Configuring Dldp Functions; Establishing The Configuration Task; Enabling Dldp - Huawei Quidway S3700 Series Configuration Manual

Quidway S3700 Series Ethernet Switches
Configuration Guide - Reliability
physical link, and DLDP identifies the remote device and unidirectional link and disables
unreachable interfaces. The auto negotiation mechanism and DLDP work together to detect and
close unidirectional links on the physical and logical interfaces. If the interfaces on both ends
of the link work normally on the physical layer, DLDP checks the connection and packet
exchange between the two interfaces on the link layer. This process cannot be implemented
through the auto negotiation mechanism.

1.2 Configuring DLDP Functions

This section describes how to configure DLDP functions.

1.2.1 Establishing the Configuration Task

Applicable Environment
On a network, unidirectional link faults often occur. To prevent network faults caused by
unidirectional links, you can enable DLDP on interfaces at two ends of a pair of fibers or a copper
twisted pair to monitor the link status. If a unidirectional link exists, DLDP automatically
disables the interface connected to the link or prompts you to manually disable the interface.
Unidirectional links can be tested only when the devices on both ends of the fibers and copper
twisted pairs support DLDP functions.
Pre-configuration Tasks
Before configuring DLDP, complete the following task:
l
Data Preparation
To configure DLDP, you need the following data.
No.
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1.2.2 Enabling DLDP

Procedure
Step 1 Run:
system-view
Issue 01 (2011-10-26)
Configuring the interfaces at both ends to work in non-auto-negotiation mode
Data
Type and number of each interface
(Optional)Name of the interface group
(Optional) Interval for sending Advertisement packets
(Optional) Value of the Delay Down timer
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1 DLDP Configuration
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