Configuring Bfd For Ipv6 Bgp - HPE FlexNetwork HSR6800 Configuration Manual

Step
14. Keep all routes from the 6PE
peer or peer group, including
routes not passing the
inbound filtering policy.
15. Configure the device as a
route reflector and the 6PE
peer or peer group as a
client.
16. Configure an upper limit of
IPv6 address prefixes that
can be received from the
6PE peer or peer group.
17. Apply a routing policy to
routes outgoing or incoming
from the 6PE peer or peer
group.
18. Display information about
the 6PE peer or peer group.
19. Display routes from or to the
6PE peer or peer group.
20. Perform soft reset on the
inbound or outbound BGP
6PE connection.
21. Reset a BGP 6PE
connection.

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.
Before you configure BFD for IPv6 BGP, you must enable BGP.
After a link failure occurs, BFD can 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.
To enable BFD for a BGP peer:
Step
Enter system view.
1.
Command
peer { group-name | ipv4-address }
keep-all-routes
peer { group-name | ipv4-address }
reflect-client
peer { group-name | ipv4-address }
route-limit limit [ percentage ]
peer { group-name | ipv4-address }
route-policy route-policy-name
{ import | export }
display bgp ipv6 peer [ group-name
log-info | ipv4-address verbose ] [ |
{ begin | exclude | include }
regular-expression ]
display bgp ipv6 routing-table
peer ipv4-address
{ advertised-routes |
received-routes } [ network-address
prefix-length | statistic ] [ | { begin |
exclude | include }
regular-expression ]
refresh bgp ipv6 ipv4-address
{ export | import }
reset bgp ipv6 ipv4-address
Command
system-view
373
Remarks
Optional.
Not kept by default.
Optional.
Not configured by default.
Optional.
No limitation by default.
Optional.
Not applied by default.
Optional.
Available in any view.
Optional.
Available in any view.
Optional.
Available in user view.
Optional.
Available in user view.
Remarks
N/A