So a buddy of mine and I are disputing the actual layer OSPF runs at. He states OSPF is purely layer 3. I say OSPF is layer 4. Since IP is required for OSPF to work, the OSPF is encapsulated in IP. To me, if you encapsulate anything in a L3 proto...

OK, so I have an interesting situation. I have a architecture that has 4 6509s in it and they're all interconnected in a cross hatch / direct link manner, so I have complete redundancy. The top (we'll call the Core) pair have an FWSM in them. Abov...