<div>Hello Christopher</div>
<div> </div>
<div>I was looking for a way that takes care of all types of traffic. I have seen in previous IOS versions that</div>
<div>the pppoe-client requires the definition of a vpdn-group.</div>
<div> </div>
<div>In the vpdn-group definition there is a command "ip mtu adjust"</div>
<div> </div>
<div>vpdn-group PPPoE</div>
<div> request-dialin</div>
<div> protocol pppoe</div>
<div> ip mtu adjust </div>
<div> </div>
<div>I was hoping this to provide a solution but I was not able to test it though.</div>
<div> </div>
<div>I am not sure how other CPEs (apart from Cisco) behave. At least when the</div>
<div>PPPoE session is initiated from my windows PC it does not take into account</div>
<div>the MRU of the LNS</div>
<div> </div>
<div>Thnx<br><br> </div>
<div><span class="gmail_quote">On 6/8/08, <b class="gmail_sendername">Teague, Christopher J</b> <<a onclick="return top.js.OpenExtLink(window,event,this)" href="mailto:Christopher.Teague@mybrighthouse.com" target="_blank">Christopher.Teague@mybrighthouse.com</a>> wrote:</span>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">
<div><span style="FONT-WEIGHT: normal; FONT-SIZE: 10pt; FONT-FAMILY: Arial"><a onclick="return top.js.OpenExtLink(window,event,this)" href="http://www.cisco.com/en/US/tech/tk175/tk15/technologies_tech_note09186a0080093bc7.shtml" target="_blank">http://www.cisco.com/en/US/tech/tk175/tk15/technologies_tech_note09186a0080093bc7.shtml</a><br>
<br>I use the ip mss adjust command on the LNS to resolve MTU problems from my CPEs, not exactly sure if this would help you or not but this seems pretty flexible.<br><br>
<hr>
<span style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">From: </span><span style="FONT-WEIGHT: normal; FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">Victor Lyapunov <<a onclick="return top.js.OpenExtLink(window,event,this)" href="mailto:victor.lyapunov@gmail.com" target="_blank">victor.lyapunov@gmail.com</a>></span><br>
<span style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">Sent: </span><span style="FONT-WEIGHT: normal; FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">Sunday, June 08, 2008 5:47 AM</span><br><span style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">To: </span><span style="FONT-WEIGHT: normal; FONT-SIZE: 10pt; FONT-FAMILY: Tahoma"><a onclick="return top.js.OpenExtLink(window,event,this)" href="mailto:cisco-bba@puck.nether.net" target="_blank">cisco-bba@puck.nether.net</a> <<a onclick="return top.js.OpenExtLink(window,event,this)" href="mailto:cisco-bba@puck.nether.net" target="_blank">cisco-bba@puck.nether.net</a>></span><br>
<span style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">Subject: </span><span style="FONT-WEIGHT: normal; FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">[cisco-bba] How can Cisco CPE PPPoE MTU size adapt to MRU of LNS?</span><br>
<br></span>
<div>
<div>Hello </div>
<div> </div>
<div>I have a question regarding the ability to adapt the MTU for a PPPoE session.</div>
<div> </div>
<div>From the LNS side using the commands:</div>
<div> </div>
<div>Virtual-template X</div>
<div> ppp mtu adaptive</div>
<div> </div>
<div>The LNS can apapt the length of the its MTU, according to the value set by the CPE.</div>
<div> </div>
<div>The question is how a cisco CPE (using IOS >= 12.4) can do the same, adapt</div>
<div>its MTU to the MRU value advertised by the LNS?</div>
<div> </div>
<div>I am using cisco 1700 for CPE with IOS 12.4. I could not find a command similar</div>
<div>to the "ppp mtu adaptive" that could be used inside the Dialer interface of the PPPoE client.</div>
<div> </div>
<div>Does anyone knows how can a CISCO CPE adapt its MTU to the MRU value advertised</div>
<div>by the LNS?</div>
<div> </div>
<div>Kind Regards</div></div><br>
<hr>
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