Data Link Connection Identifier. Value that specifies a PVC or SVC in a Frame Relay network.

Automatic Protection Switching. SONET switching mechanism that routes traffic from working lines to protect them in case of a line card failure or fiber cut.

command-line interface

Clock Scheduler Card and Switch Fabric Card

See switchover.

Enhanced High System Availability. Redundancy method wherein the standby RP suspends its initialization midway through the startup process. See also RPR.

Forwarding Information Base. The FIB is conceptually similar to a routing table or information base. It maintains a mirror image of the forwarding information contained in the IP routing table. When r [..]

Fast Software Upgrade. A mechanism to upgrade the Cisco IOS software images on the RPs and line cards without reinitializating the entire system.

High Availability

High Availability