Peter Wemm <pe...@wemm.org> wrote in <cage5ycptjkoezdckgu6qc_fvmnrbpnp4bizp0fyi5oyxk1d...@mail.gmail.com>:
pe> I'm looking for pointers to something that can listen to bgp default pe> route announcements from two outbound gateways and set a RADIX_MPATH pe> compatible default route based on whether one or both are alive. pe> pe> openbgpd from ports is extremely incompatible with RADIX_MPATH on 10. pe> You *have* to turn off fib (kernel routing table) updates or it will pe> destroy your machine when it runs out of physical memory for duplicate pe> routes. pe> pe> I know I can do an evil hack and poll the 'bgp show ...' output and pe> manually update the default route but that means updates are delayed pe> to the poll interval. I'm hoping there is a more elegant solution pe> that already works and is immediately responsive to a change in bgp pe> state. pe> pe> The caveat is it *must* run on 10.x, with RADIX_MPATH enabled. I'd pe> gladly run openbgpd if it actually worked. openbgpd has some pe> awareness of mpath so it might be fixable but openbsd's multipath is pe> different to ours. pe> pe> Ideas? Unfortunately openbgpd does not work well with RADIX_MPATH yet. As you pointed out, it is due to difference of multiple routes support between FreeBSD and OpenBSD. I think FIB handling can be improved, but needs some more investigation for that. I think Quagga and BIRD can work with injecting ECMP routes into RADIX_MPATH-enabled FIB. -- Hiroki
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