Huawei quidway s7700 - Maintaining Layer 2 Protocol Transparent Transmission; Debugging Layer 2 Protocol Transparent Transmission; Configuration Examples; Example for Configuring Interface-Based Layer 2 Protocol Transparent Transmission

Procedure
l Run the display l2protocol-tunnel group-mac { all | protocol-type | user-defined-
protocol protocol-name } command to check information about transparent transmission
of specified or all Layer 2 protocol packets.
----End
11.6 Maintaining Layer 2 Protocol Transparent
Transmission
This section describes how to debug Layer 2 protocol transparent transmission.
11.6.1 Debugging Layer 2 Protocol Transparent Transmission
Context
CAUTION
Debugging affects the performance of the system. So, after debugging, run the undo debugging
all command to disable it immediately.
When a fault occurs during Layer 2 protocol transparent transmission, run the following
debugging command in the user view to locate the fault.
Procedure
l Run the debugging l2protocol-tunnel [ msg | error | event ] command in the user view
to enable Layer 2 protocol transparent transmission.
----End
11.7 Configuration Examples
This section provides examples for configuring interface, VLAN, and QinQ based Layer 2
protocol transparent transmission.
11.7.1 Example for Configuring Interface-based Layer 2 Protocol
Transparent Transmission
Networking Requirements
As shown in Figure 11-6, CEs on user networks communicate with each other through PEs and
STP runs on user networks; therefore, STP packets sent from CEs must be transmitted through
the backbone network between PEs. Each PE interface is connected to only one CE and receives
STP packets from the CE. In this scenario, configure interface-based Layer 2 protocol transparent
transmission.
Quidway S7700 Smart Routing Switch
Configuration Guide - Ethernet 11 Layer 2 Protocol Transparent Transmission Configuration
Issue 01 (2011-07-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
589