Why would you need to? Do you have a link light at the interface port and
the hub/switch? Does the interface show Interface UP line Protocol up?
Cat 5 ethernet uses the 568B pinout for the RJ45 connectors. You could
create loopback plug by cross-connecting pins 1-3 and 2-6.
-Original Me
Hi,
If you want to check your protocol stack you should be able to ping yourself, check
you ip interfaces and/or check your route table (assuming IP is used). There are a
number of utilities that check network cards.
Teunis
Hobart, Tasmania
Australia
On Monday, March 19, 2001 at 07:56:26 AM
A Cisco router actually does a loopback by default every 10 seconds on
Ethernet and Fast Ethernet interfaces. Cisco calls it a keepalive, but it's
the same as the old-fashioned loopback frame.
There's no command to start a loopback test, though. It's an interface
configuration command.
Prisci
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