nanog mailing list archives
RE: ICMPv6 "too-big" packets ignored (filtered ?) by Cloudflare farms
From: <adamv0025 () netconsultings com>
Date: Tue, 12 Mar 2019 17:55:10 -0000
Hey Saku,
From: Saku Ytti <saku () ytti fi> Sent: Tuesday, March 12, 2019 11:54 AM Hey Adam,We did this exact testing a while back on Juniper 2nd and 3rd gen PFEs. The results showed it doesn't matter a tiny bit whether you do 5-tuple hashor use flow label.So the bottom line is on modern NPUs it doesn't really matter.Does PFE mean PE or Trio? What exactly did you test? I don't see way to disable L3+L4 keys and enable flow_label.
This was on Trio and sorry I should have clarified we did test with default L3+L4 keys on MPLS labelled packets -default in Junos (as baseline). And then repeated the test using flow labels -which forced Trio to ignore the L3+L4 keys and act solely on flow label. PPS performance wise we couldn’t really tell the difference (was in the noise). adam
Current thread:
- Re: ICMPv6 "too-big" packets ignored (filtered ?) by Cloudflare farms, (continued)
- Re: ICMPv6 "too-big" packets ignored (filtered ?) by Cloudflare farms Saku Ytti (Mar 05)
- Re: ICMPv6 "too-big" packets ignored (filtered ?) by Cloudflare farms Töma Gavrichenkov (Mar 08)
- Re: ICMPv6 "too-big" packets ignored (filtered ?) by Cloudflare farms Saku Ytti (Mar 08)
- Re: ICMPv6 "too-big" packets ignored (filtered ?) by Cloudflare farms Tarko Tikan (Mar 08)
- Re: ICMPv6 "too-big" packets ignored (filtered ?) by Cloudflare farms Töma Gavrichenkov (Mar 08)
- Re: ICMPv6 "too-big" packets ignored (filtered ?) by Cloudflare farms Saku Ytti (Mar 08)
- Re: ICMPv6 "too-big" packets ignored (filtered ?) by Cloudflare farms Töma Gavrichenkov (Mar 08)
- Re: ICMPv6 "too-big" packets ignored (filtered ?) by Cloudflare farms Saku Ytti (Mar 08)
- RE: ICMPv6 "too-big" packets ignored (filtered ?) by Cloudflare farms adamv0025 (Mar 12)
- Re: ICMPv6 "too-big" packets ignored (filtered ?) by Cloudflare farms Saku Ytti (Mar 12)
- RE: ICMPv6 "too-big" packets ignored (filtered ?) by Cloudflare farms adamv0025 (Mar 12)
- Re: ICMPv6 "too-big" packets ignored (filtered ?) by Cloudflare farms Saku Ytti (Mar 12)
- RE: ICMPv6 "too-big" packets ignored (filtered ?) by Cloudflare farms adamv0025 (Mar 12)
- Re: ICMPv6 "too-big" packets ignored (filtered ?) by Cloudflare farms Saku Ytti (Mar 12)
- RE: ICMPv6 "too-big" packets ignored (filtered ?) by Cloudflare farms adamv0025 (Mar 13)
- Re: ICMPv6 "too-big" packets ignored (filtered ?) by Cloudflare farms Masataka Ohta (Mar 09)
- Re: ICMPv6 "too-big" packets ignored (filtered ?) by Cloudflare farms Jean-Daniel Pauget (Mar 08)
- Re: ICMPv6 "too-big" packets ignored (filtered ?) by Cloudflare farms Saku Ytti (Mar 08)
- Re: ICMPv6 "too-big" packets ignored (filtered ?) by Cloudflare farms Brandon Martin (Mar 08)