Training
http://slidepdf.com/reader/full/huawei-training 2/21
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
Foreword
QinQ encapsulates public network VLAN tagging besides
private network VLAN tagging. In the public network messages
transfer only based on the public network VLAN tag. QinQ
provides a kind of simple layer 2 VPN tunnel to the user. This
section aims to introduce the basic principles andimplementation of QinQ.
Page 2
7/18/2019 Huawei Training
http://slidepdf.com/reader/full/huawei-training 3/21
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
Objectives
Upon completion of this course, you will be able to:
Understand QinQ basic principles and implementation
Master QinQ basic configuration
Master the technical application of QinQ
Page 3
7/18/2019 Huawei Training
http://slidepdf.com/reader/full/huawei-training 4/21
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
Contents
QinQ introduction
QinQ basic principles
QinQ configuration
Page 4
7/18/2019 Huawei Training
http://slidepdf.com/reader/full/huawei-training 5/21
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 5
QinQ
What is QinQ?
Tunnel protocol based on 802.1Q encapsulation
The packet is encapsulated by two layers of VLAN Tagging
QinQ advantages
Solves the increasingly deficient public network VLAN ID resources
Users can plan private network VLAN IDs
Provides a simple layer-2 VPN solution
Gives the user network a higher independence
7/18/2019 Huawei Training
http://slidepdf.com/reader/full/huawei-training 6/21
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
Contents
QinQ introduction
QinQ basic principles
QinQ configuration
Page 6
7/18/2019 Huawei Training
http://slidepdf.com/reader/full/huawei-training 7/21HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 7
The Implementation Method Based on
Traditional 802.1Q Protocol
SWBSWA
SWC
SWD SWE
Host A
Host B
ISP Network
LAN A
LAN B
Trunk VLAN 200-300 Trunk VLAN 200-300
Trunk VLAN 200-300
Trunk VLAN 200-300
Trunk VLAN 200-300
7/18/2019 Huawei Training
http://slidepdf.com/reader/full/huawei-training 8/21
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 8
QinQ Implementation
SWBSWA
SWC
SWD SWE
Host A
Host B
ISP Network
LAN A
LAN B
Trunk VLAN 200-300 QinQ access port
belongs to VLAN 3
Trunk VLAN 200-300
QinQ access port
belongs to VLAN 3
Trunk VLAN 3
7/18/2019 Huawei Training
http://slidepdf.com/reader/full/huawei-training 9/21
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 9
QinQ Encapsulation
DA SA TYPE DATA FCS
DA SA TAG TYPE DATA FCS
Untagged frame
Tagged Frame
0x8100 PRI
C
F
I
VLAN ID 12b
TPID TCI
6B 6B 2B 64-1500B 4B
6B 6B 2B 64-1500B 4B4B
2B2B
DA SA Outer TAG Inner TAG TYPE DATA FCS
QinQ encapsulation
6B 4B 2B 64-1500B 4B4B6B
7/18/2019 Huawei Training
http://slidepdf.com/reader/full/huawei-training 10/21
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 10
SWBSWA
SWC
SWD SWE
Host A
Host B
ISP Network
LAN A
LAN B
Trunk VLAN 200-300 QinQ access port
belongs to VLAN 3
Trunk VLAN 200-300
QinQ access port
belongs to VLAN 3
Trunk VLAN 3
3
Data Forwarding Process
200-300
3
200-300
200-300
200-300
7/18/2019 Huawei Training
http://slidepdf.com/reader/full/huawei-training 11/21
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
QinQ classification
QinQ can be classified based on the following:
Based on port QinQ
Basic port based QinQ
Flexible QinQ
VLAN stacking
Based on flow flexible QinQ
Based on ACL flexible QinQ
Page 11
7/18/2019 Huawei Training
http://slidepdf.com/reader/full/huawei-training 12/21
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
Based on port QinQ
If this function is configured on the port, equipment will add a VLAN ID
for the packets which come from this port as outer layer VLAN tag of the
port PVID.
Port based QinQ is achieved through the configuration of the dot1q-
tunnel type.
When port type is dot1q-tunnel, the added VLAN of this port doesn’t
support layer 2 multicast functionality.
Page 12
7/18/2019 Huawei Training
http://slidepdf.com/reader/full/huawei-training 13/21
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
Flexible QinQ
Various conditions can allow flexible QinQ to add the service VLAN (S-
VLAN) tagging for incoming packets.
Specified conditions include an incoming packets’ outer tag VLAN,
or VLAN with 802.1p.
