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Router-mode commands, Chapter 24, Chapter – Brocade Mobility RFS Controller CLI Reference Guide (Supporting software release 5.5.0.0 and later) User Manual

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Brocade Mobility RFS Controller CLI Reference Guide

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Chapter

24

ROUTER-MODE COMMANDS

This chapter summarizes Open Shortest Path First (OSPF) router mode commands in the CLI
command structure. All router-mode commands are available on both device and profile modes.

OSPF is an interior gateway protocol (IGP) used within large autonomous systems to distribute
routing information. OSPF routes IP packets within a single routing domain (autonomous system),
like an enterprise LAN. OSPF gathers link state information from neighbor routers and constructs a
network topology. The topology determines the routing table presented to the Internet Layer, which
makes routing decisions based solely on the destination IP address found in IP packets.

OSPF detects changes in the topology, like a link failure, and plots a new loop-free routing
structure. It computes the shortest path for each route using a shortest path first algorithm. Link
state data is maintained on each router and is periodically updated on all OSPF member routers.
This enables routers to synchronize routing tables.

OSPF uses a route table managed by the link cost (external metrics) defined for each routing
interface. The cost could be the distance of a router (round-trip time), link throughput or link
availability.

Use the (config) instance to configure router commands. To navigate to the (config-router-mode)
instance, use the following command:

(config-profile-)#router ospf

(config-profile -router-ospf)#

rfs7000-37FABE(config-profile-default-rfs7000)#router ospf

rfs7000-37FABE(config-profile default-rfs7000-router-ospf)#

rfs7000-37FABE(config-profile default-rfs7000-router-ospf)#?

Router OSPF Mode commands:

area OSPF area

auto-cost OSPF auto-cost

default-information Distribution of default information

ip Internet Protocol (IP)

network OSPF network

no Negate a command or set its defaults

ospf OSPF

passive Make OSPF Interface as passive

redistribute Route types redistributed by OSPF

route-limit Limit for number of routes handled OSPF process

router-id Router ID

vrrp-state-check Publish interface via OSPF only if the interface VRRP

state is not BACKUP

clrscr Clears the display screen

commit Commit all changes made in this session

do Run commands from Exec mode

end End current mode and change to EXEC mode

exit End current mode and down to previous mode

help Description of the interactive help system

revert Revert changes