234
Step Command
Remarks
5.
Configure a sham link.
sham-link
source-ip-address
destination-ip-address
[
cost
cost-value
|
dead
dead-interval
|
hello
hello-interval
|
{ {
hmac-md5
|
md5
}
key-id
{
cipher
|
plain
}
string
|
simple
{
cipher
|
plain
}
string
} |
retransmit
retrans-interval
|
trans-delay
delay
|
ttl-security
hops
hop-count
] *
By default, no sham links exist.
Specifying the VPN label processing mode on the
egress PE
An egress PE can process VPN labels in either POPGO or POP mode:
•
POPGO
forwarding
—Pops the label and forwards the packet out of the egress interface
corresponding to the label.
•
POP
forwarding
—Pops the label and forwards the packet through the FIB table.
To specify the VPN label processing mode on an egress PE:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter BGP instance view.
bgp
as-number
[
instance
instance-name
]
N/A
3.
Specify the VPN label
processing mode as POPGO
forwarding.
vpn popgo
The default is POP forwarding.
Configuring BGP AS number substitution and
SoO attribute
When CEs at different sites have the same AS number, configure the BGP AS number substitution
feature to avoid route loss.
When a PE uses different interfaces to connect different CEs in a site, the BGP AS number
substitution feature introduces a routing loop. To remove the routing loop, configure the SoO attribute
on the PE.
For more information about the BGP AS number substitution feature and the SoO attribute, see
"
BGP AS number substitution and SoO attribute
To configure BGP AS number substitution and SoO attribute:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter BGP instance view.
bgp
as-number
[
instance
instance-name
]
N/A
