rib-failure output difference between Cisco IOS 7200 and XR 9000

misbah_ul_haq2002 · ‎10-24-2022

Hi all,

I am getting rib-failure output difference between Cisco IOS 7200 and XR 9000.

7200 router showing bgp routes with r> (rib-failure and best)

9000 router showing bgp routes with *> (valid and best)

For Cisco IOS 7200 series: IP reachability is fine. OSPF is fine. BGP is fine. routes learned with bgp are advertising with r> (rib-failure and valid).

For Cisco XE 9000 series: IP reachability is fine. OSPF is fine. BGP is fine. routes learned with bgp are advertising with *> (valid and best).

Below pic is for Cisco IOS 7200 series routers.

Please see below configuration for PE1, P and PE2

PE1#sho run

Building configuration...

Current configuration : 1331 bytes

!

version 15.2

service timestamps debug datetime msec

service timestamps log datetime msec

!

hostname PE1

!

boot-start-marker

boot-end-marker

!

no aaa new-model

ip cef

!

no ipv6 cef

!

mpls label protocol ldp

multilink bundle-name authenticated

!

interface Loopback0

ip address 9.9.0.1 255.255.255.255

!

interface FastEthernet0/0

no ip address

shutdown

duplex full

!

interface Ethernet1/0

ip address 30.0.0.1 255.255.255.0

duplex full

mpls ip

!

interface Ethernet1/1

no ip address

shutdown

duplex full

!

interface Ethernet1/2

no ip address

shutdown

duplex full

!

interface Ethernet1/3

no ip address

shutdown

duplex full

!

router ospf 9

router-id 9.9.0.1

network 9.9.0.1 0.0.0.0 area 0

network 30.0.0.0 0.0.0.255 area 0

!

router bgp 9

bgp router-id 9.9.0.1

bgp log-neighbor-changes

no bgp default ipv4-unicast

neighbor 9.9.0.2 remote-as 9

neighbor 9.9.0.9 remote-as 9

neighbor 9.9.0.9 update-source Loopback0

!

address-family ipv4

network 9.9.0.1 mask 255.255.255.255

neighbor 9.9.0.2 activate

neighbor 9.9.0.9 activate

exit-address-family

!

ip forward-protocol nd

!

no ip http server

no ip http secure-server

!

mpls ldp router-id Loopback0

!

control-plane

!

line con 0

stopbits 1

line aux 0

stopbits 1

line vty 0 4

login

!

