A. EXP bits B. VPI / VCI C. shim header D. SNAP header
A. It performs a label pop operation and an IP lookup. B. It performs a label swap operation and an IP lookup. C. It sends an error message toward the egress router. D. It sends an error message toward the ingress router.
A. egress router B. ingress router C. start of the bypass tunnel D. all routers in the bypass tunnel