Hi, On 23.02.21 00:12, Alexander Zubkov wrote: > Hi, > > As far as I know, when you shut down bird manually, you have to use > "graceful restart" command to stop it instead of "down" command: > https://bird.network.cz/?get_doc&v=20&f=bird-4.html#cli-graceful-restart > And also use "-R" option for the daemon when starting. >
Thanks! That works perfectly fine for bird 2. Is that also possible with bird 1.6? It lists support for LLGR in the configuration documentation: https://bird.network.cz/?get_doc&v=16&f=bird-6.html#ss6.3 But the remote control documentation does not list `graceful restart` and it indeed doesn't work: # birdc graceful shutdown BIRD 1.6.8 ready. No such command. Press `?' for help. Cheers, Tim > > On Mon, Feb 22, 2021 at 10:25 PM Tim Meusel <[email protected]> wrote: >> >> >> >> Hi! >> I'm running many boxes with Bird 2.x. They all peer with virtual JunOS >> routers via BGP. Each Bird instance announces routes for IP addresses >> from local virtual machines. In case bird dies or gets stopped for >> upgrades, I want that the JunOS route reflectors keep the routes for a >> certain amount of time. My config currently looks like this: >> >> template bgp VMX { >> local $ip as $as; >> multihop; # we don't have a layer 2 connection to the routers >> bfd graceful; >> hold time 240; >> startup hold time 240; >> connect retry time 120; >> graceful restart yes; >> graceful restart time 0; >> long lived graceful restart yes; >> long lived stale time 90; >> ipv4 { >> export filter virtual_machines_v4; >> import none; >> next hop self; >> }; >> ipv6 { >> export filter virtual_machines_v6; >> import none; >> next hop self; >> }; >> } >> >> protocol bgp $peer from VMX { >> description $desc; >> neighbor $ip> as $as; >> } >> >> this works fine if I do: >> * birdc reconfigure >> * kill -HUP on the bird pid >> * killall -9 bird >> >> however if I do a `systemctl stop bird`, it does an administrative >> shutdown and the virtual MX drops the routes. As far as I understand the >> RFC for LLGR this is the correct behavior. Can one of you tell me if >> there is an option on JunOS to keep the routes, even after a ` >> administrative shutdown`, or if I can advice Bird to not cleanly >> shutdown sessions? >> >> Cheers, Tim >> >>
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