RP/0/RP0/CPU0:R1#show version Tue Sep 15 12:41:20.033 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 R1 uptime is 29 minutes XRd Control Plane Container RP/0/RP0/CPU0:R1#show interface description Tue Sep 15 12:41:20.246 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 R2 (10.1.2.0/24 p2p) 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:R1#show route Tue Sep 15 12:41:20.466 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 L 1.1.1.1/32 is directly connected, 00:26:33, Loopback0 i L1 2.2.2.2/32 [115/10] via 10.1.2.2, 00:00:35, GigabitEthernet0/0/0/0 [115/10] via 10.123.0.2, 00:00:35, GigabitEthernet0/0/0/1 C 10.1.2.0/24 is directly connected, 00:26:27, GigabitEthernet0/0/0/0 L 10.1.2.1/32 is directly connected, 00:26:27, GigabitEthernet0/0/0/0 C 10.123.0.0/24 is directly connected, 00:26:27, GigabitEthernet0/0/0/1 L 10.123.0.1/32 is directly connected, 00:26:27, GigabitEthernet0/0/0/1 RP/0/RP0/CPU0:R1#show route isis Tue Sep 15 12:41:20.646 UTC i L1 2.2.2.2/32 [115/10] via 10.1.2.2, 00:00:35, GigabitEthernet0/0/0/0 [115/10] via 10.123.0.2, 00:00:35, GigabitEthernet0/0/0/1 RP/0/RP0/CPU0:R1#show isis Tue Sep 15 12:41:20.825 UTC IS-IS Router: 1 System Id: 0010.0100.1001 Hostname: R1 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: 4361 Respawn count: 1 Started: Tue 2026 Sep 15 12:14:35.804 UTC Null0 ready: Tue 2026 Sep 15 12:14:37.216 UTC Protocol shutdown: No System memory state: Normal Last change: never Memory state: Normal Last change: never Last/Initial memory usage/limit: 1596873/2147483648 0% Memory state monitoring interval: 60 s Memory usage/limit: 15459870/2147483648 0% Memory usage specifics (count/bytes): Nodes: 10/4080 LSPs: 10/4181 Links: 14/17136 Prefixes: 21/19320 Nets: 5/3440 Paths: 16/1536 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 12:14:38.317 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) GigabitEthernet0/0/0/0 is running actively (active in configuration) GigabitEthernet0/0/0/1 is running actively (active in configuration) RP/0/RP0/CPU0:R1#show isis interface Tue Sep 15 12:41:21.010 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: 1.1.1.1/32 PME Link Delays and Loss: - GigabitEthernet0/0/0/0 Enabled Adjacency Formation: Enabled Prefix Advertisement: Enabled Bandwidth: 1000000 RSI SRLG: Not Registered Circuit Type: level-1-2 Media Type: P2P Circuit Number: 0 Extended Circuit Number: 3 Last IIH Received: 12:41:17 (3.48 sec ago), 1497 octets Last IIH Sent: 12:41:16 (4.73 sec ago), 1497 octets Sending next P2P IIH in: 5 s IPv4 BFD: Disabled IPv6 BFD: Disabled Level-1 Adjacency Count: 1 Adjacency Flaps: 2 LSP Pacing Interval: 33 ms PSNP Entry Queue Size: 0 Hello Interval: 10 s Hello Multiplier: 3 Level-2 Adjacency Count: 1 Adjacency Flaps: 2 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: 5254.00fe.f0db Layer-2 Multicast: All 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: 10.1.2.1 Global Prefix: 10.1.2.0/24 LSP Transmission is: idle LSP Transmit Timer in: 0 ms LSP Burst Size: 3 LSPs in the next 0 ms LSP Rexmit Queue Size: 0 Adjacency Up: 12:36:08.676 Received CSNP complete: 12:36:08.985 LSP Pacing Start: 12:36:08.985 LSP fast flooding: Disabled 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: 12:41:19 (1.61 sec ago), 1497 octets Last IIH Sent: 12:41:19 (1.61 sec ago), 1497 octets IPv4 BFD: Disabled IPv6 BFD: Disabled Level-1 Adjacency Count: 1 Adjacency Flaps: 2 LAN ID: R1.01 Priority (Local/DIS): 64/64 Next LAN IIH in: 959 ms LSP Pacing Interval: 33 ms PSNP Entry Queue Size: 0 Hello Interval: 10 s Hello Multiplier: 3 Level-2 Adjacency Count: 1 Adjacency Flaps: 2 LAN ID: R1.01 Priority (Local/DIS): 64/64 Next LAN IIH in: 1 s 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: 5254.00d6.fa13 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: 10.123.0.1 Global Prefix: 10.123.0.0/24 LSP Transmission is: idle LSP Transmit Timer in: 0 ms LSP Burst Size: 3 LSPs in the next 0 ms LSP fast flooding: Unsupported PME Link Delays and Loss: - RP/0/RP0/CPU0:R1#show isis neighbors Tue Sep 15 12:41:21.245 UTC IS-IS 1 neighbors: System Id Interface SNPA State Holdtime Type IETF-NSF R2 Gi0/0/0/0 *PtoP* Up 26 L1L2 Capable R2 Gi0/0/0/1 5254.009e.59f8 Up 27 L1L2 Capable Total neighbor count: 2 RP/0/RP0/CPU0:R1#show isis neighbors detail Tue Sep 15 12:41:21.415 UTC IS-IS 1 neighbors: System Id Interface SNPA State Holdtime Type IETF-NSF R2 Gi0/0/0/0 *PtoP* Up 26 L1L2 Capable Area Address(es): 49.0001 IPv4 Address(es): 10.1.2.2* Topologies: 'IPv4 Unicast' Uptime: 00:05:12 R2 Gi0/0/0/1 5254.009e.59f8 Up 27 L1L2 Capable Area Address(es): 49.0001 IPv4 Address(es): 10.123.0.2* Topologies: 'IPv4 Unicast' Uptime: 00:01:51 Total neighbor count: 2 RP/0/RP0/CPU0:R1#show isis database Tue Sep 15 12:41:21.574 UTC IS-IS 1 (Level-1) Link State Database LSPID LSP Seq Num LSP Checksum LSP Holdtime/Rcvd ATT/P/OL R1.00-00 * 0x0000000d 0x2f2f 1162 /* 0/0/0 R1.01-00 0x00000001 0x1b2b 1162 /* 0/0/0 R2.00-00 0x00000012 0xaca3 1163 /1200 0/0/0 R3.00-00 0x00000006 0x05a2 442 /1200 0/0/0 R3.01-00 0x00000004 0xdb6f 0 (1162)/* 0/0/0 Total Level-1 LSP count: 5 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 * 0x00000011 0x5121 1162 /* 0/0/0 R1.01-00 0x00000001 0x1b2b 1162 /* 0/0/0 R2.00-00 0x00000017 0x2047 1163 /1200 0/0/0 R3.00-00 0x0000000a 0x4dbc 1088 /1200 0/0/0 R3.01-00 0x00000004 0xdb6f 0 (1162)/* 0/0/0 Total Level-2 LSP count: 5 Local Level-2 LSP count: 1 RP/0/RP0/CPU0:R1#show isis database detail Tue Sep 15 12:41:21.699 UTC IS-IS 1 (Level-1) Link State Database LSPID LSP Seq Num LSP Checksum LSP Holdtime/Rcvd ATT/P/OL R1.00-00 * 0x0000000d 0x2f2f 1162 /* 0/0/0 Area Address: 49.0001 LSP MTU: 1492 NLPID: 0xcc IP Address: 1.1.1.1 Hostname: R1 Metric: 10 IS-Extended R1.01 Metric: 10 IS-Extended R2.00 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 R1.01-00 0x00000001 0x1b2b 1162 /* 0/0/0 Metric: 0 IS-Extended R2.00 Metric: 0 IS-Extended R1.00 R2.00-00 0x00000012 0xaca3 1163 /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 IS-Extended R1.01 Metric: 0 IP-Extended 2.2.2.2/32 Metric: 10 IP-Extended 10.1.2.0/24 Metric: 10 IP-Extended 10.123.0.0/24 R3.00-00 0x00000006 0x05a2 441 /1200 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 0x00000004 0xdb6f 0 (1162)/* 0/0/0 Purge Originator: 0010.0100.1001 R1 Hostname: R1 Total Level-1 LSP count: 5 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 * 0x00000011 0x5121 1162 /* 0/0/0 Area Address: 49.0001 LSP MTU: 1492 NLPID: 0xcc IP Address: 1.1.1.1 Hostname: R1 Metric: 10 IS-Extended R1.01 Metric: 10 IS-Extended R2.00 Metric: 0 IP-Extended 1.1.1.1/32 Metric: 10 IP-Extended 2.2.2.2/32 Metric: 10 IP-Extended 10.1.2.0/24 Metric: 10 IP-Extended 10.123.0.0/24 R1.01-00 0x00000001 0x1b2b 1162 /* 0/0/0 Metric: 0 IS-Extended R2.00 Metric: 0 IS-Extended R1.00 R2.00-00 0x00000017 0x2047 1163 /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 IS-Extended R1.01 Metric: 10 IP-Extended 1.1.1.1/32 Metric: 0 IP-Extended 2.2.2.2/32 Metric: 10 IP-Extended 10.1.2.0/24 Metric: 10 IP-Extended 10.123.0.0/24 R3.00-00 0x0000000a 0x4dbc 1087 /1200 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: 10 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 0x00000004 0xdb6f 0 (1162)/* 0/0/0 Purge Originator: 0010.0100.1001 R1 Hostname: R1 Total