Cisco asr bgp soft reset update#

Regarding the “default route + customer routes” v “full feed” and once I get alarms I’ll crank it up to 1.5M

I use the following facing transit providers: With regards to your question on more realistic thresholds, There's actually a whole lot of conditioning we do at ingress in order to make sure we shield ourselves from all the garbage:ĭropping prefixes too long/short, bogons, bogon AS numbers, long as paths, bleaching communities, etc.

Cisco asr bgp soft reset update#

Or another example where university did an experiment and send out route update to the Internet with a never seen before BGP attribute -again number of BGP sessions got reset, and that’s why now we have the “BGP Attribute Filter” (which I’m not using, yet) and “Enhanced Attribute Error Handling” (enabled by default) features. (that’s why now we have the feature for limiting the AS-PATH length (I do max 51). Like some ISP prepending their AS# 255 times -and send the update to the Internet where number of boxes crashed (or bgp on them crashed) cause they did not expect that. Internet is a wild west an anything possible however crazy it might sound will eventually happen.

Yes setting to 4B would be the 'let it wide open and never get logs' approach, but doing that would leave your box unprotected.