11-20-2010 10:07 PM - edited 03-06-2019 02:08 PM
Hi
Could please someone advise me on whether the te tunnel metric in the routing table can be controlled using the "ip ospf cost" command? I would like to have the tunnel take a different cost from the best IGP metric. How can this be done? Please let me know.
R262#sh run int tun24
Building configuration...
Current configuration : 279 bytes
!
interface Tunnel24
ip unnumbered Loopback0
ip ospf cost 1000
tunnel mode mpls traffic-eng
tunnel destination 10.0.0.7
tunnel mpls traffic-eng autoroute announce
tunnel mpls traffic-eng forwarding-adjacency
tunnel mpls traffic-eng path-option 1 explicit name path24
end
R262#
R262#sh ip route
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP
+ - replicated route, % - next hop override
Gateway of last resort is not set
10.0.0.0/32 is subnetted, 6 subnets
O 10.0.0.1 [110/11] via 180.0.0.1, 11:21:17, Ethernet0/0
O 10.0.0.3 [110/11] via 180.1.0.1, 11:20:50, Ethernet0/2
C 10.0.0.5 is directly connected, Loopback0
O 10.0.0.7 [110/21] via 10.0.0.7, 10:57:32, Tunnel24
O 10.0.0.9 [110/31] via 10.0.0.7, 10:57:32, Tunnel24
O 10.0.0.11 [110/31] via 10.0.0.7, 10:57:32, Tunnel24
180.0.0.0/16 is variably subnetted, 2 subnets, 2 masks
C 180.0.0.0/16 is directly connected, Ethernet0/0
L 180.0.0.2/32 is directly connected, Ethernet0/0
180.1.0.0/16 is variably subnetted, 2 subnets, 2 masks
C 180.1.0.0/16 is directly connected, Ethernet0/2
L 180.1.0.2/32 is directly connected, Ethernet0/2
O 180.2.0.0/16 [110/20] via 180.1.0.1, 11:20:20, Ethernet0/2
180.3.0.0/16 is variably subnetted, 2 subnets, 2 masks
C 180.3.0.0/16 is directly connected, Ethernet0/1
L 180.3.0.1/32 is directly connected, Ethernet0/1
O 180.4.0.0/16 [110/30] via 10.0.0.7, 10:57:32, Tunnel24
O 180.5.0.0/16 [110/30] via 10.0.0.7, 10:57:32, Tunnel24
Solved! Go to Solution.
11-21-2010 12:42 AM
Hello,
You can change tunnel metric via. command
tunnel mpls traffic-eng autoroute metric
for tunnel tail end the metric will be shown as the value you specified and for nodes behind tunnel tail the metric will be sum
of value specified + IGP metric from tail to end node
but if you change above command to
tunnel mpls traffic-eng autoroute metric absolute
the metric for nodes behind tunnel tail will be same as above supplied value
There are also other oprions to affect tunnel metric like
tunnel mpls traffic-eng autoroute metric relative
It is tunnel metric relative to the IGP cost that the tunnel would normally have.
Hopw this helps
Regards
Mahesh
11-21-2010 12:42 AM
Hello,
You can change tunnel metric via. command
tunnel mpls traffic-eng autoroute metric
for tunnel tail end the metric will be shown as the value you specified and for nodes behind tunnel tail the metric will be sum
of value specified + IGP metric from tail to end node
but if you change above command to
tunnel mpls traffic-eng autoroute metric absolute
the metric for nodes behind tunnel tail will be same as above supplied value
There are also other oprions to affect tunnel metric like
tunnel mpls traffic-eng autoroute metric relative
It is tunnel metric relative to the IGP cost that the tunnel would normally have.
Hopw this helps
Regards
Mahesh
11-21-2010 01:29 AM
Please take note that the ospf cost is applied to the outbound interface.
If you want to increase the metric on this tunnel interface, you must increase the cost on the opposite side.
regards,
Leo
11-21-2010 02:19 AM
Thanks Mahesh and Leo..
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