#networknook
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coverfire.com
This is cool, application p2p via QUIC - www.iroh.computer #networknook
iroh
less net work for networks
www.iroh.computer
April 16, 2025 at 3:26 AM
coverfire.com
#networknook

(so this shows up in the NetworkNook feed - bsky.app/profile/cove...)
jaz.sh Jaz @jaz.sh · May 3
Also now is probably a good time to plug that we have an open SRE role. Looking specifically for someone with recent bare metal experience and/or BGP and DC/Internet networking experience - jobs.gem.com/bluesky/am9i...

Fleet management and DC networking are places we could use some help!
Bluesky Jobs
Bluesky Jobs
jobs.gem.com
May 3, 2025 at 8:16 PM
telecom-terrorist.com
#networknook
July 10, 2025 at 12:24 PM
coverfire.com
medium.com/p/the-fast-p...

#networknook
The fast path/slow path mirage
Dividing processing into a fast path and slow path is a common design technique to optimize the common case —  we show it’s not all roses
medium.com
September 1, 2025 at 1:01 PM
coverfire.com
Back in December I participated in the Understanding Latency 3.0 online conference. My short talk presented a small study of DSCP usage at U.S. Regional Providers. Take away: It's almost all DSCP 0. #networknook #dscp #isp

youtu.be/hqCZdrXnKe8?...
Understanding Latency 3.0 Webinar 1
YouTube video by Domos
youtu.be
February 4, 2025 at 12:11 AM
coverfire.com
A little study on DSCP usage at ISPs that I did late last year.

#isp #networking #ipv4 #bufferbloat #networknook #qos
preseem.com Preseem @preseem.com · Feb 10
We recently investigated the prevalence of #DSCP marking in select US regional #ISPs using #Preseem, with an eye on opportunities to improve the subscriber experience. Read our latest blog to see what we found: preseem.com/2025/02/dscp... #NetworkManagement #QoE
February 10, 2025 at 7:22 PM
coverfire.com
Little Sunday experimentation... I've extended the #networknook feed algorithm to match all posts by @ietf.org and @irtf.org. It already matches any RFC URL in a post.

bsky.app/profile/cove...
January 12, 2025 at 10:24 PM
coverfire.com
Read “Transmit Packet Steering and Queuing Disciplines“ by Tom Herbert on Medium: medium.com/@tom_84912/t... #networknook #linux
Transmit Packet Steering and Queuing Disciplines
We talk about affinity on send die including Transmit Packet Steering and Queuing Disciplines
medium.com
March 6, 2025 at 6:47 PM
coverfire.com
Another great article from Tom.

medium.com/@tom_84912/h...

#networking #networknook
Hardware FIFOs — Device queues edition
We explore the wonder of device queues that are hardware FIFOs commonly used in devices like NICs to facilitate host-device communications
medium.com
January 2, 2025 at 3:34 PM
coverfire.com
Understanding Latency 3.0 has started for today's sessions.

#latency #networknook #bufferbloat

understandinglatency.com
Understanding Latency
The biggest expert-led knowledge sharing event on network latency, latency management, L4S, and low-latency networking. All online and at no cost.
understandinglatency.com
December 10, 2024 at 3:07 PM
coverfire.com
Read “Byte Queue Limits: the unauthorized biography“ by Tom Herbert on Medium: medium.com/@tom_84912/b...

#networknook #bufferbloat
Byte Queue Limits: the unauthorized biography
Byte Queue Limits is one of the tools in the fight against bufferbloat. It determines precise limits one device queues to minimize queuing.
medium.com
January 14, 2025 at 12:40 AM
coverfire.com
Networking and compilers. #networknook Read “If You Only Knew the Power of the Compiler!“ by Tom Herbert on Medium: medium.com/@tom_84912/i...
If You Only Knew the Power of the Compiler!
I've been saying "If you want to work on networking tomorrow, learn compilers today"! Let's look at why this is so
medium.com
May 6, 2025 at 2:41 AM
coverfire.com
This is chat we had about working latency, internet experience and the future of latency on the internet with Jason from Comcast. L4S and NQB. @preseem.com #networknook @corporate.comcast.com

