Procedure
Step 1 Run the reset dldp statistics [ interface interface-type interface-number ] command in the user
view to clear the statistics of DLDP packets on an interface.
----End
1.5 Configuration Examples
This section provides a configuration example of DLDP.
1.5.1 Example for Configuring DLDP
Networking Requirements
As shown in Figure 1-3, two S6700s are connected through a pair of optical fibers. On a fiber,
RX indicate the receive end, and TX indicates the transmit end. DLDP is enabled on the
interconnected interfaces. If the Rx fiber on Switch A fails, Switch A cannot receive optical
signals. In this case, XGE 0/0/1 of Switch A becomes Down and cannot send or receive any
packets. However, the Tx fiber on Switch B still sends optical signals, and Switch B can receive
optical signals because the Tx fiber on Switch A is working normally. Therefore, the link status
on Switch B is still Up. If Switch B does not receive any DLDP packet from Switch A within
the neighbor aging time, XGE 0/0/1 of Switch B changes to unidirectional state. To prevent
network faults, DLDP disables XGE 0/0/1 of Switch B.
Figure 1-3 Disconnection of one fiber
SwitchB
XGE0/0/1
XGE0/0/1
SwitchA
RX
TX
RX
TX
Configuration Roadmap
The configuration roadmap is as follows:
1. Configure the interfaces at both ends to work in non-auto-negotiation mode.
2. Enable DLDP.
3. Set the operation mode of DLDP.
4. Set the interval for sending Advertisement packets.
Quidway S6700 Series Ethernet Switches
Configuration Guide - Reliability 1 DLDP Configuration
Issue 01 (2011-07-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
12
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