> Lukas Tribus > Sent: Thursday, March 09, 2017 11:30 AM > > Hey guys, > > > troubleshooting routing issues on paths external to our network that lead to > blackholing of specific 5-tuple combinations here, very likely due to > ECMP/Bundling issues (we are link is up/up and used for load-balancing, but > cannot actually transmit or receive traffic, therefor dropping those packets > on the floor). > > > Now, this happened a few times over the years, and I am wondering if you > guys have any suggestions or tools that you use in those cases, other than > tcpdump'ing at both ends, generating thousands of 5-tuple combinations and > then analyzing them in wireshark. > > Also, after obtaining a list of affected and unaffected 5-tuples, any particular > easy way to find out how this is getting hashed, so that we could find the > likely number of bundle members (this could be very useful multiple > interconnection and parties are involved). > > Hey Lukas,
Different platforms have different possibilities to examine the hashing, what platforms are you using? adam netconsultings.com ::carrier-class solutions for the telecommunications industry:: _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
