Specifications

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GL-1
Cisco Nexus 3000 Series NX-OS Unicast Routing Configuration Guide, Release 5.0(3)U2(2)
OL-25782-02
GLOSSARY
v
A
ABR
See area border router.
address family
A specific type of network addressing supported by a routing protocol. Examples include IPv4 unicast
and IPv4 multicast.
adjacency
Two OSPF routers that have compatible configurations and have synchronized their link-state
databases.
administrative
distance
A rating of the trustworthiness of a routing information source. In general, the higher the value, the
lower the trust rating.
area
A logical division of routers and links within an OSPF domain that creates separate subdomains. LSA
flooding is contained within an area.
area border router
A router that connects one OSPF area to another OSPF area.
ARP
Address resolution protocol. ARP discovers the MAC address for a known IPv4 address.
AS
See autonomous system.
ASBR
See autonomous system border router.
attributes
Properties of a route that are sent in BGP UPDATE messages. These attributes include the path to the
advertised destination as well as configurable options that modify the best path selection process.
autonomous
system
A network controlled by a single technical administration entity.
autonomous
system border
router
A router that connect a an OSPF autonomous system to an external autonomous system.
AVF
Active virtual forwarder. A gateway within a GLBP group elected to forward traffic for a specified
virtual MAC address.
AVG
Active virtual gateway. One virtual gateway within a GLBP group is elected as the active virtual
gateway and is responsible for the operation of the protocol.
B
backup designated
router
See BDR.