RP/0/RP0/CPU0:CE-A1a#show version Mon Oct 12 05:14:33.624 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-A1a uptime is 27 minutes XRd Control Plane Container RP/0/RP0/CPU0:CE-A1a#show interface description Mon Oct 12 05:14:33.767 UTC Interface Status Protocol Description -------------------------------------------------------------------------------- Lo0 up up 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 to CE-A1b site1 LAN (10.1.1.0/24) Gi0/0/0/2 admin-down admin-down Gi0/0/0/3 admin-down admin-down RP/0/RP0/CPU0:CE-A1a#show route Mon Oct 12 05:14:33.974 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 C 10.1.1.0/24 is directly connected, 00:24:32, GigabitEthernet0/0/0/1 L 10.1.1.1/32 is directly connected, 00:24:32, GigabitEthernet0/0/0/1 O E2 10.1.2.1/32 [110/2] via 172.16.1.1, 00:04:45, GigabitEthernet0/0/0/0 L 11.11.11.11/32 is directly connected, 00:24:37, Loopback0 C 172.16.1.0/24 is directly connected, 00:24:32, GigabitEthernet0/0/0/0 L 172.16.1.2/32 is directly connected, 00:24:32, GigabitEthernet0/0/0/0 O 172.16.2.0/24 [110/2] via 10.1.1.2, 00:24:22, GigabitEthernet0/0/0/1 O E2 172.16.3.0/24 [110/1] via 172.16.1.1, 00:04:45, GigabitEthernet0/0/0/0 RP/0/RP0/CPU0:CE-A1a#show route static Mon Oct 12 05:14:34.178 UTC % No matching routes found RP/0/RP0/CPU0:CE-A1a#show cef Mon Oct 12 05:14:34.412 UTC Prefix Next Hop Interface ------------------- ------------------- ------------------ 0.0.0.0/0 drop default handler 0.0.0.0/32 broadcast 10.1.1.0/24 attached GigabitEthernet0/0/0/1 10.1.1.0/32 broadcast GigabitEthernet0/0/0/1 10.1.1.1/32 receive GigabitEthernet0/0/0/1 10.1.1.2/32 10.1.1.2/32 GigabitEthernet0/0/0/1 10.1.1.255/32 broadcast GigabitEthernet0/0/0/1 10.1.2.1/32 172.16.1.1/32 GigabitEthernet0/0/0/0 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 10.1.1.2/32 GigabitEthernet0/0/0/1 172.16.3.0/24 172.16.1.1/32 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-A1a#show ipv4 interface brief Mon Oct 12 05:14:34.726 UTC Interface IP-Address Status Protocol Vrf-Name Loopback0 11.11.11.11 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 10.1.1.1 Up Up default GigabitEthernet0/0/0/2 unassigned Shutdown Down default GigabitEthernet0/0/0/3 unassigned Shutdown Down default RP/0/RP0/CPU0:CE-A1a#show arp Mon Oct 12 05:14:34.913 UTC ------------------------------------------------------------------------------- 0/RP0/CPU0 ------------------------------------------------------------------------------- Address Age Hardware Addr State Type Interface 10.1.1.1 - 5254.00ca.18cd Interface ARPA GigabitEthernet0/0/0/1 10.1.1.2 00:24:23 5254.00bf.4b19 Dynamic ARPA GigabitEthernet0/0/0/1 172.16.1.1 00:24:14 5254.00b1.5112 Dynamic ARPA GigabitEthernet0/0/0/0 172.16.1.2 - 5254.0056.fd0f Interface ARPA GigabitEthernet0/0/0/0 RP/0/RP0/CPU0:CE-A1a#show ospf Mon Oct 12 05:14:35.068 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 7 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 4. Checksum Sum 0x012582 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 2 SPF algorithm executed 8 times Number of LSA 4. Checksum Sum 0x00fb31 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-A1a#show ospf neighbor Mon Oct 12 05:14:35.930 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 00:24:16 12.12.12.12 1 FULL/ - 00:00:38 10.1.1.2 GigabitEthernet0/0/0/1 Neighbor is up for 00:24:24 Total neighbor count: 2 RP/0/RP0/CPU0:CE-A1a#show ospf interface brief Mon Oct 12 05:14:36.723 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 Gi0/0/0/0 1 1 172.16.1.2/24 1 P2P 1/1 Gi0/0/0/1 1 1 10.1.1.1/24 1 P2P 1/1 RP/0/RP0/CPU0:CE-A1a#show ospf database Mon Oct 12 05:14:37.432 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 1457 0x80000003 0x00c8b1 4 12.12.12.12 12.12.12.12 1452 0x80000003 0x005d13 4 100.1.1.1 100.1.1.1 1458 0x80000002 0x008027 2 100.2.2.2 100.2.2.2 1452 0x80000003 0x008c0e 2 Type-5 AS External Link States Link ID ADV Router Age Seq# Checksum Tag 10.1.2.1 100.1.1.1 290 0x80000001 0x00ec17 3489725929 10.1.2.1 100.2.2.2 