end

PE1#

PE1#sho ip int br

Interface IP-Address OK? Method Status Protocol

FastEthernet0/0 unassigned YES NVRAM administratively down down

Ethernet1/0 30.0.0.1 YES NVRAM up up

Ethernet1/1 unassigned YES NVRAM administratively down down

Ethernet1/2 unassigned YES NVRAM administratively down down

Ethernet1/3 unassigned YES NVRAM administratively down down

Loopback0 9.9.0.1 YES NVRAM up up

PE1#sho ip route

Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP

D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area

N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2

E1 - OSPF external type 1, E2 - OSPF external type 2

i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2

ia - IS-IS inter area, * - candidate default, U - per-user static route

o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP

+ - replicated route, % - next hop override

Gateway of last resort is not set

9.0.0.0/32 is subnetted, 3 subnets

C 9.9.0.1 is directly connected, Loopback0

O 9.9.0.2 [110/21] via 30.0.0.2, 00:14:05, Ethernet1/0

O 9.9.0.9 [110/11] via 30.0.0.2, 00:14:29, Ethernet1/0

30.0.0.0/8 is variably subnetted, 2 subnets, 2 masks

C 30.0.0.0/24 is directly connected, Ethernet1/0

L 30.0.0.1/32 is directly connected, Ethernet1/0

40.0.0.0/24 is subnetted, 1 subnets

O 40.0.0.0 [110/20] via 30.0.0.2, 00:14:29, Ethernet1/0

PE1#sho ip route ospf

Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP

D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area

N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2

E1 - OSPF external type 1, E2 - OSPF external type 2

i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2

ia - IS-IS inter area, * - candidate default, U - per-user static route

o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP

+ - replicated route, % - next hop override

Gateway of last resort is not set

9.0.0.0/32 is subnetted, 3 subnets

O 9.9.0.2 [110/21] via 30.0.0.2, 00:14:13, Ethernet1/0

O 9.9.0.9 [110/11] via 30.0.0.2, 00:14:37, Ethernet1/0

40.0.0.0/24 is subnetted, 1 subnets

O 40.0.0.0 [110/20] via 30.0.0.2, 00:14:37, Ethernet1/0

PE1#sho bgp summ

BGP router identifier 9.9.0.1, local AS number 9

BGP table version is 4, main routing table version 4

3 network entries using 432 bytes of memory

3 path entries using 240 bytes of memory

2/2 BGP path/bestpath attribute entries using 272 bytes of memory

0 BGP route-map cache entries using 0 bytes of memory

0 BGP filter-list cache entries using 0 bytes of memory

BGP using 944 total bytes of memory

BGP activity 3/0 prefixes, 3/0 paths, scan interval 60 secs

Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd

9.9.0.2 4 9 19 19 4 0 0 00:14:09 1

9.9.0.9 4 9 19 20 4 0 0 00:14:36 1

PE1#sho bgp

BGP table version is 4, local router ID is 9.9.0.1

Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,

r RIB-failure, S Stale, m multipath, b backup-path, f RT-Filter,

x best-external, a additional-path, c RIB-compressed,

Origin codes: i - IGP, e - EGP, ? - incomplete

RPKI validation codes: V valid, I invalid, N Not found

Network Next Hop Metric LocPrf Weight Path

*> 9.9.0.1/32 0.0.0.0 0 32768 i

r>i 9.9.0.2/32 9.9.0.2 0 100 0 i

r>i 9.9.0.9/32 9.9.0.9 0 100 0 i

PE1#

P#sho running-config

Building configuration...

Current configuration : 1425 bytes

!

version 15.2

service timestamps debug datetime msec

service timestamps log datetime msec

!

hostname P

!

boot-start-marker

boot-end-marker

!

no aaa new-model

ip cef

!

no ipv6 cef

!

mpls label protocol ldp

multilink bundle-name authenticated

!!

interface Loopback0

ip address 9.9.0.9 255.255.255.255

!

interface FastEthernet0/0

no ip address

shutdown

duplex full

!

interface Ethernet1/0

ip address 30.0.0.2 255.255.255.0

duplex full

mpls ip

!

interface Ethernet1/1

ip address 40.0.0.2 255.255.255.0

duplex full

mpls ip

!

interface Ethernet1/2

no ip address

shutdown

duplex full

!

interface Ethernet1/3

no ip address

shutdown

duplex full

!

router ospf 9

router-id 9.9.0.9

network 9.9.0.9 0.0.0.0 area 0

network 30.0.0.0 0.0.0.255 area 0

network 40.0.0.0 0.0.0.255 area 0

!

router bgp 9

bgp router-id 9.9.0.9

bgp log-neighbor-changes

no bgp default ipv4-unicast

neighbor 9.9.0.1 remote-as 9

neighbor 9.9.0.1 update-source Loopback0

neighbor 9.9.0.2 remote-as 9

neighbor 9.9.0.2 update-source Loopback0

!

address-family ipv4

network 9.9.0.9 mask 255.255.255.255

neighbor 9.9.0.1 activate

neighbor 9.9.0.2 activate

exit-address-family

!

ip forward-protocol nd

!

no ip http server

no ip http secure-server

!

mpls ldp router-id Loopback0

!

control-plane

!

line con 0

stopbits 1

line aux 0

stopbits 1

line vty 0 4

login

!

