RP/0/RP0/CPU0:CE-A1#show version Mon Oct 12 10:03:03.259 UTC Cisco IOS XR Software, Version 26.1.1 LNT Copyright (c) 2013-2026 by Cisco Systems, Inc. Build Information: Built By : cisco Built On : Thu Feb 26 03:41:18 UTC 2026 Build Host : iox-lnx-054 Workspace : /auto/srcarchive12/prod/26.1.1/xrd-control-plane/ws/ Version : 26.1.1 Label : 26.1.1 cisco XRd Control Plane cisco XRd-CP-C-01 processor with 248GB of memory CE-A1 uptime is 12 minutes XRd Control Plane Container RP/0/RP0/CPU0:CE-A1#show interface description Mon Oct 12 10:03:03.449 UTC Interface Status Protocol Description -------------------------------------------------------------------------------- Lo0 up up Lo1 up up customer A 10.1.1.1/32 Nu0 up up Mg0/RP0/CPU0/0 up up management Gi0/0/0/0 up up to PE1 (172.16.1.0/24) Gi0/0/0/1 up up backdoor to CE-A2 (10.1.9.0/24) Gi0/0/0/2 admin-down admin-down Gi0/0/0/3 admin-down admin-down RP/0/RP0/CPU0:CE-A1#show route Mon Oct 12 10:03:03.760 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, t - Traffic Engineering, (!) - FRR Backup path s - local SRv6 route, z - local IID route Gateway of last resort is not set O E2 10.0.101.1/32 [110/1] via 172.16.1.1, 00:03:55, GigabitEthernet0/0/0/0 O E2 10.0.102.1/32 [110/1] via 172.16.1.1, 00:08:48, GigabitEthernet0/0/0/0 L 10.1.1.1/32 is directly connected, 00:10:32, Loopback1 O 10.1.2.1/32 [110/4] via 172.16.1.1, 00:03:55, GigabitEthernet0/0/0/0 C 10.1.9.0/24 is directly connected, 00:10:28, GigabitEthernet0/0/0/1 L 10.1.9.1/32 is directly connected, 00:10:28, GigabitEthernet0/0/0/1 L 11.11.11.11/32 is directly connected, 00:10:32, Loopback0 C 172.16.1.0/24 is directly connected, 00:10:28, GigabitEthernet0/0/0/0 L 172.16.1.2/32 is directly connected, 00:10:28, GigabitEthernet0/0/0/0 O 172.16.2.0/24 [110/3] via 172.16.1.1, 00:03:55, GigabitEthernet0/0/0/0 RP/0/RP0/CPU0:CE-A1#show route static Mon Oct 12 10:03:03.978 UTC % No matching routes found RP/0/RP0/CPU0:CE-A1#show cef Mon Oct 12 10:03:04.266 UTC Prefix Next Hop Interface ------------------- ------------------- ------------------ 0.0.0.0/0 drop default handler 0.0.0.0/32 broadcast 10.0.101.1/32 172.16.1.1/32 GigabitEthernet0/0/0/0 10.0.102.1/32 172.16.1.1/32 GigabitEthernet0/0/0/0 10.1.1.1/32 receive Loopback1 10.1.2.1/32 172.16.1.1/32 GigabitEthernet0/0/0/0 10.1.9.0/24 attached GigabitEthernet0/0/0/1 10.1.9.0/32 broadcast GigabitEthernet0/0/0/1 10.1.9.1/32 receive GigabitEthernet0/0/0/1 10.1.9.2/32 10.1.9.2/32 GigabitEthernet0/0/0/1 10.1.9.255/32 broadcast GigabitEthernet0/0/0/1 11.11.11.11/32 receive Loopback0 172.16.1.0/24 attached GigabitEthernet0/0/0/0 172.16.1.0/32 broadcast GigabitEthernet0/0/0/0 172.16.1.1/32 172.16.1.1/32 GigabitEthernet0/0/0/0 172.16.1.2/32 receive GigabitEthernet0/0/0/0 172.16.1.255/32 broadcast GigabitEthernet0/0/0/0 172.16.2.0/24 172.16.1.1/32 GigabitEthernet0/0/0/0 224.0.0.0/4 0.0.0.0/32 224.0.0.0/24 receive 255.255.255.255/32 broadcast RP/0/RP0/CPU0:CE-A1#show ipv4 interface brief Mon Oct 12 10:03:04.644 UTC Interface IP-Address Status Protocol Vrf-Name Loopback0 11.11.11.11 Up Up default Loopback1 10.1.1.1 Up Up default MgmtEth0/RP0/CPU0/0 10.19.7.21 Up Up Mgmt GigabitEthernet0/0/0/0 