3com S7906E 安装指导

 

1-9 

To do… 

Use the command… 

Remarks 

Enable the comparison of the 
MED for routes from different 
ASs 

Optional 

Not enabled by default 

Enable the comparison of the 
MED for routes from each AS 

Optional 

Disabled by default 

Enable the comparison of the 
MED for routes from 
confederation peers 

Optional 

Disabled by default 

 

Configuring the NEXT_HOP Attribute 

You can use the peer next-hop-local command to specify the local router as the next hop of routes 

sent to an IPv6 multicast iBGP peer/peer group. If load balancing is configured, the router specifies itself 

as the next hop of routes sent to the IPv6 multicast iBGP peer/peer group regardless of whether the 

peer next-hop-local command is configured. 

In a “third party next hop" network, that is, the local router has two IPv6 multicast eBGP peers in a 

broadcast network, the router does not specify itself as the next hop of routes sent to the EBGP peers 

by default. 

Follow these steps to specify the router as the next hop of routes sent to a peer/peer group: 

To do… 

Use the command… 

Remarks 

Enter system view 

— 

Enter BGP view 

bgp as-number 

— 

Enter IPv6 MBGP address 
family view 

ipv6-family multicast 

— 

Configure the router as the next 
hop of routes sent to the 
peer/peer group 

peer { ipv6-group-name | 
ipv6-address } next-hop-local

Optional 

By default, IPv6 MBGP 
specifies the local router as the 
next hop for routes sent to an 
eBGP peer/peer group, but not 
for routes sent to an iBGP 
peer/peer group. 

 

Configuring the AS_PATH Attribute 

Follow these steps to configure the AS_PATH attribute: 

To do… 

Use the command… 

Remarks 

Enter system view 

— 

Enter BGP view 

bgp as-number 

— 

Enter IPv6 MBGP address 
family view 

ipv6-family multicast 

—