HP MSR2000/3000/4000 Router Series Layer 3 - IP Routing Command Reference

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# In BGP-VPN instance view, configure both the keepalive interval and holdtime for peer group test as 0
seconds, indicating the session will never time out.
<Sysname> system-view
[Sysname] bgp 100
[Sysname-bgp] ip vpn-instance vpn1
[Sysname-bgp-vpn1] peer test timer keepalive 0 hold 0
Related commands
• display bgp peer ipv4 unicast
• display bgp peer ipv6 unicast
• timer
preference
Use preference to configure preferences for BGP routes.
Use undo preference to restore the default.
Syntax
preference { external-preference internal-preference local-preference | route-policy route-policy-name }
undo preference
Default
The preferences of external, internal, and local BGP routes are 255, 255, and 130.
Views
BGP IPv4 unicast address family view, BGP-VPN IPv4 unicast address family view, BGP IPv6 unicast
address family view, BGP-VPN IPv6 unicast address family view
Predefined user roles
network-admin
Parameters
external-preference: Specifies a preference for EBGP routes, in the range of 1 to 255.
internal-preference: Specifies a preference for IBGP routes, in the range of 1 to 255.
local-preference: Specifies a preference for local routes, in the range of 1 to 255.
route-policy route-policy-name: Specifies a routing policy by its name, a case-sensitive string of 1 to 63
characters, to set the route preference for matching routes. Routes not matching the routing policy use the
default preference.
Usage guidelines
Different routing protocols might find different routes to the same destination. However, not all of those
routes are optimal. For route selection, routing protocols, direct routes, and static routes are assigned
different preferences. The route with the highest preference is preferred.
Configuring the preferences for BGP routes changes the possibility for the routes to become the optimal
route.
To reference a routing policy to set the preference, you must configure the preference with the apply
preference command in the routing policy in advance. Otherwise, all matching routes use the default
preference.