5 ms·
Reminds me of a random google SRE slide deck I stumbled across a couple of years ago. Switch itself corrupts payload; dense enough to pass the tcp checksum in u
by kjetijor 11y ago
Reminds me of a random google SRE slide deck I stumbled across a couple of years ago. Switch itself corrupts payload; dense enough to pass the tcp checksum in use.
http://www.catonmat.net/blog/wp-content/uploads/2008/11/thatcouldnthappentous.pdf http://www.catonmat.net/blog/wp-content/uploads/2008/11/that...
- codezero 11y agothat's pretty interesting – do you know if there's a more thorough writeup about that issue?
- kev009 11y agoThis. I work at a CDN and there's a particular switch model that we have a fair number of doing this. It was incredibly hard for the network team and vendor to track down. It's because one of the internal data paths was not error checked (i.e. hw design and layout problem). We're somewhat working around it with application layer stuff, but are moving off that switch and vendor as fast as capex allows. It wasn't a bottom of the barrel vendor either.
- mingus68040 11y agoPlease name and shame this vendor so that others may benefit from avoiding them.
- jlgaddis 11y agoBrocade?
- kev009 11y agoYes