[c-nsp] PPPOE intermittently fails to respond to PPP keepalives on 7204xvr with 12.4(24)T5

[jjeffries]

I've seem this, also on a 7200. I don't recall the troubled IOS version 
exactly; 15.(anything) fixes it.

The problem was that the 7200 was not correctly setting the 802.1p COS 
for the PPPOE keepalives, etc. In times of subscriber/network 
congestion, the keepalives were getting randomly dropped and certain 
routers, mostly Linksys, did not like that one bit and would disconnect.

There is no config option on the 7200 to set/change the COS for 
pppoe-in-vlan, it just does it. Or it should, anyway.

-jason

On Wed, Aug 21, 2013 at 12:49 PM, Richard Haakma <richard at kci.net.nz> 
wrote:

 >Hi.
 >
 >I have a 7204VXR (yes I know it is old) which is serving broadband
 >customers over ethernet. Another party supplies the last mile and we >get
 >a Gigabit ethernet connection with QinQ where end users get a VLAN >each.

...