end

P#

P#sho ip int br

Interface IP-Address OK? Method Status Protocol

FastEthernet0/0 unassigned YES NVRAM administratively down down

Ethernet1/0 30.0.0.2 YES NVRAM up up

Ethernet1/1 40.0.0.2 YES NVRAM up up

Ethernet1/2 unassigned YES NVRAM administratively down down

Ethernet1/3 unassigned YES NVRAM administratively down down

Loopback0 9.9.0.9 YES NVRAM up up

P#sho ip route

Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP

D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area

N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2

E1 - OSPF external type 1, E2 - OSPF external type 2

i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2

ia - IS-IS inter area, * - candidate default, U - per-user static route

o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP

+ - replicated route, % - next hop override

Gateway of last resort is not set

9.0.0.0/32 is subnetted, 3 subnets

O 9.9.0.1 [110/11] via 30.0.0.1, 00:15:48, Ethernet1/0

O 9.9.0.2 [110/11] via 40.0.0.1, 00:15:34, Ethernet1/1

C 9.9.0.9 is directly connected, Loopback0

30.0.0.0/8 is variably subnetted, 2 subnets, 2 masks

C 30.0.0.0/24 is directly connected, Ethernet1/0

L 30.0.0.2/32 is directly connected, Ethernet1/0

40.0.0.0/8 is variably subnetted, 2 subnets, 2 masks

C 40.0.0.0/24 is directly connected, Ethernet1/1

L 40.0.0.2/32 is directly connected, Ethernet1/1

P#sho ip route ospf

Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP

D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area

N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2

E1 - OSPF external type 1, E2 - OSPF external type 2

i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2

ia - IS-IS inter area, * - candidate default, U - per-user static route

o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP

+ - replicated route, % - next hop override

Gateway of last resort is not set

9.0.0.0/32 is subnetted, 3 subnets

O 9.9.0.1 [110/11] via 30.0.0.1, 00:15:51, Ethernet1/0

O 9.9.0.2 [110/11] via 40.0.0.1, 00:15:37, Ethernet1/1

P#sho ip bg summ

BGP router identifier 9.9.0.9, local AS number 9

BGP table version is 4, main routing table version 4

3 network entries using 432 bytes of memory

3 path entries using 240 bytes of memory

2/2 BGP path/bestpath attribute entries using 272 bytes of memory

0 BGP route-map cache entries using 0 bytes of memory

0 BGP filter-list cache entries using 0 bytes of memory

BGP using 944 total bytes of memory

BGP activity 3/0 prefixes, 3/0 paths, scan interval 60 secs

Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd

9.9.0.1 4 9 21 21 4 0 0 00:15:53 1

9.9.0.2 4 9 21 21 4 0 0 00:15:38 1

P#sho ip bg

BGP table version is 4, local router ID is 9.9.0.9

Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,

r RIB-failure, S Stale, m multipath, b backup-path, f RT-Filter,

x best-external, a additional-path, c RIB-compressed,

Origin codes: i - IGP, e - EGP, ? - incomplete

RPKI validation codes: V valid, I invalid, N Not found

Network Next Hop Metric LocPrf Weight Path

r>i 9.9.0.1/32 9.9.0.1 0 100 0 i

r>i 9.9.0.2/32 9.9.0.2 0 100 0 i

*> 9.9.0.9/32 0.0.0.0 0 32768 i

P#

PE2#sh run

Building configuration...

Current configuration : 1350 bytes

!

version 15.2

service timestamps debug datetime msec

service timestamps log datetime msec

!

hostname PE2

!

boot-start-marker

boot-end-marker

!

no aaa new-model

ip cef

!

no ipv6 cef

!

mpls label protocol ldp

multilink bundle-name authenticated

!

interface Loopback0

ip address 9.9.0.2 255.255.255.255

!

interface FastEthernet0/0

no ip address

shutdown

duplex full

!

interface Ethernet1/0

no ip address

shutdown

duplex full

!

interface Ethernet1/1

ip address 40.0.0.1 255.255.255.0

duplex full

mpls ip

!

interface Ethernet1/2

no ip address

shutdown

duplex full

!

interface Ethernet1/3

no ip address

shutdown

duplex full

!

router ospf 9

router-id 9.9.0.2

network 9.9.0.2 0.0.0.0 area 0

network 40.0.0.0 0.0.0.255 area 0

!

router bgp 9

bgp log-neighbor-changes

no bgp default ipv4-unicast

neighbor 9.9.0.1 remote-as 9

neighbor 9.9.0.1 update-source Loopback0

neighbor 9.9.0.9 remote-as 9

neighbor 9.9.0.9 update-source Loopback0

!

