Toob - trying to make sense of the BQM chart

I have just switched to Toob "1Gbps up&down" symmetric, I got a static IP and I have been monitoring with BQM since I got connected. On the 12th Dec specifically, I started to experience constant high latency and occasional packet loss. What you see here in the link is constant behaviour throughout the 24h:

BQM-24-12-25

I'm not sure what I'm reading in it, really. If I look at the chart it's a battlefield, however since I have systems in other countries (still monitored with BQM and with no issues), I'm using on each site mtr towards my static IP address in the UK. SO I'm monitoring it from UK, Belgium and Italy.

Long story short, I overall experience no packet loss via mtr. From Belgium (max 64ms) and Italy (max 48ms), which is very good as "a worst" recorded in a long period. However, from my UK site (Virgin Media) I do see maximum latency of around 154ms which is very close to that BQM reports.

Belgium -> Toob
https://snipboard.io/MzZ4HU.jpg

Italy -> Toob
https://snipboard.io/NgSVrR.jpg

Uk Vigin Media -> Toob
https://snipboard.io/5vAuCr.jpg

Please note the last column StDev (Standard Deviation) which represents the deviation in ms fro mthe median, in all 3 cases is extremely low and suggests the high latency packets might be very few overall.


So, what am I missing here? Is this a UK peering issue?

Edited by rs232 (Wed 24-Dec-25 08:02:45)

After finally talking to a 3rd line support at Toob, they confirmed that any CGNAT provider (that's when they assign you a 100.X.X.X IP address per se), even if you have a static IP added on top, will suffer from ICMP issues.

Essentially they push ICMP in the QoS best effort which make it the first to suffer in case of congestion.


In this sense: is there any other way to monitor my Internet connection? Can the poller be modified to use traceroute with udp port unreachable messages instead?

A static on CGNAT might be slightly more useful than a chocolate teapot. Toob do ipv6, apparently. This would be the best way to go.

In reply to a post by DFScale:

A static on CGNAT might be slightly more useful than a chocolate teapot. Toob do ipv6, apparently. This would be the best way to go.

I do have a static IPv4 address (and an IPv6 too), but IP addressing is not the issue here!

ICMP left in the best-effort QoS class on their side (or on the BGP peering with other carriers) almost intentionally generate delays & drops, so an ICMP based tool like the BQM monitoring tool is not working with these providers (CityFiber network)

In reply to a post by DFScale:

A static on CGNAT might be slightly more useful than a chocolate teapot. Toob do ipv6, apparently. This would be the best way to go.

Worth noting IPv6 routing may differ from IPv4.. Still it's the correct answer.

seb