Level-2 LSP count: 5 Local Level-2 LSP count: 1 RP/0/RP0/CPU0:R1#show isis statistics Tue Sep 15 12:41:21.950 UTC IS-IS 1 Packet and Event Statistics Dropped Dropped Total PDUs Sent Received On Input By Update Hello: 588 1713 0 - CSNP: 16 354 - 0 PSNP: 25 23 0 0 LSP: 71 74 0 0 LSP Retransmissions: 1 LSP Checksum Errors: 0 Initiated LSP Purges: 4 Initiated Own LSP Purges: 2 Last Own Purged LSP: R1.01-00 (L2) Last Occurrence: Tue 2026 Sep 15 12:15:09.611 UTC Initiated Other LSP Purges: 2 Last Other Purged LSP: R3.01-00 (L2) Last Occurrence: Tue 2026 Sep 15 12:40:44.226 UTC IS-IS Update Queue: 0/3500 Total Traffic: 451 High Water Mark: 6 HWM Set: Tue 2026 Sep 15 12:30:17.988 UTC Total Drops: 0 IS-IS Input Queue: 0/4200 Total Traffic: 2164 High Water Mark: 5 Total Drops: 0 Level-1 LSPs sourced (new/refresh): 19/0 Route Calculations IPv4 Unicast Total: 25 Full SPF Calculations: 22 Periodic: 0 Partial Route Calc: 3 Next Hop Calculations: 0 Level-2 LSPs sourced (new/refresh): 21/1 Route Calculations IPv4 Unicast Total: 29 Full SPF Calculations: 24 Periodic: 0 Partial Route Calc: 5 Next Hop Calculations: 0 RP/0/RP0/CPU0:R1#show running-config router isis Tue Sep 15 12:41:22.135 UTC router isis 1 net 49.0001.0010.0100.1001.00 log adjacency changes address-family ipv4 unicast metric-style wide ! interface Loopback0 passive address-family ipv4 unicast ! ! interface GigabitEthernet0/0/0/0 point-to-point address-family ipv4 unicast metric 10 ! ! interface GigabitEthernet0/0/0/1 address-family ipv4 unicast metric 10 ! ! ! RP/0/RP0/CPU0:R1#show configuration commit list Tue Sep 15 12:41:23.096 UTC The commit database is empty. RP/0/RP0/CPU0:R1#show isis adjacency-log Tue Sep 15 12:41:23.415 UTC IS-IS 1 Level 1 Adjacency Log Capacity: 100, Size: 16 When System Interface State Details --- Tue Sep 15 2026 --- 12:14:54.996 R2 Gi0/0/0/1 d -> i 12:14:55.174 R2 Gi0/0/0/0 d -> i 12:14:55.785 R2 Gi0/0/0/0 i -> u New adjacency IPv4 Unicast Up 12:14:57.964 R2 Gi0/0/0/1 i -> u New adjacency IPv4 Unicast Up 12:15:06.606 R3 Gi0/0/0/1 d -> i 12:15:09.600 R3 Gi0/0/0/1 i -> u New adjacency IPv4 Unicast Up 12:27:27.263 R2 Gi0/0/0/0 u -> d Holdtime expired IPv4 Unicast Down 12:30:16.072 R2 Gi0/0/0/0 d -> i 12:30:16.680 R2 Gi0/0/0/0 i -> u New adjacency IPv4 Unicast Up 12:33:41.972 R2 Gi0/0/0/0 u -> d Holdtime expired IPv4 Unicast Down 12:36:08.070 R2 Gi0/0/0/0 d -> i 12:36:08.677 R2 Gi0/0/0/0 i -> u New adjacency IPv4 Unicast Up 12:36:36.185 R2 Gi0/0/0/1 u -> d Holdtime expired IPv4 Unicast Down 12:39:26.662 R2 Gi0/0/0/1 d -> i 12:39:29.593 R2 Gi0/0/0/1 i -> u New adjacency IPv4 Unicast Up 12:40:43.898 R3 Gi0/0/0/1 u -> d Holdtime expired IPv4 Unicast Down IS-IS 1 Level 2 Adjacency Log Capacity: 100, Size: 16 When System Interface State Details --- Tue Sep 15 2026 --- 12:14:54.997 R2 Gi0/0/0/1 d -> i 12:14:55.175 R2 Gi0/0/0/0 d -> i 12:14:55.785 R2 Gi0/0/0/0 i -> u New adjacency IPv4 Unicast Up 12:14:57.996 R2 Gi0/0/0/1 i -> u New adjacency IPv4 Unicast Up 12:15:06.607 R3 Gi0/0/0/1 d -> i 12:15:09.600 R3 Gi0/0/0/1 i -> u New adjacency IPv4 Unicast Up 12:27:27.263 R2 Gi0/0/0/0 u -> d Interface state down IPv4 Unicast Down 12:30:16.072 R2 Gi0/0/0/0 d -> i 12:30:16.681 R2 Gi0/0/0/0 i -> u New adjacency IPv4 Unicast Up 12:33:41.972 R2 Gi0/0/0/0 u -> d Interface state down IPv4 Unicast Down 12:36:08.070 R2 Gi0/0/0/0 d -> i 12:36:08.677 R2 Gi0/0/0/0 i -> u New adjacency IPv4 Unicast Up 12:36:36.260 R2 Gi0/0/0/1 u -> d Holdtime expired IPv4 Unicast Down 12:39:26.662 R2 Gi0/0/0/1 d -> i 12:39:29.593 R2 Gi0/0/0/1 i -> u New adjacency IPv4 Unicast Up 12:40:44.215 R3 Gi0/0/0/1 u -> d Holdtime expired IPv4 Unicast Down