[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [K] [L] [M] [N] [O] [P] [R] [S] [T] [U] [V] [W] [X] [Z] backbone:Level 2 Level 2 backbone backbone:selection criteria selecting:backbone background method migrating from EIGRP to IS-IS background timers remaining lifetime timer LSP refresh interval timer BCD (binary coded decimal) format NSAP address fields Bellman-Ford algorithm versus SPF algorithm best effort BGP coexistence with IS-IS BGP:coexistence with IS-IS black-holing packets:black-holing BGP:synchronization synchronization broadcast multicast link configuration configuring:broadcast multiaccess links 2nd BSI (British Standards Institute) IOTA-based NSAP addresses 2nd 3rd |