3Com MSR 30, MSR 50 manual Preference BGP/BGP-VPN instance view, Reflect between-clients BGP view

1006 CHAPTER 72: BGP CONFIGURATION COMMANDS

preference (BGP/BGP-VPN instance view)

Syntax preference { external-preference internal-preference local-preference route-policyroute-policy-name }

undo preference

View BGP view/BGP-VPN instance view

Parameters external-preference: Preference of EBGP route, in the range 1 to 255.

internal-preference: Preference of IBGP route, in the range 1 to 255. An IBGP is a route learned from another peer inside AS.

local-preference: Preference of local route, in the range 1 to 255.

route-policy-name: Routing policy name, a string of 1 to 19 characters. Using the routing policy can set preference for routes passing through it. For the routes filtered out, the default value applies.

Description Use the preference command to configure preferences for external, internal, and local routes.

Use the undo preference command to restore the default.

For external-preference,internal-preference and local-preference, the bigger the preference value is, the lower the preference is, and the default values are 255, 255, 130 respectively.

Examples # In BGP view, configure preferences for EBGP, IBGP and local routes as 20, 20 and 200.

<Sysname> system-view

[Sysname] bgp 100

[Sysname-bgp] preference 20 20 200

#In BGP-VPN instance view, configure preferences for EBGP, IBGP and local routes as 20, 20 and 200 (the VPN has been created).

<Sysname> system-view [Sysname] bgp 100

[Sysname-bgp] ipv4-family vpn-instance vpn1 [Sysname-bgp-vpn1] preference 20 20 200

reflect between-clients (BGP view)

Syntax reflect between-clients

undo reflect between-clients

View BGP view