Re: Last-resort tunnel recommendations on WAN network ...

On 3/17/26 23:08, Raymond Burkholder via NANOG wrote:
> Linux VRF is.  Plus EBGP and VxLAN and MPBGP and EVPN.

Linux also has a lot of options aside from VRF that can be useful.  It 
has robust policy routing as well as full-on network namespaces, so you 
have both a lighter option and a heavyweight but incredibly flexible 
option and all without resorting to full virtualization and the 
performance and administration hassles that can come with it.

Since none are tied directly to signaling, you can also signal any of 
those three however you like assuming you can find a way to tie it into 
your routing daemon.  That's usually impractical with policy routing, 
but VRFs and especially network namespaces (where you're just going to 
be running multiple routing daemon instances by design) give lots of 
options.

I'm not aware of any "routing" platforms that provide that level of 
flexibility and especially without getting absurdly complicated to 
configure since they, by design, try to centralize everything into a 
single configuration database (though JunOS's config format is very 
nice, here).

--
Brandon Martin
_______________________________________________
NANOG mailing list 
https://lists.nanog.org/archives/list/[email protected]/message/LX4HIWKVFLXK4WSISHDA3GRBAHWUD57A/