RP/0/RP0/CPU0:R3#show version Tue Sep 15 12:38:14.997 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 R3 uptime is 25 minutes XRd Control Plane Container RP/0/RP0/CPU0:R3#show interface description Tue Sep 15 12:38:15.141 UTC Interface Status Protocol Description -------------------------------------------------------------------------------- Lo0 up up Nu0 up up Mg0/RP0/CPU0/0 up up management Gi0/0/0/0 admin-down admin-down Gi0/0/0/1 up up to LAN-SW (10.123.0.0/24 broadcast) Gi0/0/0/2 admin-down admin-down RP/0/RP0/CPU0:R3#show route Tue Sep 15 12:38:15.507 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 i L1 1.1.1.1/32 [115/10] via 10.123.0.1, 00:22:59, GigabitEthernet0/0/0/1 i L1 2.2.2.2/32 [115/20] via 10.123.0.1, 00:02:05, GigabitEthernet0/0/0/1 L 3.3.3.3/32 is directly connected, 00:23:15, Loopback0 i L1 10.1.2.0/24 [115/20] via 10.123.0.1, 00:04:36, GigabitEthernet0/0/0/1 C 10.123.0.0/24 is directly connected, 00:23:09, GigabitEthernet0/0/0/1 L 10.123.0.3/32 is directly connected, 00:23:09, GigabitEthernet0/0/0/1 RP/0/RP0/CPU0:R3#show route isis Tue Sep 15 12:38:15.707 UTC i L1 1.1.1.1/32 [115/10] via 10.123.0.1, 00:22:59, GigabitEthernet0/0/0/1 i L1 2.2.2.2/32 [115/20] via 10.123.0.1, 00:02:05, GigabitEthernet0/0/0/1 i L1 10.1.2.0/24 [115/20] via 10.123.0.1, 00:04:36, GigabitEthernet0/0/0/1 RP/0/RP0/CPU0:R3#show isis Tue Sep 15 12:38:15.895 UTC IS-IS Router: 1 System Id: 0030.0300.3003 Hostname: R3 IS Levels: level-1-2 Manual area address(es): 49.0001 Routing for area address(es): 49.0001 Multi-Instance Id: 0 Running on: RP/0/RP0/CPU0 Job Id: 1003 PID: 4401 Respawn count: 1 Started: Tue 2026 Sep 15 12:14:48.516 UTC Null0 ready: Tue 2026 Sep 15 12:14:50.009 UTC Protocol shutdown: No System memory state: Normal Last change: never Memory state: Normal Last change: never Last/Initial memory usage/limit: 1596892/2147483648 0% Memory state monitoring interval: 60 s Memory usage/limit: 15407732/2147483648 0% Memory usage specifics (count/bytes): Nodes: 8/3264 LSPs: 8/3347 Links: 12/14688 Prefixes: 22/20240 Nets: 5/3440 Paths: 10/960 LSP MTU: 1492 LSP Full: level-1: No, level-2: No LSP fast flooding: Disabled Max LSP Tx: 1000 PSNP Delay: 500 ms PSNP interval: 50 ms Non-stop forwarding: Disabled Most recent startup mode: Cold Restart MFI LSD registered: No MFI LSD last registered: never TE connection status: Down TE connection up: never TE connection flaps: 0 XTC connection status: Down XTC connection up: never XTC connection flaps: 0 BFD connection status: Up BFD connection up: Tue 2026 Sep 15 12:14:51.007 UTC BFD connection flaps: 0 BFD HA role change: never BFD client HA role: none BFD server HA role: none Overload Bit: not configured Maximum Metric: not configured Topologies supported by IS-IS: IPv4 Unicast Rib connected