BGP route not being un-suppressed

[egilles123]

I have a route in my BGP table that's being suppressed that I can't seem to un-suppress. I believe I'm missing something simple but I can't seem to put my finger on it. I have an aggregate for 10.0.0.0 255.0.0.0 but I'm trying to un-suppress the 10.190.19.0 route. I'm able to un-suppress other routes but not the 10.190.19.0. See config and route below.

router bgp 65150
 aggregate-address 10.0.0.0 255.0.0.0 suppress-map ALLOW_CRO
 redistribute ospf 109 route-map OSPF_TO_BGP

route-map ALLOW_CRO deny 10
match ip address prefix-list CRO_SJC_IAD

ip prefix-list CRO_SJC_IAD seq 85 permit 10.190.19.0/24

Here is the route that is suppressed.

s>  10.190.19.0/24 10.166.254.10   30    32768 ?

Here it is in the table.

router#sh ip route 10.190.19.0
Load for five secs: 6%/3%; one minute: 6%; five minutes: 5%
Time source is NTP, 22:23:54.231 EDT Sun Mar 17 2019

Routing entry for 10.190.19.0/24
Known via "ospf 109", distance 110, metric 30
Tag 5000, type extern 2, forward metric 45
Redistributing via bgp 65150
Advertised by bgp 65150 route-map OSPF_TO_BGP
Last update from 10.166.254.10 on GigabitEthernet0/0, 3d23h ago
Routing Descriptor Blocks:
* 10.166.254.10, from 192.168.253.15, 3d23h ago, via GigabitEthernet0/0
Route metric is 30, traffic share count is 1
Route tag 5000

router#sh ip bgp 10.190.19.0
Load for five secs: 6%/2%; one minute: 6%; five minutes: 5%
Time source is NTP, 22:24:01.363 EDT Sun Mar 17 2019
BGP routing table entry for 10.190.19.0/24, version 14889807
Paths: (1 available, best #1, table default, Advertisements suppressed by an aggregate.)
Not advertised to any peer
Local
10.166.254.10 from 0.0.0.0 (192.168.254.232)
Origin incomplete, metric 30, localpref 100, weight 32768, valid, sourced, best

router#sh ip bgp neighbors 68.136.243.81 advertised-routes
Load for five secs: 5%/3%; one minute: 5%; five minutes: 5%
Time source is NTP, 22:35:56.114 EDT Sun Mar 17 2019

BGP table version is 14941566, local router ID is 192.168.254.232
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale, m multipath, b backup-path, x best-external, f RT-Filter
Origin codes: i - IGP, e - EGP, ? - incomplete

Network Next Hop Metric LocPrf Weight Path

*> 10.0.0.0 0.0.0.0 32768 i

I've also tried to permit my route-map statement but no luck.

[Evgeniy Prichinin]

You should use unsupress-map.

something like:
route-map ALLOW_CRO permit 10
match ip address prefix-list CRO_SJC_IAD

ip prefix-list CRO_SJC_IAD seq 85 permit 10.190.19.0/24

aggregate-address 10.0.0.0 255.0.0.0 summary-only
neighbor x.y.z.v unsuppress-map ALLOW_CRO

[Georg Pauwen]

Hello,

on a side note, I tested your setup in GNS3, and although the logic (deny what you want to suppress, hence unsuppress it) is 'backwards', it should work. The only difference between my syntax and yours is that I added a second statement to the route map (which shouldn't matter since it only 'allows' anything not specified in the prefix list to be suppressed:

route-map ALLOW_CRO deny 10
match ip address prefix-list CRO_SJC_IAD

!

route-map ALLOW_CRO permit 20

That said, can you post the full configuration of your router, as well as the full output of 'show ip route' ?

[egilles123]

I actually do have a permit statement at the end.

"route-map ALLOW_CRO permit 30"

I don't want to modify the BGP config that's already there. I just want to modify the prefix-list and route-map statement. I'll try adding a permit statement before the "deny" statement and see if that does the trick.

[paul driver]

Hello

---

@egilles123 wrote:

router bgp 65150
 aggregate-address 10.0.0.0 255.0.0.0 suppress-map ALLOW_CRO

---

remove the suppress map completely and just allow the aggregate as by default that will advertise all prefixes and the aggregate bare in mind without the As-set appended you can leave your self to open to incurring a loop because prefixes will be advertised without its originated as-path  attribute

Router bgp 65150

aggregate- address 10.0.0.0 255.0.0.0