Testing Network Connectivitiy at the MAC address level

[Tim Hempstead]

Trying to trouble shoot a network problem with a new server, (and not getting much in the way of help from our networks people).

I seem to remember that there is a HPUX command you can run which will test the connectivity to a MAC address on another machine, (on same subnet?) ... i.e. you run the command and it basically says whether the system can see the remote MAC address, (kinda like ping but at a lower level).

Does anyone have any pointers to what the command is?

Thanks

Tim

[Ermin Borovac · Accepted solution]

To check layer 2 connectivity you can use linkloop.

/usr/sbin/linkloop -i -n -v

NMID - select network interface to use
count - number of frames to transmit

You can get MAC address of the remote system with /usr/sbin/lanscan.

[Massimo Bianchi]

Hi,
the command is

linkloop

refer to the man page for the exact sintax.


HTH,
Massimo

[twang]

# lanscan
Hardware Station Crd Hdw Net-Interface NM MAC HP-DLPI DLPI
Path Address In# State NamePPA ID Type Support Mjr#
8/16/6 0x080009FD0A23 1 UP lan1 snap1 1 ETHER Yes 119
# linkloop 0x080009FD0A23

[Tim Hempstead]

Yes linkloop is the command i was thinking of.

Thanks everybody

Tim