3com S7906E Guide De Référence

 

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preference { external-preference internal-preference local-preference | route-policy 

route-policy-name } 

BGP view/BGP-VPN instance view  

2: System level 

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.  

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.  

# 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