BGP route on Maestro Active/Active are showing as inactive/unusable

ajax — Wed, 16 Jul 2025 10:32:42 GMT

Hi all!

We have a maestro with two gateways in active/active mode, on which we are trying to configure receiving routes via bgp from a router.

The router (address 10.20.30.40), with which bgp peering is configured and which advertises a route to the local subnet 10.100.100.0/25.

The command show bgp peers on the gateway gives the following:

CP-01-02> show bgp peers
1_01:

Flags: R - Peer restarted, W - Waiting for End-Of-RIB from Peer

PeerID AS Routes ActRts State InUpds OutUpds Uptime
10.20.30.40 64550 1 0 Established 2 17 01:30:08

1_02:

Flags: R - Peer restarted, W - Waiting for End-Of-RIB from Peer

PeerID AS Routes ActRts State InUpds OutUpds Uptime
10.20.30.40 64550 0 0 Idle 0 0 00:00:00

The command show route all bgp gives the following:

CP-01-02> show route all bgp
1_01:
Codes: C - Connected, S - Static, R - RIP, B - BGP (D - Default),
O - OSPF IntraArea (IA - InterArea, E - External, N - NSSA),
IS - IS-IS (L1 - Level 1, L2 - Level 2, IA - InterArea, E - External),
A - Aggregate, K - Kernel Remnant, H - Hidden, P - Suppressed,
NP - NAT Pool, U - Unreachable, i - Inactive

B H i 10.100.100.0/25 via 10.20.30.40, eth1.1234, cost 0, age 5386

1_02:
Codes: C - Connected, S - Static, R - RIP, B - BGP (D - Default),
O - OSPF IntraArea (IA - InterArea, E - External, N - NSSA),
IS - IS-IS (L1 - Level 1, L2 - Level 2, IA - InterArea, E - External),
A - Aggregate, K - Kernel Remnant, H - Hidden, P - Suppressed,
NP - NAT Pool, U - Unreachable, i - Inactive

It is clear that the route is only on one gateway (which is in the Established state) and the route is Hidden/Inactive.

When trying to figure out why the route doesn't get into active ones, I turned on bgp debugging and the following messages were noticed in /var/log/routed.log:

Jul 9 16:22:46.134988 bgp_rt_import_single_route(7350): Processing route 10.100.100.0/255.255.255.128 for import at Jul 9 16:22:46.134893

Jul 9 16:22:46.134988 bgp_rt_check_ibgp_route_has_sync(7295): 10.20.30.40+63709 [iBGP AS 64550] Route 10.100.100.0/25 has no active route

Jul 9 16:22:46.134988 bgp_rt_reinit(8928): 10.20.30.40+63709 [iBGP AS 64550] 10.100.100.0/25 does not have iBGP sync, marking as unusable

I tried to find what the lines has no active route and does not have iBGP sync, marking as unusable mean, but I couldn't find anything on Google. Does anyone know what the problem is and why the route doesn't get into the active ones?

Best regards!

Re: BGP route on Maestro Active/Active are showing as inactive/unusable

Chris_Atkinson — Wed, 16 Jul 2025 11:15:17 GMT

Please review if sk129872 is relevant here.

Re: BGP route on Maestro Active/Active are showing as inactive/unusable

ajax — Wed, 16 Jul 2025 11:24:09 GMT

Hi!

Thanks for reply!

I checked this before and we don't have another active route to announced network. sk129872 not relevant here, i think

Re: BGP route on Maestro Active/Active are showing as inactive/unusable

Chris_Atkinson — Thu, 17 Jul 2025 00:05:22 GMT

Perhaps the example output is confusing.

Do you have the configuration set for bgp sync or not?

https://sc1.checkpoint.com/documents/R82/WebAdminGuides/EN/CP_R82_Gaia_Advanced_Routing_AdminGuide/Content/Topics-GARG/BGP-Configuring-in-Gaia-Clish-BGP-Confederation.htm?Highlight=bgp%20sync

Re: BGP route on Maestro Active/Active are showing as inactive/unusable

ajax — Wed, 16 Jul 2025 13:47:34 GMT

Yes, you are absolutely right! The problem was indeed in the enabled synchronization, after turning it off - everything worked! Thank you very much for your help!

Re: BGP route on Maestro Active/Active are showing as inactive/unusable

Chris_Atkinson — Wed, 16 Jul 2025 23:11:22 GMT

Glad it helped you. 🙂

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BGP route on Maestro Active/Active are showing as inactive/unusable

Re: BGP route on Maestro Active/Active are showing as inactive/unusable

Re: BGP route on Maestro Active/Active are showing as inactive/unusable

Re: BGP route on Maestro Active/Active are showing as inactive/unusable

Re: BGP route on Maestro Active/Active are showing as inactive/unusable

Re: BGP route on Maestro Active/Active are showing as inactive/unusable