[j-nsp] multiple bgp routing-instances on one router

[Dmitry Cherkasov]

On Fri, Nov 11, 2005 at 10:00:06AM -0800, Jake Bourgeois wrote:
JB>  
JB>  If I understand your ultimate goal here you'll want something like this
JB>  

Thank you Jake for pointing me the right way.
Yet your advice on configuration as I see needs some correction: the
same rib-group does not work for passing routes in both directions. To
make it work i configured two rib-groups: Integral-Partial and
Partial-Integral which differs in the order of mentioning the tables. 
Each routing-instance should use the rib-group in which its own table 
is mentioned at the first place (is primary).  

JB>  
JB>  show routing-options
JB>  
JB>  rib-groups {
JB>      common {

should be:

	Partial-Integral {

JB>          import-rib [ partial.inet.0 integral.inet.0 ];

	}

	Integral-Partial {
		import-rib [ integral.inet.0 partial.inet.0 ];

JB>      }
JB>  }
JB>  
JB>  
JB>  
JB>  
JB>  routing-instances {
JB>      Integral {
JB>          description Integral-VRF-Table;
JB>          instance-type vrf;
JB>          interface ge-1/3/0.200;
JB>          route-distinguisher 9991:0;
JB>          vrf-target import target:9991:0;
JB>          vrf-target export target:9991:1111;
JB>          protocols {
JB>              bgp {
JB>                  group Local {
JB>                        family inet {
JB>                            unicast {
JB>                               rib-group common; <<------

should be:

				rib-group Integral-Partial;

JB>                      type internal;
JB>                      neighbor 9.9.9.2;
JB>                  } 
JB>              }
JB>          }
JB>      }
JB>      Partial {
JB>          description Partial-VRF-Table;
JB>          instance-type vrf;
JB>          interface ge-1/3/0.100;
JB>          route-distinguisher 9991:1111;
JB>          vrf-target import target:9991:1111;
JB>          vrf-target export target:9991:0;
JB>          protocols {
JB>              bgp {
JB>                  group External {
JB>                      type external;
JB>                           family inet {
JB>                               unicast {
JB>                                  rib-group common; <<----

should be:

				rib-group Partial-Integral;

JB>                      }
JB>                      neighbor 1.1.1.2 {
JB>                          peer-as 1111;
JB>                      }
JB>                  }
JB>              }
JB>          }
JB>      }
JB>  }
JB>  
JB>  For more info check
JB>  https://www.juniper.net/techpubs/software/junos/junos70/swconfig70-routi
JB>  ng/html/routing-generic-config6.html
JB>  
JB>  hths
JB>  
JB>  
JB>  
JB>  > -----Original Message-----
JB>  > From: juniper-nsp-bounces at puck.nether.net
JB>  > [mailto:juniper-nsp-bounces at puck.nether.net] On Behalf Of
JB>  > Dmitry Cherkasov
JB>  > Sent: Friday, November 11, 2005 10:21 AM
JB>  > To: juniper-nsp at puck.nether.net
JB>  > Subject: [j-nsp] multiple bgp routing-instances on one router
JB>  >
JB>  > Hello everybody,
JB>  >
JB>  > What I try to do is the following:
JB>  >
JB>  > 1) separate routing instances for BGP tables from 3 eBGP neighbors
JB>  > 2) integral BGP-table for iBGP neighbors
JB>  >
JB>  > Routes are exported from eBGP tables to iBGP table and from iBGP table
JB>  > to eBGP tables.
JB>  >
JB>  > JunOS 7.3, router M7i
JB>  >
JB>  > Here is the configuration:
JB>  >
JB>  > interfaces {
JB>  >       unit 100 {
JB>  >               description eBGP-neighbor-1
JB>  >               vlan-id 100;
JB>  >               family inet {
JB>  >                       address 1.1.1.1/30;
JB>  >               }
JB>  >       }
JB>  >
JB>  > ... similar for other eBGP-neighbors ...
JB>  >
JB>  >         unit 200 {
JB>  >                 description iBGP-neighbor
JB>  >                 vlan-id 200;
JB>  >                 family inet {
JB>  >                         address 9.9.9.1/30;
JB>  >                 }
JB>  >         }
JB>  > }
JB>  > routing-options {
JB>  >       router-id 9.9.9.1;
JB>  >       autonomous-system 9991;
JB>  > }
JB>  > routing-instances {
JB>  >     Integral {
JB>  >         description Integral-VRF-Table;
JB>  >         instance-type vrf;
JB>  >         interface ge-1/3/0.200;
JB>  >         route-distinguisher 9991:0;
JB>  >         vrf-target import target:9991:0;
JB>  >         vrf-target export target:9991:1111;
JB>  >         protocols {
JB>  >             bgp {
JB>  >                 group Local {
JB>  >                     type internal;
JB>  >                     neighbor 9.9.9.2;
JB>  >                 } 
JB>  >             }
JB>  >         }
JB>  >     }
JB>  >     Partial {
JB>  >         description Partial-VRF-Table;
JB>  >         instance-type vrf;
JB>  >         interface ge-1/3/0.100;
JB>  >         route-distinguisher 9991:1111;
JB>  >         vrf-target import target:9991:1111;
JB>  >         vrf-target export target:9991:0;
JB>  >         protocols {
JB>  >             bgp {
JB>  >                 group External {
JB>  >                     type external;
JB>  >                     neighbor 1.1.1.2 {
JB>  >                         peer-as 1111;
JB>  >                     }
JB>  >                 }
JB>  >             }
JB>  >         }
JB>  >     }
JB>  > }
JB>  >
JB>  > Yet it does not work: the routes visible by 'show route table
JB>  > Partial.inet.0' does not appear in 'show route table Integral.inet.0'
JB>  >
JB>  > Please advice, what I'm doing wrong?

-- 
-------------------------------------------------------
 Dmitry Cherkasov   ISP "Intercom"   (380)44 251-12-88
   http://www.intercom.net.ua    DC1-UANIC CHD1-RIPE