Cisco 2650 - 2650 Router Bedienungsanleitung PDF herunterladen (Seite 10)

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• area OSPF area parameters

• auto-cost Calculate OSPF interface cost according to

bandwidth

• capability Enable specific OSPF feature

• compatible OSPF compatibility list

• default Set a command to its defaults

• default-information Control distribution of default information

• default-metric Set metric of redistributed routes

• discard-route Enable or disable discard-route installation

• distance Define an administrative distance

• distribute-list Filter networks in routing updates

• domain-id OSPF domain-id

• domain-tag OSPF domain-tag

• exit Exit from routing protocol configuration mode

• help Description of the interactive help system

• ignore Do not complain about specific event

• log-adjacency-changes Log changes in adjacency state

• maximum-paths Forward packets over multiple paths

• neighbor Specify a neighbor router

• network Enable routing on an IP network

• no Negate a command or set its defaults

• passive-interface Suppress routing updates on an interface

• redistribute Redistribute information from another routing

protocol

• router-id router-id for this OSPF process

• summary-address Configure IP address summaries

• timers Adjust routing timers

• traffic-share How to compute traffic share over alternate

paths

The network-number identifies the network using OSPF. The mask tells which bits to

use from the network-number, and the area-id is used for determining areas in an OSPF

configuration. For example:

Router(config-router)#network 10.12.0.4 255.255.255.252 area 0

Area 0 is so called backbone network.

2.2.2 Router ID

Router ID is the tie-breaker for OSPF path selection. The path selection process uses a

variety of metrics to select a route. If all other metrics (accessibility, administrative

weight, local preference, etc.) are equal, OSPF determines the router ID using the

following priority:

1. Use the address configured by the ospf router-id command

2. Use the address of the loopback 0 interface

3. Use the highest IP address of any interface

4. If no interface exists, set the router-ID to 0.0.0.0

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