Configuring Bgp Route Dampening; Controlling Bgp Path Selection; Specifying A Preferred Value For Routes Received - HPE FlexNetwork HSR6800 Configuration Manual

Step
Enter system view.
1.
Enter BGP view or
2.
BGP-VPN instance view.
Specify the maximum
3.
number of routes that a
router can receive from a
peer or peer group.

Configuring BGP route dampening

By configuring BGP route dampening, you can suppress unstable routes from being added to the
local routing table or from being advertised to BGP peers. This feature applies to EBGP routes but
not to IBGP routes.
To configure BGP route dampening:
Step
Enter system view.
1.
Enter BGP view or
2.
BGP-VPN instance view.
Configure BGP route
3.
dampening.

Controlling BGP path selection

By configuring BGP path attributes, you can control BGP path selection.

Specifying a preferred value for routes received

This task allows you to modify the preferred value of a route to control BGP path selection.
Among multiple routes that have the same destination/mask and are learned from different peers,
the one with the greatest preferred value is selected as the route to the destination.
To specify a preferred value for routes from a peer or peer group:
Command
system-view
•
Enter BGP view:
bgp as-number
•
Enter BGP-VPN instance
view:
a. bgp as-number
b. ipv4-family
vpn-instance
vpn-instance-name
peer { group-name | ip-address }
route-limit prefix-number
[ { alert-only | reconnect
reconnect-time } |
percentage-value ] *
Command
system-view
•
Enter BGP view:
bgp as-number
•
Enter BGP-VPN instance view:
a. bgp as-number
b. ipv4-family vpn-instance
vpn-instance-name
dampening [ half-life-reachable
half-life-unreachable reuse
suppress ceiling | route-policy
route-policy-name ] *
210
Remarks
N/A
Use either method.
By default, the number of routes
that a router can receive from a
peer or peer group is not limited.
Remarks
N/A
Use either method.
Not configured by default.