On 14.6.2011 12:40, Bernhard Hahn wrote: > Dear Bird Mailinglist, Hi Bernhard, can you please send me output of:
bird> show protocols all kernel1 Ondrej > > We are running Bird 1.2.5 under Debian Etch AMD64 as a routeserver. Last > Friday we changed a filter to allow the import of prefixes from a peer > with the same AS as the routeserver. The broken design of the > configuration, allowed the import of prefixes with empty AS-path to the > master table and their export to the EBGP peers. > Unfortunately this caused nearly all Cisco (&RFC compliant) machines to > close their sessions. > > At this time, one of our two routeservers started exporting the Master > table to the kernel table. There is currently no impact, but we are > wondering how this could happen and how to resolve this situation, > without affecting the running sessions. > > The kernel part of the configuration never changed and looks like: > > protocol kernel { > disabled; > import all; # Default is import all > export all; # Default is export none > scan time 10; # Scan kernel tables every 10 seconds > } > > When we remove one of the kernel prefixes like: > > route del -net X.Y.Z.A netmask 255.255.255.0 gw X.X.X.X eth1 > > It reappears after around 10 seconds. Guess the scan time is taking > effect here. > > "configure soft" was already triggered several times without effect to > the kernel protocol. > > Regards > Bernhard >