H3C SR8800 10G Mpls Configuration Manual page 85

Step
1. Enter system view.
Create a static route for forwarding
2.
traffic along an MPLS TE tunnel.
NOTE:
interface-type
The
•
value must be set.
• For more information about the static routing configuration command, see
Command Reference
Forwarding traffic along MPLS TE tunnels through automatic route advertisement
NOTE:
• Automatic route advertisement is supported when the IGP is OSPF or ISIS.
To use automatic route advertisement, you must specify the destination address of the TE tunnel as the
•
LSR ID of the peer and advertise the tunnel interface address to IGPs, such as OSPF and ISIS.
Before configuring automatic route advertisement, enable OSPF or ISIS on the MPLS TE tunnel interface.
Two approaches, IGP shortcut and forwarding adjacency, are available to automatic route
advertisement to advertise MPLS TE tunnel interface routes to IGPs, allowing traffic to be routed down
MPLS TE tunnels.
You may assign a metric, either absolute or relative, to TE tunnels for the purpose of path calculation in
either approach. If it is absolute, the metric is directly used for path calculation. If it is relative, the cost of
the corresponding IGP path must be added to the metric before it can be used for path calculation.
Configure IGP shortcut
1.
To configure IGP shortcut:
Step
1. Enter system view.
2. Enter MPLS TE tunnel interface
view.
3. Configure the IGP to take the
MPLS TE tunnels in up state
into account when performing
enhanced SPF calculation.
argument in the ip route-static command must be tunnel. In addition, the preference
.
Command
system-view
interface tunnel tunnel-number
mpls te igp shortcut [ isis | ospf ]
Command
system-view
ip route-static dest-address { mask | mask-length }
{ next-hop-address [ track track-entry-number ] | interface-type
interface-number next-hop-address [ bfd { control-packet |
echo-packet } ] | vpn-instance d-vpn-instance-name
next-hop-address [ track track-entry-number ] } [ preference
preference-value ] [ tag tag-value ] [ description
description-text ]
74
Layer 3—IP Routing
Remarks
N/A
N/A
MPLS TE tunnels are not considered
in the enhanced SPF calculation of
IGP.
If no IGP type is specified, the
configuration applies to both OSPF
and ISIS by default.