The OSPF process ID in the routing table is incorrect.

[Jinl-jia]

Description

The OSPF process ID in the routing table is incorrect.Its data seems to have been truncated.

Version

181234# show version 
FRRouting 10.3-dev (181234) on Linux(5.4.0-150-generic).
Copyright 1996-2005 Kunihiro Ishiguro, et al.
configured with:
    '--prefix=/usr/local' '--sysconfdir=/etc/frr' '--localstatedir=/var/run/frr' '--enable-vtysh' '--enable-user=network' '--enable-group=network' '--with-libssl-prefix=/usr'
181234#

How to reproduce

181234# show ip route
Codes: K - kernel route, C - connected, L - local, S - static,
R - RIP, O - OSPF, I - IS-IS, B - BGP, E - EIGRP, N - NHRP,
T - Table, v - VNC, V - VNC-Direct, A - Babel, F - PBR,
f - OpenFabric, t - Table-Direct,
> - selected route, * - FIB route, q - queued, r - rejected, b - backup
t - trapped, o - offload failure

O[232] 192.168.8.0/24 [110/100] is directly connected, enp0s3, weight 1, 00:00:14
C>* 192.168.8.0/24 is directly connected, enp0s3, 00:00:14
L>* 192.168.8.101/32 is directly connected, enp0s3, 00:00:14
181234# show ip ospf route
% OSPF is not enabled in vrf default
% OSPF is not enabled in vrf default

OSPF Instance: 1000

============ OSPF network routing table ============
N 192.168.8.0/24 [100] area: 0.0.0.0
directly attached to enp0s3

============ OSPF router routing table =============
R 192.168.8.14 [100] area: 0.0.0.0, ASBR
via 192.168.8.14, enp0s3

============ OSPF external routing table ===========

181234# show version
FRRouting 10.3-dev (181234) on Linux(5.4.0-150-generic).
Copyright 1996-2005 Kunihiro Ishiguro, et al.
configured with:
'--pref

Expected behavior

181234# show ip route
Codes: K - kernel route, C - connected, L - local, S - static,
R - RIP, O - OSPF, I - IS-IS, B - BGP, E - EIGRP, N - NHRP,
T - Table, v - VNC, V - VNC-Direct, A - Babel, F - PBR,
f - OpenFabric, t - Table-Direct,
> - selected route, * - FIB route, q - queued, r - rejected, b - backup
t - trapped, o - offload failure

O[1000] 192.168.8.0/24 [110/100] is directly connected, enp0s3, weight 1, 00:00:14
C>* 192.168.8.0/24 is directly connected, enp0s3, 00:00:14
L>* 192.168.8.101/32 is directly connected, enp0s3, 00:00:14

Actual behavior

1000 [3E8] only E8 will be shown.
This BUG also appear in redistribute ospf id
example: redistribute ospf 232 can match the routes from ospf 1000.

Additional context

No response

Checklist

• I have searched the open issues for this bug.
• I have not included sensitive information in this report.

[aceelindem]

You're going to have to describe the scenario better if you want anyone to spend time on this. I don't know how you'd expect anyone to know have any idea of what the problem is from a description of your expected versus actual show output. You need to include the topology, configuration (including VRFs if you think that is the problem), and whether or not the route that is alledgedly missing is not advertised or not installed.

[Jinl-jia]

@aceelindem The routes learned from OSPF 1000 should be "O[1000] 192.168.8.0/24 [110/100] is directly connected, enp0s3, weight 1, 00:00:14" ,but the current situation is "O[232] 192.168.8.0/24 [110/100] is directly connected, enp0s3, weight 1, 00:00:14"

[Jinl-jia]

@aceelindem
router bgp 1
!
address-family ipv4 unicast
redistribute ospf 232
exit-address-family
exit
!
router ospf 1000
ospf router-id 5.5.5.5
exit
!
BGP can redistribute the route form ospf 1000

[mjstapp]

I tried that config snip, but I don't see the problem - the outputs look correct to me. As Acee said, there is probably something else going on in your environment?

[donaldsharp]

in the broken state can you show us the output of ps -ef | grep ospf

[Jinl-jia]

@mjstapp please check this
(none)# show ip bgp
No BGP prefixes displayed, 0 exist
(none)# con
(none)(config)# router bgp 100
(none)(config-router)# address-family ipv4
(none)(config-router-af)# redistribute ospf 1000
(none)(config-router-af)# end
(none)# show ip bgp
No BGP prefixes displayed, 0 exist
(none)# configure
(none)(config)# router bgp 100
(none)(config-router)# address-family ipv4
(none)(config-router-af)# no redistribute ospf 1000
(none)(config-router-af)# redistribute ospf 232
(none)(config-router-af)# end
(none)# show ip bgp
BGP table version is 5, local router ID is 192.168.1.252, vrf id 0
Default local pref 100, local AS 100
Status codes: s suppressed, d damped, h history, * valid, > best, = multipath,
i internal, r RIB-failure, S Stale, R Removed
Nexthop codes: @NNN nexthop's vrf id, < announce-nh-self
Origin codes: i - IGP, e - EGP, ? - incomplete
RPKI validation codes: V valid, I invalid, N Not found

Network          Next Hop            Metric LocPrf Weight Path

*> 10.20.0.0/24 192.168.1.254 11 32768 ?

Displayed 1 routes and 1 total paths
(none)# show ip ospf route
% OSPF is not enabled in vrf default

OSPF Instance: 1000

============ OSPF network routing table ============
N 192.168.1.0/24 [10] area: 0.0.0.0
directly attached to VLAN1

============ OSPF router routing table =============
R 100.100.100.254 [10] area: 0.0.0.0, ASBR
via 192.168.1.254, VLAN1

============ OSPF external routing table ===========
N E1 10.20.0.0/24 [11] tag: 0
via 192.168.1.254, VLAN1

(none)#