Level-1 Metric style (generate/accept): Wide/Wide Metric: 10 Level-2 Metric style (generate/accept): Wide/Wide Metric: 10 No protocols redistributed Distance: 115 Advertise Passive Interface Prefixes Only: No Interfaces supported by IS-IS 1: Loopback0 is running passively (passive in configuration) GigabitEthernet0/0/0/1 is running actively (active in configuration) RP/0/RP0/CPU0:R3#show isis interface Tue Sep 15 12:38:16.107 UTC IS-IS 1 Interfaces Loopback0 Enabled Adjacency Formation: Disabled (Passive in IS-IS cfg) Prefix Advertisement: Enabled Bandwidth: 0 Circuit Type: level-1-2 Media Type: Loop Circuit Number: 0 IPv4 Unicast Topology: Enabled Adjacency Formation: Disabled (Intf passive in IS-IS cfg) Prefix Advertisement: Running Policy (L1/L2): -/- Metric (L1/L2): 0/0 Metric fallback: Bandwidth (L1/L2): Inactive/Inactive Anomaly (L1/L2): Inactive/Inactive Weight (L1/L2): 0/0 MPLS Max Label Stack: 0/0/0/0 (PRI/BKP/SRTE/SRAT) MPLS LDP Sync (L1/L2): Disabled/Disabled IPv4 Address Family: Enabled Protocol State: Up Forwarding Address: None (Intf passive in IS-IS cfg) Global Prefix: 3.3.3.3/32 PME Link Delays and Loss: - GigabitEthernet0/0/0/1 Enabled Adjacency Formation: Enabled Prefix Advertisement: Enabled Bandwidth: 1000000 RSI SRLG: Not Registered Circuit Type: level-1-2 Media Type: LAN Circuit Number: 1 Last IIH Received: 12:38:14 (1.89 sec ago), 1497 octets Last PDU Rejected: 12:15:07 (00:23:08 ago), 126 octets, L2 LSP, Wrong Adjacency State Last IIH Sent: 12:38:15 (0.28 sec ago), 1497 octets IPv4 BFD: Disabled IPv6 BFD: Disabled Level-1 Adjacency Count: 1 Adjacency Flaps: 1 LAN ID: R3.01 Priority (Local/DIS): 100/100 Next LAN IIH in: 2 s LSP Pacing Interval: 33 ms PSNP Entry Queue Size: 0 Hello Interval: 10 s Hello Multiplier: 3 Level-2 Adjacency Count: 1 Adjacency Flaps: 1 LAN ID: R3.01 Priority (Local/DIS): 100/100 Next LAN IIH in: 299 ms LSP Pacing Interval: 33 ms PSNP Entry Queue Size: 0 Hello Interval: 10 s Hello Multiplier: 3 CLNS I/O Protocol State: Up MTU: 1497 SNPA: 5254.00d9.dd85 Layer-2 Multicast: All Level-1 ISs: Listening All Level-2 ISs: Listening IPv4 Unicast Topology: Enabled Adjacency Formation: Running Prefix Advertisement: Running Policy (L1/L2): -/- Metric (L1/L2): 10/10 Metric fallback: Bandwidth (L1/L2): Inactive/Inactive Anomaly (L1/L2): Inactive/Inactive Weight (L1/L2): 0/0 MPLS Max Label Stack: 1/3/7/7 (PRI/BKP/SRTE/SRAT) MPLS LDP Sync (L1/L2): Disabled/Disabled FRR (L1/L2): L1 Not Enabled L2 Not Enabled FRR Type: None None IPv4 Address Family: Enabled Protocol State: Up Forwarding Address: 10.123.0.3 Global Prefix: 10.123.0.0/24 LSP Transmission is: idle LSP Transmit Timer in: 0 ms LSP Burst Size: 8 LSPs in the next 0 ms LSP fast flooding: Unsupported PME Link Delays and Loss: - RP/0/RP0/CPU0:R3#show isis