Thank you @toke for shipping a copy! The cover image is awesome 👏 #bufferbloat

I've been using #OPNsense for years (and before that, #pfsense) but its #IPv6 support is so buggy I think I'll have to switch. Suggestions for what to switch to? #OpenWRT is my leading contender due to its #CAKE anti- #bufferbloat support.

#OPNsense bugs: IPv6 NAT uses the wrong IP address after WAN gets a new one https://github.com/opnsense/core/issues/6530 , same with NPTv6 https://github.com/opnsense/core/issues/5284 . Not IPv6, but it uses the wrong MAC sometimes https://github.com/opnsense/core/issues/6512 though I was able to work around that.

最近把家裡的網路升級到300M/100M，但是跑測速只有150M/100M這樣的數字，原因是路由器的性能不足。[1]

我用的路由器是 #Ubiquiti 的 #EdgerouterX（ER-X），韌體改成 #openwrt 。這台設備如果沒有開啟Hardware flow offloading（所謂的NAT加速）就只能跑到這種速度，但是開啟就無法使用SQM OoS（ #Bufferbloat 對策[2]），這會導致在頻寬滿載時其他的設備都無法正常使用外部網路。

因此我那了之前買的UDOO x86加上一個USB3的網卡測試，即使開啟SQM也能應付，但說不上輕鬆就是，因為有兩個核心接近滿載狀態。可惜因為USB網卡有問題會不定期斷線，還是無法替換ER-X。

只好上淘寶下訂一台NanoPi R5S，雖然目前網路上的測試看來還無法徹底發揮2.5GbE網路的性能，但是要應付我家的網路是綽綽有餘。

[1] https://forum.openwrt.org/t/so-you-have-500mbps-1gbps-fiber-and-need-a-router-read-this-first/90305
[2] https://www.bufferbloat.net

最近把家裡的網路升級到300M/100M，但是跑測速只有150M/100M這樣的數字，原因是路由器的性能不足。[1]

我用的路由器是 #Ubiquiti 的 #EdgerouterX（ER-X），韌體改成 #openwrt 。這台設備如果沒有開啟Hardware flow offloading（所謂的NAT加速）就只能跑到這種速度，但是開啟就無法使用SQM OoS（ #Bufferbloat 對策[2]），這會導致在頻寬滿載時其他的設備都無法正常使用外部網路。

因此我那了之前買的UDOO x86加上一個USB3的網卡測試，即使開啟SQM也能應付，但說不上輕鬆就是，因為有兩個核心接近滿載狀態。可惜因為USB網卡有問題會不定期斷線，還是無法替換ER-X。

只好上淘寶下訂一台NanoPi R5S，雖然目前網路上的測試看來還無法徹底發揮2.5GbE網路的性能，但是要應付我家的網路是綽綽有餘。

[1] https://forum.openwrt.org/t/so-you-have-500mbps-1gbps-fiber-and-need-a-router-read-this-first/90305
[2] https://www.bufferbloat.net

@doachs

would be interested to see what your results are on the waveform bufferbloat test on a typical wired desktop on your school's network https://www.waveform.com/tools/bufferbloat

#ipv6 and #bufferbloat mitigation are the chocolate and peanut butter of networking.

My sister has #bufferbloat and it's affecting her ability to do work via video meetings. I'm sending her a dual LAN mini PC to act as her router (and a wifi AP separately). I want to install #Debian on the mini PC. Is there a good bootable USB image that just automatically does a basic install? My sister is not tech tolerant and won't have a good time walking through install over phone.

Learnt about Bufferbloat while looking up HTTP/3 improvements. This is easily one of the most entertaining yet insightful talks that I have watched recently. Kudos to Dave Taht 👏 #QUIC #HTTP3 #BufferBloat

https://www.youtube.com/watch?v=ZeCIbCzGY6k

#introduction when the database crashed I lost some followers, but because I hadn't backed up my account yet, I am not sure who they all are. As an extended introduction I'll tag some common topics I like to discuss, maybe people will see those.
#bayes #bayesian #statistics #appliedmathematics #ipv6 #bufferbloat #quarto #openscience #agentbasedmodels #julialang #economics #biology #molecularbiology #ecology #forensics #engineering

@timbray #bufferbloat was an issue discovered and documented years ago in consumer routers, but it hasn't gone anywhere. It CAN be mitigated in downstream devices but the real fix is making sure the border router doesn't cause it.

@toke
Thanks toke for all the great #bufferbloat help. And cute dog.

@clolsonus I remember when we were delighted that an entire campus of 4000 people went from a leased line with a 19.2kbps modem to a T1 with 1.544mbps which seemed like almost infinite bandwidth by comparison. sigh

#BufferBloat is not as pervasive a problem as when Dave Täht started publicizing it, but it doesn't surprise me that it persists on ridiculously asymmetric links.

Do you rent your modem or did you buy one?

Interesting article about #BufferBloat on #HackADay today! Since I have an OpenWRT router, I followed their steps and got my latency under load down!

Originally, latency under load increased by 150%, now it's down to around 30%. You're able to tune it so that increase is even lower, but it'll bite more into your download speed. I was happy downloading at 10.8 Mbps rather than 11.7.

Original: https://www.waveform.com/tools/bufferbloat?test-id=9d31aa67-4c91-482b-804e-b65a67a34cfc
After CAKE and tuning: https://www.waveform.com/tools/bufferbloat?test-id=263adfd1-d5ce-42e1-8e78-444af0b73f74
Article: https://hackaday.com/2022/08/18/bufferbloat-the-internet-and-how-to-fix-it/

Bufferbloat, the Internet, and How to Fix It - There’s a dreaded disease that’s plagued Internet Service Providers for years. OK,... - https://hackaday.com/2022/08/18/bufferbloat-the-internet-and-how-to-fix-it/ #internethacks #networkhacks #bufferbloat #bandwidth #featured #interest #internet #latency #openwrt #tcp/ip #tcp

@orionwl I wonder how much is attributable to the connection (HW) and how much to the router firmware (SW).

I've been learning about #OpenWrt and #BufferBloat seems very relevant for latency.

@orionwl I wonder how much is attributable to the connection (HW) and how much to the router firmware (SW).

I've been learning about #OpenWrt and #BufferBloat seems very relevant for latency.

Tune in to our new episode! @katherined and @dsearls talk to Dave Taht about #bufferbloat, #latency, and the issues plaguing our #networks.
Visit the following link for full episode - https://www.reality2cast.com/85

#StarLink #Privacy #Technology #Podcast #newEpisode

Also on the subject of #bufferbloat, check out this company and their routers that help solve bufferbloat with minimal interaction (or understanding) on the end-user’s part: https://evenroute.com/ And for more advanced users, I definitely recommend #SQM in #OpenWrt. Check it out!

If you’re not familiar with #bufferbloat and what it means for your internet connection, you should look it up. Dave Täht has spent many years educating others on bufferbloat. Check out this post and video for some great info: https://www.patreon.com/posts/framing-last-on-28743116

Here's what I worked on for my #weekendproject! https://github.com/Fail-Safe/netdata-chart-sqm

Testing and feedback is very welcome!

#OpenWrt #sqm #bufferbloat #netdata #weekend #code

If you are already using #OpenWrt, addressing #bufferbloat on your internet connection is fairly quick and straightforward with #SQM! https://openwrt.org/docs/guide-user/network/traffic-shaping/sqm

If you have enough horsepower in your router, I recommend #CAKE. CAKE or not, SQM will quickly help you see benefits that will make your internet connection feel like new!