<html><head><style type='text/css'>p { margin: 0; }</style></head><body><div style='font-family: Verdana; font-size: 10pt; color: #000000'>thanks David. some good ideas there. <br><br>the real issue is with a working switch, the wr erase was to start from scratch, but that might not have worked properly after reading some of your comments. the interfaces were definitely up and all on VLAN 1. <br><br>definitely some things to look at....<br><br><span><br><span name="x"></span>---<br>Lelio Fulgenzi, B.A.<br>Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1<br>(519) 824-4120 x56354 (519) 767-1060 FAX (JNHN)<br>^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^<br>Cooking with unix is easy. You just sed it and forget it. <br> - LFJ (with apologies to Mr. Popeil)<br><span name="x"></span><br></span><br><hr id="zwchr"><b>From: </b>"David Bigge" <davidbigge@hotmail.com><br><b>To: </b>lelio@uoguelph.ca, lkoziol@rcsvc.com<br><b>Cc: </b>cisco-voip@puck.nether.net<br><b>Sent: </b>Tuesday, August 16, 2011 3:23:29 PM<br><b>Subject: </b>RE: [cisco-voip] OT: ping issues on Cisco switches but not hub<br><br>
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After wri erase you should only have vlan 1...but if VTP was configured you could still have the vlan.dat file which might provide some odd vlan's.<br><br>Check active vlans-<br><br>"sho vlan br"<br><br>Are the two ports of the PC's in the same vlan? If yes is the vlan admin'ed down...are both PC ports no shut? <br><br>sho int status<br><br>sho run int vlan1<br><br>config t<br>int vlan1 <br>no shut<br><br>If that is up...does the switch have mac/arp entries for the PC's?<br><br>sho ip arp<br>sho mac address-table<br><br><div><hr id="stopSpelling">Date: Tue, 16 Aug 2011 14:33:46 -0400<br>From: lelio@uoguelph.ca<br>To: lkoziol@rcsvc.com<br>CC: cisco-voip@puck.nether.net<br>Subject: Re: [cisco-voip] OT: ping issues on Cisco switches but not hub<br><br>
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</style><div style="font-family: Verdana; font-size: 10pt; color: rgb(0, 0, 0);">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.<br><br><br><span><br><span></span>---<br>Lelio Fulgenzi, B.A.<br>Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1<br>(519) 824-4120 x56354 (519) 767-1060 FAX (JNHN)<br>^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^<br>Cooking with unix is easy. You just sed it and forget it. <br> - LFJ (with apologies to Mr. Popeil)<br><span></span><br></span><br><hr id="ecxzwchr"><b>From: </b>"Lukasz Koziol" <lkoziol@rcsvc.com><br><b>To: </b>"Lelio Fulgenzi" <lelio@uoguelph.ca>, "cisco-voip (cisco-voip@puck.nether.net)" <cisco-voip@puck.nether.net><br><b>Sent: </b>Tuesday, August 16, 2011 2:31:39 PM<br><b>Subject: </b>RE: [cisco-voip] OT: ping issues on Cisco switches but not hub<br><br>
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<p class="ecxMsoNormal"><span style="font-size: 11pt; font-family: 'Calibri','sans-serif'; color: rgb(31, 73, 125);">What’s the traceroute show from each PC?</span></p>
<p class="ecxMsoNormal"><span style="font-size: 11pt; font-family: 'Calibri','sans-serif'; color: rgb(31, 73, 125);"> </span></p>
<p class="ecxMsoNormal"><span style="font-size: 11pt; font-family: 'Calibri','sans-serif'; color: rgb(31, 73, 125);">And what does the traceroute show from the switch to each PC?</span></p>
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<p class="ecxMsoNormal"><b><span style="font-size: 9pt; font-family: 'Calibri','sans-serif'; color: rgb(51, 51, 153);">Lukasz Koziol</span></b><span style="font-size: 9pt; font-family: 'Calibri','sans-serif'; color: rgb(31, 73, 125);"></span></p>
<p class="ecxMsoNormal"><span style="font-size: 9pt; font-family: 'Calibri','sans-serif'; color: rgb(31, 73, 125);"> Voice/Network Engineer</span></p>
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<p class="ecxMsoNormal"><b><span style="font-size: 10pt; font-family: 'Tahoma','sans-serif';">From:</span></b><span style="font-size: 10pt; font-family: 'Tahoma','sans-serif';"> cisco-voip-bounces@puck.nether.net [mailto:cisco-voip-bounces@puck.nether.net]
<b>On Behalf Of </b>Lelio Fulgenzi<br>
<b>Sent:</b> Tuesday, August 16, 2011 12:07 PM<br>
<b>To:</b> cisco-voip (cisco-voip@puck.nether.net)<br>
<b>Subject:</b> [cisco-voip] OT: ping issues on Cisco switches but not hub</span></p>
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<p class="ecxMsoNormal" style="margin-bottom: 12pt;"><span style="font-size: 10pt; font-family: 'Verdana','sans-serif'; color: black;">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.<br>
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---<br>
Lelio Fulgenzi, B.A.<br>
Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1<br>
(519) 824-4120 x56354 (519) 767-1060 FAX (JNHN)<br>
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^<br>
Cooking with unix is easy. You just sed it and forget it. <br>
- LFJ (with apologies to Mr. Popeil)<br>
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