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Storage Works SAN switch 2/16-EL - cannot ping

 
Colin Dawson
Occasional Visitor

Storage Works SAN switch 2/16-EL - cannot ping

We have two off-line SAN switches that we are able to ping without problem. We also have two on-line SAN switches that we are unable to ping. The configuration (showconfig) appears to be the same for each. The IP addresses, gateway etc. are identical on both the off-line and on-line kit.

Does anyone have any ideas as to why we're unable to ping the on-line kit?

Cheers.
5 REPLIES 5
tharrold
Frequent Advisor

Re: Storage Works SAN switch 2/16-EL - cannot ping

Have you checked that the network cables are actually plugged into the same subnet/vlan?

Swap the cable from a switch that you can ping.

by "off line", I'm assuming you just mean "not yet in production".

-tjh
Colin Dawson
Occasional Visitor

Re: Storage Works SAN switch 2/16-EL - cannot ping

Cheers Thomas,

I was able to ping one of the SAN switches up until the point I changed the final segment of the IP address. The IP remained within the same subnet.

By 'off-line' I mean we have a supposedly identical system to the 'live' system in which we can test modifications before making them to the 'on-line' system.

I've looked at the configuration of both the off-line switches and on-line switches and they appear to be identical.

On Monday I'll try returning the IP address to the old IP to see if I am able to ping again.

Thanks,
Colin.
tharrold
Frequent Advisor

Re: Storage Works SAN switch 2/16-EL - cannot ping

Possible IP address conflict? Duplicate IP?
Pau Garcia i Quiles
Frequent Advisor

Re: Storage Works SAN switch 2/16-EL - cannot ping

Colin, that "I was able to access the switch until I changed the ending of the IP address" sounds like a netmask problem.

What was the IP when you were able to ping the switch, what's the IP now and what's your netmask?
Uwe Zessin
Honored Contributor

Re: Storage Works SAN switch 2/16-EL - cannot ping

Make sure that you don't have IP addresses in the same subnet on the LAN port and the internal Fibre Channel interface.
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