From: Jay Pal (jay.b.pal@gmail.com)
Date: Mon Mar 16 2009 - 10:13:20 ART
Hi Nitin,
Got it to work. My configuration was correct all the while, its just that i
did not realize that the default optimization timer is 60 min. There is also
a command on the global configuration mode to change the re-optimization
timer.
thanks
Jay
On Mon, Mar 16, 2009 at Nitin Venugopal <nitinsworld@gmail.com> wrote:
> Hi,
>
> Please send me the outpuT of the following debug with R4 connected
>
> debug mpls traffic-engg path lookup
>
> Also since you are using OSPF as the underlying IGP. Hope you have
> configured
> 1. mpls traffic-engg area xx
> 2. mpls traffic-engg router-id x.x.x.x
> Is congiured on R1, R3 and R4 - under the ospf process
>
> Best Regards
> Nitin
>
>
>
>
> On Mon, Mar 16, 2009 at 1:10 PM, Jay Pal <jay.b.pal@gmail.com> wrote:
>
>> Hello Everyone,
>>
>> I am trying to lab up a scenario where I want use explicit path as the
>> first
>> priority to set up the path and a dynamic if the explicit path fails. I am
>> using OSPF as the underlying IGP, as a test I am just using 3 routers. R1
>> and R3 are directly connected and R4 is connected to R1 and R3 (triangle).
>> I
>> am building tunnel between R1 & R3, but my explicit path is through R4.
>>
>> I can see the tunnel built through R4 and when I shut down R4, TE tunnel
>> goes via 'dynamic' path-option directly to R3. However, when I bring up
>> router R4 the tunnel does not fall back to the explicit path-option which
>> has a priority of 1 (dynamic is 2).
>>
>> Below is my configuration for the tunnel. I would imagine that it should
>> go
>> back to my explicit path, unless there is a rule that otimization happens
>> after certain time. Think I need to do more reading on TE.
>>
>> let me know if there are other outputs that I shoudl post.
>>
>> !
>> interface Tunnel0
>> ip unnumbered Loopback0
>> tunnel destination 3.3.3.3
>> tunnel mode mpls traffic-eng
>> tunnel mpls traffic-eng autoroute announce
>> tunnel mpls traffic-eng path-option 1 explicit name r1-r3
>> tunnel mpls traffic-eng path-option 2 dynamic
>>
>> This is what I see even if the explicit path is up and running:
>> path option 2, type dynamic (Basis for Setup, path weight 2)
>> path option 1, type explicit r1-r3
>>
>>
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