preseem.com/2023/08/l4s-...
L4S, Working Latency & the Future of the Internet | Preseem
Our experts recently spoke with Jason Livingood from Comcast about L4S, working latency, congestion control, and more. Read our recap or check out the episode.
preseem.com
May 15, 2025 at 1:18 PM
coverfire.com
Discussion of algorithms for longest prefix matching for IP routing. Great article. #networknook

blog.nlnetlabs.nl/donkeys-mule...
Of Donkeys, Mules & Horses
A quest for the perfect data-structure to store and retrieve a full table of IP Prefixes, while maintaining the hierarchical relations.
blog.nlnetlabs.nl
June 16, 2026 at 2:35 AM
coverfire.com
Read “What Actually Happened When We Turned On HTTP/3“ by The Speed Engineer on Medium: medium.com/@chopra.kant... #networknook
What Actually Happened When We Turned On HTTP/3
We dropped mobile p99 latency by 40%. Then our CDN stopped talking to half our users.
medium.com
December 17, 2025 at 12:13 AM
coverfire.com
www.rfc-editor.org/rfc/rfc9308....

#networknook
RFC 9308: Applicability of the QUIC Transport Protocol
This document discusses the applicability of the QUIC transport protocol, focusing on caveats impacting application protocol development and deployment over QUIC. Its intended audience is designers of...
www.rfc-editor.org
November 8, 2025 at 3:31 PM
coverfire.com
seemann.io/posts/2024-1...

#networknook
A p2p Vision for QUIC
Using QUIC to achieve everything needed for NAT traversal, from address discovery to proxying UDP
seemann.io
November 6, 2025 at 6:09 PM
coverfire.com
www.ietf.org/archive/id/d...

#networknook
Responsiveness under Working Conditions
For many years, a lack of responsiveness, variously called lag, latency, or bufferbloat, has been recognized as an unfortunate, but common, symptom in today's networks. Even after a decade of work on ...
www.ietf.org
October 13, 2025 at 7:58 PM
coverfire.com
#networknook
July 25, 2025 at 6:40 PM
coverfire.com
cacm.acm.org/research/exp...

ICMP!

#networknook
Exploiting Cross-Layer Vulnerabilities: Off-Path Attacks on the TCP/IP Protocol Suite – Communications of the ACM
cacm.acm.org
July 18, 2025 at 2:57 PM
coverfire.com
Dive into Ultra Ethernet. Doesn't feel like Ethernet when it has transport layers... #ethernet #networknook #quic #tcp

medium.com/p/a-mostly-u...
A (mostly) Unbiased Review of the Ultra Ethernet Specification
We review the Ultra Ethernet Specification version 1.0.
medium.com
July 1, 2025 at 2:45 PM
coverfire.com
blog.cloudflare.com/quic-restart... #networknook
QUIC restarts, slow problems: udpgrm to the rescue
udpgrm is a lightweight daemon for graceful restarts of UDP servers. It leverages SO_REUSEPORT and eBPF to route new and existing flows to the correct server instance. Designed for modern protocols li...
blog.cloudflare.com
May 18, 2025 at 7:27 PM
coverfire.com
I was curious what the traffic in my home looked like. Things like the # of active IPs, flow count, packet rate etc. This small investigation found a little surpise... #isp #networknook #internet

preseem.com/2025/02/netw...
Network Flows in a Typical Home – Preseem
Read our investigation into the number of flows, transport protocol usage, IP count, and packet rate, on a typical home network.
preseem.com
April 10, 2025 at 11:18 PM
coverfire.com
I'm sad to hear Dave Täht passed away. We had many good chats about #bufferfloat in private and on podcasts over the years going way back to ~2009. #networknook

en.wikipedia.org/wiki/Dave_T%...
Dave Täht - Wikipedia
en.wikipedia.org
April 2, 2025 at 2:28 AM
coverfire.com
Read “ECMP and Source Routing and Multipath Tables — Oh my!“ by Tom Herbert on Medium: medium.com/@tom_84912/e... #networknook #internet
ECMP and Source Routing and Multipath Tables — Oh my!
We talk about Equal Cost Multipath and how that facilitates various forms of host source routing. We introduce Multipath Tables as well.
medium.com
March 22, 2025 at 2:21 AM