neighbors Tue Sep 15 12:38:16.305 UTC IS-IS 1 neighbors: System Id Interface SNPA State Holdtime Type IETF-NSF R1 Gi0/0/0/1 5254.00d6.fa13 Up 25 L1L2 Capable Total neighbor count: 1 RP/0/RP0/CPU0:R3#show isis neighbors detail Tue Sep 15 12:38:16.450 UTC IS-IS 1 neighbors: System Id Interface SNPA State Holdtime Type IETF-NSF R1 Gi0/0/0/1 5254.00d6.fa13 Up 25 L1L2 Capable Area Address(es): 49.0001 IPv4 Address(es): 10.123.0.1* Topologies: 'IPv4 Unicast' Uptime: 00:23:08 Total neighbor count: 1 RP/0/RP0/CPU0:R3#show isis database Tue Sep 15 12:38:16.609 UTC IS-IS 1 (Level-1) Link State Database LSPID LSP Seq Num LSP Checksum LSP Holdtime/Rcvd ATT/P/OL R1.00-00 0x0000000c 0x9585 1072 /1200 0/0/0 R2.00-00 0x0000000e 0x7711 1073 /1200 0/0/0 R3.00-00 * 0x00000006 0x05a2 627 /* 0/0/0 R3.01-00 0x00000003 0x1dc0 1099 /* 0/0/0 Total Level-1 LSP count: 4 Local Level-1 LSP count: 1 IS-IS 1 (Level-2) Link State Database LSPID LSP Seq Num LSP Checksum LSP Holdtime/Rcvd ATT/P/OL R1.00-00 0x0000000f 0x50f3 1072 /1200 0/0/0 R2.00-00 0x00000011 0x3431 1073 /1200 0/0/0 R3.00-00 * 0x00000009 0x817f 1073 /* 0/0/0 R3.01-00 0x00000003 0x1dc0 1099 /* 0/0/0 Total Level-2 LSP count: 4 Local Level-2 LSP count: 1 RP/0/RP0/CPU0:R3#show isis database detail Tue Sep 15 12:38:16.747 UTC IS-IS 1 (Level-1) Link State Database LSPID LSP Seq Num LSP Checksum LSP Holdtime/Rcvd ATT/P/OL R1.00-00 0x0000000c 0x9585 1071 /1200 0/0/0 Area Address: 49.0001 LSP MTU: 1492 NLPID: 0xcc IP Address: 1.1.1.1 Hostname: R1 Metric: 10 IS-Extended R2.00 Metric: 10 IS-Extended R3.01 Metric: 0 IP-Extended 1.1.1.1/32 Metric: 10 IP-Extended 10.1.2.0/24 Metric: 10 IP-Extended 10.123.0.0/24 R2.00-00 0x0000000e 0x7711 1073 /1200 0/0/0 Area Address: 49.0001 LSP MTU: 1492 NLPID: 0xcc IP Address: 2.2.2.2 Hostname: R2 Metric: 10 IS-Extended R1.00 Metric: 0 IP-Extended 2.2.2.2/32 Metric: 10 IP-Extended 10.1.2.0/24 R3.00-00 * 0x00000006 0x05a2 626 /* 0/0/0 Area Address: 49.0001 LSP MTU: 1492 NLPID: 0xcc IP Address: 3.3.3.3 Hostname: R3 Metric: 10 IS-Extended R3.01 Metric: 0 IP-Extended 3.3.3.3/32 Metric: 10 IP-Extended 10.123.0.0/24 R3.01-00 0x00000003 0x1dc0 1099 /* 0/0/0 Metric: 0 IS-Extended R1.00 Metric: 0 IS-Extended R3.00 Total Level-1 LSP count: 4 Local Level-1 LSP count: 1 IS-IS 1 (Level-2) Link State Database LSPID LSP Seq Num LSP Checksum LSP Holdtime/Rcvd ATT/P/OL R1.00-00 0x0000000f 0x50f3 1071 /1200 0/0/0 Area Address: 49.0001 LSP MTU: 1492 NLPID: 0xcc IP Address: 1.1.1.1 Hostname: R1 Metric: 10 IS-Extended R2.00 Metric: 10 IS-Extended R3.01 Metric: 0 IP-Extended 1.1.1.1/32 Metric: 10 IP-Extended 2.2.2.2/32 Metric: 10 IP-Extended 3.3.3.3/32 Metric: 10 IP-Extended 10.1.2.0/24 Metric: 10 IP-Extended 10.123.0.0/24 R2.00-00 0x00000011 0x3431 1073 /1200 0/0/0 Area Address: 49.0001 LSP MTU: 1492 