Cisco 2501 - Router - EN Manual do Utilizador descarregar pdf (Página 35)

Router and Switch Administrative Configurations

213

interface Serial0/0/0

description Wan to SF circuit number 6fdda 12345678

no ip address

shutdown

[output cut]

Todd#sh int f0/0

FastEthernet0/0 is up, line protocol is down

Hardware is MV96340 Ethernet, address is 001a.2f55.c9e8 (bia 001a.2f55.c9e8)

Description: Sales VLAN

[output cut]

Todd#sh int s0/0/0

Serial0/0/0 is administratively down, line protocol is down

Hardware is GT96K Serial

Description: Wan to SF circuit number 6fdda12345678

Doing the do Command

Beginning with IOS version 12.3, Cisco has finally added a command to the IOS that allows

you to view the configuration and statistics from within configuration mode. (In the examples

I gave you in the previous section, all show commands were run from privileged mode.)

description: A Helpful Command

Bob, a senior network administrator at Acme Corporation in San Francisco, has over 50 WAN

links to various branches throughout the U.S. and Canada. Whenever an interface goes down,

Bob spends a lot of time trying to figure out the circuit number as well as the phone number

of the provider of the WAN link.

The interface description command would be very helpful to Bob because he can use this

command on his LAN links to discern exactly where every router interface is connected. And

Bob would benefit tremendously by adding circuit numbers to each and every WAN interface,

along with the phone number of the responsible provider.

So by spending the few hours it would take to add this information to each and every router

interface, Bob can save a huge amount of precious time when his WAN links go down—and

you know they will!

47020.book Page 213 Wednesday, January 2, 2008 4:31 PM

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Cisco 2501 - Router - EN Manual do Utilizador Página 35