1. First, the ping to this device is NOT a broadcast but a unicast packet. Second, the
Ethernet CSMA/CD algorithm will take care of retransmission due to collisions. IP/ICMP
layer is does not retransmit, but (as you know) a standard "ping" does wait for an
answer and tells you if it doesn't get a reply. So yes, the router's ethernet
interface
will retransmit a frame if it sees a collision, just like any other ethernet device.
2. If the problem is ethernet, it could be a flaky ethernet card or cable, but there
are
a lot of possibilities, including software doing too many broadcasts, bad port on a
hub/switch, etc. If possible, swap the cable from the evil machine (where it plugs into
the NIC) with a known-good machine on the same subnet that is being monitored by
Whatsup
and see if the problem moves.
Here's a Cisco URL for troubleshooting ethernet.
http://www.cisco.com/univercd/cc/td/doc/cisintwk/itg_v1/tr1904.htm
David Toalson wrote:
> <snip> , so I have two questions. 1. Does a
> router rebroadcast a ping if there is a collision? 2. Anything else
> you can think of that would cause this to happen on only the one device
> out of the 80?
> <snip>
> David Toalson
> 816-701-4142
>
> _________________________________
> FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
> Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
_________________________________
FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
