RE: [nsp] a question CRC error and resent

From: Metzger, Chuck (chuck.metzger@divine.com)
Date: Thu Apr 19 2001 - 16:54:12 EDT


  Gert,

That's not exactly true. On a 10mb half duplex connection a collision while
sending a frame will cause the router to back off and retransmit that frame.

Chuck

-----Original Message-----
From: Gert Doering
To: Tatsuya Kawasaki; David Sinn
Cc: cisco-nsp@puck.nether.net
Sent: 4/19/01 10:55 AM
Subject: Re: [nsp] a question CRC error and resent

hi,

On Thu, Apr 19, 2001 at 06:51:31AM -0400, Tatsuya Kawasaki wrote:
> I belive you are correct onf UDP packet.
> But I believe TCP packet, there will be retransmit,
> if CRC occur btwn routers.
>
> Someone have any comment on this???

The end station will retransmit if the packet is lost or corrupted on
the way. The router will *never* retransmit a packet, except if the
router is also the end station of the TCP connection ("telnet to
router").

Literature recommendation: Richard Stevens, TCP/IP Illustrated.

gert

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