TC2 and TC1 can be very sensitive to arguably overzealous policing, requiring tight shaping at the NNI (POI) and attention to Ethernet buffering, burst limits and inter-packet gaps or packets will be dropped. Usually voice traffic on TC1 doesn't tickle the policing though as the VoIP CODEC naturally leaves good spaces between the packets. Data packets at TC2 different story. Check packet-loss during the throughput tests, in each direction independently if you can - overzealous inbound policing or inadequate outbound shaping will result in packets being tossed due to micro-spikes in traffic, even when the long-term average should be below the policing threshold - and that might be between your upstream and the NBN kit at the POI, than between you and your upstream network.
Paul. On 13/06/2018 7:51 PM, David Fowler wrote: > > Hi Brad > > > > Sounds similar to our issue. I’ve sent umpteen graphs and iPerf results to > Vocus. > > > > Can I ask what the latency is on those links for you? Vocus are telling us > it’s the > latency at ~45ms that is causing the issues. Various throughput calculators > are > giving me anywhere between 8-9.5Mbps of bandwidth, yet we seem to be only > able to > achieve around half. > > > > Cheers > > > > David. > > > > > > *From: *Brad McEvoy <brad.mce...@overthewire.com.au> > *Date: *Wednesday, 13 June 2018 at 17:32 > *To: *David Fowler <david.fow...@datacom.com.au> > *Cc: *"email@example.com" <firstname.lastname@example.org> > *Subject: *Re: [AusNOG] NBN FTTN TC2 Services WA North West > > > > Hi David, > > > > I had a similar problem in the Wollongong area. We connected up the first TC2 > in > that area and when we tested the service, we never got the order speed. I > logged a > fault with OPTUS and sent them traffic graphs and test results. A day or two > later > they fixed the issue, they hadn't provisioned or ordered the back haul > correctly. > > > > > Brad McEvoy > Senior Network Engineer > > > > Image removed by sender. Over the Wire <http://www.overthewire.com.au> > > > > Over the Wire Holdings Ltd (ASX:OTW) > > GPO Box 1807 Brisbane, QLD, 4001, Australia > > Level 9, 33 York Street, Sydney, NSW, 2000 > > > > > > On 13 June 2018 at 18:15, David Fowler <david.fow...@datacom.com.au > <mailto:david.fow...@datacom.com.au>> wrote: > > Hi Folks > > > > Is anyone else running NBN TC2 only services? Having issues with services > running in the North West that are all backhauled to the Geraldton POI. > > > > Latency doesn’t seem extreme for the distance, usually ~45ms, but on say > a 10Mb > TC2 service, we’re only achieving ~5.5Mbps. FTTN services connected to > other WA > POIs, tops ~18ms, but seem to run OK. > > > > Any ideas? > > > > Cheers > > > > David. > > > > *Confidentiality and Privilege Notice* > > This document is intended solely for the named addressee. The information > contained in the pages is confidential and contains legally privileged > information. If you are not the addressee indicated in this message or > responsible for delivery of the message to such person, you may not copy > or > deliver this message to anyone, and you should destroy this message and > kindly > notify the sender by reply email. Confidentiality and legal privilege are > not > waived or lost by reason of mistaken delivery to you. > > > _______________________________________________ > AusNOG mailing list > AusNOG@lists.ausnog.net <mailto:AusNOG@lists.ausnog.net> > http://lists.ausnog.net/mailman/listinfo/ausnog > > > > > > _______________________________________________ > AusNOG mailing list > AusNOG@lists.ausnog.net > http://lists.ausnog.net/mailman/listinfo/ausnog
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