RE: CDP

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/>
> >
> > _______________________________________________________________________
> > Subscription information may be found at:
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> >
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> >
> > _______________________________________________________________________
> > Subscription information may be found at:
> > http://www.groupstudy.com/list/CCIELab.html
>
>
> Blogs and organic groups at http://www.ccie.net<http://www.ccie.net/>
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
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>
>
>
>

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Received on Thu Apr 16 2009 - 16:09:18 ART