Binding a VLL to the Main Interface and VLAN Encapsulation

Latest reply: Oct 31, 2018 17:00:13 518 5 10 1

4.1 Configuration Information:
On PE1:
#
Interface GigabitEthernet2/0/16
 Undo portswitch
 Mpls l2vc 111.111.111.111 90 tagged
#
On PE2:
#
Interface GigabitEthernet4/0/16
 Undo portswitch
 Mpls l2vc 90.90.90.90 90 tagged
#
4.2 Packets Entering the Tunnel:
1. If the packet sent by CE1 carries a layer of VLAN, as shown in Figure 1:
 figure55
PE1 forwards the VLAN information in the original packet to the peer PE2. The packets received by PE2 are:
 figure56
The processing of each version is the same.
2. If the packet sent by CE1 has two layers of VLANs:
 figure57
PE1 encapsulates the two VLANs in the packets and forwards the packets to PE2. The packets received by PE2 are:
 figure58
The processing of each version is the same.
3. If the packet sent by CE1 does not carry a VLAN, the packet encapsulates the MPLS header on the original packet and then forwards it to PE2.
4.3 Packet Outbound Tunnel:
When a packet is sent out of the tunnel, regardless of whether the packet received from the peer PE carries the VLAN information of the original packet, the version of the version does not process any of the packets. The MPLS header is directly stripped and then transparently transmitted. When the local CE, that is, the PE2 receives the packets from the PE1, the VLAN value of the original packet is forwarded to CE2.
4.4 Supplementary notes:
NA

 

The summary of  Handling of VLANs in Packets in Various Versions of L2VPN Configurations .http://forum.huawei.com/enterprise/en/forum.php?mod=viewthread&tid=453137

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Created Oct 30, 2018 12:51:29 Helpful(0) Helpful(0)

can you describe it more detail for below?
When a packet is sent out of the tunnel, regardless of whether the packet received from the peer PE carries the VLAN information of the original packet, the version of the version does not process any of the packets. The MPLS header is directly stripped and then transparently transmitted. When the local CE, that is, the PE2 receives the packets from the PE1, the VLAN value of the original packet is forwarded to CE2.
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MVE Created Oct 30, 2018 15:19:41 Helpful(0) Helpful(0)

thanks
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Passion%20to%20learn
Created Oct 31, 2018 11:41:27 Helpful(0) Helpful(0)

your document is work for me , i get the point , fix my issue by your doc thanks you very much ,
also hope you public more doc that levle like this .
would you please also mention where from the technical detail , i can found it from orignial part .
from orignial part i can found more correct parameter , this is more important .
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Created Oct 31, 2018 16:03:07 Helpful(0) Helpful(0)

In network development, various Layer 2 networks have been deployed and are still in use, for example, Ethernet, Asynchronous Transfer Mode (ATM), Frame Relay (FR), and High-level Data Link Control (HDLC) networks. These Layer 2 networks are isolated from one another because they use different Layer 2 protocols. However, there is an increasing demand for direct communication between different Layer 2 networks.
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Created Oct 31, 2018 17:00:13 Helpful(0) Helpful(0)


Before binding the main interface to the VLL or VSI, run the mpls l2vpn vlan-stacking stack-vlan command to specify a VLAN for the main interface.
To use the XGE interface, GE interfaces, 40GE interface, 100GE interface, or Eth-Trunk interfaces of the device as the AC interfaces of PEs, you need to run the undo portswitch command.
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