Turning off interleaving on FTTC

rat7

Hello, is turning off interleaving possible on a FTTC connection? Currently using Digiweb as my internet provider. I'm guessing it takes ~19ms for me to connect to the cabinet/exchange after doing a tracert to a certain IP address.

Screenshot: i[dot]imgur[dot]com/KFpeli3.png

tsue921i8wljb3

The second hop is a Digiweb IP so you're reaching the cabinet before this but it's not being shown in the traceroute. I don't think there is much you can do. I think it's a Digiweb issue. They have poor pings on FTTH connections also when compared with other providers.

ED E

For easy reference:






Im not sure you're correct Navi, arent Digi using PPPoE still? If so theres a logical tunnel between home gateway and BRAS meaning that hop can only be his gateway (which matches sub 1ms). First hop is Thurles, probably DW's POP for the area.




40ms isnt that bad, dont be blaming it for your crappy LoL performance Rat.

tsue921i8wljb3

Sorry, I think I may have caused some confusion. When I said second hop I was referring to the hop from 192.168.178.1 to 83.147.159.199 . I was counting the first hop as the one from the user's machine to their router/gateway.

I was informing rat7 that 83.147.159.199 was not the exchange/cabinet as they seemed to think it was but in fact was somewhere in the Digiweb network.


I'd be interested to see some other VDSL ping times to 104.160.141.3 as I may be doing Digiweb a disservice but I remember at least one user in the FTTH thread complaining that their pings were significantly longer on Digiweb than with other operators.

For reference on an eir FTTH line I get 19ms to 104.160.141.3 but that is not a fair comparison with VDSL.

Simi

29ms using Vodafone FTTC

rat7

ED E wrote: »

40ms isnt that bad, dont be blaming it for your crappy LoL performance Rat.

The problem is that someone living 800m away from has a FTTH connection available, meaning they get around 22ms to the servers (not counting the +7ms the game adds on itself). I am looking for any solution that would let me get rid of as much latency as possible, hence why I made a post about interleaving/fast pass.

rat7

Simi wrote: »

29ms using Vodafone FTTC

Can I see the full tracert and may I know what town you live in?

Gonzo

is this server located in the UK?

getting 18ms to the server here with Eir.

Tracing route to 104.160.141.3 over a maximum of 30 hops

1 <1 ms <1 ms <1 ms 192.168.1.254
2 5 ms 1 ms 1 ms 95-45-144-1-dynamic.agg2.dsn.bdt-fng.eircom.net [95.45.144.1]
3 2 ms 1 ms 1 ms lag-19.pe1.fng.bdt-fng.eircom.net [86.43.12.9]
4 2 ms 2 ms 2 ms lag-106-coreb-srl-pe1-fng.coreb.srl.core.eircom.net [86.43.9.178]
5 7 ms 2 ms 2 ms eth-trunk1.hcore1.srl.core.eircom.net [83.174.185.7]
6 2 ms 2 ms 2 ms lag-10-br1-csg-hcore1-srl.br1.csg.border.eircom.net [86.43.10.161]
7 3 ms 2 ms 2 ms be5608.rcr21.dub01.atlas.cogentco.com [149.6.5.129]
8 11 ms 11 ms 11 ms be2526.ccr51.lhr01.atlas.cogentco.com [154.54.39.13]
9 12 ms 12 ms 11 ms be3487.ccr41.lon13.atlas.cogentco.com [154.54.60.5]
10 12 ms 12 ms 12 ms be2868.ccr21.lon01.atlas.cogentco.com [154.54.57.154]
11 12 ms 12 ms 12 ms level3.lon01.atlas.cogentco.com [130.117.14.134]
12 * * * Request timed out.
13 18 ms 18 ms 18 ms 213.19.195.234
14 18 ms 18 ms 18 ms 104.160.141.3

Trace complete.

ED E

Amsterdam.


Riot spend quite a bit of cash to put network borders around the place so that traffic into their network can be treated with higher priority than it otherwise would be.

Gonzo

I think Eir can remove interleaving on request or at least they used to be able to. I got it removed over a decade ago when I was on ADSL and it shaved about 15ms off my ping. I dunno if they do it now for their VDSL products.

ED E

Eir use ID 8 and INP 2 (or at least they used to). Thats represents a small delay. The Interleaving is about 0.3ms according to Juniper while the INP of 2 is about 8ms. Lets round up to 9ms.

Unless you're a 16yo Korean its insignificant.

rat7

ED E wrote: »

Eir use ID 8 and INP 2 (or at least they used to). Thats represents a small delay. The Interleaving is about 0.3ms according to Juniper while the INP of 2 is about 8ms. Lets round up to 9ms.

Unless you're a 16yo Korean its insignificant.

If there's no difference in ping between FTTH and FTTC then why do I get additional ~19ms of ping when connecting to anything?

MBSnr

Marcus Rancid Rock wrote: »

Sorry, I think I may have caused some confusion. When I said second hop I was referring to the hop from 192.168.178.1 to 83.147.159.199 . I was counting the first hop as the one from the user's machine to their router/gateway.

