How to verify triple layer label stack in Inter-AS option C LSP

Hi,

I've been struggling to verify label stack in inter-as option c.

VPN label can be verified with "sh ip bgp vpnv4 all labels" at PE.
outer label can be verified on P routers.

How to verify IPV4 label (middle label) or the whole stack on P routers?

Please refer below for OptionC explanation for how LSP being constructed.

http://www.juniper.net/techpubs/en_US/junose10.0/information-products/topic-collections/swconfig-bgp-mpls/inter-as-option-c.html
http://www.huawei.com/products/datacomm/catalog.do?id=1495

Is there anyway to verify label stack on say P routers and see all 3 labels
that has been assigned all the way ?

Thanks.

Jeremy

Blogs and organic groups at http://www.ccie.net
Received on Mon May 21 2012 - 11:14:45 ART