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

From: Sadiq Yakasai (sadiqtanko@gmail.com)
Date: Sat Mar 07 2009 - 09:25:41 ARST

Try changing the clock rate to a a higher value then please...say 128000

On Sat, Mar 7, 2009 at 11:21 AM, Xiaobo Zhu <xiaobo@zhu.net> wrote:

> 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
>>>
>>>
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>>
>>
>> --
>> CCIE #19963
>>
>
>
>
> --
> Xiaobo Zhu
> 

-- 
CCIE #19963

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

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