bt and interleaved internet

rippling · 8 Jan 2010 at 18:57

my bt internet connection according to my homehub is interleaved , how do i turn this off as its giving me very bad ping times with my pc and xbox live , and why would my connection be interleaved anyway ?

rippling · 8 Jan 2010 at 18:58

here is my details can i get bt to remove the interleaved connection

Connection time 0 days, 0:01:20
Downstream 8,128 Kbps
Upstream 448 Kbps

ADSL settings
VPI/VCI 0/38
Type PPPoA
Modulation ITU-T G.992.1
Latency type Interleaved
Noise margin (Down/Up) 6.3 dB / 23.0 dB
Line attenuation (Down/Up) 36.0 dB / 21.0 dB
Output power (Down/Up) 19.8 dBm / 12.0 dBm

tolien · 8 Jan 2010 at 19:00

Phone them up and ask. It's enabled for stability reasons though the default is to have it disabled and automagically enable it if your connection becomes unstable.

Rofflay · 8 Jan 2010 at 20:18

yea if its unstable then interleaving can help.

your line stats look ok and i reckon u ccan get away with interleaving off.

my isp told me latency drops and sometimes streaming videos throughput can also increase.

GL tho

SMB30 · 8 Jan 2010 at 21:12

Interleaving basically resends every data packet, effectively doubling your ping and halving your download bandwidth.

tolien · 8 Jan 2010 at 21:50

SMB30 said:
Interleaving basically resends every data packet, effectively doubling your ping and halving your download bandwidth.

No it does not (any of those points).

Rroff · 8 Jan 2010 at 22:31

Interleaving uses extra error correction which increases ping time - it does decrease bandwidth in some cases... but nothing like half... prolly not even 10% less throughput. Tho if you have extremely heavy packetloss you will see a massive speed dip.

SMB30 · 9 Jan 2010 at 00:19

Funny, most people have around 50% with interleaving.

Just in my experience anyways, not saying your wrong!

Rroff · 9 Jan 2010 at 00:22

Thats probably because their lines are extremely noisey pulling down the sync speed they get with the appropriate SNR target.

tolien · 9 Jan 2010 at 00:54

50% of what though? If the connection's unstable or seeing high packet loss, it's 50% of nothing at all.
As Rroff suggested, it probably comes with an increased target SNR margin to improve stability yet more.

Mattus · 9 Jan 2010 at 03:42

SMB30 said:
Funny, most people have around 50% with interleaving.

That isn't true at all. If you want to read about how interleaving works, you can read here.

lemzip · 9 Jan 2010 at 11:41

Mattus said:
That isn't true at all. If you want to read about how interleaving works, you can read here.

Yep, like you have said he is totally wrong. Interleaved does not resend the packets and half your download bandwidth.

Suggest you read up on how ADSL technology works including the different modes.

Best way OP is to ring your ISP. BT i am unsure how flexable they are with changing modes but im sure they will do it if they look at the line stats.