Re: Multiple ASBRs: summarizing prefixes from BGP into OSPF

2017-07-28 Thread Ondrej Zajicek
On Wed, Jul 26, 2017 at 12:20:29PM +0100, Israel G. Lugo wrote: > Hello, > What I need, unless someone has a better suggestion, is some way to > summarize externals in OSPF, such that the summary prefix is only > announced if I've got more specific routes inside it. Hi > area 0.0.1.2 { > n

Re: Multiple ASBRs: summarizing prefixes from BGP into OSPF

2017-07-27 Thread Israel G. Lugo
TL;DR: * OSPF backbone, ECMP * 2 redundant Bird ASBRs learning 3000~4000 prefixes from 2 BGP route servers and routing them to 3000~4000 nexthops in a customer VLAN * All these prefixes are subnets of a few big dedicated prefixes * I want the ASBRs to redistribute the big aggregate pre

Multiple ASBRs: summarizing prefixes from BGP into OSPF

2017-07-26 Thread Israel G. Lugo
Hello, I've got an internal Openstack deployment, currently in beta but expecting a few thousands tennants in full production. Each tennant gets at least an IPv4 prefix and an IPv6 one. They may get additional prefixes upon payment or special request. The way Openstack works is each tennant will