Re: Serial0/0 is up, line protocol is down

From: Xiaobo Zhu (xiaobo@zhu.net)
Date: Sat Mar 07 2009 - 09:21:59 ARST

The output is as follows:
R1(config-if)#
*Mar 1 00:24:05.032: %LINEPROTO-5-UPDOWN: Line protocol on Interface
Serial0/0, changed state to down
R1(config-if)#
*Mar 1 00:24:15.032: %LINEPROTO-5-UPDOWN: Line protocol on Interface
Serial0/0, changed state to up
R1(config-if)#
*Mar 1 00:24:35.033: %LINEPROTO-5-UPDOWN: Line protocol on Interface
Serial0/0, changed state to down
R1(config-if)#
*Mar 1 00:24:45.034: %LINEPROTO-5-UPDOWN: Line protocol on Interface
Serial0/0, changed state to up
R1(config-if)#

On Sat, Mar 7, 2009 at 7:16 PM, Sadiq Yakasai <sadiqtanko@gmail.com> wrote:

> Ca you add this to the dce interface and lets see what happens:
>
> dce-terminal-timing-enable
>
> Sadiq
>
> On Sat, Mar 7, 2009 at 11:10 AM, Xiaobo Zhu <xiaobo@zhu.net> wrote:
>
>> Sorry for the wrong subnet mask, but it still can't work proper after I
>> configured it correctly.
>>
>> On Sat, Mar 7, 2009 at 6:27 PM, Xiaobo Zhu <xiaobo@zhu.net> wrote:
>>
>> > R1's s0/0 is connected to R2's s0/0 directly, and configured as follows,
>> > will any one please figure out why the interface status is up but
>> protocol
>> > status is down?
>> >
>> > R1(config-if)#do sh contr s0/0
>> > Interface Serial0/0
>> > Hardware is PowerQUICC MPC860
>> > DTE V.35 RX clock detected.
>> >
>> > R1(config-if)#do sh run int s0/0
>> > Building configuration...
>> > Current configuration : 73 bytes
>> > !
>> > interface Serial0/0
>> > ip address 12.0.0.1 255.0.0.0
>> > no fair-queue
>> > end
>> >
>> > R2(config-if)#do sh contr s0/0
>> > Interface Serial0/0
>> > Hardware is PowerQUICC MPC860
>> > DCE V.35, clock rate 64000
>> > idb at 0x82C0C31C, driver data structure at 0x82C140F0
>> > SCC Registers:
>> >
>> > R2(config-if)#do sh run int s0/0
>> > Building configuration...
>> > Current configuration : 95 bytes
>> > !
>> > interface Serial0/0
>> > ip address 12.0.0.2 255.255.255.0
>> > clock rate 64000
>> > no fair-queue
>> > end
>> > R1#sh ip int b
>> > Interface IP-Address OK? Method Status
>> > Protocol
>> > Ethernet0/0 unassigned YES NVRAM administratively
>> down
>> > down
>> > Serial0/0 12.0.0.1 YES manual up
>> > up
>> > Ethernet0/1 unassigned YES NVRAM administratively
>> down
>> > down
>> >
>> > R2(config-if)#do sh ip int b
>> > Interface IP-Address OK? Method Status
>> > Protocol
>> > Ethernet0/0 unassigned YES NVRAM administratively
>> down
>> > down
>> > Serial0/0 12.0.0.2 YES manual up
>> > down
>> > Serial0/1 unassigned YES NVRAM administratively
>> down
>> > down
>> >
>> > --
>> > Xiaobo Zhu
>> >
>>
>>
>>
>> --
>> Xiaobo Zhu
>>
>>
>> Blogs and organic groups at http://www.ccie.net
>>
>> _______________________________________________________________________
>> Subscription information may be found at:
>> http://www.groupstudy.com/list/CCIELab.html
>>
>>
>>
>>
>>
>>
>>
>>
>
>
> --
> CCIE #19963
> 

-- 
Xiaobo Zhu

Blogs and organic groups at http://www.ccie.net

This archive was generated by hypermail 2.1.4 : Mon Apr 06 2009 - 06:44:04 ART