172.16.1.2 Up Up default GigabitEthernet0/0/0/1 10.1.9.1 Up Up default GigabitEthernet0/0/0/2 unassigned Shutdown Down default GigabitEthernet0/0/0/3 unassigned Shutdown Down default RP/0/RP0/CPU0:CE-A1#show arp Mon Oct 12 10:03:04.992 UTC ------------------------------------------------------------------------------- 0/RP0/CPU0 ------------------------------------------------------------------------------- Address Age Hardware Addr State Type Interface 10.1.9.1 - 5254.0068.3e7a Interface ARPA GigabitEthernet0/0/0/1 10.1.9.2 00:10:02 5254.001f.7f44 Dynamic ARPA GigabitEthernet0/0/0/1 172.16.1.1 00:10:11 5254.0013.83d0 Dynamic ARPA GigabitEthernet0/0/0/0 172.16.1.2 - 5254.001b.0f06 Interface ARPA GigabitEthernet0/0/0/0 RP/0/RP0/CPU0:CE-A1#show ospf Mon Oct 12 10:03:05.256 UTC Routing Process "ospf 1" with ID 11.11.11.11 Role: Primary Active NSR (Non-stop routing) is Enabled Supports only single TOS(TOS0) routes Supports opaque LSA Maximum number of non self-generated LSA allowed 500000 Current number of non self-generated LSA 5 Threshold for warning message 75% Ignore-time 5 minutes, reset-time 10 minutes Ignore-count allowed 5, current ignore-count 0 Maximum number of external prefixes per router 50000 (suppress-neighbor) Warning threshold 75% Maximum Exchange time 10 Hold time 5 Max Recovery count 300 Router is not originating router-LSAs with maximum metric Initial SPF schedule delay 50 msecs Minimum hold time between two consecutive SPFs 200 msecs Maximum wait time between two consecutive SPFs 5000 msecs Initial LSA throttle delay 50 msecs Minimum hold time for LSA throttle 200 msecs Maximum wait time for LSA throttle 5000 msecs Minimum LSA interval 200 msecs. Minimum LSA arrival 100 msecs LSA refresh interval 1800 seconds Flood pacing interval 33 msecs. Retransmission pacing interval 66 msecs Adjacency stagger enabled; initial (per area): 2, maximum: 64 Number of neighbors forming: 0, 2 full Maximum number of configured interfaces 1024 Number of external LSA 2. Checksum Sum 0x000f32 Number of opaque AS LSA 0. Checksum Sum 00000000 Number of DCbitless external and opaque AS LSA 0 Number of DoNotAge external and opaque AS LSA 0 Number of areas in this router is 1. 1 normal 0 stub 0 nssa External flood list length 0 SNMP trap is enabled LSD not connected, revision 0 Segment Routing Global Block default (16000-23999), not allocated Segment Routing Local Block, unknown Segment Routing prefix-sid-map, Advertise local: Disabled, Receive remote: Disabled Strict-SPF capability is enabled Area 1 Number of interfaces in this area is 3 SPF algorithm executed 11 times Number of LSA 4. Checksum Sum 0x021733 Number of opaque link LSA 0. Checksum Sum 00000000 Number of DCbitless LSA 0 Number of indication LSA 0 Number of DoNotAge LSA 0 Flood list length 0 Number of LFA enabled interfaces 0, LFA revision 0 Number of Per Prefix LFA enabled interfaces 0 Number of neighbors forming in staggered mode 0, 2 full RP/0/RP0/CPU0:CE-A1#show ospf neighbor Mon Oct 12 10:03:06.294 UTC * Indicates MADJ interface # Indicates Neighbor awaiting BFD session up Neighbors for OSPF 1 Neighbor ID Pri State Dead Time Address Interface 100.1.1.1 1 FULL/ - 00:00:39 