Implemented by configuring the VLAN Stacking on the port.
Strengths:
Compared to port based QinQ, flexible QinQ can choose add S-
VLAN tag or not according to the outer VLAN tag and 802.1p, and
the S-VLAN tag can be configured.
Page 13
7/18/2019 Huawei Training
http://slidepdf.com/reader/full/huawei-training 14/21
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
Flow based flexible QinQ
Flow based flexible QinQ is configured by global configuration of flow
classification and flow behavior.
Strengths:
Compared to flexible QinQ, flow based flexible QinQ also can add S-
VLAN tag according to the packets’ inlayer VLAN, Configuration
range is more flexible. Such as:
− Inlayer VLAN, inlayer VLAN+802.1p, out layer VLAN, out
layer+802.1p and so on
To understand flow based flexible QinQ it it necessary to know QoS
first, and some basic principles in this course.
Page 14
7/18/2019 Huawei Training
http://slidepdf.com/reader/full/huawei-training 15/21
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
Contents
QinQ introduction
QinQ basic principles
QinQ configuration
Page 15
7/18/2019 Huawei Training
http://slidepdf.com/reader/full/huawei-training 16/21
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 16
SWBSWA
SWC
SWD SWE
Host A
Host B
ISP Network
LAN A
LAN B
[SWA]interface ethernet 0/1
[SWA-Ethernet0/1]port link-type trunk[SWA-Ethernet0/1]port trunk permit vlan 200 to 300
QinQ Configuration
0/1
1/0/1
0/1
1/0/2
[SWE]interface ethernet 0/1
[SWE-Ethernet0/1]port link-type trunk
[SWE-Ethernet0/1]port trunk permit vlan 200 to 300
VLAN 200-300
VLAN 200-300Host C
Host D
Trunk VLAN 3
7/18/2019 Huawei Training
http://slidepdf.com/reader/full/huawei-training 17/21
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 17
SWBSWA
SWC
SWD SWE
Host A
ISP NetworkLAN A
LAN B
[SWB]vlan 3
[SWB]interface ethernet 1/0/1
[SWB-Ethernet1/0/1]port access vlan 3[SWB-Ethernet1/0/1]stp disable
[SWB-Ethernet1/0/1]undo ntdp enable
[SWB-Ethernet1/0/1]vlan-vpn enable
[SWB]interface Ethernet 1/0/2
[SWB-Ethernet1/0/2]port link-type trunk
[SWB-Ethernet1/0/2]port trunk permit vlan 3
QinQ Configuration
0/1
1/0/1
0/1
1/0/2
Host B
Host C
Host D
VLAN 200-300
VLAN 200-300
7/18/2019 Huawei Training
http://slidepdf.com/reader/full/huawei-training 18/21
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 18
SWBSWA
SWC
SWD SWE
Host A
ISP Network
LAN A
LAN B
[SWC]vlan 3[SWC]inter eth 1/0/1
[SWC-Ethernet1/0/1]port link-type trunk
[SWC-Ethernet1/0/1]port trunk permit vlan 3
[SWC]interface ethernet 1/0/2
[SWC-Ethernet1/0/2]port link-type trunk
[SWC-Ethernet1/0/2]port trunk permit vlan 3
QinQ Configuration
0/1
1/0/1
0/1
1/0/2
Host B
Host C
Host D
VLAN 200-300
VLAN 200-300
7/18/2019 Huawei Training
http://slidepdf.com/reader/full/huawei-training 19/21
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 19
SWBSWA
SWC
SWD SWE
Host A
ISP NetworkLAN A
LAN B
[SWB]vlan-vpn tpid 9100[SWB]interface ethernet 1/0/2
[SWB-Ethernet1/0/2]port link-type trunk
[SWB-Ethernet1/0/2]port trunk permit vlan 3
[SWB-Ethernet1/0/2]vlan-vpn uplink enable
TPID Configuration
0/1
1/0/1
0/1
1/0/2
Host B
Host C
Host D
VLAN 200-300
VLAN 200-300
7/18/2019 Huawei Training
http://slidepdf.com/reader/full/huawei-training 20/21
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 20
Summary
What is the function of QinQ?
When forwarding the QinQ frame in
the public network, will the inner tag
be checked?
What is the default TPID in the outer
tag of a QinQ frame? Can it be
modified?
7/18/2019 Huawei Training
http://slidepdf.com/reader/full/huawei-training 21/21
Thank you
www.huawei.com