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- August 10, 2009: Integrating the Nexus 1000v VSM with vCenter
- August 4, 2009: Something New...
- August 4, 2009: Understanding the Nexus 1000v
- July 28, 2009: Book Review - Implementing Cisco Unified Communications Manager Part 1
- June 24, 2009: Nexus 7000 Field Notice
- May 5, 2009: CCIE R&S Exam v4.0 Changes
- April 30, 2009: Nexus 7000 Virtual Portchannel Part 3 (final)
- April 28, 2009: Q&A - VSS and Jumbo Frames
- March 30, 2009: Nexus 7000 Virtual Portchannel Part 2
- March 16, 2009: Nexus 7000 Virtual Portchannel Part 1
Archive for January 29, 2009
Routing Challenge
January 29, 2009 by ted.
I was dealing with an issue the other day at work that was kind of challenging and made my brain hurt…
Scenario
Note the diagram below.
What we have is a simplified diagram of 4 routers. Rtr A and B are currently connected to our global ATT MPLS carrier and receiving routes via BGP from our other corporate BGP sites (expected). Rtr A and B are also advertising their own networks back out providing reachability to subnets behind Rtr A and B as well as C and D. End-to-end connectivity is easily done with the bidirectional exchange of route information — that is not the challenge here.
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