#PDF #documentation about the new 102.4Tbps #Broadcom #networking switch (2 page product brief, not a datasheet) #electronics #hardware
on 02025-10-09“#Broadcom Ships Tomahawk 6: World’s First 102.4 Tbps Switch” #press-release #networking
on 02025-10-09But the #Ethernet preamble, SFD (start of frame delimiter), and FCS (frame check sequence) are not counted in the 64-byte minimum for regular and 100BaseT Ethernet, so it’s actually 72 bytes. #networking
on 02025-10-09The GbE (gigabit #Ethernet) minimum frame size is 512 bytes. #networking
on 02025-10-09102.4 terabit per second (51.2 in, 51.2 out) 64-port optical (infrared) network switch with a “324B streaming frame size (SFS)” which I think means it can forward 16.7 billion frames per second #hardware #electronics #networking
on 02025-10-08#pwnat #tunneling #networking #security #toread #NAT
on 02025-07-27#pwnat #paper #pdf #tunneling #networking #security #toread #NAT
on 02025-07-27“The only tool/technique to punch holes through firewalls/NATs where multiple clients & server can be behind separate NATs without any 3rd party involvement. Pwnat is a newly [02010] developed technique, exploiting a property of #NAT translation tables, with no 3rd party, port forwarding, DMZ, DNS, router admin requirements, STUN/TURN/UPnP/ICE, or spoofing.” #pwnat #tunneling #networking #security
on 02025-07-27“The purpose of this list is to track and compare tunneling solutions. This is primarily targeted toward self-hosters and developers who want to do things like exposing a local webserver via a public domain name, with automatic HTTPS, even if behind a NAT or other restricted network.” #decentralization #networking #security #tunnels #privacy #self-hosting
on 02025-07-27"Magic Wormhole" is for #networking #security #tunnels
on 02025-07-27discussion of #dumb-pipe (the #iroh wrapper) and #networking #security #tunnels alternatives such as WireGuard/TailScale, #ZeroTier, tinc, nebula, #Magic-Wormhole, etc., with comments from ZeroTier’s founder api.
on 02025-07-27“In 2023 it’s hard to connect two devices directly. #Dumb-pipe punches through NATs, using on-the-fly node identifiers. It even keeps your machines connected as network conditions change. (...) Dumb pipes are #Iroh Connections. The dumbpipe tool is a 200-line wrapper around the iroh Rust crate. You can use the iroh Endpoint to create a connection to use as a dumb pipe in your own app. (...) These dumb pipes use QUIC over a magic socket. It may be dumb, but it still has all the features of a full #QUIC connection: UDP-based, stream-multiplexing and encrypted. Besides using the multiplexed streams you can also use multiple connections each with their own ALPN.” Looks similar to magic-wormhole. #privacy #security #networking #tunnels
How to do #NAT traversal: 80% are full-cone NAT, doing synchronized UDP hole punching with port number prediction gets you to like 90%, and to get to 95% you need randomized retries. #networking
on 02017-08-22Julia Evans wrote a small TCP stack in under 500 lines of Python. #networking #smallisbeautiful
on 02015-12-29