address-family ipv4

network 9.9.0.2 mask 255.255.255.255

neighbor 9.9.0.1 activate

neighbor 9.9.0.9 activate

exit-address-family

!

ip forward-protocol nd

!

no ip http server

no ip http secure-server

!

mpls ldp router-id Loopback0

!

control-plane

!

line con 0

stopbits 1

line aux 0

stopbits 1

line vty 0 4

login

!

end

PE2#

PE2#sho ip int br

Interface IP-Address OK? Method Status Protocol

FastEthernet0/0 unassigned YES NVRAM administratively down down

Ethernet1/0 unassigned YES NVRAM administratively down down

Ethernet1/1 40.0.0.1 YES NVRAM up up

Ethernet1/2 unassigned YES NVRAM administratively down down

Ethernet1/3 unassigned YES NVRAM administratively down down

Loopback0 9.9.0.2 YES NVRAM up up

PE2#

PE2#sho ip route

Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP

D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area

N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2

E1 - OSPF external type 1, E2 - OSPF external type 2

i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2

ia - IS-IS inter area, * - candidate default, U - per-user static route

o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP

+ - replicated route, % - next hop override

Gateway of last resort is not set

9.0.0.0/32 is subnetted, 3 subnets

O 9.9.0.1 [110/21] via 40.0.0.2, 00:16:43, Ethernet1/1

C 9.9.0.2 is directly connected, Loopback0

O 9.9.0.9 [110/11] via 40.0.0.2, 00:16:43, Ethernet1/1

30.0.0.0/24 is subnetted, 1 subnets

O 30.0.0.0 [110/20] via 40.0.0.2, 00:16:43, Ethernet1/1

40.0.0.0/8 is variably subnetted, 2 subnets, 2 masks

C 40.0.0.0/24 is directly connected, Ethernet1/1

L 40.0.0.1/32 is directly connected, Ethernet1/1

PE2#

PE2#sho ip route osp

Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP

D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area

N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2

E1 - OSPF external type 1, E2 - OSPF external type 2

i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2

ia - IS-IS inter area, * - candidate default, U - per-user static route

o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP

+ - replicated route, % - next hop override

Gateway of last resort is not set

9.0.0.0/32 is subnetted, 3 subnets

O 9.9.0.1 [110/21] via 40.0.0.2, 00:16:52, Ethernet1/1

O 9.9.0.9 [110/11] via 40.0.0.2, 00:16:52, Ethernet1/1

30.0.0.0/24 is subnetted, 1 subnets

O 30.0.0.0 [110/20] via 40.0.0.2, 00:16:52, Ethernet1/1

PE2#

PE2#sho ip bgp summ

BGP router identifier 9.9.0.2, local AS number 9

BGP table version is 4, main routing table version 4

3 network entries using 432 bytes of memory

3 path entries using 240 bytes of memory

2/2 BGP path/bestpath attribute entries using 272 bytes of memory

0 BGP route-map cache entries using 0 bytes of memory

0 BGP filter-list cache entries using 0 bytes of memory

BGP using 944 total bytes of memory

BGP activity 3/0 prefixes, 3/0 paths, scan interval 60 secs

Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd

9.9.0.1 4 9 22 22 4 0 0 00:16:41 1

9.9.0.9 4 9 22 22 4 0 0 00:16:53 1

PE2#

PE2#sho ip bgp

BGP table version is 4, local router ID is 9.9.0.2

Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,

r RIB-failure, S Stale, m multipath, b backup-path, f RT-Filter,

x best-external, a additional-path, c RIB-compressed,

Origin codes: i - IGP, e - EGP, ? - incomplete

RPKI validation codes: V valid, I invalid, N Not found

Network Next Hop Metric LocPrf Weight Path

r>i 9.9.0.1/32 9.9.0.1 0 100 0 i

*> 9.9.0.2/32 0.0.0.0 0 32768 i

r>i 9.9.0.9/32 9.9.0.9 0 100 0 i

PE2#

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@

Please see below configuration for XR77, XR44 and XR66

RP/0/0/CPU0:XR77#show running-config

Mon Oct 24 08:22:50.724 UTC

Building configuration...

