RP/0/RP0/CPU0:R1#show version Wed Sep 9 03:55:31.047 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 11 minutes XRd Control Plane Container RP/0/RP0/CPU0:R1#show interface description Wed Sep 9 03:55:31.133 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 SW (10.1.0.0/24 LAN) Gi0/0/0/1 admin-down admin-down Gi0/0/0/2 admin-down admin-down RP/0/RP0/CPU0:R1#show route Wed Sep 9 03:55:31.299 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 10.1.0.2 to network 0.0.0.0 i*L1 0.0.0.0/0 [115/10] via 10.1.0.2, 00:02:54, GigabitEthernet0/0/0/0 L 1.1.1.1/32 is directly connected, 00:09:09, Loopback0 i L1 2.2.2.2/32 [115/10] via 10.1.0.2, 00:03:22, GigabitEthernet0/0/0/0 C 10.1.0.0/24 is directly connected, 00:09:04, GigabitEthernet0/0/0/0 L 10.1.0.1/32 is directly connected, 00:09:04, GigabitEthernet0/0/0/0 i L1 10.2.3.0/24 [115/20] via 10.1.0.2, 00:03:22, GigabitEthernet0/0/0/0 RP/0/RP0/CPU0:R1#show route isis Wed Sep 9 03:55:31.481 UTC i*L1 0.0.0.0/0 [115/10] via 10.1.0.2, 00:02:55, GigabitEthernet0/0/0/0 i L1 2.2.2.2/32 [115/10] via 10.1.0.2, 00:03:22, GigabitEthernet0/0/0/0 i L1 10.2.3.0/24 [115/20] via 10.1.0.2, 00:03:22, GigabitEthernet0/0/0/0 RP/0/RP0/CPU0:R1#show isis Wed Sep 9 03:55:31.732 UTC IS-IS Router: 1 System Id: 0010.0100.1001 Hostname: R1 IS Levels: level-1 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: 4420 Respawn count: 1 Started: Wed 2026 Sep 09 03:46:11.476 UTC Null0 ready: Wed 2026 Sep 09 03:46:12.990 UTC Protocol shutdown: No System memory state: Normal Last change: never Memory state: Normal Last change: never Last/Initial memory usage/limit: 1594831/2147483648 0% Memory state monitoring interval: 60 s Memory usage/limit: 13795910/2147483648 0% Memory usage specifics (count/bytes): Nodes: 3/1224 LSPs: 3/1256 Links: 4/4896 Prefixes: 6/2064 Nets: 5/3056 Paths: 8/768 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: Wed 2026 Sep 09 03:46:14.078 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): Narrow/Narrow 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) RP/0/RP0/CPU0:R1#show isis hostname Wed Sep 9 03:55:31.854 UTC IS-IS 1 hostnames Level System ID Dynamic Hostname 1 * 0010.0100.1001 R1 1 0020.0200.2002 R2 RP/0/RP0/CPU0:R1#show isis interface Wed Sep 9 03:55:31.980 UTC IS-IS 1 Interfaces Loopback0 Enabled Adjacency Formation: Disabled (Passive in IS-IS cfg) Prefix Advertisement: Enabled Bandwidth: 0 Circuit Type: level-1 (Configured: 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 (Configured: level-1-2) Media Type: LAN Circuit Number: 1 Last IIH Received: 03:55:29 (2.43 sec ago), 1497 octets Last PDU Rejected: 03:55:31 (0.30 sec ago), 1497 octets, L2 LAN IIH, Circuit-Type mismatch Last IIH Sent: 03:55:29 (2.36 sec ago), 1497 octets IPv4 BFD: Disabled IPv6 BFD: Disabled Level-1 Adjacency Count: 1 Adjacency Flaps: 1 LAN ID: R2.01 Priority (Local/DIS): 64/64 Next LAN IIH in: 6 