The short answer is that it will not work most likely.<br><br>IP Header compression needs to be supported on EVERY hop in order to function.<br><br>So if your MPLS provider can not support it your only option would be to encapsulate that traffic in something (GRE,IPSEC) <br>
<br>Craig<br><br><div class="gmail_quote">On Mon, Dec 14, 2009 at 11:36 AM, Matthew Linsemier <span dir="ltr"><<a href="mailto:mlinsemier@apassurance.com">mlinsemier@apassurance.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div>
<font face="Calibri, Verdana, Helvetica, Arial"><span style="font-size: 11pt;">We ran into similar problems when we tried to enable RTP Header compression over our MPLS network. In the end we were told by TAC that our MPLS provider (Sprint) would also have to enable RTP header compression on their routers to support this. I was still a little caught off guard by this answer as I had read conflicting stories on the web. In the end we ended up not enabling RTP header compression.<br>
<br>
Matt<div><div></div><div class="h5"><br>
<br>
<br>
On 12/14/09 11:27 AM, "O'Brien, Neil" <<a href="http://nobrien@datapac.com" target="_blank">nobrien@datapac.com</a>> wrote:<br>
<br>
</div></div></span></font><blockquote><div><div></div><div class="h5"><font color="#1f497d"><font size="2"><font face="Verdana, Helvetica, Arial"><span style="font-size: 10pt;"> <br>
Hi Craig,<br>
<br>
See below. I believe the WAN is MPLS but anything past our CE router is ISP controlled.<br>
<br>
<br>
class-map match-all CM-MATCH-SIG<br>
match ip dscp cs3 <br>
class-map match-all CM-MATCH-RTP<br>
match protocol rtp<br>
<br>
policy-map PM-QOS<br>
class CM-MATCH-RTP<br>
priority percent 50<br>
compress header ip rtp<br>
class CM-MATCH-SIG<br>
bandwidth percent 5<br>
class class-default<br>
fair-queue<br>
<br>
interface Serial0/3/0<br>
bandwidth 2000<br>
ip address *.*.*.* <br>
service-policy output PM-QOS<br>
<br>
Thanks,<br>
<br>
Neil<br>
</span></font></font></font></div></div><font face="Calibri, Verdana, Helvetica, Arial"><span style="font-size: 11pt;"><br>
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