06-25-2010 01:54 PM
Hi All
Can someone assist me in the configuration, with the configuration of Two MPLS TE tunnels. This is how the network should work.
Some details of the topology can be found below.
PE - 1 loopback = 204.134.83.3
P1 = loopback = 204.134.85.2
P2 = loopback = 204.134.83.15
P3 = loopback = 204.134.84.49
PE2 = loopback = 204.134.83.11
Now what i need to do is configure two MPLE TE tunnels the primary tunnel should transport traffic Path 1 = PE-1, P1, P2, PE-2
The second Tunnel should transport traffic via Path 2 PE-1,P1,P3,P2, PE2.
Path will always act as the primary, path two will be the secondary, I want Tunnel 2 two also act as a backup if the link between P1 and P2 were to ever go down. Would be nice to have a FRR for tunnel two.
Help With this would be much appreciated. Please find topology attached. Please find current configurations attached, please ignore the GRE IPSEC tunnels in the configurations these were put in place because i wanted to encrypt traffic between all the nodes in the provider network.
For now all i need is assistance in building two tunnels between the provider routers. Topology attached.
PE-1 = Headend
PE-2 = Tail end router.
Thanks regards
Carl Williams
06-25-2010 01:55 PM
06-27-2010 05:20 AM
06-28-2010 07:31 AM
Hi
In below link you can see the sample config of MPLS TE & The MPLS TE concept.
http://fengnet.com/book/MPLS%20Configuration%20on%20Cisco%20IOS%20Software/ch09lev1sec4.html
Here is the below config that you can refer :-
interface Tunnel0
ip unnumbered Loopback0
tunnel destination x.x.x.x
tunnel mode mpls traffic-eng
tunnel mpls traffic-eng autoroute announce
tunnel mpls traffic-eng priority 1 1
tunnel mpls traffic-eng path-option 1 dynamic ------ Here it will use CSPF Protocol to find path Dyanamic.
tunnel MPLS traffic-eng bandwidth 100
!
interface Tunnel1
ip unnumbered Loopback0
tunnel destination x.x.x.x
tunnel mode mpls traffic-eng
tunnel mpls traffic-eng autoroute announce
tunnel mpls traffic-eng priority 2 2
tunnel mpls traffic-eng path-option 1 explicit name LSP1 ------ Here You can mention the path that you want.
tunnel MPLS traffic-end bandwidth 100
ip explicit-path name LSP1 enable
next-address x.x.x.x -- 1st Router Hops
next-address x.x.x.x -- 2nd Router Hops
next-address x.x.x.x -- 3rd Router Hops
06-28-2010 08:34 AM
I've configured my network now but my tunnels are show as up down now.
PE-1#show mpls traffic-eng tunnels summary
Signalling Summary:
LSP Tunnels Process: running
RSVP Process: running
Forwarding: enabled
Head: 4 interfaces, 0 active signalling attempts, 0 established
0 activations, 0 deactivations
Midpoints: 0, Tails: 0
Periodic reoptimization: every 3600 seconds, next in 703 seconds
Periodic auto-bw collection: disabled
PE-1#show mpls traffic-eng tunnels brief
Signalling Summary:
LSP Tunnels Process: running
RSVP Process: running
Forwarding: enabled
Periodic reoptimization: every 3600 seconds, next in 747 seconds
Periodic auto-bw collection: disabled
TUNNEL NAME DESTINATION UP IF DOWN IF STATE/PROT
PE-1_t0 204.134.83.1 - unknown up/down
PE-1_t1 204.134.83.1 - unknown up/down
PE-1_t2 204.134.83.8 - unknown up/down
PE-1_t3 204.134.83.8 - unknown up/down
Displayed 4 (of 4) heads, 0 (of 0) midpoints, 0 (of 0) tails
06-28-2010 09:49 AM
Hello Carl,
until you don't add the command
ip rsvp bandwidth xxx under each physical interface
and you don't add the MPLS TE extensions to the OSPF IGP you cannot see your MPLS TE tunnels coming up
ip rsvp bandwidth
+
router ospf 101
mpls traffic-eng router-id Loopback0
mpls traffic-eng area 0
note: MPLS TE can work on a single OSPF area unless other tricks are used
Hope to help
Giuseppe
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