Cisco Nexus 7000 Series Configuration Manual page 515

S e n d d o c u m e n t c o m m e n t s t o n e x u s 7 k - d o c f e e d b a c k @ c i s c o . c o m .
E
External Border Gateway Protocol (BGP). Operates between external systems.
eBGP
Enhanced Interior Gateway Protocol. A Cisco routing protocol that uses the Diffusing Update
EIGRP
Algorithm to provide fast convergence and minimized bandwidth utilization.
F
The lowest calculated distance to a network destination in EIGRP. The feasibility distance is the sum
feasible distance
of the advertised distance from a neighbor plus the cost of the link to that neighbor.
Neighbors in EIGRP that advertise a shorter distance to the destination than the current feasibility
feasible successor
distance.
Fowarding Information Base. The forwarding table on each module that is used to make the Layer 3
FIB
forwarding decisions per packet.
G
A switch or router that forwards layer 3 traffic from a LAN to the rest of the network.
gateway
Gateway Load Balancing Protocol. A Cisco proprietary protocol that provides high availability features
GLBP
to end hosts.
A feature that allows a router to remain in the data forwarding path while a routing protocol reboots.
graceful restart
h
H
The configurable time between each Hello packet sent by an OSPF or EIGRP router.
hello interval
A special message used by OSPF or IS-IS to discover neighbors. Also acts as a keep alive messages
hello packet
between established neighbors.
The ability of a system or component to limit or avoid network disruption when a component fails.
high availability
In BGP - Maximum time limit allowed in BGP between UPDATE or KEEPALIVE messages. If this
hold time
time is exceeded, the TCP connection between the BGP peers is closed.
In EIGRP, the maximum time allowed between EIGRP Hello messages. If this time is exceeded, the
neighbor is declared unreachable.
The number of routers that can be traversed in a route. Used by RIP.
hop count
HSRP
OL-20002-02
Cisco Nexus 7000 Series NX-OS Unicast Routing Configuration Guide, Release 4.x
Glossary
GL-3