Quote:
Originally Posted by qasdfdsaq
Your IP changes pretty much every time the PPPoE connection resets. How often that happens is mostly up to the reliability of your equipment, mine on average drops once every 90-120 days (excluding when I reset it myself)
The PPPoE session can also survive a VDSL resync, but only if you use your own router and set the timeout higher than the default.
All in all, it rarely changes IP unless your equipment frequently crashes or power cycles. Though like any ISP if you need a true fixed IP you'll need to pay for the business service.
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and the connection, and openreach's DLM.
eg. if DLM decides the errors are too low (too good) it will force a resync on more agressive settings, there is flip flop instances posted on the net. Your line seems to have settled perfectly in the DLM neither too bad or too good threshold. Given when I had adsl I have a history of noise I am very concerned DLM is going to cause me serious issues. The backup plan is if DLM does keep discconecting me I will switch to the 40/10 product and hope that the buffer that gives keeps things stable. Since the line is rated at 65/20 then 40/10 should have a decent noise margin so interleaving etc. isnt needed.
So I think your post could be misleading, it changes ip every time the pppoe session drops. Other residential isp's arent this agressive but considering BT retail are extorniate on static ip charges I think they are been agressive to make the residential service hard to use as a substitute. eg. sky have sticky ip's like VM as posted by craig and many xDSL isp's allow static ip's on residential accounts. But I have ordered it after deciding I will put up with the ip's if it happens although it may stop me graphing the connection.
Interesting on the timeout workaround tho, so that may be a way round it if my line isnt stable.
---------- Post added at 03:59 ---------- Previous post was at 03:56 ----------
Quote:
Originally Posted by qasdfdsaq
BT's timeout is specifically designed to not hang on even during a fast resync. There is no SRA.
With your own router and a properly adjusted timeout it will survive both a full modem reboot just fine. Never seen the DSLAM reboot so can't comment there...
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There is SRA (and now also RRA) in the vdsl2 spec.
http://www.embedded.com/design/connectivity/4007197/Minimizing-impacts-of-noise-for-Always-On-services-over-VDSL2-Networks?page=3
As to why openreach dont use it I dont know, it is far superior to DLM, DLM been some kind of scripted hack, whilst SRA part of the xDSL specsheet and changes the line settings without a connection drop.
My adsl experience was completely transformed with SRA.