Lest we go through all of this again, a few weeks ago there was a great
thread on this very topic. The resolution was that in just about every
situation, it is the hosts that do the retransmitting, NOT the routers!
To find out why, go to the archives and search through the last three
months for a topic similar to this one. There is a some very useful
information contained therein.
HTH,
John
>>> "Brandon Ripper" <[EMAIL PROTECTED]> 3/26/01 11:25:10 AM
>>>
Hello,
Well, it depends what type of transmission problem occurs. If
a
CRC failure occurs on the serial link depending upon the protocol being
used between devices then that data may or may not be re-transmitted.
However, if either error checking is not present, or the devices do not
notice a problem, then the sending host will re-transmit packets per
TCP/IP
standard. The receiving host will actually request the re-transmission.
But
like I said, if a CRC error were to occur in a serial line protocol
then
neither host would be the wiser, and it would the routers would
re-transmit.
Brandon Ripper -ccna
At 10:37 AM 3/26/01 -0700, you wrote:
>Hi All,
>
>I know I should know this, but frankly I can not remember the details
to
>save my life...
>
>Let's say we have two routers connected over a serial link, they are
doing
>routing, not bridging. If the serial line takes a hit who is
responsible for
>retransmitting? The sending host or the first router?
>
>Now let's say same config but the routers are bridging over the serial
line.
>Who retansmits, the sending host or the first bridge?
>
>TIA
>
>John Hardman
>
>
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