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: 5254.0054.6449 Layer-2 Multicast: All Level-1 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: 10.1.0.1 Global Prefix: 10.1.0.0/24 LSP Transmission is: idle LSP Transmit Timer in: 0 ms LSP Burst Size: 9 LSPs in the next 0 ms LSP fast flooding: Unsupported PME Link Delays and Loss: - RP/0/RP0/CPU0:R1#show isis interface brief Wed Sep 9 03:55:32.106 UTC IS-IS 1 Interfaces Interface All Adjs Adj Topos Adv Topos CLNS MTU Prio OK L1 L2 Run/Cfg Run/Cfg L1 L2 ----------------- --- --------- --------- --------- ---- ---- -------- Lo0 Yes - - 0/0 1/1 No - - - Gi0/0/0/0 Yes 1 - 1/1 1/1 Up 1497 64 - RP/0/RP0/CPU0:R1#show isis neighbors Wed Sep 9 03:55:32.226 UTC IS-IS 1 neighbors: System Id Interface SNPA State Holdtime Type IETF-NSF R2 Gi0/0/0/0 5254.00b9.ac23 Up 7 L1 Capable Total neighbor count: 1 RP/0/RP0/CPU0:R1#show isis neighbors detail Wed Sep 9 03:55:32.474 UTC IS-IS 1 neighbors: System Id Interface SNPA State Holdtime Type IETF-NSF R2 Gi0/0/0/0 5254.00b9.ac23 Up 9 L1 Capable Area Address(es): 49.0001 IPv4 Address(es): 10.1.0.2* Topologies: 'IPv4 Unicast' Uptime: 00:03:27 Total neighbor count: 1 RP/0/RP0/CPU0:R1#show isis database Wed Sep 9 03:55:32.650 UTC IS-IS 1 (Level-1) Link State Database LSPID LSP Seq Num LSP Checksum LSP Holdtime/Rcvd ATT/P/OL R1.00-00 * 0x00000008 0x0d0d 995 /* 0/0/0 R2.00-00 0x0000000a 0x53e8 1023 /1200 1/0/0 R2.01-00 0x00000003 0xaa87 994 /1200 0/0/0 Total Level-1 LSP count: 3 Local Level-1 LSP count: 1 RP/0/RP0/CPU0:R1#show isis database detail Wed Sep 9 03:55:32.767 UTC IS-IS 1 (Level-1) Link State Database LSPID LSP Seq Num LSP Checksum LSP Holdtime/Rcvd ATT/P/OL R1.00-00 * 0x00000008 0x0d0d 995 /* 0/0/0 Area Address: 49.0001 LSP MTU: 1492 NLPID: 0xcc IP Address: 1.1.1.1 Hostname: R1 Metric: 0 IP 1.1.1.1/32 Metric: 10 IP 10.1.0.0/24 Metric: 10 IS R2.01 R2.00-00 0x0000000a 0x53e8 1023 /1200 1/0/0 Area Address: 49.0001 LSP MTU: 1492 NLPID: 0xcc IP Address: 2.2.2.2 Hostname: R2 Metric: 0 IP 2.2.2.2/32 Metric: 10 IP 10.1.0.0/24 Metric: 10 IP 10.2.3.0/24 Metric: 10 IS R2.01 R2.01-00 0x00000003 0xaa87 994 /1200 0/0/0 Metric: 0 IS R1.00 Metric: 0 IS R2.00 Total Level-1 LSP count: 3 Local Level-1 LSP count: 1 RP/0/RP0/CPU0:R1#show isis topology Wed Sep 9 03:55:32.885 UTC IS-IS 1 paths to IPv4 Unicast (Level-1) routers System Id Metric Next-Hop Interface SNPA R1 -- R2 10 R2 Gi0/0/0/0 5254.00b9.ac23 RP/0/RP0/CPU0:R1#show isis adjacency Wed Sep 9 03:55:32.997 UTC IS-IS 1 Level-1 adjacencies: System Id Interface SNPA State Hold Changed NSF IPv4 IPv6 BFD BFD R2 Gi0/0/0/0 5254.00b9.ac23 Up 9 00:03:27 Yes None None Total adjacency count: 1 RP/0/RP0/CPU0:R1#show isis adjacency detail Wed Sep 9 03:55:33.162 UTC IS-IS 1 Level-1 adjacencies: System Id Interface SNPA State Hold Changed NSF IPv4 IPv6 BFD BFD R2 Gi0/0/0/0 5254.00b9.ac23 Up 9 00:03:27 Yes None None Area Address: 49.0001 Neighbor IPv4 Address: 