R3102-R3103-HP 6600/HSR6600 Routers High Availability Configuration Guide

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DLDP neighbor state
A DLDP neighbor can be in one of the three states described in Table 17.
Table 17 DLDP neighbor states
DLDP neighbor state
Description
Unknown
A neighbor is in this state when it is just detected and is being probed. A neighbor
is in this state only when it is being probed. It transits to Two way state or
Unidirectional state after the probe operation finishes.
Two way
A neighbor is in this state after it receives response from its peer. This state indicates
the link is a two-way link.
Unidirectional
A neighbor is in this state when the link connecting it is detected to be a
unidirectional link. After a device transits to this state, the corresponding neighbor
entries maintained on other devices are removed.
DLDP configuration task list
For DLDP to work correctly, enable DLDP on both sides and make sure these settings are consistent:
the interval to send Advertisement packets, DLDP authentication mode, and password.
DLDP does not process any Link Aggregation Control Protocol (LACP) events. The links in an
aggregation are treated as individual links in DLDP.
Make sure that the DLDP version running on devices on the two ends are the same.
Complete the following tasks to configure DLDP:
Task
Remarks
Configuring the duplex mode and speed of an Ethernet interface
Required
Enabling DLDP
Required
Setting DLDP mode
Optional
Setting the interval to send advertisement packets
Optional
Setting the DelayDown timer
Optional
Setting the port shutdown mode
Optional
Configuring DLDP authentication
Optional
Resetting DLDP state
Optional
Configuring the duplex mode and speed of an
Ethernet interface
To make sure DLDP works correctly on a link, you must configure the full duplex mode for the ports at
two ends of the link, and configure a speed for the two ports, rather than letting them negotiate a
speed.
To configure the duplex mode and speed of an Ethernet interface: