Re: CDP

Jared,

Am re-writing the Qs Paul asked in here couple of days back.

(Q) : All neighbour devices of SW4 must hold cdp information 5 minutes. (
neighboring device of SW4 are SW1 / SW2 / R1 / R2 )

Ryan is pointing that as the max parameter which can be configured is 255
sec implies that the hold time is 4 mins and 15 secs !

So how do we go about this Qs ?

On Fri, Apr 17, 2009 at 3:58 PM, Jared Scrivener <jscrivener_at_ipexpert.com>wrote:

> Consensus? The command will accept a maximum parameter of 255 so 4min 15sec
> is the maximum configurable value.
>
> Cheers,
>
> Jared Scrivener CCIE3 #16983 (R&S, Security, SP), CISSP
> Sr. Technical Instructor - IPexpert, Inc.
> Telephone: +1.810.326.1444
> Fax: +1.810.454.0130
> Mailto: jscrivener_at_ipexpert.com
>
>
> -----Original Message-----
> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
> Ryan
> West
> Sent: Friday, 17 April 2009 9:27 AM
> To: Ram Shummoogum; ccie.weaver_at_gmail.com
> Cc: ccielab_at_groupstudy.com
> Subject: RE: CDP
>
> Is that the consensus then? 4 mins and 15 seconds is the max?
>
> -ryan
>
> -----Original Message-----
> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
> Ram
> Shummoogum
> Sent: Friday, April 17, 2009 9:23 AM
> To: ccie.weaver_at_gmail.com
> Cc: ccielab_at_groupstudy.com
> Subject: Re: CDP
>
> 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/
> >
> > > >
> > > >
> _______________________________________________________________________
> > > > 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
> > >
> > >
> > > 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
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> >
> > ________________________________
> >
> > Quick access to your favorite MSN content and Windows Live with Internet
> > Explorer 8. Download FREE
> > now!<
> > http://ie8.msn.com/microsoft/internet-explorer-8/en-us/ie8.aspx?ocid=B03
> > 7MSN55C0701A>
> >
> >
> > Blogs and organic groups at http://www.ccie.net
> >
> > _______________________________________________________________________
> > Subscription information may be found at:
> > http://www.groupstudy.com/list/CCIELab.html
>
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
>
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
>
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
>
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html

Blogs and organic groups at http://www.ccie.net
Received on Fri Apr 17 2009 - 16:24:44 ART