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IPv6 Hop-by-Hop & Destination Option #56
I will follow-up on this issue and get back to you guys. This is the first time I am hearing it. Stay tuned.…
On Thu, Oct 4, 2018 at 5:22 PM Andy Fingerhut ***@***.***> wrote: ***@***.**** commented on this pull request. ------------------------------ In telemetry/specs/INT.mdk <#56 (comment)>: > Geneve options to be defined for INT Headers. +### INT over IPv6 I may be woefully out of date on IPv6 extension header behavior, but regarding the option '"INT over IPv6" - INT Headers are carried in the IPv6 packets as Hop-by-Hop option.', I had thought that switches in practice have to punt packets with an IPv6 Hop-by-Hop extension header to the slow path, e.g. software forwarding on a general purpose CPU. I did a quick search and found that RFC 7045 (published Dec 2013) says this in Section 2.2 "Hop-by-Hop Options": The IPv6 Hop-by-Hop Options header SHOULD be processed by intermediate forwarding nodes as described in [RFC2460]. However, it is to be expected that high-performance routers will either ignore it or assign packets containing it to a slow processing path. Designers planning to use a hop-by-hop option need to be aware of this likely behaviour. Is there really a desire to put INT data into a header that will likely result in slow path processing in the network? — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#56 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/APOTlh71iKSIC-fuU5V8dPInExCcGAQpks5uhqZWgaJpZM4XGWt3> .
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