291 0x80000001 0x00d729 3489725929 172.16.3.0 100.1.1.1 290 0x80000001 0x00ea68 3489725929 172.16.3.0 100.2.2.2 291 0x80000001 0x00d57a 3489725929 RP/0/RP0/CPU0:CE-A1a#show ospf database router Mon Oct 12 05:14:38.221 UTC OSPF Router with ID (11.11.11.11) (Process ID 1) Router Link States (Area 1) LS age: 1458 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: 80000003 Checksum: 0xc8b1 Length: 72 Number of Links: 4 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: 10.1.1.1 Number of TOS metrics: 0 TOS 0 Metrics: 1 Link connected to: a Stub Network (Link ID) Network/subnet number: 10.1.1.0 (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: 1453 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: 80000003 Checksum: 0x5d13 Length: 72 Number of Links: 4 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: 10.1.1.2 Number of TOS metrics: 0 TOS 0 Metrics: 1 Link connected to: a Stub Network (Link ID) Network/subnet number: 10.1.1.0 (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: 1459 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: 80000002 Checksum: 0x8027 Length: 48 Area Border Router AS Boundary Router Number of Links: 2 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: 1453 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: 0x8c0e Length: 48 Area Border Router AS Boundary Router Number of Links: 2 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-A1a#show ospf database summary Mon Oct 12 05:14:38.930 UTC OSPF Router with ID (11.11.11.11) (Process ID 1) RP/0/RP0/CPU0:CE-A1a#show ospf database external Mon Oct 12 05:14:39.637 UTC OSPF Router with ID (11.11.11.11) (Process ID 1) Type-5 AS External Link States Routing Bit Set on this LSA LS age: 292 Options: (No TOS-capability, DC, DN) LS Type: AS External Link Link State ID: 10.1.2.1 (External Network Number) Advertising Router: 100.1.1.1 LS Seq Number: 80000001 Checksum: 0xec17 Length: 36 Network Mask: /32 Metric Type: 2 (Larger than any link state path) TOS: 0 Metric: 2 Forward Address: 0.0.0.0 External Route Tag: 3489725929 LS age: 293 Options: (No TOS-capability, DC, DN) LS Type: AS External Link Link State ID: 10.1.2.1 (External Network Number) Advertising Router: 100.2.2.2 LS Seq Number: 80000001 Checksum: 0xd729 Length: 36 Network Mask: /32 Metric Type: 2 (Larger than any link state path) TOS: 0 Metric: 2 Forward Address: 0.0.0.0 External Route Tag: 3489725929 Routing Bit Set on this LSA LS age: 292 Options: (No TOS-capability, DC, DN) LS Type: AS External Link Link State ID: 172.16.3.0 (External Network Number) Advertising Router: 100.1.1.1 LS Seq Number: 80000001 Checksum: 0xea68 Length: 36 Network Mask: /24 Metric Type: 2 (Larger than any link state path) TOS: 0 Metric: 1 Forward Address: 0.0.0.0 External Route Tag: 3489725929 LS age: 293 Options: (No TOS-capability, DC, DN) LS Type: AS External Link Link State ID: 172.16.3.0 (External Network Number) Advertising Router: 100.2.2.2 LS Seq Number: 80000001 Checksum: 0xd57a Length: 36 Network Mask: /24 Metric Type: 2 (Larger than any link state path) TOS: 0 Metric: 1 Forward Address: 0.0.0.0 External Route Tag: 3489725929 RP/0/RP0/CPU0:CE-A1a#show route ospf Mon Oct 12 05:14:40.372 UTC O E2 10.1.2.1/32 [110/2] via 172.16.1.1, 00:04:51, GigabitEthernet0/0/0/0 O 172.16.2.0/24 [110/2] via 10.1.1.2, 00:24:28, GigabitEthernet0/0/0/1 O E2 172.16.3.0/24 [110/1] via 172.16.1.1, 00:04:51, GigabitEthernet0/0/0/0 RP/0/RP0/CPU0:CE-A1a#show route 10.1.2.1/32 Mon Oct 12 05:14:40.551 UTC Routing entry for 10.1.2.1/32 Known via "ospf 1", distance 110, metric 2 Tag 3489725929, type extern 2 Installed Oct 12 05:09:48.766 for 00:04:51 Routing Descriptor Blocks 172.16.1.1, from 100.1.1.1, via GigabitEthernet0/0/0/0 Route metric is 2 No advertising protos. RP/0/RP0/CPU0:CE-A1a#show running-config router ospf 1 Mon Oct 12 05:14:40.801 UTC router ospf 1 log adjacency changes router-id 11.11.11.11 area 1 interface GigabitEthernet0/0/0/0 network point-to-point ! interface GigabitEthernet0/0/0/1 network point-to-point ! ! !