!! IOS XR Configuration 6.1.3

!! Last configuration change at Fri Oct 21 15:28:47 2022 by misbah

!

hostname XR77

interface Loopback0

ipv4 address 9.9.0.7 255.255.255.0

!

interface MgmtEth0/0/CPU0/0

shutdown

!

interface GigabitEthernet0/0/0/0

ipv4 address 9.9.47.7 255.255.255.0

!

interface GigabitEthernet0/0/0/1

shutdown

!

interface GigabitEthernet0/0/0/2

shutdown

!

router ospf 9

router-id 9.9.0.7

area 0

interface Loopback0

!

interface GigabitEthernet0/0/0/0

!

router bgp 9

bgp router-id 9.9.0.7

address-family ipv4 unicast

network 9.9.0.7/32

!

neighbor 9.9.0.4

remote-as 9

update-source Loopback0

address-family ipv4 unicast

next-hop-self

!

neighbor 9.9.0.6

remote-as 9

update-source Loopback0

address-family ipv4 unicast

!

end

RP/0/0/CPU0:XR77#

RP/0/0/CPU0:XR77#sho ip int br

Mon Oct 24 08:22:57.553 UTC

Interface IP-Address Status Protocol Vrf-Name

Loopback0 9.9.0.7 Up Up default

MgmtEth0/0/CPU0/0 unassigned Shutdown Down default

GigabitEthernet0/0/0/0 9.9.47.7 Up Up default

GigabitEthernet0/0/0/1 unassigned Shutdown Down default

GigabitEthernet0/0/0/2 unassigned Shutdown Down default

RP/0/0/CPU0:XR77#

RP/0/0/CPU0:XR77#show route

Mon Oct 24 08:23:08.163 UTC

Codes: C - connected, S - static, R - RIP, B - BGP, (>) - Diversion path

D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area

N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2

E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP

i - ISIS, L1 - IS-IS level-1, L2 - IS-IS level-2

ia - IS-IS inter area, su - IS-IS summary null, * - candidate default

U - per-user static route, o - ODR, L - local, G - DAGR, l - LISP

A - access/subscriber, a - Application route

M - mobile route, r - RPL, (!) - FRR Backup path

Gateway of last resort is not set

C 9.9.0.0/24 is directly connected, 00:04:40, Loopback0

O 9.9.0.4/32 [110/2] via 9.9.47.4, 00:03:18, GigabitEthernet0/0/0/0

O 9.9.0.6/32 [110/3] via 9.9.47.4, 00:03:08, GigabitEthernet0/0/0/0

L 9.9.0.7/32 is directly connected, 00:04:40, Loopback0

O 9.9.46.0/24 [110/2] via 9.9.47.4, 00:03:12, GigabitEthernet0/0/0/0

C 9.9.47.0/24 is directly connected, 00:04:36, GigabitEthernet0/0/0/0

L 9.9.47.7/32 is directly connected, 00:04:36, GigabitEthernet0/0/0/0

RP/0/0/CPU0:XR77#

RP/0/0/CPU0:XR77#sho route ospf

Mon Oct 24 08:23:14.932 UTC

O 9.9.0.4/32 [110/2] via 9.9.47.4, 00:03:25, GigabitEthernet0/0/0/0

O 9.9.0.6/32 [110/3] via 9.9.47.4, 00:03:14, GigabitEthernet0/0/0/0

O 9.9.46.0/24 [110/2] via 9.9.47.4, 00:03:19, GigabitEthernet0/0/0/0

RP/0/0/CPU0:XR77#

RP/0/0/CPU0:XR77#sho bgp summ

Mon Oct 24 08:23:21.032 UTC

BGP router identifier 9.9.0.7, local AS number 9

BGP generic scan interval 60 secs

Non-stop routing is enabled

BGP table state: Active

Table ID: 0xe0000000 RD version: 5

BGP main routing table version 5

BGP NSR Initial initsync version 2 (Reached)

BGP NSR/ISSU Sync-Group versions 0/0

BGP scan interval 60 secs

BGP is operating in STANDALONE mode.

