RP/0/RP0/CPU0:R2#show version Tue Sep 15 12:28:43.119 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 R2 uptime is 16 minutes XRd Control Plane Container RP/0/RP0/CPU0:R2#show interface description Tue Sep 15 12:28:43.317 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 to R1 (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:R2#show route Tue Sep 15 12:28:43.543 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, 00:02:52, GigabitEthernet0/0/0/1 L 2.2.2.2/32 is directly connected, 00:13:54, Loopback0 i L1 3.3.3.3/32 [115/10] via 10.123.0.3, 00:13:28, GigabitEthernet0/0/0/1 i L1 10.1.2.0/24 [115/20] via 10.123.0.1, 00:02:52, GigabitEthernet0/0/0/1 C 10.123.0.0/24 is directly connected, 00:13:48, GigabitEthernet0/0/0/1 L 10.123.0.2/32 is directly connected, 00:13:48, GigabitEthernet0/0/0/1 RP/0/RP0/CPU0:R2#show route isis Tue Sep 15 12:28:43.810 UTC i L1 1.1.1.1/32 [115/10] via 10.123.0.1, 00:02:52, GigabitEthernet0/0/0/1 i L1 3.3.3.3/32 [115/10] via 10.123.0.3, 00:13:29, GigabitEthernet0/0/0/1 i L1 10.1.2.0/24 [115/20] via 10.123.0.1, 00:02:52, GigabitEthernet0/0/0/1 RP/0/RP0/CPU0:R2#show isis Tue Sep 15 12:28:44.111 UTC IS-IS Router: 1 System Id: 0020.0200.2002 Hostname: R2 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: 4376 Respawn count: 1 Started: Tue 2026 Sep 15 12:14:36.876 UTC Null0 ready: Tue 2026 Sep 15 12:14:38.561 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: 15433354/2147483648 0% Memory usage specifics (count/bytes): Nodes: 8/3264 LSPs: 8/3347 Links: 12/14688 Prefixes: 22/20240 Nets: 5/3440 Paths: 14/1344 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 12:14:39.560 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 disabled (active in configuration) GigabitEthernet0/0/0/1 is running actively (active in configuration) RP/0/RP0/CPU0:R2#show isis interface Tue Sep 15 12:28:44.287 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: 2.2.2.2/32 PME Link Delays and Loss: - GigabitEthernet0/0/0/0 Enabled Adjacency Formation: Disabled (CLNS I/O unavailable/down on the intf) Prefix Advertisement: Disabled (No cfg topology can participate) Bandwidth: 1000000 Circuit Type: level-1-2 Media Type: P2P Circuit Number: 0 IPv4 BFD: Disabled IPv6 BFD: Disabled CLNS I/O Protocol State: Down (Intf not up in CLNS proto stack) MTU: 1497 SNPA: 5254.00fd.380e Layer-2 Multicast: All ISs: Listening IPv4 Unicast Topology: Enabled Adjacency Formation: Disabled (Not up in intf protocol stack) Prefix Advertisement: Disabled (Not up in intf protocol stack) 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: Down (IPv4 not up in intf protocol stack) Forwarding Address: 10.1.2.2 Global Prefix: 10.1.2.0/24 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: 12:28:44 (0.13 sec ago), 1497 octets Last IIH Sent: 12:28:40 (3.82 sec ago), 1497 octets IPv4 BFD: Disabled IPv6 BFD: Disabled Level-1 Adjacency Count: 2 Adjacency Flaps: 0 LAN ID: R3.01 Priority (Local/DIS): 64/100 Next LAN IIH in: 599 ms LSP Pacing Interval: 33 ms PSNP Entry Queue Size: 0 Hello Interval: 10 s Hello Multiplier: 3 Level-2 Adjacency Count: 2 Adjacency Flaps: 0 LAN ID: R3.01 Priority (Local/DIS): 64/100 Next LAN IIH in: 3 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: 5254.009e.59f8 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: 10.123.0.2 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:R2#show isis neighbors Tue Sep 15 12:28:44.428 UTC IS-IS 1 neighbors: System Id Interface SNPA State Holdtime Type IETF-NSF R1 Gi0/0/0/1 5254.00d6.fa13 Up 23 L1L2 Capable R3 Gi0/0/0/1 5254.00d9.dd85 Up 9 L1L2 Capable Total neighbor count: 2 RP/0/RP0/CPU0:R2#show isis neighbors detail Tue Sep 15 12:28:44.600 UTC IS-IS 1 neighbors: System Id Interface SNPA State Holdtime Type IETF-NSF R1 Gi0/0/0/1 5254.00d6.fa13 Up 23 L1L2 Capable Area Address(es): 49.0001 IPv4 Address(es): 10.123.0.1* Topologies: 'IPv4 Unicast' Uptime: 00:13:48 R3 Gi0/0/0/1 5254.00d9.dd85 Up 9 L1L2 Capable Area Address(es): 49.0001 IPv4 Address(es): 10.123.0.3* Topologies: 'IPv4 Unicast' Uptime: 00:13:35 Total neighbor count: 2 RP/0/RP0/CPU0:R2#show isis database Tue Sep 15 