Routing

Hi folks,

 

I am trying to advertise all static routes in bgp, but for some reason my inactive routes are not advertised

 

My config:

set protocols bgp group cogent type external
set protocols bgp group cogent local-preference 180
set protocols bgp group cogent advertise-inactive
set protocols bgp group cogent import pol-bb2isp-in
set protocols bgp group cogent import pol-reject-any
set protocols bgp group cogent family inet unicast
set protocols bgp group cogent export pol-bb2isp-out
set protocols bgp group cogent export pol-reject-any
set protocols bgp group cogent neighbor xxx.xxx.140.209 description Cogent
set protocols bgp group cogent neighbor xxx.xxx.140.209 peer-as 174

set policy-options policy-statement pol-bb2isp-out term match-static from protocol static
set policy-options policy-statement pol-bb2isp-out term match-static from route-filter xxx.xxx.203.0/24 exact
set policy-options policy-statement pol-bb2isp-out term match-static from route-filter xxx.xxx.232.0/22 exact
set policy-options policy-statement pol-bb2isp-out term match-static from route-filter xxx.xxx.72.0/23 exact
set policy-options policy-statement pol-bb2isp-out term match-static then accept

set routing-options static route xxx.xxx.203.0/24 reject
set routing-options static route xxx.xxx.203.0/24 install
set routing-options static route xxx.xxx.232.0/22 reject
set routing-options static route xxx.xxx.232.0/22 install
set routing-options static route xxx.xxx.72.0/23 reject
set routing-options static route xxx.xxx.72.0/23 install

# run show route protocol static

inet.0: 45 destinations, 49 routes (45 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both

xxx.xxx.203.0/24     *[Static/5] 2w1d 13:36:40
                      Reject
xxx.xxx.232.0/22     *[Static/5] 2w1d 13:35:11
                      Reject
xxx.xxx.72.0/23       [Static/5] 2w1d 13:35:11
                      Reject

# run show route advertising-protocol bgp xxx.xxx.140.209

inet.0: 45 destinations, 49 routes (45 active, 0 holddown, 0 hidden)
  Prefix		  Nexthop	       MED     Lclpref    AS path
* xxx.xxx.203.0/24          Self                                    I
* xxx.xxx.232.0/22          Self                                    I

The /23 that is not advertised is also directly connected 

 

Thanks,

Dan

Hi ndanl,

 

Think it's not getting advertised because there's an active route (direct) for the same prefix.  Try to include a term for matching the direct route and the prefix:

 

set policy-options policy-statement pol-bb2isp-out term match-direct from protocol direct
set policy-options policy-statement pol-bb2isp-out term match-direct from route-filter xxx.xxx.203.0/24 exact

set policy-options policy-statement pol-bb2isp-out term match-direct then accept

 

Hope this helps.

Regards,
-r.

--------------------------------------------------

If this solves your problem, please mark this post as "Accepted Solution."
Kudos are always appreciated :).

mriyaz is correct, advertise inactive flag will only send a matching route to an active route if the protocol is different than the active route one.  If they are the same, as in this case, only the active one is sent.

 

By default, BGP readvertises only active routes. To have the routing table export to BGP the best route learned by BGP even if Junos OS did not select it to be an active route, include the advertise-inactive statement:
Reference: https://www.juniper.net/documentation/en_US/junos/topics/example/bgp-advertise-inactive.html