Enabling Snmp Notifications For Bgp; Enabling Logging Of Session State Changes - HP 5500 EI series Configuration Manual

exchange is not completed within the time, the GR restarter does not receive new routes. Instead,
the GR restarter updates its routing table and forwarding table with the BGP routes already
learned to complete BGP route convergence. The GR helper removes the stale routes.
Follow these guidelines when you configure BGP GR:
The End-Of-RIB indicates the end of route updates.
•
The maximum time to wait for the End-of-RIB marker configured on the local end is not advertised
•
to the peer. It controls the time for the local end to receive updates from the peer.
Perform the following configuration on the GR restarter and GR helper.
To configure BGP GR:
Step
1. Enter system view.
2. Enter BGP view.
3. Enable GR capability for BGP.
4. Configure the GR timer.
5. Configure the maximum time to
wait for the End-of-RIB marker.

Enabling SNMP notifications for BGP

This feature enables generating SNMP notifications for BGP upon neighbor state changes, as defined in
RFC 4273. The SNMP notifications include the neighbor address, the code and subcode of the most
recent error, and the current neighbor state. The generated SNMP notifications are sent to the SNMP
module. The SNMP module determines how to output the notifications according to the configured output
rules.
For more information about SNMP notifications, see Network Management and Monitoring
Configuration Guide.
To enable SNMP notifications for BGP:
Step
1. Enter system view.
2. Enable SNMP notifications
for BGP.

Enabling logging of session state changes

Perform this task to enable BGP to log BGP session establishment and disconnection events. To view the
log information, use the display bgp peer ipv4 unicast log-info command or the display bgp peer ipv6
Command
system-view
bgp as-number
graceful-restart
graceful-restart timer restart
timer
graceful-restart timer
wait-for-rib timer
Command
system-view
snmp-agent trap enable bgp
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Remarks
N/A
N/A
By default, GR capability is
disabled for BGP.
The default setting is 150 seconds.
The time that a peer waits to
reestablish a session must be less
than the hold time.
The default setting is 180 seconds.
Remarks
N/A
By default, SNMP notifications for BGP
are enabled.