Process RcvTblVer bRIB/RIB LabelVer ImportVer SendTblVer StandbyVer

Speaker 5 5 5 5 5 0

Neighbor Spk AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down St/PfxRcd

9.9.0.4 0 9 7 7 5 0 0 00:03:20 1

9.9.0.6 0 9 7 6 5 0 0 00:03:18 1

RP/0/0/CPU0:XR77#

RP/0/0/CPU0:XR77#sho bgp

Mon Oct 24 08:23:25.301 UTC

BGP router identifier 9.9.0.7, local AS number 9

BGP generic scan interval 60 secs

Non-stop routing is enabled

BGP table state: Active

Table ID: 0xe0000000 RD version: 5

BGP main routing table version 5

BGP NSR Initial initsync version 2 (Reached)

BGP NSR/ISSU Sync-Group versions 0/0

BGP scan interval 60 secs

Status codes: s suppressed, d damped, h history, * valid, > best

i - internal, r RIB-failure, S stale, N Nexthop-discard

Origin codes: i - IGP, e - EGP, ? - incomplete

Network Next Hop Metric LocPrf Weight Path

*>i9.9.0.4/32 9.9.0.4 0 100 0 i

*>i9.9.0.6/32 9.9.0.6 0 100 0 i

*> 9.9.0.7/32 0.0.0.0 0 32768 i

Processed 3 prefixes, 3 paths

RP/0/0/CPU0:XR77#

RP/0/0/CPU0:XR44#show running-config

Mon Oct 24 08:24:35.728 UTC

Building configuration...

!! IOS XR Configuration 6.1.3

!! Last configuration change at Fri Oct 21 15:30:54 2022 by misbah

!

hostname XR44

interface Loopback0

ipv4 address 9.9.0.4 255.255.255.255

!

interface MgmtEth0/0/CPU0/0

shutdown

!

interface GigabitEthernet0/0/0/0

ipv4 address 9.9.47.4 255.255.255.0

!

interface GigabitEthernet0/0/0/1

ipv4 address 9.9.46.4 255.255.255.0

!

interface GigabitEthernet0/0/0/2

shutdown

!

router ospf 9

router-id 9.9.0.4

area 0

interface Loopback0

!

interface GigabitEthernet0/0/0/0

!

interface GigabitEthernet0/0/0/1

!

router bgp 9

bgp router-id 9.9.0.4

address-family ipv4 unicast

network 9.9.0.4/32

!

neighbor 9.9.0.6

remote-as 9

update-source Loopback0

address-family ipv4 unicast

next-hop-self

!

neighbor 9.9.0.7

remote-as 9

update-source Loopback0

address-family ipv4 unicast

next-hop-self

!

