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FireBeyond 9 hours ago

My understanding is that the setup needs to allow them to work on packet routing at those speeds, not just send/receive, to simulate SCION.

Youden 9 hours ago | parent [-]

Ah, so they need to hold giant routing tables in memory and do lookups in them or something like that?

Veserv 8 hours ago | parent [-]

Does not look like it [1]. It appears to be a protocol that enumerates your exact path, interface by interface, on every data packet. So you can just blindly forward to the next hop written in the packet itself.

By my guess, a competent and efficient implementation should be able to run the routing logic at ~30-100 million packets per second per core. That would be ~300-1,000 Gb/s per core, so you would bottleneck on your memory bandwidth if you have even a single copy.

[1] https://www.ietf.org/archive/id/draft-dekater-scion-dataplan...

AdamJacobMuller 3 hours ago | parent | next [-]

Is this some MPLS-like thing?

wmf 7 hours ago | parent | prev [-]

Don't forget checking the MACs.