3com 8807 Reference Guide

C

HAPTER

 40: BGP/MPLS VPN C

ONFIGURATION

 C

OMMANDS

■

The source and destination addresses of a sham link cannot be the same.

■

The same sham link cannot be configured for different OSPF processes.

■

50 sham links can be configured for an OSPF process at most.

# Configure a Sham-link, with its source address 1.1.1.1 and destination address 
2.2.2.2.

[3Com-ospf-100-area-0.0.0.1] sham-link 1.1.1.1 2.2.2.2 cost 100 

VPN-instance sub-address family view

None

Use the summary command to enable BGP to perform auto summary of subnet 
routes.

Use the undo summary command to cancel this summary.

By default, BGP does not perform the auto summary of subnet routes.

After auto summary is enabled, BGP cannot receive the subnet routes imported 
from IGP. Using this feature reduces the amount of routing information.

# Perform auto summary of subnet routes.

[3Com-bgp-af-vpn-instance] summary 

vlan vpn-range slot slot-number enable

undo vlan vpn-range slot slot-number enable

System view

slot-number: Slot number of interface card.

Use the vlan vpn-range command to set the MPLS label range on the interface 
on the card.