<html><head><style type='text/css'>p { margin: 0; }</style></head><body><div style='font-family: Verdana; font-size: 10pt; color: #000000'>Ideally, we would have each VG224 hooked up directly to a core switch (no distribution layer here), however, there are not enough ports on it, so we created a VLAN for each network segment on two switch stacks, each with dual links to the distribution layer. The VG224 has a link to each stack.<br><br>So something like this:<br><br><img src="cid:DWT150"><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 (ANNU)<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>"Bill Riley" <bill@hitechconnection.net><br><b>To: </b>"Eric Pedersen" <PedersenE@bennettjones.com>, "Lelio Fulgenzi" <lelio@uoguelph.ca>, "Jason Burns" <burns.jason@gmail.com><br><b>Cc: </b>"Cisco List VoIP" <cisco-voip@puck.nether.net><br><b>Sent: </b>Thursday, January 26, 2012 8:23:17 AM<br><b>Subject: </b>RE: [cisco-voip] ISR/VG Ethernet redundancy<br><br><!--[if !mso]><style>v\:* {behavior:url(#default#VML);}
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</o:shapelayout></xml><![endif]--><div class="WordSection1"><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">For those that are running a routing protocol on your VG224 or ISR used as a voice gateway do you have them dual uplinked? It’s great that you have a routing protocol running in the event the L3 path changes but what about the physical uplink from the VG to the switches? Do you have that dual connected? Are you using either channel or are your running multiple L3 subnets on each interface? </span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span></p><div><div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in"><p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> cisco-voip-bounces@puck.nether.net [mailto:cisco-voip-bounces@puck.nether.net] <b>On Behalf Of </b>Eric Pedersen<br><b>Sent:</b> Wednesday, January 25, 2012 4:04 PM<br><b>To:</b> Lelio Fulgenzi; Jason Burns<br><b>Cc:</b> Cisco List VoIP<br><b>Subject:</b> Re: [cisco-voip] ISR/VG Ethernet redundancy</span></p></div></div><p class="MsoNormal"> </p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">We're running OSPF on our VG224s and ISR PRI gateways for uplink redundancy with no issues so far. It's nice to have the routing protocol intelligence to handle upstream failures.</span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Eric</span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span></p><div><div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in"><p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;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> 25 January 2012 1:19 PM<br><b>To:</b> Jason Burns<br><b>Cc:</b> Cisco List VoIP<br><b>Subject:</b> Re: [cisco-voip] ISR/VG Ethernet redundancy</span></p></div></div><p class="MsoNormal"> </p><div><p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-size:10.0pt;font-family:"Verdana","sans-serif";color:black">We ended up going the route of EIGRP routing on the VG224s and 3800s. <br><br>Unfortunately, we got some not so positive feedback regarding the supportedness of EIGRP on VG224s, but like you found out, no real direction on how to configure redundancy on these.<br><br>I'm far less concerned with a port going down than a switch, so having the VG224s uplinked to different switches is our choice.<br><br>Lelio<br><br><br>---<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 (ANNU)<br>^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^<br>Cooking with unix is easy. You just sed it and forget it. <br> - LFJ (with apologies to Mr. Popeil)</span></p><div class="MsoNormal" style="text-align:center" align="center"><span style="font-size:10.0pt;font-family:"Verdana","sans-serif";color:black"><hr size="2" width="100%" align="center"></span></div><p class="MsoNormal" style="margin-bottom:12.0pt"><b><span style="font-size:10.0pt;font-family:"Verdana","sans-serif";color:black">From: </span></b><span style="font-size:10.0pt;font-family:"Verdana","sans-serif";color:black">"Jason Burns" <<a href="mailto:burns.jason@gmail.com" target="_blank">burns.jason@gmail.com</a>><br><b>To: </b>"Bill Riley" <<a href="mailto:bill@hitechconnection.net" target="_blank">bill@hitechconnection.net</a>><br><b>Cc: </b>"Cisco List VoIP" <<a href="mailto:cisco-voip@puck.nether.net" target="_blank">cisco-voip@puck.nether.net</a>><br><b>Sent: </b>Wednesday, January 25, 2012 3:12:26 PM<br><b>Subject: </b>Re: [cisco-voip] ISR/VG Ethernet redundancy<br><br>I second Etherchannel from the upstream device. I had a customer who insisted on binding to the PortChannel interface for the voice protocols, even though we recommended using the Loopback. It's up and running just fine and does handle failure of a single link as expected.<br><br>-Jason</span></p><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Verdana","sans-serif";color:black">On Wed, Jan 25, 2012 at 3:07 PM, Bill Riley <<a href="mailto:bill@hitechconnection.net" target="_blank">bill@hitechconnection.net</a>> wrote:</span></p><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Verdana","sans-serif";color:black">You should use a loop back and bind everything to in instead of the physical<br>interface.<br><br>If you want Ethernet redundancy you should be able to create an ether<br>channel down from the router if you are going into the same switch or have<br>VSS on the 6500.<br><br>If not I have also bridged it into two separate switches using a BVI like<br>you are looking at.</span></p><div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Verdana","sans-serif";color:black"><br><br>-----Original Message-----<br>From: <a href="mailto:cisco-voip-bounces@puck.nether.net" target="_blank">cisco-voip-bounces@puck.nether.net</a><br>[mailto:<a href="mailto:cisco-voip-bounces@puck.nether.net" target="_blank">cisco-voip-bounces@puck.nether.net</a>] On Behalf Of Ovidiu Popa<br>Sent: Wednesday, January 25, 2012 1:57 PM<br>To: Cisco List VoIP<br>Subject: [cisco-voip] ISR/VG Ethernet redundancy<br><br>Hello everyone<br><br>I have a few questions regarding bridge virtual interfaces and voice<br>protocols:<br>- is binding sccp and/or mgcp to a bvi interface supported by Cisco Tac?<br>- any official configuration guides for this kind of connectivity?<br>- anyone have this configuration in production and would care to share<br>his/hers feedback?<br><br><br>My main goal is to be able to use the spare ethernet interfaces on a<br>router/vg for redundancy but I was surprised by the lack of official<br>guidance on the subject.<br><br>Thanks<br>Ovidiu<br><br><br><br><br>_______________________________________________<br>cisco-voip mailing list<br><a href="mailto:cisco-voip@puck.nether.net" target="_blank">cisco-voip@puck.nether.net</a><br><a href="https://puck.nether.net/mailman/listinfo/cisco-voip" target="_blank">https://puck.nether.net/mailman/listinfo/cisco-voip</a><br><br>_______________________________________________<br>cisco-voip mailing list<br><a href="mailto:cisco-voip@puck.nether.net" target="_blank">cisco-voip@puck.nether.net</a><br><a href="https://puck.nether.net/mailman/listinfo/cisco-voip" target="_blank">https://puck.nether.net/mailman/listinfo/cisco-voip</a></span></p></div></div></div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Verdana","sans-serif";color:black"><br><br>_______________________________________________<br>cisco-voip mailing list<br><a href="mailto:cisco-voip@puck.nether.net" target="_blank">cisco-voip@puck.nether.net</a><br><a href="https://puck.nether.net/mailman/listinfo/cisco-voip" target="_blank">https://puck.nether.net/mailman/listinfo/cisco-voip</a></span></p></div><pre>The contents of this message may contain confidential and/or privileged</pre><pre>subject matter. 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