Kitz Forum
Broadband Related => FTTC and FTTP Issues => Topic started by: spaace on May 31, 2019, 02:14:26 PM
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Hi all,
i noticed today my ping times (first hop) have jumped from 8ms to 18ms, router still says i am on fastpath/no interleaving (usually when interleaving has briefly been applied it is 16ms). It is rock solid 18ms (like it was rock solid 8ms). Can anyone shed any light on why this could be? it was fine last night when i went to bed and the connection has not dropped since then :(
update - neighbours on different ISP's pings are the same as mine was previously and clients on my ISP elsewhere in the country are similar to what they were before, it is like something has been applied to my line
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If you have access to in-depth stats - if you have a Broadcom-based device, stats usually provided over CLI - perhaps you could confirm what the "delay" figure for Bearer 0 is?
If you do not have any access to CLI (or no stats available there), then disconnect the PPP session and reconnect it - see if this changes the latency at all, and make a note of the first hop.
My thoughts are that it sounds like your provider is routing you to another one of their PoPs, which could be further away. A new PPP session may get you connected back to the other. Or it may be that you have some delay on your line from DLM intervention, in the worst case scenairo.
Which ISP is this?
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where would i find in depth stats? i am using a draytek 2860 router.
the issue is not routing to a different PoP, i have this PoP issue usually with them where a london server is 8ms and a manchester one is around 20ms, i just keep killing the PPP until i get the london server - currently london is around 18ms and manchester 30ms so everything is +10ms.
ISP is a company called voicehost, we use them for voip stuff for work so it is free. been really good up to this point!
by delay on the line do you mean interleaving or is there something else that can be applied that alters ping? my ES etc are very low (very rarely get any at all)
thanks for replying.
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You said it's the first hop. On its own that generally isn't important. Has the overall ping time to an external site also increased?
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yes, everything is +10ms than it was previously. If my ping to the first hop has increased wouldn't that mean anything beyond the first hop would increase? (eg if my first hop ping is 20ms i cant get a reply from say bbc.co.uk of anything under 20ms?)
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No, the values shown for intermediate hops show the ping time for each hop, but it's often the case that passthrough times are prioritised over ping times. For intermediate hops, it's the passthrough times which matter.
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ok thanks. in any case all pings are affected, both first hops and destinations are 10ms more than they were previously. Is there anything that can add ms delay other than interleaving?
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Hopefully someone else will answer that.
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If nothing changed on the line then a reroute in between your exchange and where you reach your ISP across a protection path causing higher latency. Kinda going the longer way around a ring to get to the same place.
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thanks for the reply. weirdly it slowly dropped after midnight back to normal.
Annoyingly i am stuck on a slower auth server which doubles my ping now - dropped the PPP a bunch of times but never get to the faster (london) ones, always manchester. Is there anything i can do to force its hand on where i auth?
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Ah. Zen are the ISP I guess?
Not aware of anything you can do to select an endpoint yourself.
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Ah. Zen are the ISP I guess?
ISP is a company called voicehost
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Yes no on Zen although on peeringDB Zen have a similar setup (4x london and 1x Manc). Voicehost have 2x London and 1x manc, guess it is just done on a load balancer so pointless continuously retrying as the manchester one is clearly under a much lesser load currently as i keep getting it!
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Zen bothers me too much since they're just routing all my traffic all the way to Manchester. They have the worst latency of virtually any ISP I've had previously because of that. What once was 10ms to London, 15ms to Amsterdam and 25ms to Nuremberg is now 25, 35 and 40 ms respectively. It may seem insignificant, but to me it's like a downgrade. If I had known, I would have gone elsewhere rather than have my traffic routed all the way up the country.
I would presume that it is load balanced, so trying over and over again probably won't yield any different results. In my case, I like how Zen Support told me to just keep getting a new PPP session until I get routed to London :lol:. Yeah, like I can do every time my connection goes down just so I can get good latency - and it's not even guaranteed, plus I've never had it so far. Should have gone with IDNet and forked out an extra £7.80 a month. Hopefully I can find a reason to leave and never return.
Anyway, sorry about that - kind of got sidetracked about my own issue. I don't think there is much that can be done. Additional latency is always a bit of a bummer, especially if you play or stream games, or have other latency-sensitive applications.
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idnet resell zen ;)
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Yeah bit of a pain. It's fine if you're where I am, not much difference, but certainly once you're much further south it makes more sense to go to London for most destinations.
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I have never been on zen, but the manchester issue kind off puts me off.
BT wholesale for me goes north before going south, although not as far as manchester, it adds about 5-8ms latency.
Same issue with the old c&w network, it isnt direct. Latency if I remember right is a bit higher than BT wholesale.
Never been on TTB network so cannot comment on that from my city.
Since sky have a POP in my city I get under 10ms latency to london on sky.
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glad im not the only one who feels the same. feel like a bit of a fool moaning about 10ms in the grand scheme of things but it does make a huge difference. i play competitive games at a high level across the whole of Europe, routing to manchester means my ping to UK servers is more than my ping to germany if i am routed via london - and when often playing on nl/de/dk/se servers it makes a big difference.
routed via london pings...
uk = 8ms
nl = 15ms
de = 17ms
dk = 27ms
se = 32ms
and manchester pings
uk = 21ms
nl = 28ms
de = 30ms
dk = 40ms
se = 45ms
basically makes playing se/dk unplayable for me (whilst it is playable it isn't vs players playing on 1-30ms)
i guess even if my isp wanted to help there is little they can do, i dont really know how it works but is it possible for them to route me me to london only?
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I wouldn't consider it "unplayable" even with enemies on a lower latency, but certainly a nuisance especially where competitive play is concerned. The thing such a hike in latency does for me is make my game streaming (from my PC) experience degrade because the input delay becomes more noticeable.
I don't think they will be able to do much since as you pretty much guessed before, it's load balanced. Probably a few other variables that might be at play here, too. All you can do with them is just ask.
I'd say you might have to look at moving provider if you want a better/consistent latency. I made the mistake of going in blind for Zen when it comes to their network topography. Given Plusnet, TalkTalk, Sky, AAISP (TTB?) and Pulse8 (TTB) have better latencies here than Zen, even with some of those services being provided on ADSLx(!), it's just a downgrade to my experience overall.
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idnet resell zen ;)
... and BTw and TTB
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I don't know if you've got any update for your latency increase, but Zen has resolved mine. I had single-thread speed issues all day, every day, and multi-thread was a bit inconsistent. After I mentioned (for the third time, probably) that I was being routed to Manchester and it was impacting my latency, they have told me I have been permanently routed to London which has reduced the latency to 12ms to London and has actually fixed the speed issues as well.
Interestingly enough, they also told me it was an error that I was being routed to Manchester anyway. Let's hope I don't end up back being routed that way - I do not want to see my latency and speeds impacted again.
Perhaps it might be worth asking if your ISP can change your routing as it may be possible.
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actually i spoke to the support guys at my isp, as i resell some stuff for them (voip, leased lines etc) they were extremely helpful. They advised rather the constantly redialling PPP to disable it for a minute or 2 so the routing cache doesnt just reconnect me to the same one, which seems to work.
They are also looking at putting a new login realm in place that only routes via london unless it failsover to manchester and moving me to it. thanks for following up.
uk pings now back to 8ms which is great :D