In reply to a post by F00tS0re:

I think the issue lies with the fact that SkyQ ethernet port is 100MB!

That would explain it too Your switch should be able to tell you whether the link has established at 100M or 1G.

Note: sometimes a bad cable or bent pin will force a 1G-capable link down to 100M. A 100M ethernet link only needs four wires (2 for TX, 2 for RX), whereas a 1G link needs all eight. The same problem occurs if you use a crossover cable instead of a straight-through cable.

Looks like there's 3 of us at a similar stage, I've had no mention of the audit in my Cerberus email updates but I did check BT & Zen and they are both offering Ultrafast FTTP now. So I assume it's just the commissioning stage for me now.

It's a shame you've got issues, hopefully it gets resolved quickly!

In reply to a post by candlerb:

Last time I checked, speedtest.net runs 6 streams concurrently, to the node with the lowest RTT.

Speedtest.net now offers you the option of single thread speedtests on pretty much all servers with a simple toggle switch. About time too...

single thread result for my connection
https://www.speedtest.net/result/8109427904.png

multi thread result
https://www.speedtest.net/result/8109433299.png

Edited by deleted (Wed 13-Mar-19 14:19:15)

Main Unifi Switch goes to a single port in lounge connected to an 8-port dumb switch (Netgear GS308)

1>Uplink
2>Sky
3>Smart TV
4>Sonos
5>Playstation
6>Home Cinema Amp
7>BluRay Player
8>Something else cos all the ports were full

But dumb switch doesn't show connection speed via LEDs, and uplink is 1Gbps. So I could plug/unplug and test but the internet seems to be convinced it is 100Mb port. Yeah should have ran 8 CAT5e to living room not 2. (especially as 1 is broken).

Dave

Very informative post.

Not so sure 1460 is a standard MTU though.

The OpenReach NGA network fully supports 1500 MTU.
It even supports 1500 MTU with PPPoE thanks to RFC4638.

My router is set to 1508 MTU which gives me 1500 MTU after PPP is stripped.

1472 bytes unfragmented after overheads.

Without RFC4638 the default MTU should be 1492 on PPPoE connections.

Yeah, hopefully it'll be resolved soon.

Regarding FTTP availability, mine also showed that prior to an audit being done so you may find that the audit is the next stage for your order.

In reply to a post by F00tS0re:

Main Unifi Switch goes to a single port in lounge connected to an 8-port dumb switch (Netgear GS308)

Ah shame. Treat yourself to a GS110TP. Nice switch, SNMP and fully managed (even a CLI if you enable it in the GUI, telnet to port 60000).

If you don't need the PoE and SFP ports, then the GS108Tv2 is a bit cheaper - and it can be powered *by* PoE.

In reply to a post by j0hn83:

Not so sure 1460 is a standard MTU though.

I omitted that detail. The formula uses the TCP MSS - this is the TCP segment size, i.e. the data payload without the headers. It's smaller than the MTU which is for the entire IP datagram.

If you have a standard IP MTU of 1500, then the TCP MSS will normally be either 1460 or 1448, depending on whether the TCP timestamp option is being used or not. (20 bytes for IP header, 20 bytes for TCP header, 12 bytes for timestamp option if present).

In reply to a post by candlerb:

In reply to a post by F00tS0re:

Main Unifi Switch goes to a single port in lounge connected to an 8-port dumb switch (Netgear GS308)

Ah shame. Treat yourself to a GS110TP. Nice switch, SNMP and fully managed (even a CLI if you enable it in the GUI, telnet to port 60000).

If you don't need the PoE and SFP ports, then the GS108Tv2 is a bit cheaper - and it can be powered *by* PoE.

I tried a NETGEAR GS108E-300UKS 8-Port Gigabit Smart Managed Plus Switch and it crapped out on STP with Sonos, trying to resolve led me to believe it was either impossible or not worth the hassle. I have thus kept the local switches as dumb as possible. Cheap and dumb is great, although PoE would be nice. I'll look again when it breaks in 25-years.

GS108E is a proper managed switch like the GS108Tv2 (despite the similar part number). I've never had any problems with STP on the latter - except that it's turned off by default.