3com S7906E Guía De Referencia

 

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Use the router-id command to specify a router ID for the router.  

Use the undo router-id command to remove a router ID.  

To run IPv6 BGP protocol, a router must have a router ID, an unsigned 32-bit integer and the unique ID 

of the router in the AS.  

A router ID can be configured manually. If not, the system will select a router ID automatically from the 

current interfaces’ IPv4 addresses. The selection sequence is the highest IPv4 address of Loopback 

interfaces’ addresses, then the highest IPv4 address of physical interfaces’ addresses if no Loopback 

interfaces are configured.  

Only when the interface with the router ID is removed or the manually configured router ID is removed, 

will the system select another Router ID. To improve network reliability, it is recommended to configure 

the IPv4 address of a loopback interface as the router ID. 

# Specify the router ID of the router as 10.18.4.221. 

<Sysname> system-view 

[Sysname] bgp 100 

[Sysname-bgp] router-id 10.18.4.221 

synchronization 

undo synchronization 

IPv6 address family view 

2: System level 

None 

Use the synchronization command to enable the synchronization between IPv6 BGP and IGP.  

Use the undo synchronization command to disable the synchronization.  

The feature is disabled by default.  

With this feature enabled and when a non-BGP router is responsible for forwarding packets in an AS, 

IPv6 BGP speakers in the AS cannot advertise routing information to other ASs unless all routers in the 

AS know the latest routing information.