Re: CDP

From: Ram Shummoogum <rshummoo_at_ca.ibm.com>
Date: Fri, 17 Apr 2009 09:23:12 -0400

Here u go

SWLAB001#sh cdp nei
Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
                  S - Switch, H - Host, I - IGMP, r - Repeater, P - Phone

Device ID Local Intrfce Holdtme Capability Platform Port
ID

2960 Fas 8/1 253 S I WS-C2960-2Fas
0/24

the holdtime is configured to 255 on the 2960

RAM

Darby Weaver <ccie.weaver_at_gmail.com>
Sent by: nobody_at_groupstudy.com
04/16/2009 10:30 PM
Please respond to
Darby Weaver <ccie.weaver_at_gmail.com>

To
Ryan West <rwest_at_zyedge.com>
cc
Tharak Abraham <tharakabraham_at_gmail.com>, Cisco Fanatic
<ebay_products_at_hotmail.com>, "ccie.paul_at_gmail.com" <ccie.paul_at_gmail.com>,
"ccielab_at_groupstudy.com" <ccielab_at_groupstudy.com>
Subject
Re: CDP

Has anyone put in one a switch or router and just labbed it up?

On Thu, Apr 16, 2009 at 4:09 PM, Ryan West <rwest_at_zyedge.com> wrote:

> Tharak,
>
> Everything I have found still point to 4 minutes and 15 seconds as the
> maximum. If anyone has different information, please let me know.
>
> -ryan
>
> From: Tharak Abraham [mailto:tharakabraham_at_gmail.com]
> Sent: Thursday, April 16, 2009 4:02 PM
> To: Ryan West
> Cc: Cisco Fanatic; ccie.paul_at_gmail.com; ccielab_at_groupstudy.com
> Subject: Re: CDP
>
> Ryan / Paul ,
>
> Any luck with this one?
> How to configure CDP hold time as 5 mins?
>
> cant afford to miss on easy ones...
>
> Tharak.
>
> On Tue, Apr 14, 2009 at 7:41 PM, Ryan West
> <rwest_at_zyedge.com<mailto:rwest_at_zyedge.com>> wrote:
>
> Looks like that's correct. Although, I don't know how you could get to
5
> mins, it seems the max is 255. I just set a cdp hold time of 255 on
SW1,
> SW2
> adjusts its holdtime to that value. SW1 does not adjust its holdtime
> towards
> SW2.
>
>
>
> Rack1SW2#show cdp nei | i Holdtme|0/15
>
> Device ID Local Intrfce Holdtme Capability Platform Port
ID
>
> Rack1SW1 Fas 0/15 215 S I WS-C3560- Fas
> 0/15
>
>
>
> Rack1SW1#show cdp nei | i Holdtme|0/15
>
> Device ID Local Intrfce Holdtme Capability Platform Port
ID
>
> Rack1SW2 Fas 0/15 155 S I WS-C3560- Fas
> 0/15
>
>
>
> Rack1SW1(config)#cdp holdtime ?
>
> <10-255> Length of time (in sec) that receiver must keep this packet
>
>
>
> This group is great BTW, I like having to verify answers, even if I'm
wrong
> :)
>
>
>
> -ryan
>
>
>
> From: Cisco Fanatic
> [mailto:ebay_products_at_hotmail.com<mailto:ebay_products_at_hotmail.com>]
> Sent: Tuesday, April 14, 2009 1:33 PM
> To: tharakabraham_at_gmail.com<mailto:tharakabraham_at_gmail.com>; Ryan West
> Cc: ccie.paul_at_gmail.com<mailto:ccie.paul_at_gmail.com>;
> ccielab_at_groupstudy.com<mailto:ccielab_at_groupstudy.com>
> Subject: RE: CDP
>
>
>
> If you configure "cdp holdtime" on SW4.
>
> Then a receiving device (R1, R2, SW1, SW2, etc) should hold the
information
> sent by your device for x amount of seconds before discarding it.
>
> Take a look at the command usage.
>
> -Yuri
>
> > Date: Tue, 14 Apr 2009 16:58:16 +0200
> > Subject: Re: CDP
> > From: tharakabraham_at_gmail.com<mailto:tharakabraham_at_gmail.com>
> > To: rwest_at_zyedge.com<mailto:rwest_at_zyedge.com>
> > CC: ccie.paul_at_gmail.com<mailto:ccie.paul_at_gmail.com>;
> ccielab_at_groupstudy.com<mailto:ccielab_at_groupstudy.com>
> >
> > Paul,
> > As Ryan said change the hold-time, but is it all the neighbors of SW4
or
> is
> > it that SW4 should hold of the neighbor devices.??
> > Both are different, so please double check the question.
> >
> >
> > BR,
> > Tharak.
> >
> >
> >
> >
> >
> > On Tue, Apr 14, 2009 at 4:05 PM, Ryan West
> <rwest_at_zyedge.com<mailto:rwest_at_zyedge.com>> wrote:
> >
> > > Paul,
> > >
> > > I would say all devices need their hold time changed.
> > >
> > > -ryan
> > >
> > > -----Original Message-----
> > > From: nobody_at_groupstudy.com<mailto:nobody_at_groupstudy.com>
> [mailto:nobody_at_groupstudy.com<mailto:nobody_at_groupstudy.com>] On Behalf
Of
> > > Paul Adams
> > > Sent: Tuesday, April 14, 2009 9:58 AM
> > > To: Cisco certification
> > > Subject: CDP
> > >
> > > Hi GS,
> > >
> > > (Q) : All neighbour devices of SW4 must hold cdp information 5
minutes.
> (
> > > neighboring device of SW4 are SW1 / SW2 / R1 / R2 )
> > >
> > >
> > > I didnt understood the requirement for the above question, I know
the
> > > default CDP holdtime is 180
> > >
> > >
> > > using the help ? i get only command cdp hold-time, but do I need to
use
> on
> > > all neighboring device of SW4 or just on SW4
> > >
> > >
> > > Blogs and organic groups at http://www.ccie.net<http://www.ccie.net/
>
> > >
> > >
Received on Fri Apr 17 2009 - 09:23:12 ART

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