RX Packet Errors

Hello all

Can anyone explain to me exactly what RX packet errors are, why I am getting them and is there an acceptable level of errors or should there be none at all?
From the start...
I have a BT Voyager 2100 router connected to BTbroadband. My PC is connected via ethernet. My Router syncs up at around 7500kb/s. I was having problems with intermittent connection until last week when I was visited by a BT engineer who found a corroded joint outside my house. After this, all was fine for 3 or 4 days until my connection completely slowed down....web pages were painfull etc. I ran speed tests at various sites and found my speed was well below 1Mb/s..sometimes 185Kb/s. I then noticed in the router stats that I was getting lots of RX packet errors. RXPackets/Errors 88247/1514. Spoke to ISP who insist nothing is wrong with my line...Can you help me.....please??

To add to first post...

The Indian helpdesk has arranged for the interleaving to be removed from my line.... this puzzles me....isn't interleaving supposed to correct errors on the line....or rather minimize the impact of them. How would this stop the packet errors and improve my throughput?

Interleaving reduces the number of unrecoverable errors on the line by splitting the data up and sending the bits in a different order. The theory being that a burst of interference will knock out several bits in a row, and if all the bits are from the same byte, then they cannot be recovered. If the bits are sent in a different order, a sequence of bits knocked out by interference will come from different bytes, and be recoverable. The downside of interleaving is that latency is slightly increased by the time it takes to reassemble the bits in the correct order.

Errors in themselves are not a problem, but lots of unrecoverable errors will slow down data, because of packet re-tries.

But is that not why my connection is slower than it should be?.....because of the Rx Packet errors? Each time I get an errored packet he has to requested to send again does it not, thus slowing the connection? So the big question is...how can I get rid of them? Surely removing the interleaving will not remedy this?

Soooo many questions..

I don't think the slow speeds are much to do with packet errors. It's probably a lot more down to the fact that you've had a line fault which has caused your BRAS profile to drop. This should recover over the next few days, but may take up to a week to get back to reasonable figures. The data throughput of your line is governed by your BRAS profile, and not the sync speed of the modem/router. If your modem is sync'ing at 7500kbps, you should not need interleaving.

Edited by deleted (Fri 13-Oct-06 09:11:01)