Event Logging Query - 582n

Can someone confirm what "xDSL linestate down" in the event logging of the router actually means?

Does it mean a disconnection to Plusnet (like a PPP session) or does it mean the modem has re synched?

(I did ask this question here, but no response)

(NB: Although I have had three of the above within a five minute period a few days ago my BT IP Profile remains the same)

Thanks

Looks like you are losing sync to me (rather than just the PPP session).

If you reconnect at a similar speed then your IP Profile won't change.

Can you see if the sync speed is different?

I can recommend RouterStats (free s/w) to monitor your line

Ooops sorry. I have an answer from Chris on the Plusnet Forum now. It refers to a PPP session ending, not a line line resynch.

I thought it meant that the ADSL connection was down, which is to be expected as you're not using the DSL port on the 582n - you're using one of the LAN ports as a WAN port to connect to the modem.

Loss of sync, but if noise has gone away and modem resyncs quickly it can do this before the remote devices register a PPP Timeout.

IP Profile can remain identical if everytime you resync it is at the same speed.

One piece of information is missing
The poster is on fibre so anything on the router log refers to the PPP session as it doesn't register a resync of the modem which may or may not have happened

Edited by deleted (Mon 25-Feb-13 22:14:47)

Thanks OldJim - you're correct of course. I got clarification from the Plusnet forum. (Sorry to cross post.)

I have been checking the router 'Up Time' as well as speedtest.btwholesale.com for profile changes. I presume that if the fibre 582n router did reboot this could be due to a modem re synch?

Modem resync would mean router would reauthenticate but no reason for it to totally reboot

In reply to a post by MrSaffron:

but no reason for it to totally reboot

I have had it happen once (before I moved to fibre and had a combined modem/router)... I forget which router, but I think there was a second re-sync while the router was partway through the re-authentication phase. Presumably it got confused and an error trap initiated a reboot.

But I'd agree it's more than a little unusual.

The message is about the xDSL connection, but just because the ADSL line is down it doesn't mean it was ever up! As far as I can remember, that message can be printed by the router on start-up, so perhaps the router just rebooted. For it to mean anything, there would have to be a corresponding xDSL linestate up, which there won't be if nothing is plugged into the ADSL port on the router!

Edited by deleted (Tue 26-Feb-13 12:57:22)

In reply to a post by MrSaffron:

Modem resync would mean router would reauthenticate but no reason for it to totally reboot

Would the above result in a "xDSL linestate Up" in the Event Log of the the router??

Many thanks for the other comments, very helpful.

In reply to a post by shalom2005:

Would the above result in a "xDSL linestate Up" in the Event Log of the the router??

On fibre the Openreach white box modem is looking after the xDSL line state, so the router doesn't know about it.

Its possible the same router could be used for ADSL so it prints these messages that can be safely ignored if you're on FTTC using the openreach white box modem as well as the router.