end

RP/0/0/CPU0:XR44#

RP/0/0/CPU0:XR44#sho ip int br

Mon Oct 24 08:24:40.208 UTC

Interface IP-Address Status Protocol Vrf-Name

Loopback0 9.9.0.4 Up Up default

MgmtEth0/0/CPU0/0 unassigned Shutdown Down default

GigabitEthernet0/0/0/0 9.9.47.4 Up Up default

GigabitEthernet0/0/0/1 9.9.46.4 Up Up default

GigabitEthernet0/0/0/2 unassigned Shutdown Down default

RP/0/0/CPU0:XR44#

RP/0/0/CPU0:XR44#sho route

Mon Oct 24 08:24:47.867 UTC

Codes: C - connected, S - static, R - RIP, B - BGP, (>) - Diversion path

D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area

N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2

E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP

i - ISIS, L1 - IS-IS level-1, L2 - IS-IS level-2

ia - IS-IS inter area, su - IS-IS summary null, * - candidate default

U - per-user static route, o - ODR, L - local, G - DAGR, l - LISP

A - access/subscriber, a - Application route

M - mobile route, r - RPL, (!) - FRR Backup path

Gateway of last resort is not set

L 9.9.0.4/32 is directly connected, 00:05:46, Loopback0

O 9.9.0.6/32 [110/2] via 9.9.46.6, 00:04:55, GigabitEthernet0/0/0/1

O 9.9.0.7/32 [110/2] via 9.9.47.7, 00:05:00, GigabitEthernet0/0/0/0

C 9.9.46.0/24 is directly connected, 00:05:44, GigabitEthernet0/0/0/1

L 9.9.46.4/32 is directly connected, 00:05:44, GigabitEthernet0/0/0/1

C 9.9.47.0/24 is directly connected, 00:05:44, GigabitEthernet0/0/0/0

L 9.9.47.4/32 is directly connected, 00:05:44, GigabitEthernet0/0/0/0

RP/0/0/CPU0:XR44#

RP/0/0/CPU0:XR44#sho route ipv

ipv4 ipv6

RP/0/0/CPU0:XR44#sho route ospf

Mon Oct 24 08:24:57.247 UTC

O 9.9.0.6/32 [110/2] via 9.9.46.6, 00:05:04, GigabitEthernet0/0/0/1

O 9.9.0.7/32 [110/2] via 9.9.47.7, 00:05:10, GigabitEthernet0/0/0/0

RP/0/0/CPU0:XR44#

RP/0/0/CPU0:XR44#sho bgp summary

Mon Oct 24 08:25:04.216 UTC

BGP router identifier 9.9.0.4, local AS number 9

BGP generic scan interval 60 secs

Non-stop routing is enabled

BGP table state: Active

Table ID: 0xe0000000 RD version: 5

BGP main routing table version 5

BGP NSR Initial initsync version 2 (Reached)

BGP NSR/ISSU Sync-Group versions 0/0

BGP scan interval 60 secs

BGP is operating in STANDALONE mode.

Process RcvTblVer bRIB/RIB LabelVer ImportVer SendTblVer StandbyVer

Speaker 5 5 5 5 5 0

Neighbor Spk AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down St/PfxRcd

9.9.0.6 0 9 9 9 5 0 0 00:05:05 1

9.9.0.7 0 9 9 9 5 0 0 00:05:06 1

RP/0/0/CPU0:XR44#

RP/0/0/CPU0:XR44#sho bgp

Mon Oct 24 08:25:08.056 UTC

BGP router identifier 9.9.0.4, local AS number 9

BGP generic scan interval 60 secs

Non-stop routing is enabled

BGP table state: Active

Table ID: 0xe0000000 RD version: 5

BGP main routing table version 5

BGP NSR Initial initsync version 2 (Reached)

BGP NSR/ISSU Sync-Group versions 0/0

BGP scan interval 60 secs

Status codes: s suppressed, d damped, h history, * valid, > best

i - internal, r RIB-failure, S stale, N Nexthop-discard

Origin codes: i - IGP, e - EGP, ? - incomplete

Network Next Hop Metric LocPrf Weight Path

*> 9.9.0.4/32 0.0.0.0 0 32768 i

*>i9.9.0.6/32 9.9.0.6 0 100 0 i

*>i9.9.0.7/32 9.9.0.7 0 100 0 i

Processed 3 prefixes, 3 paths

RP/0/0/CPU0:XR44#

RP/0/0/CPU0:XR66#sho run

Mon Oct 24 08:25:29.255 UTC

Building configuration...

!! IOS XR Configuration 6.1.3

!! Last configuration change at Fri Oct 21 14:08:08 2022 by misbah

!

hostname XR66

interface Loopback0

ipv4 address 9.9.0.6 255.255.255.255

!

interface MgmtEth0/0/CPU0/0

shutdown

!

interface GigabitEthernet0/0/0/0

shutdown

!

interface GigabitEthernet0/0/0/1

ipv4 address 9.9.46.6 255.255.255.0

!

interface GigabitEthernet0/0/0/2

shutdown

!

router ospf 9

router-id 9.9.0.6

area 0

interface Loopback0

!

interface GigabitEthernet0/0/0/1

!

router bgp 9

bgp router-id 9.9.0.6

address-family ipv4 unicast

network 9.9.0.6/32

!

neighbor 9.9.0.4

remote-as 9

update-source Loopback0

address-family ipv4 unicast

!

neighbor 9.9.0.7

remote-as 9

update-source Loopback0

address-family ipv4 unicast

!

