A
- ABR. area border router.
A router that connects to areas in an OSPF network.
- access layer.
The area or layer of the network that is responsible for controlling the traffic admitted to the network and for providing end user attachments to the network.
- active.
An EIGRP route state that indicates the router is actively searching for alternative paths to the destination in question by querying its neighbors.
- address resolution protocol.
- See [ARP. Address Resolution Protocol. A method for binding network (Internet protocol) addresses to a physical layer address; it is described in IETF RFCs.]
- administrative distance.
A system of weights or distances assigned to routing protocols by Cisco routers; it is used for determining which path to take to ...
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