1. CS 672 1 Summer 2003 Quiz 3 Q1) Briefly describe OSPF, ISIS, BGP T Q2) Briefly describe To forward packets. Next hop, out link Q3) Briefly describe Size, spatial and temporal locality? T A4) Size (FIB is larger in size than route cache) FIB mirrors the FIB (Route cache only contain few routes) Better performance

2. CS 672 2 Summer 2003 Quiz 3 A5) A group of packets that are identically with respect to forwarding decision (e.g., forwarded in the same way and along the same path) is said to form a FEC. A6) Swap, Pop, Push F A7) Briefly describe T A8) The action of removing top label by the penultimate hop LSR for an LSP. Avoids extra look up in the egress LSR.

3. CS 672 3 Summer 2003 Quiz 3 A9) VPI/VCI fields Shim header A10) F