12:28:44.873 UTC IS-IS 1 (Level-1) Link State Database LSPID LSP Seq Num LSP Checksum LSP Holdtime/Rcvd ATT/P/OL R1.00-00 0x00000009 0x6a0d 1122 /1200 0/0/0 R2.00-00 * 0x00000009 0x4689 1026 /* 0/0/0 R3.00-00 0x00000006 0x05a2 1198 /1200 0/0/0 R3.01-00 0x00000001 0xdfb0 384 /1200 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 0x0000000c 0x0b95 1122 /1200 0/0/0 R2.00-00 * 0x0000000b 0x131d 1026 /* 0/0/0 R3.00-00 0x00000007 0x53b9 391 /1200 0/0/0 R3.01-00 0x00000001 0xdfb0 384 /1199 0/0/0 Total Level-2 LSP count: 4 Local Level-2 LSP count: 1 RP/0/RP0/CPU0:R2#show isis database detail Tue Sep 15 12:28:45.025 UTC IS-IS 1 (Level-1) Link State Database LSPID LSP Seq Num LSP Checksum LSP Holdtime/Rcvd ATT/P/OL R1.00-00 0x00000009 0x6a0d 1122 /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 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 * 0x00000009 0x4689 1026 /* 0/0/0 Area Address: 49.0001 LSP MTU: 1492 NLPID: 0xcc IP Address: 2.2.2.2 Hostname: R2 Metric: 10 IS-Extended R3.01 Metric: 0 IP-Extended 2.2.2.2/32 Metric: 10 IP-Extended 10.123.0.0/24 R3.00-00 0x00000006 0x05a2 1198 /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 0x00000001 0xdfb0 384 /1200 0/0/0 Metric: 0 IS-Extended R2.00 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 0x0000000c 0x0b95 1122 /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 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 * 0x0000000b 0x131d 1026 /* 0/0/0 Area Address: 49.0001 LSP MTU: 1492 NLPID: 0xcc IP Address: 2.2.2.2 Hostname: R2 Metric: 10 IS-Extended R3.01 Metric: 10 IP-Extended 1.1.1.1/32 Metric: 0 IP-Extended 2.2.2.2/32 Metric: 10 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 R3.00-00 0x00000007 0x53b9 391 /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 0x00000001 0xdfb0 384 /1199 0/0/0 Metric: 0 IS-Extended R2.00 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:R2#show isis statistics Tue Sep 15 12:28:45.139 UTC IS-IS 1 Packet and Event Statistics Dropped Dropped Total PDUs Sent Received On Input By Update Hello: 280 844 0 - CSNP: 2 190 - 0 PSNP: 15 13 0 0 LSP: 22 45 0 0 LSP Retransmissions: 0 LSP Checksum Errors: 0 IS-IS Update Queue: 0/3500 Total Traffic: 248 High Water Mark: 4 HWM Set: Tue 2026 Sep 15 12:14:58.049 UTC Total Drops: 0 IS-IS Input Queue: 0/4200 Total Traffic: 1092 High Water Mark: 6 Total Drops: 0 Level-1 LSPs sourced (new/refresh): 11/0 Route Calculations IPv4 Unicast Total: 11 Full SPF Calculations: 10 Periodic: 0 Partial Route Calc: 1 Next Hop Calculations: 0 Level-2 LSPs sourced (new/refresh): 12/0 Route Calculations IPv4 Unicast Total: 13 Full SPF Calculations: 12 Periodic: 0 Partial Route Calc: 1 Next Hop Calculations: 0 RP/0/RP0/CPU0:R2#show running-config router isis Tue Sep 15 12:28:45.264 UTC router isis 1 net 49.0001.0020.0200.2002.00 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 hello-multiplier 10 address-family ipv4 unicast metric 10 ! ! interface GigabitEthernet0/0/0/1 address-family ipv4 unicast metric 10 ! ! ! RP/0/RP0/CPU0:R2#show configuration commit list Tue Sep 15 12:28:46.264 UTC SNo. Label/ID User Line Client Time Stamp ~~~~ ~~~~~~~~ ~~~~ ~~~~ ~~~~~~ ~~~~~~~~~~ 1 1000000002 cisco vty0:node0_RP0_CPU CLI Tue Sep 15 12:25:51 2026 2 1000000001 cisco vty0:node0_RP0_CPU CLI Tue Sep 15 12:22:38 2026 RP/0/RP0/CPU0:R2#show isis adjacency-log Tue Sep 15 12:28:46.475 UTC IS-IS 1 Level 1 Adjacency Log Capacity: 100, Size: 7 When System Interface State Details --- Tue Sep 15 2026 --- 12:14:55.060 R1 Gi0/0/0/1 d -> i 12:14:55.480 R1 Gi0/0/0/0 d -> i 12:14:55.807 R1 Gi0/0/0/0 i -> u New adjacency IPv4 Unicast Up 12:14:56.058 R1 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 12:25:51.474 R1 Gi0/0/0/0 u -> d Interface state down IPv4 Unicast Down IS-IS 1 Level 2 Adjacency Log Capacity: 100, Size: 7 When System Interface State Details --- Tue Sep 15 2026 --- 12:14:55.060 R1 Gi0/0/0/1 d -> i 12:14:55.480 R1 Gi0/0/0/0 d -> i 12:14:55.807 R1 Gi0/0/0/0 i -> u New adjacency IPv4 Unicast Up 12:14:56.058 R1 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 12:25:51.474 R1 Gi0/0/0/0 u -> d Interface state down IPv4 Unicast Down