I was informing rat7 that 83.147.159.199 was not the exchange/cabinet as they seemed to think it was but in fact was somewhere in the Digiweb network.


I'd be interested to see some other VDSL ping times to 104.160.141.3 as I may be doing Digiweb a disservice but I remember at least one user in the FTTH thread complaining that their pings were significantly longer on Digiweb than with other operators.

For reference on an eir FTTH line I get 19ms to 104.160.141.3 but that is not a fair comparison with VDSL.

In fairness I wasn't complaining . Just something I'd noticed compared to those on Eir. Ping times are around 15-20ms with Digiweb FTTH. Seems traffic is routed to Dublin and back, even if I do a speedtest to a local Galway server such as Airwire.

[One thing I've noticed with Digiweb is their DNS servers don't seem to resolve as quickly as others. I see a lag in the browser while their DNS server is being queried before the page loads. Change it to Google's DNS and the page loads immediately, even hours later when the DNS cache has been cleared.]

editorsean

Trace route with an Eir FTTC connection in Ballybofey. According to the router, both the upstream and downstream interleave depth is "None".

1 1 ms <1 ms <1 ms 192.168.1.254
2 5 ms 6 ms 7 ms 86-44-224-1-dynamic.agg2.bof.bge-rtd.eircom.net [86.44.224.1]
3 6 ms 6 ms 6 ms lag-13.pe1.bge.bge-rtd.eircom.net [86.43.13.109]
4 10 ms 10 ms 10 ms lag-110-corea-bdt-pe1-bge.corea.bdt.core.eircom.net [83.174.184.80]
5 15 ms 10 ms 12 ms eth-trunk0.hcore1.bdt.core.eircom.net [83.174.185.1]
6 10 ms 10 ms 10 ms lag-50-br1-csg-hcore1-bdt.br1.csg.border.eircom.net [86.43.10.163]
7 10 ms 10 ms 10 ms be5608.rcr21.dub01.atlas.cogentco.com [149.6.5.129]
8 19 ms 18 ms 18 ms be2527.ccr52.lhr01.atlas.cogentco.com [154.54.37.245]
9 21 ms 21 ms 21 ms be3488.ccr42.lon13.atlas.cogentco.com [154.54.60.13]
10 21 ms 21 ms 21 ms be2869.ccr22.lon01.atlas.cogentco.com [154.54.57.162]
11 * 20 ms 20 ms lag-3.ear2.London2.Level3.net [4.68.72.185]
12 * * * Request timed out.
13 * * * Request timed out.
14 27 ms 27 ms 27 ms 104.160.141.3

Ping time to boards.ie is 10ms and to 8.8.8.8 is 12ms.

rat7

editorsean wrote: »

Trace route with an Eir FTTC connection in Ballybofey. According to the router, both the upstream and downstream interleave depth is "None".

1 1 ms <1 ms <1 ms 192.168.1.254
2 5 ms 6 ms 7 ms 86-44-224-1-dynamic.agg2.bof.bge-rtd.eircom.net [86.44.224.1]
3 6 ms 6 ms 6 ms lag-13.pe1.bge.bge-rtd.eircom.net [86.43.13.109]
4 10 ms 10 ms 10 ms lag-110-corea-bdt-pe1-bge.corea.bdt.core.eircom.net [83.174.184.80]
5 15 ms 10 ms 12 ms eth-trunk0.hcore1.bdt.core.eircom.net [83.174.185.1]
6 10 ms 10 ms 10 ms lag-50-br1-csg-hcore1-bdt.br1.csg.border.eircom.net [86.43.10.163]
7 10 ms 10 ms 10 ms be5608.rcr21.dub01.atlas.cogentco.com [149.6.5.129]
8 19 ms 18 ms 18 ms be2527.ccr52.lhr01.atlas.cogentco.com [154.54.37.245]
9 21 ms 21 ms 21 ms be3488.ccr42.lon13.atlas.cogentco.com [154.54.60.13]
10 21 ms 21 ms 21 ms be2869.ccr22.lon01.atlas.cogentco.com [154.54.57.162]
11 * 20 ms 20 ms lag-3.ear2.London2.Level3.net [4.68.72.185]
12 * * * Request timed out.
13 * * * Request timed out.
14 27 ms 27 ms 27 ms 104.160.141.3

Ping time to boards.ie is 10ms and to 8.8.8.8 is 12ms.

I really appreciate the tracert you did. If Digiweb is unable to turn off interleaving completely, I'm most likely going to switch to Eir with a hope of getting similar results as yours.

Can anyone using Vodafone or something else do the tracert aswell? Will be very grateful for that, as I am looking to get the best latency I can possibly acquire.

rat7

There are 2 unconnected cables near my house, both on poles that provide the FTTC connection to a few houses nearby.

First pole, the one I'm currently using:
https://i.imgur.com/83oKtLe.jpg

Second pole, not too far away from my house:
https://i.imgur.com/O025o2D.jpg

Are these fibre cables, which are not connected to black distribution boxes(?) yet? Could this be a sign of planned FTTH installations in the future?


