RP/0/RP0/CPU0:R1#show version Sat Sep 12 01:48:10.127 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 23 minutes XRd Control Plane Container RP/0/RP0/CPU0:R1#show interface description Sat Sep 12 01:48:10.339 UTC Interface Status Protocol Description -------------------------------------------------------------------------------- Lo0 up up Lo1 up up Lo2 up up Lo3 up up Lo4 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 R3 (10.1.3.0/24 p2p) Gi0/0/0/2 admin-down admin-down RP/0/RP0/CPU0:R1#show route Sat Sep 12 01:48:10.664 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 10.1.2.2 to network 0.0.0.0 i*L1 0.0.0.0/0 [115/10] via 10.1.2.2, 00:11:24, GigabitEthernet0/0/0/0 L 1.1.1.1/32 is directly connected, 00:20:47, Loopback0 i L1 2.2.2.2/32 [115/10] via 10.1.2.2, 00:17:12, GigabitEthernet0/0/0/0 i L1 3.3.3.3/32 [115/20] via 10.1.3.3, 00:14:08, GigabitEthernet0/0/0/1 C 10.1.2.0/24 is directly connected, 00:20:42, GigabitEthernet0/0/0/0 L 10.1.2.1/32 is directly connected, 00:20:42, GigabitEthernet0/0/0/0 C 10.1.3.0/24 is directly connected, 00:20:42, GigabitEthernet0/0/0/1 L 10.1.3.1/32 is directly connected, 00:20:42, GigabitEthernet0/0/0/1 i L1 10.2.4.0/24 [115/20] via 10.1.2.2, 00:17:12, GigabitEthernet0/0/0/0 i L1 10.3.4.0/24 [115/30] via 10.1.3.3, 00:14:08, GigabitEthernet0/0/0/1 C 172.16.0.0/24 is directly connected, 00:20:47, Loopback1 L 172.16.0.1/32 is directly connected, 00:20:47, Loopback1 C 172.16.1.0/24 is directly connected, 00:20:47, Loopback2 L 172.16.1.1/32 is directly connected, 00:20:47, Loopback2 C 172.16.2.0/24 is directly connected, 00:20:47, Loopback3 L 172.16.2.1/32 is directly connected, 00:20:47, Loopback3 C 172.16.3.0/24 is directly connected, 00:20:47, Loopback4 L 172.16.3.1/32 is directly connected, 00:20:47, Loopback4 RP/0/RP0/CPU0:R1#show route isis Sat Sep 12 01:48:10.954 UTC i*L1 0.0.0.0/0 [115/10] via 10.1.2.2, 00:11:24, GigabitEthernet0/0/0/0 i L1 2.2.2.2/32 [115/10] via 10.1.2.2, 00:17:12, GigabitEthernet0/0/0/0 i L1 3.3.3.3/32 [115/20] via 10.1.3.3, 00:14:09, GigabitEthernet0/0/0/1 i L1 10.2.4.0/24 [115/20] via 10.1.2.2, 00:17:12, GigabitEthernet0/0/0/0 i L1 10.3.4.0/24 [115/30] via 10.1.3.3, 00:14:09, GigabitEthernet0/0/0/1 RP/0/RP0/CPU0:R1#show route 172.16.0.0/22 Sat Sep 12 01:48:11.350 UTC % Network not in table RP/0/RP0/CPU0:R1#show isis Sat Sep 12 01:48:11.524 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: 4172 Respawn count: 1 Started: Sat 2026 Sep 12 01:27:11.839 UTC Null0 ready: Sat 2026 Sep 12 01:27:13.329 UTC Protocol shutdown: No System memory state: Normal Last change: never Memory state: Normal Last change: never Last/Initial memory usage/limit: 1595087/2147483648 0% Memory state monitoring interval: 60 s Memory usage/limit: 13914446/2147483648 0% Memory usage specifics (count/bytes): Nodes: 3/1224 LSPs: 3/1262 Links: 4/4896 Prefixes: 15/12648 Nets: 12/6336 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: Sat 2026 Sep 12 01:27:14.223 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 