Re: Ser0 missing from show ip int brief?

jason.aarons · ‎07-17-2004

Can I configure frame-relay on the 1 Channelized T1/PRI port ? The circuit isn't a PRI but CAS. I am thinking I ordered the wrong hardware to put a serial0 in for the frame relay.

I don't see in show ip int brief a serial interface....how come? It has been a long time since I setup a frame interface, I am thinking I am missing something simple...

router-c3745-bgp#show ver

Cisco Internetwork Operating System Software

IOS (tm) 3700 Software (C3745-IS-M), Version 12.3(5b), RELEASE SOFTWARE (fc1)

Compiled Thu 15-Jan-04 23:39 by kellythw

Image text-base: 0x60008AF4, data-base: 0x61B62000

ROM: System Bootstrap, Version 12.2(8r)T2, RELEASE SOFTWARE (fc1)

router-c3745-bgp uptime is 6 days, 23 hours, 38 minutes

System returned to ROM by power-on

System image file is "flash:c3745-is-mz.123-5b.bin"

cisco 3745 (R7000) processor (revision 2.0) with 249856K/12288K bytes of memory.

Processor board ID JMX0814L0E3

R7000 CPU at 350MHz, Implementation 39, Rev 3.3, 256KB L2, 2048KB L3 Cache

Bridging software.

X.25 software, Version 3.0.0.

Primary Rate ISDN software, Version 1.1.

2 FastEthernet/IEEE 802.3 interface(s)

1 Channelized T1/PRI port(s)

DRAM configuration is 64 bits wide with parity disabled.

151K bytes of non-volatile configuration memory.

62592K bytes of ATA System CompactFlash (Read/Write)

Configuration register is 0x2102

router-c3745-bgp#show run

Building configuration...

version 12.3

!

controller T1 0/0

framing esf

crc-threshold 320

linecode b8zs

!

interface FastEthernet0/0

!

interface FastEthernet0/1

!

ip route 0.0.0.0 0.0.0.0 FastEthernet0/0

end

bay-c3745-bgp#show ip int brief

Interface IP-Address OK? Method Status Prot

ocol

FastEthernet0/0 x.x.x.x YES manual up up

FastEthernet0/1 x.x.x.x YES manual up up

bay-c3745-bgp#

mark-obrien · ‎07-17-2004

Jason,

The T1/PRI controller does not show up as a serial interface because the serial interface must be configured on it with the channel-group command:

controller t1 1/0

channel-group 0 timeslots 1-24

!

This command makes all DS0s in the T1 part of serial interface 1/0/0, assuming the controller is in slot 1. After the controller is configured like this, you can set up frame relay on Serial 1/0/0.

Good luck,

Mark

mark-obrien · ‎07-17-2004

Correction to the above - I see that the controller is in slot 0, and int the name of the newly created serial interface, there is is colon between the position of the controller and the interface number. The serial interface you create should be Serial0/0:0.

Mark