Hi Saku, > Saku Ytti [mailto:[email protected]] > Sent: 18 May 2015 12:50 > > On 18 May 2015 at 14:00, Adam Vitkovsky <[email protected]> > wrote: > > Hey Adam, > > > Yes I'm thinking about "BGP Dynamic Update Peer-Groups" > > - the improved BGP update message generation where the update-group > > memberships is calculated automatically/dynamically by the system based > on > > common egress policies assigned to peers. > > And of course the configuration using templates (i.e. session templates and > > policy templates) and inheritance. > > I've been relying on the above since ever in Cisco world and I miss that > > much in Junos. > > The update-groups are created dynamically in JunOS as far as I know. > That is if you have BGP group where neighbors have unique export > policies, you will have multiple update-groups in configuration group. Yes that is my understanding, that there's definitely an update-group for each configuration group.
> But I guess if you have two neighbors with same export policies in > different configuration group, it likely won't share same > update-group, haven't tested though. Yeah that's the culprit right there that the update-group is based on the configuration group rather than the actual egress policy commonalities. I also suspect that if you have two neighbours in a configuration group both with the same policy but attached directly to the peer there would be 3 update groups created one for the configuration group and one for each peer. > I'm personally not too excited about templates in IOS, as I tend to > have only like 3-5 peer-groups in IOS, and if I translate the config > to template based, the amount of lines in my config increases. I think > the break-even would require rather large amount of groups. > -- > ++ytti Of course it depends on the use case and the divergence of routing policies among peers. adam --------------------------------------------------------------------------------------- This email has been scanned for email related threats and delivered safely by Mimecast. For more information please visit http://www.mimecast.com --------------------------------------------------------------------------------------- _______________________________________________ juniper-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/juniper-nsp