10.1.0.2* DIS Priority: 64 Local Priority: 64 Neighbor Priority: 64 (DIS) Topology: IPv4 Unicast BFD Status: Neighbor Useable (BFD Not Configured) Total adjacency count: 1 RP/0/RP0/CPU0:R1#show isis adjacency-log Wed Sep 9 03:55:33.309 UTC IS-IS 1 Level 1 Adjacency Log Capacity: 100, Size: 4 When System Interface State Details --- Wed Sep 9 2026 --- 03:46:26.773 R2 Gi0/0/0/0 d -> i 03:46:27.695 R2 Gi0/0/0/0 i -> u New adjacency IPv4 Unicast Up 03:52:04.508 R2 Gi0/0/0/0 u -> i Neighbor forgot us IPv4 Unicast Down 03:52:05.507 R2 Gi0/0/0/0 i -> u Restarted IPv4 Unicast Up RP/0/RP0/CPU0:R1#show isis trace standard | include ADJ Wed Sep 9 03:55:33.430 UTC Sep 9 03:46:24.181 isis/1/sev 0/RP0/CPU0 t4622 isis_ssm_run_state:2267 SSM_STATE_RUN RIB-SRV6-ADJ-SIDS-WAIT Sep 9 03:46:26.773 isis/1/std 0/RP0/CPU0 t4515 isis_osi_adj_update:4523 ADJ_CHANGE_STATE L1 Gi0/0/0/0 0020.0200.2002 Sep 9 03:46:26.773 isis/1/std 0/RP0/CPU0 t4515 isis_osi_adj_update:4549 ADJ_CHANGE_PRIORITY L1 Gi0/0/0/0 0020.0200.2002 128 Sep 9 03:46:26.773 isis/1/std 0/RP0/CPU0 t4515 isis_osi_adj_update:4589 ADJ_CHANGE_NEXTHOP L1 Gi0/0/0/0 0020.0200.2002 IPv4 Sep 9 03:46:26.773 isis/1/sev 0/RP0/CPU0 t4515 isis_trap_gen_adjacency_change:879 MIB_TRAP_GEN_LEVEL_IDB_ADJACENCY_CHANGE L1 Gi0/0/0/0 0020.0200.2002 Sep 9 03:46:27.695 isis/1/std 0/RP0/CPU0 t4515 isis_osi_adj_update:4523 ADJ_CHANGE_STATE L1 Gi0/0/0/0 0020.0200.2002 Sep 9 03:46:27.695 isis/1/std 0/RP0/CPU0 t4515 isis_osi_adj_update:4549 ADJ_CHANGE_PRIORITY L1 Gi0/0/0/0 0020.0200.2002 64 Sep 9 03:46:27.695 isis/1/std 0/RP0/CPU0 t4515 isis_osi_adj_ltopo_add:1446 ADJ_SUP_CHG Gi0/0/0/0 L1 Sep 9 03:46:27.695 isis/1/std 0/RP0/CPU0 t4515 isis_osi_adj_ltopo_add:1480 ADJ_CHANGE_LTOPO_ADD L1 Gi0/0/0/0 0020.0200.2002 Standard (IPv4 Unicast) Sep 9 03:46:27.695 isis/1/sev 0/RP0/CPU0 t4515 isis_trap_gen_adjacency_change:879 MIB_TRAP_GEN_LEVEL_IDB_ADJACENCY_CHANGE L1 Gi0/0/0/0 0020.0200.2002 Sep 9 03:52:04.507 isis/1/std 0/RP0/CPU0 t4515 isis_osi_adj_update:4523 ADJ_CHANGE_STATE L1 Gi0/0/0/0 0020.0200.2002 Sep 9 03:52:04.507 isis/1/std 0/RP0/CPU0 t4515 isis_osi_adj_update:4549 ADJ_CHANGE_PRIORITY L1 Gi0/0/0/0 0020.0200.2002 128 Sep 9 03:52:04.507 isis/1/std 0/RP0/CPU0 t4515 isis_osi_adj_ltopo_remove:1515 ADJ_CHANGE_LTOPO_DEL L1 Gi0/0/0/0 0020.0200.2002 Standard (IPv4 Unicast) Sep 9 03:52:04.507 isis/1/std 0/RP0/CPU0 t4515 isis_osi_adj_ltopo_remove:1545 ADJ_SUP_CHG Gi0/0/0/0 L1 Sep 9 03:52:04.508 isis/1/sev 0/RP0/CPU0 t4515 isis_trap_gen_adjacency_change:879 MIB_TRAP_GEN_LEVEL_IDB_ADJACENCY_CHANGE L1 Gi0/0/0/0 0020.0200.2002 Sep 9 03:52:05.507 isis/1/std 0/RP0/CPU0 t4515 isis_osi_adj_update:4523 ADJ_CHANGE_STATE L1 Gi0/0/0/0 0020.0200.2002 Sep 9 03:52:05.507 isis/1/std 0/RP0/CPU0 t4515 isis_osi_adj_update:4549 ADJ_CHANGE_PRIORITY L1 Gi0/0/0/0 0020.0200.2002 64 Sep 9 03:52:05.507 isis/1/std 0/RP0/CPU0 t4515 isis_osi_adj_ltopo_add:1446 ADJ_SUP_CHG Gi0/0/0/0 L1 Sep 