Edit: here's a more clear picture of a similar pole with a similar configuration: https://i.imgur.com/WdTvtqa.jpg

tsue921i8wljb3

rat7 wrote: »

There are 2 unconnected cables near my house, both on poles that provide the FTTC connection to a few houses nearby.

First pole, the one I'm currently using:
https://i.imgur.com/83oKtLe.jpg

Second pole, not too far away from my house:
https://i.imgur.com/O025o2D.jpg

Are these fibre cables, which are not connected to black distribution boxes(?) yet? Could this be a sign of planned FTTH installations in the future?


Edit: here's a more clear picture of a similar pole with a similar configuration: https://i.imgur.com/WdTvtqa.jpg

It's quite possible. The first image looks like the ducting they use for fibre cables while the last two images could be fibre cable or a different type of duct. If you can get close to them there are usually markings on the cable and duct that would confirm.

rat7

Marcus Rancid Rock wrote: »

If you can get close to them there are usually markings on the cable and duct that would confirm.

What markings should I look for?

tsue921i8wljb3

rat7 wrote: »

What markings should I look for?

Just post what's written on the cable or duct and I'll confirm one way or the other.

rat7

Marcus Rancid Rock wrote: »

Just post what's written on the cable or duct and I'll confirm one way or the other.

I don't think there was anything written on the cable, I'll check it again tomorrow.

rat7

Marcus Rancid Rock wrote: »

Just post what's written on the cable or duct and I'll confirm one way or the other.

The cable in the third picture says Optic Fibre Cable.

tsue921i8wljb3

rat7 wrote: »

The cable in the third picture says Optic Fibre Cable.

You have your answer then. You said someone 800m from you has FTTH. Are you on the edge of a town/village?

rat7

Marcus Rancid Rock wrote: »

You have your answer then. You said someone 800m from you has FTTH. Are you on the edge of a town/village?

Yes, pretty much.

tsue921i8wljb3

rat7 wrote: »

Yes, pretty much.

The only danger is that the fibre is not destined for your home but for the premises further out of the town. Keep an eye on the build progress and check your Eircode regularly on:

http://www.airwire.ie/avai

rat7

Marcus Rancid Rock wrote: »

The only danger is that the fibre is not destined for your home but for the premises further out of the town. Keep an eye on the build progress and check your Eircode regularly on:

http://www.airwire.ie/avai

One of the pictures I sent you has the fibre cable on the pole I'm currently using for FTTC. Could this mean an upgrade is happening soon?

tsue921i8wljb3

rat7 wrote: »

One of the pictures I sent you has the fibre cable on the pole I'm currently using for FTTC. Could this mean an upgrade is happening soon?

It could be a month, it could be six months, it could be a year or more. There is no way of knowing unfortunately.

rat7

Can anyone tell me which provider has the lowest latency times? Digiweb still haven't solved the issue with interleaving, not to mention their link to London has increased latency now for unknown reasons. Thanks in advance.

ED E

The issue with DW isnt interleaving, its their core topology/peering config.

Gonzo

rat7 wrote: »

Can anyone tell me which provider has the lowest latency times? Digiweb still haven't solved the issue with interleaving, not to mention their link to London has increased latency now for unknown reasons. Thanks in advance.

lowest pings in the country are probably Eir and Airwire fibre products. Certainly not Sky or Imagine. I didn't realize that Digiweb had higher pings till this thread. Vodafone and Virgin have generally good pings too.

rat7

Gonzo wrote: »

lowest pings in the country are probably Eir and Airwire fibre products. Certainly not Sky or Imagine. I didn't realize that Digiweb had higher pings till this thread. Vodafone and Virgin have generally good pings too.

Speaking of Airwire and Eir, which one should I choose?

Gonzo

rat7 wrote: »

Speaking of Airwire and Eir, which one should I choose?

Airwire are cheaper and have a better modem. If ping is everything to you, maybe Eir, but Eir's customer support is as poor as it gets and their modem isn't the best.

rat7

Update: 2 new cables got installed this morning, they both have a yellow label with a code on them. Does anyone know what the numbers stand for? All I can tell is that CDH means Carndonagh, which is the town I live in.

Photo of the cable, sorry for the blur, didn't see the screen while I was taking the photo.

tsue921i8wljb3

That is not a cable. It is a duct. You can tell by the yellow stripe and the gas block seal on the end (red plastic device). What will happen is they will blow fibre cable through that duct using compressed air. The numbers are just an identifier.

rat7

Marcus Rancid Rock wrote: »

That is not a cable. It is a duct. You can tell by the yellow stripe and the gas block seal on the end (red plastic device). What will happen is they will blow fibre cable through that duct using compressed air. The numbers are just an identifier.

Oh, I thought that was a cable, as there was "Optic Fibre Cable" written on it. Thanks for the clarification.

rat7

UPDATE:

2 months ago we switched to eir and the ping times did indeed reduce by ~19ms. It seems that we're also getting FTTH in 22-01-20 after the 20-12-19 update on Airwire's lookup service. Thanks everyone for the help earlier and have a nice Christmas.