Cisco Nexus 7000 Series - Page 518

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Glossary
GL-6
Cisco Nexus 7000 Series NX-OS Unicast Routing Configuration Guide, Release 4.x
OL-20002-02
R
redistribution
One routing protocol accepts route information from another routing protocol and advertises it in the
local autonomous system.
Reliable Transport
Protocol
Responsible for guaranteed, ordered delivery of EIGRP packets to all neighbors.
reliability
The dependability (usually described in terms of the bit-error rate) of each network link.
RIB
Routing Information Base. Maintains the routing table with directly connected routes, static routes, and
routes learned from dynamic unicast routing protocols.
Route Policy
Manager
The process that controls route maps and policy-based routing.
routing information
base
See RIB.
route map
A construct used to map a route or packet based on match criteria and optionally alter the route or
packet based on set criteria. Used in route redistribution and policy-based routing.
route
summarization
A process that replaces a series of related, specific routes in a route table with a more generic route.
router ID
A unique identifier used by routing protocols. If not manually configured, the routing protocol selects
the highest IP address configured on the system.
S
SPF algorithm
Shortest Path First algorithm. Dijkstra’s algorithm used by OSPF to determine the shortest route
through a network to a particular destination.
split horizon
Routes learned from an interface are not advertised back along the interface they were learned on,
preventing the router from seeing its own route updates.
split horizon with
poison reverse
Routes learned from an interface are set as unreachable and advertised back along the interface they
were learned on, preventing the router from seeing its own route updates.
static route
A manually configured route.
stub area
An OSPF area that does not allow AS External (type 5) LSAs.
stub router
A router that has no direct connection to the main network and which routes to that network using a
known remote router.
SVI
Switched Virtual Interface.