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Configuring ldp frr, Resetting ldp sessions, Enabling snmp notifications for ldp – H3C Technologies H3C S6800 Series Switches User Manual

Page 48: Displaying and maintaining ldp

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Configuring LDP FRR

LDP FRR is based on IP FRR, and is enabled automatically after IP FRR is enabled. For information about
configuring IP FRR, see Layer 3—IP Routing Configuration Guide.

Resetting LDP sessions

Changes to LDP session parameters take effect only on new LDP sessions. To apply the changes to an
existing LDP session, you must reset all LDP sessions by executing the reset mpls ldp command.
Execute the reset mpls ldp command in user view.

Task Command

Remarks

Reset LDP sessions.

reset mpls ldp [ vpn-instance
vpn-instance-name ] [ peer peer-id ]

If you specify the peer keyword, this
command resets the LDP session to the

specified peer without validating the
session parameter changes.

Enabling SNMP notifications for LDP

This feature enables generating SNMP notifications for LDP upon LDP session changes, as defined in RFC

3815. The generated SNMP notifications are sent to the SNMP module.
To enable SNMP notifications for LDP:

Step Command

Remarks

1.

Enter system view.

system-view

N/A

2.

Enable SNMP notifications
for LDP.

snmp-agent trap enable ldp

By default, SNMP notifications for
LDP are enabled.

For more information about SNMP notifications, see Network Management and Monitoring

Configuration Guide.

Displaying and maintaining LDP

Execute display commands in any view.

Task Command

Display LDP discovery information.

display mpls ldp discovery [ vpn-instance vpn-instance-name ]
[ interface interface-type interface-number | peer peer-lsr-id |

targeted-peer peer-lsr-id ] [ verbose ] [ standby slot slot-number ]

Display LDP FEC-label mapping
information.

display mpls ldp fec [ vpn-instance vpn-instance-name ]
[ destination-address mask-length | summary ] [ standby slot
slot-number ]

Display LDP interface information.

display mpls ldp interface [ interface-type interface-number ]