172.16.1.1 GigabitEthernet0/0/0/0 Neighbor is up for 00:10:12 12.12.12.12 1 FULL/ - 00:00:34 10.1.9.2 GigabitEthernet0/0/0/1 Neighbor is up for 00:10:03 Total neighbor count: 2 RP/0/RP0/CPU0:CE-A1#show ospf interface brief Mon Oct 12 10:03:07.291 UTC * Indicates MADJ interface, (P) Indicates fast detect hold down state Interfaces for OSPF 1 Interface PID Area IP Address/Mask Cost State Nbrs F/C Lo1 1 1 10.1.1.1/32 1 LOOP 0/0 Gi0/0/0/0 1 1 172.16.1.2/24 1 P2P 1/1 Gi0/0/0/1 1 1 10.1.9.1/24 100 P2P 1/1 RP/0/RP0/CPU0:CE-A1#show ospf database Mon Oct 12 10:03:08.123 UTC OSPF Router with ID (11.11.11.11) (Process ID 1) Router Link States (Area 1) Link ID ADV Router Age Seq# Checksum Link count 11.11.11.11 11.11.11.11 604 0x80000004 0x002a5a 5 12.12.12.12 12.12.12.12 598 0x80000004 0x00df99 5 100.1.1.1 100.1.1.1 241 0x80000003 0x00fe2c 3 100.2.2.2 100.2.2.2 241 0x80000003 0x002cf6 3 Type-5 AS External Link States Link ID ADV Router Age Seq# Checksum Tag 10.0.101.1 100.2.2.2 534 0x80000001 0x00940b 3489725929 10.0.102.1 100.1.1.1 533 0x80000001 0x009e03 3489725929 RP/0/RP0/CPU0:CE-A1#show ospf database router Mon Oct 12 10:03:08.911 UTC OSPF Router with ID (11.11.11.11) (Process ID 1) Router Link States (Area 1) LS age: 605 Options: (No TOS-capability, DC) LS Type: Router Links Link State ID: 11.11.11.11 Advertising Router: 11.11.11.11 LS Seq Number: 80000004 Checksum: 0x2a5a Length: 84 Number of Links: 5 Link connected to: a Stub Network (Link ID) Network/subnet number: 10.1.1.1 (Link Data) Network Mask: 255.255.255.255 Number of TOS metrics: 0 TOS 0 Metrics: 1 Link connected to: another Router (point-to-point) (Link ID) Neighboring Router ID: 100.1.1.1 (Link Data) Router Interface address: 172.16.1.2 Number of TOS metrics: 0 TOS 0 Metrics: 1 Link connected to: a Stub Network (Link ID) Network/subnet number: 172.16.1.0 (Link Data) Network Mask: 255.255.255.0 Number of TOS metrics: 0 TOS 0 Metrics: 1 Link connected to: another Router (point-to-point) (Link ID) Neighboring Router ID: 12.12.12.12 (Link Data) Router Interface address: 10.1.9.1 Number of TOS metrics: 0 TOS 0 Metrics: 100 Link connected to: a Stub Network (Link ID) Network/subnet number: 10.1.9.0 (Link Data) Network Mask: 255.255.255.0 Number of TOS metrics: 0 TOS 0 Metrics: 100 Routing Bit Set on this LSA LS age: 599 Options: (No TOS-capability, DC) LS Type: Router Links Link State ID: 12.12.12.12 Advertising Router: 12.12.12.12 LS Seq Number: 80000004 Checksum: 0xdf99 Length: 84 Number of Links: 5 Link connected to: a Stub Network (Link ID) Network/subnet number: 10.1.2.1 (Link Data) Network Mask: 255.255.255.255 Number of TOS metrics: 0 TOS 0 Metrics: 1 Link connected to: another Router (point-to-point) (Link ID) Neighboring Router ID: 100.2.2.2 (Link Data) Router Interface address: 172.16.2.2 Number of TOS metrics: 0 TOS 0 Metrics: 1 Link connected to: a Stub Network (Link ID) Network/subnet number: 172.16.2.0 (Link Data) Network Mask: 255.255.255.0 Number of TOS metrics: 0 TOS 0 Metrics: 1 Link connected to: another Router (point-to-point) (Link ID) Neighboring Router ID: 11.11.11.11 (Link Data) Router Interface address: 10.1.9.2 Number of TOS metrics: 0 TOS 0 Metrics: 