If this is a test environment you could put policies in place to influence traffic to come in your EDGE2, but meanwhile for outbound still have traffic going out EDGE1. Then fail EDGE1 and see how long it takes..
That'll give you an answer if its inbound or outbound that is taking the 15 seconds. As others have already stated its mostly likely the internet is taking 15 seconds to converge. On Fri, Feb 27, 2015 at 4:43 AM, Gert Doering <[email protected]> wrote: > Hi, > > On Fri, Feb 27, 2015 at 02:42:44AM +0100, jure brkljacic wrote: > > When i shutdown the "upstream link" on EDGE1 all the traffic is rerouted > to > > EDGE 2 router, but i see 15sec complete outage. (the path the end system > > takes in "internal router" ->>EDGE1->>EDGE2) > > I'd assume that this is external reconvergence - "The Internet" taking > its time to re-route packets back to you via Edge 2. > > > how to minimize the traffic loss? > > That very much depends on where the two BGP sessions are going to. If it's > two different ISPs, there really isn't a way to make the Internet converge > faster for you (there's work on graceful shutdown communities, which would > help quite a lot, but that is not yet implemented or rolled out at a wider > scale). > > If both links go to the same ISP, talk to them... > > gert > -- > USENET is *not* the non-clickable part of WWW! > // > www.muc.de/~gert/ > Gert Doering - Munich, Germany > [email protected] > fax: +49-89-35655025 > [email protected] > > _______________________________________________ > cisco-nsp mailing list [email protected] > https://puck.nether.net/mailman/listinfo/cisco-nsp > archive at http://puck.nether.net/pipermail/cisco-nsp/ > _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
