Date: Thu, 16 Sep 2021 19:36:14 -0500 From: Mark Kamichoff <prox@prolixium.com> To: freebsd-net@freebsd.org Subject: ROUTE_MPATH and hashing Message-ID: <YUPi/r8iGCecEz4H@prolixium.com>
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Hi -
Does anyone here know how to tweak the hashing algorithm (per flow/packet/x)
that's used for the new ROUTE_MPATH option that's in 13?
I'm using FRR 7 and I see both routes in the FIB but only one is ever
chosen and takes traffic.
(dax:20:23:EDT)% show ipv6 route 2620:6:2003:105::/64
Routing entry for 2620:6:2003:105::/64
Known via "bgp", distance 20, metric 0, best
Last update 08:24:34 ago
2620:6:2000:104::35 (recursive), weight 1
* 2620:6:2000:1ff::10c2, via tun9, weight 1
* 2620:6:2000:1ff::1172, via tun12, weight 1
(dax:20:23:EDT)% netstat -rn|grep 2620:6:2003:105::/64
2620:6:2003:105::/64 2620:6:2000:1ff::1172 UG1 tun12
2620:6:2003:105::/64 2620:6:2000:1ff::10c2 UG1 tun9
(dax:20:23:EDT)% route -n6 get 2620:6:2003:105::
route to: 2620:6:2003:105::
destination: 2620:6:2003:105::
mask: ffff:ffff:ffff:ffff::
gateway: 2620:6:2000:1ff::1172
fib: 0
interface: tun12
flags: <UP,GATEWAY,DONE,PROTO1>
recvpipe sendpipe ssthresh rtt,msec mtu weight expire
0 0 0 0 1455 0 0
(dax:20:23:EDT)%
I didn't see any sysctls exposed but maybe I'm not looking in the right
place.
- Mark
--
Mark Kamichoff
prox@prolixium.com
https://www.prolixium.com/
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