RP/0/RP0/CPU0:R2#show version Thu Sep 10 00:26:15.313 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 13 minutes XRd Control Plane Container RP/0/RP0/CPU0:R2#show interface description Thu Sep 10 00:26:15.483 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 R1 (10.1.2.0/24) Gi0/0/0/1 up up to R3 (10.2.3.0/24) Gi0/0/0/2 admin-down admin-down RP/0/RP0/CPU0:R2#show route Thu Sep 10 00:26:15.663 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 L2 1.1.1.1/32 [115/10] via 10.1.2.1, 00:08:07, GigabitEthernet0/0/0/0 L 2.2.2.2/32 is directly connected, 00:11:33, Loopback0 i L2 3.3.3.3/32 [115/10] via 10.2.3.3, 00:08:25, GigabitEthernet0/0/0/1 C 10.1.2.0/24 is directly connected, 00:11:30, GigabitEthernet0/0/0/0 L 10.1.2.2/32 is directly connected, 00:11:30, GigabitEthernet0/0/0/0 C 10.2.3.0/24 is directly connected, 00:11:30, GigabitEthernet0/0/0/1 L 10.2.3.2/32 is directly connected, 00:11:30, GigabitEthernet0/0/0/1 RP/0/RP0/CPU0:R2#show route isis Thu Sep 10 00:26:15.845 UTC i L2 1.1.1.1/32 [115/10] via 10.1.2.1, 00:08:07, GigabitEthernet0/0/0/0 i L2 3.3.3.3/32 [115/10] via 10.2.3.3, 00:08:25, GigabitEthernet0/0/0/1 RP/0/RP0/CPU0:R2#show isis Thu Sep 10 00:26:15.977 UTC IS-IS Router: 1 System Id: 0020.0200.2002 Hostname: R2 IS Levels: level-2-only 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: 4231 Respawn count: 1 Started: Thu 2026 Sep 10 00:14:32.806 UTC Null0 ready: Thu 2026 Sep 10 00:14:34.310 UTC Protocol shutdown: No System memory state: Normal Last change: never Memory state: Normal Last change: never Last/Initial memory usage/limit: 1595343/2147483648 0% Memory state monitoring interval: 60 s Memory usage/limit: 13822150/2147483648 0% Memory usage specifics (count/bytes): Nodes: 3/1224 LSPs: 3/1258 Links: 4/4896 Prefixes: 7/2408 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: Thu 2026 Sep 10 00:14:35.115 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-2 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) GigabitEthernet0/0/0/1 is running actively (active in configuration) RP/0/RP0/CPU0:R2#show isis hostname Thu Sep 10 00:26:16.207 UTC IS-IS 1 hostnames Level System ID Dynamic Hostname 2 0010.0100.1001 R1 2 * 0020.0200.2002 R2 2 0030.0300.3003 R3 RP/0/RP0/CPU0:R2#show isis interface Thu Sep 10 00:26:16.319 UTC IS-IS 1 Interfaces Loopback0 Enabled Adjacency Formation: Disabled (Passive in IS-IS cfg) Prefix Advertisement: Enabled Bandwidth: 0 Circuit Type: level-2-only (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: 2.2.2.2/32 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-2-only (Configured: level-1-2) Media Type: P2P Circuit Number: 0 Extended Circuit Number: 4 Last IIH Received: 00:26:11 (4.68 sec ago), 1497 octets Last PDU Rejected: 00:17:40 (00:08:36 ago), 90 octets, L2 LSP, Wrong Adjacency State Last IIH Sent: 00:26:11 (5.35 sec ago), 1497 octets Sending next P2P IIH in: 2 s IPv4 BFD: Disabled IPv6 BFD: Disabled Level-2 Adjacency Count: 1 Adjacency Flaps: 1 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: 5254.0037.edc9 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: 10.1.2.2 Global Prefix: 10.1.2.0/24 LSP Transmission is: idle LSP Transmit Timer in: 0 ms LSP Burst Size: 9 LSPs in the next 0 ms LSP Rexmit Queue Size: 0 Adjacency Up: 00:17:52.717 Received CSNP complete: never LSP Pacing Start: 00:17:53.718 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-2-only (Configured: level-1-2) Media Type: P2P Circuit Number: 0 Extended Circuit Number: 4 Last IIH Received: 00:26:10 (5.68 sec ago), 1497 octets Last PDU Rejected: 00:15:14 (00:11:02 ago), 90 octets, L2 LSP, Wrong Adjacency State Last IIH Sent: 00:26:08 (8.06 sec ago), 1497 octets Sending next P2P IIH in: 528 ms IPv4 BFD: Disabled IPv6 BFD: Disabled Level-2 Adjacency Count: 1 Adjacency Flaps: 1 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: 5254.0070.3d04 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: 10.2.3.2 