Router - Cisco 887VA PPP Settings: Difference between revisions

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Revision as of 12:33, 8 December 2015 (view source) AA-Andrew (talk \| contribs) (Created page with "I'm using a Cisco 887VA with your VDSL2 service (only recently joined). From the start, I've had an issue where the session would bounce several times before coming up stable....")		Latest revision as of 00:02, 15 March 2017 (view source) Reedy (talk \| contribs) m (→‎top: clean up, typos fixed: eg, → e.g.,, the the → the)
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The following is from a customer with a Cisco 887VA: I'm using a Cisco 887VA with your VDSL2 service (only recently joined).▼ From the start, I've had an issue where the session would bounce several▼ ▲I'm using a Cisco 887VA with your VDSL2 service ~~(only recently joined)~~. ▲~~From the start,~~ I've had an issue where the session would bounce several times before coming up stable. I thought it was an IPv6 issue, as between bounces, v6 wasn't being passed but v4 was. Turns out something per second. After that it throttles them for 30 seconds and misses a load of keepalives, whereupon it drops the session. That rate limit was probably fine in the past, but more stuff gets negotiated now (ege.g., IPv6) and I guess the line rates of VDSL means it all happens quicker too. For me, that repeated a few times until it happened to get through the whole process - generally taking ~~5-10~~5–10 minutes to get a stable session. I guess some control packets get delayed every now and then just enough to not trigger the throttling. I only have the 40M service - maybe with Doubles the amount of ppp control packets allowed per second, backoff stays ~~the~~ the same.