Command Reference Guide

3Com Router 3000 Ethernet Family
Command Reference Guide
Chapter 2 BGP/MPLS VPN Configuration
Commands
3Com Corporation
2-22
Use the undo routing-table limit command to remove the limitation.
It is necessary to enter vpn-instance sub-view before using the routing-table limit
command. Create a vpn-instance routing table in this view and allocate a route
distinguisher (RD) in either of the following formats:
16-bit ASN: a 32-bit user-defined number, e.g. 100:1.
32-bit IP address: a 16-bit user-defined number, e.g. 172.1.1.1:1.
Create a vpn-target extended community for a vpn-instance and specify ingress or
egress interface or both of them for the vpn-target command. These parameters can
be used to configure ingress/egress routing information of the VPN-target extended
community for a router.
Example
# Set the threshold of maximum route count to 1000 in VPN-instance vpn1.
[3Com ] ip vpn-instance vpn1
[3Com -vpn- vpn1] route-distinguisher 100:1
[3Com -vpn- vpn1] vpn-target 100:1 import-extcommunity
[3Com -vpn- vpn1] routing-table limit 1000 simply-alert
2.1.26 sham-link
Syntax
sham-link source-addr destination-addr [ cost cost-value ] [ dead seconds ] [ hello
seconds ] [ md5 keyid key seconds ] [ retransmit seconds ] [ simple password ]
[ trans-delay seconds ]
undo sham-link source-addr destination-addr
View
OSPF area view
Parameter
source-addr: Source address of a sham-link, a loopback interface address with 32-bit
mask
destination-addr: Destination address of a sham-link, a loopback interface address with
32-bit mask
cost-value: Cost at sham link, in the range of 1 to 65535. By default, it is 1.
password: Specifies authentication string in plain text at the interface, 8 characters at
most. It must be consistent with the authentication string of sham link peer.
keyid: Specifies MD5 authentication string at the interface, in range of 1 to 255
characters. It must be consistent with the authentication string of sham link peer.