From: Marvin Greenlee (marvingreenlee@yahoo.com)
Date: Wed May 19 2004 - 11:06:37 GMT-3
Thanks for the article Ts. Here is the section
regarding 0000, FFFF, and 4040.
"The ping command is generally used to make sure that
two devices that are remote from one another can
attain basic Layer 3 connectivity. The ping command
also has an "extended commands" section that allows
you to enter the 2-byte data pattern, in hexadecimal
format, that is repeated in the payload of the ping
packet.
Three useful ping data patterns that expose line
problems include the following:
0x0000 - Line-code mismatches
0xFFFF - Repeater power problems
0x4040 - Timing problems
The 0x4040 extended ping pattern also enables you to
detect jitter and wander. T1 phase variations greater
than or equal to 10Hz are considered jitter, and
variations less than 10Hz are considered wander. "
Marvin Greenlee
Network Learning, Inc.
marvin@ccbootcamp.com
--- "Sivaramakrishnan, Ts"
<ts.sivaramakrishnan@hp.com> wrote:
> Hi,
>
> Hope this is one you are looking for..
>
> Regards
> Shivas
>
> T.S.Sivaramakrishnan - CCIE 10367
> HP Services
> Consultant - Technical Support
> Hewlett-Packard
> N0. 24, Hosur Main Road
> Adugodi
> Bangalore - 560 030
> India
> +91-80-5041673 mobile
> +91-9844101719+91-80-5276966/527 4213
>
>
>
>
>
>
>
> -----Original Message-----
> From: nobody@groupstudy.com
> [mailto:nobody@groupstudy.com]On Behalf Of
> Marvin Greenlee
> Sent: Wednesday, May 19, 2004 00:43
> To: Andaluz, Danilo
> Cc: ccielab@groupstudy.com
> Subject: Re: Extended Ping Data Patterns for
> Troubleshooting line
> problems
>
>
> I came across a reference to a troubleshooting
> article
> "Troubleshooting the WAN" in Packet 2001 Fourth
> Quarter, but all the links to get to it were broken.
> Does anyone have the back issue?
>
> --- "Andaluz, Danilo" <danny.andaluz@hp.com> wrote:
> > There is a page on CCO that has a table that lists
> > what all the
> > different data patterns are used for in an
> extended
> > ping. Is anyone
> > familiar with this page? I've been looking for
> > almost an hour and
> > cannot find it.
> >
> >
> >
>
>
>
>
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