end

RP/0/0/CPU0:XR66#sho ip int br

Mon Oct 24 08:25:34.705 UTC

Interface IP-Address Status Protocol Vrf-Name

Loopback0 9.9.0.6 Up Up default

MgmtEth0/0/CPU0/0 unassigned Shutdown Down default

GigabitEthernet0/0/0/0 unassigned Shutdown Down default

GigabitEthernet0/0/0/1 9.9.46.6 Up Up default

GigabitEthernet0/0/0/2 unassigned Shutdown Down default

RP/0/0/CPU0:XR66#

RP/0/0/CPU0:XR66#sho route

Mon Oct 24 08:25:38.445 UTC

Codes: C - connected, S - static, R - RIP, B - BGP, (>) - Diversion path

D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area

N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2

E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP

i - ISIS, L1 - IS-IS level-1, L2 - IS-IS level-2

ia - IS-IS inter area, su - IS-IS summary null, * - candidate default

U - per-user static route, o - ODR, L - local, G - DAGR, l - LISP

A - access/subscriber, a - Application route

M - mobile route, r - RPL, (!) - FRR Backup path

Gateway of last resort is not set

O 9.9.0.4/32 [110/2] via 9.9.46.4, 00:05:45, GigabitEthernet0/0/0/1

L 9.9.0.6/32 is directly connected, 00:06:28, Loopback0

O 9.9.0.7/32 [110/3] via 9.9.46.4, 00:05:45, GigabitEthernet0/0/0/1

C 9.9.46.0/24 is directly connected, 00:06:25, GigabitEthernet0/0/0/1

L 9.9.46.6/32 is directly connected, 00:06:25, GigabitEthernet0/0/0/1

O 9.9.47.0/24 [110/2] via 9.9.46.4, 00:05:45, GigabitEthernet0/0/0/1

RP/0/0/CPU0:XR66#

RP/0/0/CPU0:XR66#sho route ospf

Mon Oct 24 08:25:41.454 UTC

O 9.9.0.4/32 [110/2] via 9.9.46.4, 00:05:48, GigabitEthernet0/0/0/1

O 9.9.0.7/32 [110/3] via 9.9.46.4, 00:05:48, GigabitEthernet0/0/0/1

O 9.9.47.0/24 [110/2] via 9.9.46.4, 00:05:48, GigabitEthernet0/0/0/1

RP/0/0/CPU0:XR66#

RP/0/0/CPU0:XR66#sho bgp summary

Mon Oct 24 08:25:47.014 UTC

BGP router identifier 9.9.0.6, local AS number 9

BGP generic scan interval 60 secs

Non-stop routing is enabled

BGP table state: Active

Table ID: 0xe0000000 RD version: 5

BGP main routing table version 5

BGP NSR Initial initsync version 2 (Reached)

BGP NSR/ISSU Sync-Group versions 0/0

BGP scan interval 60 secs

BGP is operating in STANDALONE mode.

Process RcvTblVer bRIB/RIB LabelVer ImportVer SendTblVer StandbyVer

Speaker 5 5 5 5 5 0

Neighbor Spk AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down St/PfxRcd

9.9.0.4 0 9 9 9 5 0 0 00:05:47 1

9.9.0.7 0 9 8 9 5 0 0 00:05:45 1

RP/0/0/CPU0:XR66#

RP/0/0/CPU0:XR66#sho bgp

Mon Oct 24 08:25:50.664 UTC

BGP router identifier 9.9.0.6, local AS number 9

BGP generic scan interval 60 secs

Non-stop routing is enabled

BGP table state: Active

Table ID: 0xe0000000 RD version: 5

BGP main routing table version 5

BGP NSR Initial initsync version 2 (Reached)

BGP NSR/ISSU Sync-Group versions 0/0

BGP scan interval 60 secs

Status codes: s suppressed, d damped, h history, * valid, > best

i - internal, r RIB-failure, S stale, N Nexthop-discard

Origin codes: i - IGP, e - EGP, ? - incomplete

Network Next Hop Metric LocPrf Weight Path

*>i9.9.0.4/32 9.9.0.4 0 100 0 i

*> 9.9.0.6/32 0.0.0.0 0 32768 i

*>i9.9.0.7/32 9.9.0.7 0 100 0 i

Processed 3 prefixes, 3 paths

RP/0/0/CPU0:XR66#