Wednesday, November 24, 2010

LISP + GETVPN as alternative for DMPVN+OSPF+GETVPN

Originally LISP was developed to address the issues and concerns raised by the growth of the internet routing table, but LISP turns out to possess appealing features that can be of interest to Service Providers like my friends at InTouch.

At the Cisco NAG2010 conference in San Jose I talked about using LISP as a transport mechanism instead of regular manual GRE tunnels or a DMVPN design. I believe that provisioning and debugging a LISP based virtual private network will be easier and simpler than current approaches.

Some fair warnings are in order here: this setup runs on beta IOS and NXOS images, this design and the configuration syntax are very likely to change a little with every IOS release, for Cisco's LISP implementation is under very active development. The most important aspect of this design is that it's not a multi-tenant architecture. Multi-tenancy will probably be available in a few months, after which I'll post an updated version with more comments on the specifics.

View the slides online at slideshare: LISP+GETVPN or download the PDF from my website: Job_Snijders-InTouch-LISP_GETVPN.pdf.

1 comment:

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