Enabling Logging For Bgp Route Flapping; Displaying And Maintaining Ipv6 Mpls L3Vpn - HP FlexNetwork 10500 Series Configuration Manual

Enabling logging for BGP route flapping

This feature enables BGP to generate logs for BGP route flappings that trigger log generation. The
generated logs are sent to the information center. For the logs to be output correctly, you must also
configure information center on the device. For more information about the information center, see
Network Management and Monitoring Configuration Guide.
To enable logging for BGP route flapping:
Step
1. Enter system view.
2. Enter BGP instance view.
3. Enter BGP VPNv6 address
family view.
4. Enable logging for BGP
route flapping.

Displaying and maintaining IPv6 MPLS L3VPN

You can soft-reset or reset BGP sessions to apply new BGP configurations. A soft reset operation
updates BGP routing information without tearing down BGP connections. A reset operation updates
BGP routing information by tearing down, and then re-establishing BGP connections. Soft reset
requires that BGP peers have route refresh capability.
Execute the following commands in user view to soft reset or reset BGP connections:
Task
Manually soft reset BGP sessions for
VPNv6 address family.
Reset BGP sessions for VPNv6
address family.
For more information about the refresh bgp vpnv6 and reset bgp vpnv6 commands, see Layer
3—IP Routing Command Reference.
Execute the following commands in any view to display IPv6 MPLS L3VPN:
Task
Display the IPv6 routing table for a VPN
instance.
Display information about a specified
VPN instance or all VPN instances.
Display IPv6 FIB information for a VPN
instance.
Display BGP VPNv6 peer group
information.
Command
system-view
bgp as-number [ instance
instance-name ]
address-family vpnv6
log-route-flap monitor-time
monitor-count [ log-count-limit |
route-policy route-policy-name ] *
Command
refresh bgp [ instance instance-name ] { ipv4-address
[ mask-length ] | all | external | group group-name | internal }
{ export | import } vpnv6
reset bgp [ instance instance-name ] { as-number | ipv4-address
[ mask-length ] | all | external | internal | group group-name }
vpnv6
Command
display ipv6 routing-table vpn-instance vpn-instance-name
[ verbose ]
display ip vpn-instance [ instance-name vpn-instance-name ]
display ipv6 fib vpn-instance vpn-instance-name [ ipv6-address
[ prefix-length ] ]
display bgp [ instance instance-name ] group vpnv6
[ group-name group-name ]
286
Remarks
N/A
N/A
N/A
By default, logging for BGP
route flapping is disabled.