07-06-2015 04:44 AM
Hi guys,
In real life implementation what is used mostly to backup the TE tunnels, fast re-reroute or autotunnel ?
Thanks
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07-06-2015 05:34 AM
It totally depends on the design requirements. but most of the time we see implementation of TE with FRR. With Auto-Tunnels, the only challenge is, we need to ensure the subnets/IP Addresses to which TE Tunnels will be formed and B/W requirements as multiple tunnels could go over the same link. .
Hope that answers
Vinit
07-06-2015 05:34 AM
It totally depends on the design requirements. but most of the time we see implementation of TE with FRR. With Auto-Tunnels, the only challenge is, we need to ensure the subnets/IP Addresses to which TE Tunnels will be formed and B/W requirements as multiple tunnels could go over the same link. .
Hope that answers
Vinit
07-06-2015 06:03 AM
Thank you Vinit,
For the last part of your answer what do you think could be a possible solution, maybe SRLG or flag attributes ?
07-06-2015 06:13 AM
For the last part, there are multiple things that can be done. one of them could be planning on the allocation through RSVP and carving out sub-pools. You can also look into Auto-B/W feature in TE.
With statically configured Tunnel, we already know how much b/w can be required by the TE Tunnels but again we carve out b/w out of the interface accordingly.
07-06-2015 06:24 AM
Thanks for explanation
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