Re: Switch Int Shows Up When Router Int Shut

Yep its on both. My routers are 3640s with the nm-2e2w module.

On Thu, May 7, 2009 at 9:37 PM, Joe Astorino <joe_astorino_at_comcast.net>wrote:

> Thanks bryan , is that on your 3550 and 3560s ?
> "He not busy being born is busy dying" -- Dylan
>
> -----Original Message-----
> From: Bryan Bartik <bbartik_at_ipexpert.com>
>
> Date: Thu, 7 May 2009 18:51:30
> To: CCIE Groupstudy<ccielab_at_groupstudy.com>
> Subject: Re: Switch Int Shows Up When Router Int Shut
>
>
> Joe,
>
> My rack has the same behavior. I never noticed it but maybe this is
> normal...never really looked at it...
>
> R4#sho cdp ne
> Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
> S - Switch, H - Host, I - IGMP, r - Repeater
>
> Device ID Local Intrfce Holdtme Capability Platform Port ID
> SW4 Eth 0/1 179 S I WS-C3550-2Fas 0/4
> SW2 Eth 0/0 172 S I WS-C3560-2Fas 0/4
> R4#
>
> Here I shut both ports:
>
> R4(config)#int e0/0
> R4(config-if)#shut
> R4(config-if)#int e0/1
> R4(config-if)#shut
>
> Now I check the status of SW4 and SW2 ports f0/4:
>
> SW2#sho int f0/4 | inc prot
> FastEthernet0/4 is up, line protocol is up (connected)
> SW2#
>
> SW4#sho int f0/4 | inc proto
> FastEthernet0/4 is up, line protocol is up (connected)
> SW4#
>
> The lights are still on both sides, I pull the cable from R4 e0/0 and get
> this:
>
> SW2#
> 00:19:59: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/4,
> changed state to down
> 00:20:00: %LINK-3-UPDOWN: Interface FastEthernet0/4, changed state to down
> SW2#
>
> This is different from the behavior you get when you shut the switch ports,
> then you see the router port go down. Anyways, hopefully it doesn't drive
> you crazy anymore.
>
>
> Bryan Bartik
> CCIE #23707, CCNP
> Sr. Support Engineer - IPexpert, Inc.
> URL: http://www.IPexpert.com
>
>
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-- 
Bryan Bartik
CCIE #23707, CCNP
Sr. Support Engineer - IPexpert, Inc.
URL: http://www.IPexpert.com
Blogs and organic groups at http://www.ccie.net