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Posts tagged #networknook

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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.

Read “What Actually Happened When We Turned On HTTP/3“ by The Speed Engineer on Medium: medium.com/@chopra.kant... #networknook

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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/rfc/rfc9308....

#networknook

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A p2p Vision for QUIC Using QUIC to achieve everything needed for NAT traversal, from address discovery to proxying UDP

seemann.io/posts/2024-1...

#networknook

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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/archive/id/d...

#networknook

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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/p/the-fast-p...

#networknook

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#networknook

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Exploiting Cross-Layer Vulnerabilities: Off-Path Attacks on the TCP/IP Protocol Suite – Communications of the ACM

cacm.acm.org/research/exp...

ICMP!

#networknook

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#networknook

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A (mostly) Unbiased Review of the Ultra Ethernet Specification We review the Ultra Ethernet Specification version 1.0.

Dive into Ultra Ethernet. Doesn't feel like Ethernet when it has transport layers... #ethernet #networknook #quic #tcp

medium.com/p/a-mostly-u...

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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/quic-restart... #networknook

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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.

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-...

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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

Networking and compilers. #networknook Read “If You Only Knew the Power of the Compiler!“ by Tom Herbert on Medium: medium.com/@tom_84912/i...

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#networknook

(so this shows up in the NetworkNook feed - bsky.app/profile/cove...)

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iroh less net work for networks

This is cool, application p2p via QUIC - www.iroh.computer #networknook

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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.

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...

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Dave Täht - Wikipedia

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%...

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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.

Read “ECMP and Source Routing and Multipath Tables — Oh my!“ by Tom Herbert on Medium: medium.com/@tom_84912/e... #networknook #internet

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Transmit Packet Steering and Queuing Disciplines We talk about affinity on send die including Transmit Packet Steering and Queuing Disciplines

Read “Transmit Packet Steering and Queuing Disciplines“ by Tom Herbert on Medium: medium.com/@tom_84912/t... #networknook #linux

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Active IP addresses over time

Active IP addresses over time

This shows the number of IP addresses (both #ipv4 and #ipv6) active in my home over roughly two days. 5 minute aggregation. It hovers around 70.

#networknook

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A little study on DSCP usage at ISPs that I did late last year.

#isp #networking #ipv4 #bufferbloat #networknook #qos

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Understanding Latency 3.0 Webinar 1
Understanding Latency 3.0 Webinar 1 YouTube video by Domos

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?...

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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.

Read “Byte Queue Limits: the unauthorized biography“ by Tom Herbert on Medium: medium.com/@tom_84912/b...

#networknook #bufferbloat

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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...

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Hardware FIFOs — Accelerator FIFOs edition We present the concepts and a design for “accelerator FIFOs” — the world’s fastest form of IPC for low level hardware components and CPUs!

Read “Hardware FIFOs — Accelerator FIFOs edition“ by Tom Herbert on Medium: medium.com/@tom_84912/h...

#networking #networknook

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Today I tweaked the algorithm for the Network Nook feed. A little less VPN and IPv6 (lots of people complain about IPv6 problems) #networknook

#internet #networking #routing

bsky.app/profile/cove...

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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

Another great article from Tom.

medium.com/@tom_84912/h...

#networking #networknook

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#networknook

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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.

Understanding Latency 3.0 has started for today's sessions.

#latency #networknook #bufferbloat

understandinglatency.com

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Quality of Outcome This document describes a new network quality framework named Quality of Outcome (QoO). The QoO framework is unique among network quality frameworks because it is designed to meet the needs of applica...

Magnus@Domos now discussing Quality of Outcome.

#latency #bufferbloat #networknook

datatracker.ietf.org/doc/draft-ie...

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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.

One hour until Understanding Latency 3.0 starts.

#networking #latency #networknook

understandinglatency.com

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