100 Link connected to: a Stub Network (Link ID) Network/subnet number: 10.1.9.0 (Link Data) Network Mask: 255.255.255.0 Number of TOS metrics: 0 TOS 0 Metrics: 100 Routing Bit Set on this LSA LS age: 241 Options: (No TOS-capability, DC) LS Type: Router Links Link State ID: 100.1.1.1 Advertising Router: 100.1.1.1 LS Seq Number: 80000003 Checksum: 0xfe2c Length: 60 Area Border Router AS Boundary Router Number of Links: 3 Link connected to: another Router (point-to-point) (Link ID) Neighboring Router ID: 100.2.2.2 (Link Data) Router Interface address: 0.0.0.2 Number of TOS metrics: 0 TOS 0 Metrics: 1 Link connected to: another Router (point-to-point) (Link ID) Neighboring Router ID: 11.11.11.11 (Link Data) Router Interface address: 172.16.1.1 Number of TOS metrics: 0 TOS 0 Metrics: 1 Link connected to: a Stub Network (Link ID) Network/subnet number: 172.16.1.0 (Link Data) Network Mask: 255.255.255.0 Number of TOS metrics: 0 TOS 0 Metrics: 1 Routing Bit Set on this LSA LS age: 242 Options: (No TOS-capability, DC) LS Type: Router Links Link State ID: 100.2.2.2 Advertising Router: 100.2.2.2 LS Seq Number: 80000003 Checksum: 0x2cf6 Length: 60 Area Border Router AS Boundary Router Number of Links: 3 Link connected to: another Router (point-to-point) (Link ID) Neighboring Router ID: 100.1.1.1 (Link Data) Router Interface address: 0.0.0.1 Number of TOS metrics: 0 TOS 0 Metrics: 1 Link connected to: another Router (point-to-point) (Link ID) Neighboring Router ID: 12.12.12.12 (Link Data) Router Interface address: 172.16.2.1 Number of TOS metrics: 0 TOS 0 Metrics: 1 Link connected to: a Stub Network (Link ID) Network/subnet number: 172.16.2.0 (Link Data) Network Mask: 255.255.255.0 Number of TOS metrics: 0 TOS 0 Metrics: 1 RP/0/RP0/CPU0:CE-A1#show ospf database summary Mon Oct 12 10:03:09.602 UTC OSPF Router with ID (11.11.11.11) (Process ID 1) RP/0/RP0/CPU0:CE-A1#show route ospf Mon Oct 12 10:03:10.651 UTC O E2 10.0.101.1/32 [110/1] via 172.16.1.1, 00:04:01, GigabitEthernet0/0/0/0 O E2 10.0.102.1/32 [110/1] via 172.16.1.1, 00:08:54, GigabitEthernet0/0/0/0 O 10.1.2.1/32 [110/4] via 172.16.1.1, 00:04:01, GigabitEthernet0/0/0/0 O 172.16.2.0/24 [110/3] via 172.16.1.1, 00:04:01, GigabitEthernet0/0/0/0 RP/0/RP0/CPU0:CE-A1#show route 10.1.1.1/32 Mon Oct 12 10:03:10.819 UTC Routing entry for 10.1.1.1/32 Known via "local", distance 0, metric 0 (connected) Installed Oct 12 09:52:31.142 for 00:10:39 Routing Descriptor Blocks directly connected, via Loopback1 Route metric is 0 Redist Advertisers: 3 (protoid=3, clientid=38) RP/0/RP0/CPU0:CE-A1#show route 10.1.2.1/32 Mon Oct 12 10:03:11.048 UTC Routing entry for 10.1.2.1/32 Known via "ospf 1", distance 110, metric 4, type intra area Installed Oct 12 09:59:08.780 for 00:04:02 Routing Descriptor Blocks 172.16.1.1, from 12.12.12.12, via GigabitEthernet0/0/0/0 Route metric is 4 No advertising protos. RP/0/RP0/CPU0:CE-A1#show running-config router ospf 1 Mon Oct 12 10:03:11.254 UTC router ospf 1 log adjacency changes router-id 11.11.11.11 area 1 interface Loopback1 passive enable ! interface GigabitEthernet0/0/0/0 network point-to-point ! interface GigabitEthernet0/0/0/1 cost 100 network point-to-point ! ! !