9 03:52:05.507 isis/1/std 0/RP0/CPU0 t4515 isis_osi_adj_ltopo_add:1480 ADJ_CHANGE_LTOPO_ADD L1 Gi0/0/0/0 0020.0200.2002 Standard (IPv4 Unicast) Sep 9 03:52:05.507 isis/1/sev 0/RP0/CPU0 t4515 isis_trap_gen_adjacency_change:879 MIB_TRAP_GEN_LEVEL_IDB_ADJACENCY_CHANGE L1 Gi0/0/0/0 0020.0200.2002 RP/0/RP0/CPU0:R1#show isis trace all | include 3WAY Wed Sep 9 03:55:33.577 UTC RP/0/RP0/CPU0:R1#show isis spf-log Wed Sep 9 03:55:33.894 UTC IS-IS 1 Level 1 IPv4 Unicast Route Calculation Log Capacity: 210, Size: 12 Time Total Trig. Timestamp Type (ms) Nodes Count First Trigger LSP Triggers ------------ ----- ----- ----- ----- -------------------- ---------------------- --- Wed Sep 9 2026 --- 03:46:24.175 FSPF 0 1 7 R1.00-00 CONFIG NEWNODE NEWLSP OVLSET PREFIXGOOD AREAADDR IPADDR 03:46:26.322 FSPF 0 1 1 R1.00-00 OVLCLR 03:46:27.924 PRC 0 1 1 R1.00-00 PREFIXGOOD 03:46:29.795 FSPF 0 3 3 R2.01-00 NEWNODE NEWLSP LINKGOOD 03:46:31.396 FSPF 0 3 7 R2.01-00 NEWNODE NEWLSP LINKGOOD PREFIXGOOD AREAADDR IPADDR 03:46:37.322 FSPF 50 3 1 R1.00-00 LINKGOOD 03:47:06.149 PRC 1 3 1 R2.00-00 ATTSET 03:52:04.619 FSPF 2 3 2 R1.00-00 DELADJ LINKBAD 03:52:07.611 FSPF 0 3 2 R2.00-00 ATTCLR OVLSET 03:52:08.634 FSPF 2 3 1 R1.00-00 LINKGOOD 03:52:16.568 FSPF 0 3 1 R2.00-00 OVLCLR 03:52:36.545 PRC 0 3 1 R2.00-00 ATTSET RP/0/RP0/CPU0:R1#show isis lsp-log Wed Sep 9 03:55:34.115 UTC IS-IS 1 Level 1 LSP Generation Log Capacity: 50, Size: 8 When Count Interface Triggers --- Wed Sep 9 2026 --- 03:46:14.392 1 CONFIG 03:46:16.403 1 CONFIG 03:46:22.232 1 Lo0 IPUP 03:46:26.271 1 LSPDBOL 03:46:27.873 2 Gi0/0/0/0 MSD SABIT 03:46:37.232 1 Gi0/0/0/0 SABIT 03:52:04.568 1 Gi0/0/0/0 SABIT 03:52:08.583 1 Gi0/0/0/0 SABIT RP/0/RP0/CPU0:R1#show isis statistics Wed Sep 9 03:55:34.282 UTC IS-IS 1 Packet and Event Statistics Dropped Dropped Total PDUs Sent Received On Input By Update Hello: 67 190 0 - CSNP: 0 60 - 0 PSNP: 0 0 0 0 LSP: 5 12 0 0 LSP Retransmissions: 0 LSP Checksum Errors: 0 IS-IS Update Queue: 0/3500 Total Traffic: 72 High Water Mark: 2 HWM Set: Wed 2026 Sep 09 03:52:07.554 UTC Total Drops: 0 IS-IS Input Queue: 0/4200 Total Traffic: 327 High Water Mark: 2 Total Drops: 0 Level-1 LSPs sourced (new/refresh): 10/0 Route Calculations IPv4 Unicast Total: 12 Full SPF Calculations: 9 Periodic: 0 Partial Route Calc: 3 Next Hop Calculations: 0 RP/0/RP0/CPU0:R1#show cef Wed Sep 9 03:55:34.407 UTC Prefix Next Hop Interface ------------------- ------------------- ------------------ 0.0.0.0/0 10.1.0.2/32 GigabitEthernet0/0/0/0 0.0.0.0/32 broadcast 1.1.1.1/32 receive Loopback0 2.2.2.2/32 10.1.0.2/32 GigabitEthernet0/0/0/0 10.1.0.0/24 attached GigabitEthernet0/0/0/0 10.1.0.0/32 broadcast GigabitEthernet0/0/0/0 10.1.0.1/32 receive GigabitEthernet0/0/0/0 10.1.0.2/32 10.1.0.2/32 GigabitEthernet0/0/0/0 10.1.0.255/32 broadcast GigabitEthernet0/0/0/0 10.2.3.0/24 10.1.0.2/32 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