<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-family: Calibri, sans-serif; "><div><div><div>John,</div><div><br></div><div>We have an active deployment of CER with Juniper EX switches. These switches support LLDP as well. The only supported ERL mapping is via subnets. In our building, we have 6 floors. We divided each floor in half and gave it it's own voice subnet. Therefore we have a total of 12 ERLs and this seems to work well, though not nearly as integrated as the Cisco switch/CDP router.</div><div><br></div><div><div><div style="font-family: Helvetica; font-size: medium; ">Mike Wilusz, CCNA</div><div style="font-family: Helvetica; font-size: medium; ">Telecommunications & Networking Supervisor</div><div style="font-family: Helvetica; font-size: medium; ">Price Chopper Supermarkets / The Golub Corporation</div><div style="font-family: Helvetica; font-size: medium; "><br></div></div></div></div></div><div><br></div><span id="OLK_SRC_BODY_SECTION"><div style="font-family:Calibri; font-size:11pt; text-align:left; color:black; BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; PADDING-RIGHT: 0in; BORDER-TOP: #b5c4df 1pt solid; BORDER-RIGHT: medium none; PADDING-TOP: 3pt"><span style="font-weight:bold">From: </span> John Burk <<a href="mailto:john.burk@gmail.com">john.burk@gmail.com</a>><br><span style="font-weight:bold">Date: </span> Wed, 8 Sep 2010 12:38:56 -0400<br><span style="font-weight:bold">To: </span> "<a href="mailto:cisco-voip@puck.nether.net">cisco-voip@puck.nether.net</a>" <<a href="mailto:cisco-voip@puck.nether.net">cisco-voip@puck.nether.net</a>><br><span style="font-weight:bold">Subject: </span> [cisco-voip] Cisco Emergency Responder on third-party switches<br></div><div><br></div>Does anybody have experience rolling out CER with third party switches, specifically Extreme x450 series? These switches support lldp but I am not sure if CER supports LLDP for ERL?<br><br>I am thinking about doing ERL by subnet, and dividing buildings into zones with their own subnets.<br><br>any advice?<br></span></body></html>