[cisco-voip] OT: ping issues on Cisco switches but not hub

[Koziol, Lukasz]

I was going to say some sort of routing issue between the IPs, maybe vlans….gl



Lukasz Koziol | 847.626.6773 | lkoziol at rcsvc.com<mailto:lkoziol at rcsvc.com>
   Voice/Network Engineer
   RemoteCare Services
[cid:image001.png at 01CBAB49.DA426DE0]

From: Lelio Fulgenzi [mailto:lelio at uoguelph.ca]
Sent: Tuesday, August 16, 2011 1:34 PM
To: Koziol, Lukasz
Cc: cisco-voip (cisco-voip at puck.nether.net)
Subject: Re: [cisco-voip] OT: ping issues on Cisco switches but not hub

can't recall what it said, it was in a test environment. both servers were on a switch with a wr erase performed. the only thing i can think of is i didn't have a portfast configured now that i think of. so that might be the next thing i do during troubleshooting.



---
Lelio Fulgenzi, B.A.
Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1
(519) 824-4120 x56354 (519) 767-1060 FAX (JNHN)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Cooking with unix is easy. You just sed it and forget it.
                              - LFJ (with apologies to Mr. Popeil)

________________________________
From: "Lukasz Koziol" <lkoziol at rcsvc.com>
To: "Lelio Fulgenzi" <lelio at uoguelph.ca>, "cisco-voip (cisco-voip at puck.nether.net)" <cisco-voip at puck.nether.net>
Sent: Tuesday, August 16, 2011 2:31:39 PM
Subject: RE: [cisco-voip] OT: ping issues on Cisco switches but not hub


What’s the traceroute show from each PC?

And what does the traceroute show from the switch to each PC?



Lukasz Koziol
   Voice/Network Engineer

From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Lelio Fulgenzi
Sent: Tuesday, August 16, 2011 12:07 PM
To: cisco-voip (cisco-voip at puck.nether.net)
Subject: [cisco-voip] OT: ping issues on Cisco switches but not hub

I have a couple of SuperMicro PCs running CentOS which can not ping each other when on a Cisco switch, but they can ping each other on a hub. I have to grab a cheap consumer switch to test on as well but thought I'd shoot this out to the group to see if anyone has seen anything like this before.



---
Lelio Fulgenzi, B.A.
Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1
(519) 824-4120 x56354 (519) 767-1060 FAX (JNHN)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Cooking with unix is easy. You just sed it and forget it.
                              - LFJ (with apologies to Mr. Popeil)
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