3com S7906E Guía De Referencia
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preference (BGP/BGP-VPN instance view)
Syntax
preference { external-preference internal-preference local-preference | route-policy
route-policy-name }
undo preference
View
BGP view/BGP-VPN instance view
Default Level
2: System level
Parameters
external-preference: Preference of EBGP routes, in the range 1 to 255.
internal-preference: Preference of IBGP routes, in the range 1 to 255.
local-preference: Preference of local routes, 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
a preference for routes matching it. The default value applies to routes not matching the routing policy.
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 greater 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