It’s not implemented in the Linux kernel, but the latency penalty you’re describing is part of the “Happy Eyeballs” algorithm: https://en.wikipedia.org/wiki/Happy_Eyeballs

It’s pretty common for IETF drafts to be substantially complete well before they are finalized as RFCs. For example, supporting ML-KEM in TLS is still a draft, but there are already multiple large scale deployments of it since the technical aspects were nailed down a while ago

Also missing Band 13, which is Verizon’s main band for coverage

I think that'll only happen when and if the corresponding drop in sales offsets increases in revenue from the subscription services owners will be forced to use. When they announced this originally for EVs it was clear the underlying motivation was to convert owners from a one-time source of income into an ongoing stream by forcing them into a subscription model for features they would get from CarPlay/Android Auto.

I don't drive so I just look at the whole industry from afar

The smaller switches like the Arista 710P are meant for deployment out at the edge of the network where you want something small and quiet (e.g. at people’s desks or in conference rooms) to provide more ports without needing as many runs back to the network core where the big loud switches live. They’re still enterpise grade since they support enterprise features like centralized management, VLANs, QoS, IGMP snooping, etc.

Hell, the switches we’re talking about support OSPF, BGP, VXLAN, the works. THAT is enterprise to me.

Yeah, the ClientHello message(s) are already part of the transcript signed by the server (and the client in mTLS) during the handshake

This reminds me of how Sarah at the Connections Museum in Seattle wrote a driver to allow an Asterisk soft PBX on a Linux box to speak revertive pulse signaling to the pre-DTMF trunks on their old telephone switches

https://www.youtube.com/watch?v=35N5vKKGDy8

Years of middleboxes tampering with TCP and barfing on anything they didn’t recognize is why QUIC encrypts everything as well

> QUIC encrypts everything

QUIC is built on top of TLS 1.3 where client hello encryption is not mandatory, so this is not strictly true.

Many operators do configure the SIP signaling for VoLTE to use an IPsec transport terminated at the P-CSCF, but most (if not all) of them only configure IPsec to provide integrity protection.

> Murthy Renduchintala

He was a joke at Qualcomm before he went to Intel too. That Intel considered snagging him a coup was a consistent source of amusement.