No protocols redistributed Distance: 115 Advertise Passive Interface Prefixes Only: No Interfaces supported by IS-IS 1: Loopback0 is running passively (passive in configuration) Loopback1 is running passively (passive in configuration) Loopback2 is running passively (passive in configuration) Loopback3 is running passively (passive in configuration) Loopback4 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 hostname Sat Sep 12 01:48:11.651 UTC IS-IS 1 hostnames Level System ID Dynamic Hostname 1 * 0010.0100.1001 R1 1 0020.0200.2002 R2 1 0030.0300.3003 R3 RP/0/RP0/CPU0:R1#show isis interface brief Sat Sep 12 01:48:11.820 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 - - - Lo1 Yes - - 0/0 1/1 No - - - Lo2 Yes - - 0/0 1/1 No - - - Lo3 Yes - - 0/0 1/1 No - - - Lo4 Yes - - 0/0 1/1 No - - - Gi0/0/0/0 Yes 1 - 1/1 1/1 Up 1497 - - Gi0/0/0/1 Yes 1 - 1/1 1/1 Up 1497 - - RP/0/RP0/CPU0:R1#show isis neighbors Sat Sep 12 01:48:12.039 UTC IS-IS 1 neighbors: System Id Interface SNPA State Holdtime Type IETF-NSF R2 Gi0/0/0/0 *PtoP* Up 25 L1 Capable R3 Gi0/0/0/1 *PtoP* Up 27 L1 Capable Total neighbor count: 2 RP/0/RP0/CPU0:R1#show isis database Sat Sep 12 01:48:12.318 UTC IS-IS 1 (Level-1) Link State Database LSPID LSP Seq Num LSP Checksum LSP Holdtime/Rcvd ATT/P/OL R1.00-00 * 0x00000006 0x4795 349 /* 0/0/0 R2.00-00 0x00000006 0x9e63 514 /1200 1/0/0 R3.00-00 0x00000006 0x764a 514 /1200 1/0/0 Total Level-1 LSP count: 3 Local Level-1 LSP count: 1 RP/0/RP0/CPU0:R1#show isis database detail Sat Sep 12 01:48:12.444 UTC IS-IS 1 (Level-1) Link State Database LSPID LSP Seq Num LSP Checksum LSP Holdtime/Rcvd ATT/P/OL R1.00-00 * 0x00000006 0x4795 349 /* 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: 20 IS-Extended R3.00 Metric: 0 IP-Extended 1.1.1.1/32 Metric: 10 IP-Extended 10.1.2.0/24 Metric: 20 IP-Extended 10.1.3.0/24 Metric: 0 IP-Extended 172.16.0.0/24 Metric: 0 IP-Extended 172.16.1.0/24 Metric: 0 IP-Extended 172.16.2.0/24 Metric: 0 IP-Extended 172.16.3.0/24 R2.00-00 0x00000006 0x9e63 514 /1200 1/0/0 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 Metric: 10 IP-Extended 10.2.4.0/24 R3.00-00 0x00000006 0x764a 514 /1200 1/0/0 Area Address: 49.0001 LSP MTU: 1492 NLPID: 0xcc IP Address: 3.3.3.3 Hostname: R3 Metric: 20 IS-Extended R1.00 Metric: 0 IP-Extended 3.3.3.3/32 Metric: 20 IP-Extended 10.1.3.0/24 Metric: 10 IP-Extended 10.3.4.0/24 Total Level-1 LSP count: 3 Local Level-1 LSP count: 1 RP/0/RP0/CPU0:R1#show isis topology Sat Sep 12 01:48:12.570 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 *PtoP* R3 20 R3 Gi0/0/0/1 *PtoP* RP/0/RP0/CPU0:R1#show isis route Sat Sep 12 01:48:12.727 UTC IS-IS 1 IPv4 Unicast routes Codes: L1 - level 1, L2 - level 2, ia - interarea (leaked into level 1) df - level 1 default (closest attached router), su - summary null C - connected, S - static, R - RIP, B - BGP, O - OSPF E - EIGRP, A - access/subscriber, M - mobile, a - application i - IS-IS (redistributed from another instance) Maximum