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can i use summary in mpls!

i know loopback address can't be summary.

i had more than 130 routers,there are more in the future,these routers are p/pe. so i must config to divide these pe routers in multiple areas.

for mpls vpn(te in the future)can I summary interface ip address (such as device link between device), not loopback ip address.

thank you!

1 REPLY
Cisco Employee

Re: can i use summary in mpls!

Hi,

Yes you can summarize any network but, as long as you do not break the LSPs. In most practical cases this means Loopbacks should never, the rest can be summarized.

Actually with conditional label distribution you could restric LDP to only announce labels for the Loopback networks required. Thus from an MPLS point of view "the rest" of IP networks is irrelevant and could be summarized or even be suppressed.

Hope this helps! Please rate all posts.

Regards, Martin

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