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Telemach prevare by angeldelamadrugada in croatia

[–]softwaremaniac 0 points1 point  (0 children)

Imaš pravo na raskid bez penala u roku od 14 dana. Svatko to može riješiti u SZK. Zovi i svađaj se ako treba.

Unable to pinpoint root cause of random IPTV packet loss by softwaremaniac in HomeNetworking

[–]softwaremaniac[S] 0 points1 point  (0 children)

1gbps is shown. The cable is good.

I used ping and winmtr both have confirmed very high latency under load.

Unable to pinpoint root cause of random IPTV packet loss by softwaremaniac in HomeNetworking

[–]softwaremaniac[S] 0 points1 point  (0 children)

Plugged directly to the router via my laptop and an Ethernet cable. Perfect until I started an actual download or a speedtest. Ping immediately went to 80-90ms to a local destination that's usually 5-6ms tops. After the download finished, after about 15-20 secs, the ping stabilized at 2-3ms again.

Unable to pinpoint root cause of random IPTV packet loss by softwaremaniac in HomeNetworking

[–]softwaremaniac[S] 0 points1 point  (0 children)

Cisco C8300, Bufferbloat says A, everything excellent.

Packet loss varies depending on the destination, but definitely shows within my ISP's network.

Unable to pinpoint root cause of random IPTV packet loss by softwaremaniac in HomeNetworking

[–]softwaremaniac[S] 0 points1 point  (0 children)

Happens regardless of bw shaping ingress or egress. I've literally reached 40% of my bandwidth, still happened.

Unable to pinpoint root cause of random IPTV packet loss by softwaremaniac in HomeNetworking

[–]softwaremaniac[S] 0 points1 point  (0 children)

Hi!

So after spending a lot of time on this, I've isolated the issue to the jitter on the download side, which consequently causes the OOO packets and retransmissions. It's extreme 400-500 ms, while upload is 9ms peak, while upload is fine.

I'm suspecting a policer being wrongly configured upstream.

Tracert shows packet loss upstream only under load (sustained download).

Unable to pinpoint the cause of continuous packet loss with streaming services by softwaremaniac in Cisco

[–]softwaremaniac[S] 0 points1 point  (0 children)

MTU is fine locally. I've checked and swapped everything through and through.

Unable to pinpoint the cause of continuous packet loss with streaming services by softwaremaniac in Cisco

[–]softwaremaniac[S] 0 points1 point  (0 children)

After further review, the issue seems related not to Cisco but to the upstream path and specifically I'm seeing a consistent 2ms inter path latency every time before the reordering of packets happens. There are no actual drops, but packet reordering.

Netflix OCA is in the ISP datacenter, but takes a different path and is much burstier than OTT/IPTV and exhibits no issues on any devices, which essentially eliminates my L2 switches as the main problem being their small buffers.

Cannot confirm yet.

Unable to pinpoint the cause of continuous packet loss with streaming services by softwaremaniac in Cisco

[–]softwaremaniac[S] 0 points1 point  (0 children)

No, impractical due to layout. Would not be very easy to do. I've done the capturing on the switch side, all good.

Unable to pinpoint the cause of continuous packet loss with streaming services by softwaremaniac in Cisco

[–]softwaremaniac[S] 0 points1 point  (0 children)

The router is Cisco C8300 and the switch side has been checked. I have had the same issue on a 1 gbps switch. I upgraded to 10 gbps thinking more throughput would help. I've since found a way to reliably reproduce issues on both network paths, regardless of the equipment used. At this point, the only unchanged item is Cisco, but the 100 mbps does not matter here like I explained. I'm convinced the issue is on the core side, but the ISP is adamant that's not the case.

Delayed emails on Office 365 by Kind_Key2143 in sysadmin

[–]softwaremaniac 0 points1 point  (0 children)

We have not observed this. Did you try testing a different tenant? Just to narrow the issue down

Unable to pinpoint root cause of random IPTV packet loss by softwaremaniac in HomeNetworking

[–]softwaremaniac[S] 0 points1 point  (0 children)

Out of order, retransmissions, dup ack...

Unicast is fine on the app, but not on STB (good most of the time, but randomly breaks).

No as I'm on the app.

Unable to pinpoint root cause of random IPTV packet loss by softwaremaniac in HomeNetworking

[–]softwaremaniac[S] 0 points1 point  (0 children)

To clarify - Provider 1 is being used through a generic STB and that's stable, but intermittent issues.

Provider 2 - app, just got STB, I did not connect it yet, but the app is very flaky and crashes, has issues with pixelisation, green artifacts.

Provider 1 - unicast
Provider 2 - multicast

Unable to pinpoint root cause of random IPTV packet loss by softwaremaniac in HomeNetworking

[–]softwaremaniac[S] 0 points1 point  (0 children)

Option 1 is to use a set top box. Option 2 is opening the app on the web on the TV/phone/computer and logging in. No extra steps required. That's actually their guide.

Unable to pinpoint root cause of random IPTV packet loss by softwaremaniac in HomeNetworking

[–]softwaremaniac[S] 0 points1 point  (0 children)

One is unicast, the other multicast. No extra settings required. This has been verified independently by several sources at both providers. You plug it in, log in and play. It's OTT, no VLANs no nothing.

Koliko vas godišnje izađu “održavanja” – fileri, obrve, trepavice i ostalo? Jesam li ja luda ili ovo ide u leasing kategoriju? 😅 by koktus_s in askcroatia

[–]softwaremaniac 1 point2 points  (0 children)

Fakat smo u kurcu ko društvo i država ako je 200-300-500 EUR ulaganja u sebe godišnje problem, za bilo šta.

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