parallel path count: 8 df 0.0.0.0/0 [10/115] via 10.1.2.2, GigabitEthernet0/0/0/0, R2, Weight: 0 C 1.1.1.1/32 is directly connected, Loopback0 L1 2.2.2.2/32 [10/115] via 10.1.2.2, GigabitEthernet0/0/0/0, R2, Weight: 0 L1 3.3.3.3/32 [20/115] via 10.1.3.3, GigabitEthernet0/0/0/1, R3, Weight: 0 C 10.1.2.0/24 is directly connected, GigabitEthernet0/0/0/0 C 10.1.3.0/24 is directly connected, GigabitEthernet0/0/0/1 L1 10.2.4.0/24 [20/115] via 10.1.2.2, GigabitEthernet0/0/0/0, R2, Weight: 0 L1 10.3.4.0/24 [30/115] via 10.1.3.3, GigabitEthernet0/0/0/1, R3, Weight: 0 C 172.16.0.0/24 is directly connected, Loopback1 C 172.16.1.0/24 is directly connected, Loopback2 C 172.16.2.0/24 is directly connected, Loopback3 C 172.16.3.0/24 is directly connected, Loopback4 RP/0/RP0/CPU0:R1#show isis adjacency-log Sat Sep 12 01:48:12.928 UTC IS-IS 1 Level 1 Adjacency Log Capacity: 100, Size: 4 When System Interface State Details --- Sat Sep 12 2026 --- 01:30:26.204 R2 Gi0/0/0/0 d -> i 01:30:26.812 R2 Gi0/0/0/0 i -> u New adjacency IPv4 Unicast Up 01:33:29.556 R3 Gi0/0/0/1 d -> i 01:33:30.163 R3 Gi0/0/0/1 i -> u New adjacency IPv4 Unicast Up RP/0/RP0/CPU0:R1#show isis spf-log Sat Sep 12 01:48:13.072 UTC IS-IS 1 Level 1 IPv4 Unicast Route Calculation Log Capacity: 210, Size: 11 Time Total Trig. Timestamp Type (ms) Nodes Count First Trigger LSP Triggers ------------ ----- ----- ----- ----- -------------------- ---------------------- --- Sat Sep 12 2026 --- 01:27:14.418 FSPF 0 0 2 CONFIG 01:27:25.412 FSPF 0 1 7 R1.00-00 CONFIG NEWNODE NEWLSP OVLSET PREFIXGOOD AREAADDR IPADDR 01:27:27.479 FSPF 0 1 1 R1.00-00 OVLCLR 01:27:28.862 PRC 0 1 1 R1.00-00 PREFIXGOOD 01:30:28.170 FSPF 0 2 5 R2.00-00 NEWNODE NEWLSP PREFIXGOOD AREAADDR IPADDR 01:30:30.045 FSPF 0 2 1 R2.00-00 LINKGOOD 01:30:58.538 FSPF 2 2 1 R1.00-00 LINKGOOD 01:33:31.521 FSPF 0 3 6 R3.00-00 NEWNODE NEWLSP LINKGOOD PREFIXGOOD AREAADDR IPADDR 01:34:01.891 FSPF 2 3 1 R1.00-00 LINKGOOD 01:36:46.799 PRC 1 3 1 R2.00-00 ATTSET 01:36:47.241 PRC 0 3 1 R3.00-00 ATTSET RP/0/RP0/CPU0:R1#show isis lsp-log Sat Sep 12 01:48:13.192 UTC IS-IS 1 Level 1 LSP Generation Log Capacity: 50, Size: 6 When Count Interface Triggers --- Sat Sep 12 2026 --- 01:27:14.469 2 CONFIG CONFIG 01:27:23.262 1 Lo0 IPUP 01:27:27.428 1 LSPDBOL 01:27:28.811 1 Gi0/0/0/0 IPUP 01:30:58.487 1 Gi0/0/0/0 SABIT 01:34:01.840 1 Gi0/0/0/1 SABIT RP/0/RP0/CPU0:R1#show isis statistics Sat Sep 12 01:48:13.371 UTC IS-IS 1 Packet and Event Statistics Dropped Dropped Total PDUs Sent Received On Input By Update Hello: 290 228 0 - CSNP: 2 2 - 0 PSNP: 5 8 0 0 LSP: 9 5 0 0 LSP Retransmissions: 0 LSP Checksum Errors: 0 IS-IS Update Queue: 0/3500 Total Traffic: 15 High Water Mark: 1 HWM Set: Sat 2026 Sep 12 01:30:27.119 UTC Total Drops: 0 IS-IS Input Queue: 0/4200 Total Traffic: 243 High Water Mark: 1 Total Drops: 0 Level-1 LSPs sourced (new/refresh): 8/0 Route Calculations IPv4 Unicast Total: 11 Full SPF Calculations: 8 Periodic: 0 Partial Route Calc: 3 Next Hop Calculations: 0