Configuring Bfd For Ipv6 Bgp; Displaying And Maintaining Ipv6 Bgp; Displaying Bgp - HPE 5800 Series Configuration Manual

Step
Enable route reflection
5.
between clients.
Configure the cluster ID of
6.
the route reflector.

Configuring BFD for IPv6 BGP

IPv6 BGP maintains neighbor relationships based on the keepalive timer and holdtime timer, which
are set in seconds. IPv6 BGP defines that the holdtime interval must be at least three times the
keepalive interval. This mechanism makes the detection of a link failure rather slow and thus causes
a large quantity of packets to be dropped especially when the failed link is a high-speed link. You can
enable BFD to detect the link to a peer. BFD can quickly detect any link failure and thus reduce
network convergence time.
After a link failure occurs, BFD may detect the failure before the system performs GR and as a result,
GR will fail. Therefore, if GR capability is enabled for IPv6 BGP, use BFD with caution. For more
information about BFD, see High Availability Configuration Guide.
IMPORTANT:
Before you configure BFD for IPv6 BGP, you must enable BGP.
To enable BFD for a BGP peer:
Step
Enter system view.
1.
Enable BGP and enter BGP
2.
view.
Enter IPv6 address family
3.
view or IPv6 BGP-VPN
instance view.
Enable BFD for the specified
4.
BGP peer.

Displaying and maintaining IPv6 BGP

Displaying BGP

Task
Display IPv6 BGP peer group
information.
Display IPv6 BGP advertised
routing information.
Display IPv6 BGP AS path
information.
Command
reflect between-clients
reflector cluster-id cluster-id
Command
system-view
bgp as-number
ipv6-family [ vpn-instance
vpn-instance-name ]
peer ipv6-address bfd
Command
display bgp ipv6 group [ ipv6-group-name ] [ |
{ begin | exclude | include } regular-expression ]
display bgp ipv6 network [ | { begin | exclude |
include } regular-expression ]
display bgp ipv6 paths [ as-regular-expression | |
{ begin | exclude | include } regular-expression ]
335
Remarks
Optional.
Enabled by default.
Optional.
By default, a route reflector uses
its router ID as the cluster ID.
Remarks
N/A
Not enabled by default.
N/A
Not enabled for any BGP peer by
default.
Remarks
Available in
any view.
Available in
any view.
Available in
any view.