NLPID: 0xcc IP Address: 2.2.2.2 Hostname: R2 Metric: 10 IS-Extended R1.00 Metric: 10 IP-Extended 1.1.1.1/32 Metric: 0 IP-Extended 2.2.2.2/32 Metric: 20 IP-Extended 3.3.3.3/32 Metric: 10 IP-Extended 10.1.2.0/24 Metric: 20 IP-Extended 10.123.0.0/24 R3.00-00 * 0x00000009 0x817f 1073 /* 0/0/0 Area Address: 49.0001 LSP MTU: 1492 NLPID: 0xcc IP Address: 3.3.3.3 Hostname: R3 Metric: 10 IS-Extended R3.01 Metric: 10 IP-Extended 1.1.1.1/32 Metric: 20 IP-Extended 2.2.2.2/32 Metric: 0 IP-Extended 3.3.3.3/32 Metric: 20 IP-Extended 10.1.2.0/24 Metric: 10 IP-Extended 10.123.0.0/24 R3.01-00 0x00000003 0x1dc0 1099 /* 0/0/0 Metric: 0 IS-Extended R1.00 Metric: 0 IS-Extended R3.00 Total Level-2 LSP count: 4 Local Level-2 LSP count: 1 RP/0/RP0/CPU0:R3#show isis statistics Tue Sep 15 12:38:16.951 UTC IS-IS 1 Packet and Event Statistics Dropped Dropped Total PDUs Sent Received On Input By Update Hello: 958 619 0 - CSNP: 316 0 - 0 PSNP: 0 0 0 0 LSP: 12 31 0 0 LSP Retransmissions: 0 LSP Checksum Errors: 0 IS-IS Update Queue: 0/3500 Total Traffic: 31 High Water Mark: 2 HWM Set: Tue 2026 Sep 15 12:15:07.655 UTC Total Drops: 0 IS-IS Input Queue: 0/4200 Total Traffic: 653 High Water Mark: 6 Total Drops: 0 Level-1 LSPs sourced (new/refresh): 9/2 Route Calculations IPv4 Unicast Total: 17 Full SPF Calculations: 15 Periodic: 0 Partial Route Calc: 2 Next Hop Calculations: 0 Level-2 LSPs sourced (new/refresh): 11/2 Route Calculations IPv4 Unicast Total: 19 Full SPF Calculations: 16 Periodic: 0 Partial Route Calc: 3 Next Hop Calculations: 0 RP/0/RP0/CPU0:R3#show running-config router isis Tue Sep 15 12:38:17.206 UTC router isis 1 net 49.0001.0030.0300.3003.00 log adjacency changes address-family ipv4 unicast metric-style wide ! interface Loopback0 passive address-family ipv4 unicast ! ! interface GigabitEthernet0/0/0/1 priority 100 address-family ipv4 unicast metric 10 ! ! ! RP/0/RP0/CPU0:R3#show configuration commit list Tue Sep 15 12:38:18.097 UTC The commit database is empty. RP/0/RP0/CPU0:R3#show isis adjacency-log Tue Sep 15 12:38:18.234 UTC IS-IS 1 Level 1 Adjacency Log Capacity: 100, Size: 5 When System Interface State Details --- Tue Sep 15 2026 --- 12:15:06.694 R1 Gi0/0/0/1 d -> i 12:15:06.695 R2 Gi0/0/0/1 d -> i 12:15:07.613 R1 Gi0/0/0/1 i -> u New adjacency IPv4 Unicast Up 12:15:07.613 R2 Gi0/0/0/1 i -> u New adjacency IPv4 Unicast Up 12:36:36.185 R2 Gi0/0/0/1 u -> d Holdtime expired IPv4 Unicast Down IS-IS 1 Level 2 Adjacency Log Capacity: 100, Size: 5 When System Interface State Details --- Tue Sep 15 2026 --- 12:15:06.694 R1 Gi0/0/0/1 d -> i 12:15:06.695 R2 Gi0/0/0/1 d -> i 12:15:07.613 R1 Gi0/0/0/1 i -> u New adjacency IPv4 Unicast Up 12:15:07.613 R2 Gi0/0/0/1 i -> u New adjacency IPv4 Unicast Up 12:36:36.260 R2 Gi0/0/0/1 u -> d Holdtime expired IPv4 Unicast Down