Global Prefix: 10.2.3.0/24 LSP Transmission is: idle LSP Transmit Timer in: 0 ms LSP Burst Size: 9 LSPs in the next 0 ms LSP Rexmit Queue Size: 0 Adjacency Up: 00:17:50.012 Received CSNP complete: never LSP Pacing Start: 00:17:51.012 LSP fast flooding: Disabled PME Link Delays and Loss: - RP/0/RP0/CPU0:R2#show isis interface brief Thu Sep 10 00:26:16.460 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 - - Gi0/0/0/1 Yes - 1 1/1 1/1 Up 1497 - - RP/0/RP0/CPU0:R2#show isis neighbors Thu Sep 10 00:26:16.570 UTC IS-IS 1 neighbors: System Id Interface SNPA State Holdtime Type IETF-NSF R1 Gi0/0/0/0 *PtoP* Up 25 L2 Capable R3 Gi0/0/0/1 *PtoP* Up 26 L2 Capable Total neighbor count: 2 RP/0/RP0/CPU0:R2#show isis neighbors detail Thu Sep 10 00:26:16.707 UTC IS-IS 1 neighbors: System Id Interface SNPA State Holdtime Type IETF-NSF R1 Gi0/0/0/0 *PtoP* Up 25 L2 Capable Area Address(es): 49.0001 IPv4 Address(es): 10.1.2.1* Topologies: 'IPv4 Unicast' Uptime: 00:08:24 R3 Gi0/0/0/1 *PtoP* Up 26 L2 Capable Area Address(es): 49.0001 IPv4 Address(es): 10.2.3.3* Topologies: 'IPv4 Unicast' Uptime: 00:08:26 Total neighbor count: 2 RP/0/RP0/CPU0:R2#show isis database Thu Sep 10 00:26:16.871 UTC IS-IS 1 (Level-2) Link State Database LSPID LSP Seq Num LSP Checksum LSP Holdtime/Rcvd ATT/P/OL R1.00-00 0x00000011 0x17f6 115 /120 0/0/0 R2.00-00 * 0x0000000f 0xcd95 96 /* 0/0/0 R3.00-00 0x0000000f 0x7542 86 /120 0/0/0 Total Level-2 LSP count: 3 Local Level-2 LSP count: 1 RP/0/RP0/CPU0:R2#show isis database detail Thu Sep 10 00:26:17.030 UTC IS-IS 1 (Level-2) Link State Database LSPID LSP Seq Num LSP Checksum LSP Holdtime/Rcvd ATT/P/OL R1.00-00 0x00000011 0x17f6 115 /120 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 10.1.2.0/24 Metric: 10 IS R2.00 R2.00-00 * 0x0000000f 0xcd95 96 /* 0/0/0 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 10.1.2.0/24 Metric: 10 IP 10.2.3.0/24 Metric: 10 IS R1.00 Metric: 10 IS R3.00 R3.00-00 0x0000000f 0x7542 86 /120 0/0/0 Area Address: 49.0001 LSP MTU: 1492 NLPID: 0xcc IP Address: 3.3.3.3 Hostname: R3 Metric: 0 IP 3.3.3.3/32 Metric: 10 IP 10.2.3.0/24 Metric: 10 IS R2.00 Total Level-2 LSP count: 3 Local Level-2 LSP count: 1 RP/0/RP0/CPU0:R2#show isis topology Thu Sep 10 00:26:17.309 UTC IS-IS 1 paths to IPv4 Unicast (Level-2) routers System Id Metric Next-Hop Interface SNPA R1 10 R1 Gi0/0/0/0 *PtoP* R2 -- R3 10 R3 Gi0/0/0/1 *PtoP* RP/0/RP0/CPU0:R2#show isis adjacency Thu Sep 10 00:26:17.461 UTC IS-IS 1 Level-2 adjacencies: System Id Interface SNPA State Hold Changed NSF IPv4 IPv6 BFD BFD R1 Gi0/0/0/0 *PtoP* Up 25 00:08:24 Yes None None R3 Gi0/0/0/1 *PtoP* Up 25 00:08:27 Yes None None Total adjacency count: 2 RP/0/RP0/CPU0:R2#show isis adjacency-log Thu Sep 10 00:26:17.606 UTC IS-IS 1 Level 2 Adjacency Log Capacity: 100, Size: 10 When System Interface State Details --- Thu Sep 10 2026 --- 00:14:55.003 R1 Gi0/0/0/0 d -> i 00:14:55.707 R1 Gi0/0/0/0 i -> u New adjacency IPv4 Unicast Up 00:15:03.328 R3 Gi0/0/0/1 d -> i 00:15:29.701 R3 Gi0/0/0/1 i -> u New adjacency IPv4 Unicast Up 00:16:29.136 R1 Gi0/0/0/0 u -> i 3-way state down IPv4 Unicast Down 00:16:59.136 R1 Gi0/0/0/0 i -> d Holdtime expired 00:17:33.896 R1 Gi0/0/0/0 d -> i 00:17:40.300 R3 Gi0/0/0/1 u -> i 3-way state down IPv4 Unicast Down 00:17:50.012 R3 Gi0/0/0/1 i -> u Restarted IPv4 Unicast Up 00:17:52.718 R1 Gi0/0/0/0 i -> u New adjacency IPv4 Unicast Up RP/0/RP0/CPU0:R2#show isis spf-log Thu Sep 10 00:26:17.917 UTC IS-IS 1 Level 2 IPv4 Unicast Route Calculation Log Capacity: 210, Size: 8 Time Total Trig. Timestamp Type (ms) Nodes Count First Trigger LSP Triggers ------------ ----- ----- ----- ----- -------------------- ---------------------- --- Thu Sep 10 2026 --- 00:14:45.297 FSPF 0 1 8 R2.00-00 CONFIG NEWNODE NEWLSP OVLSET PREFIXGOOD AREAADDR IPADDR 00:14:47.365 FSPF 0 1 1 R2.00-00 OVLCLR 00:15:26.755 FSPF 0 2 6 R1.00-00 NEWNODE NEWLSP LINKGOOD PREFIXGOOD AREAADDR IPADDR 00:15:34.066 FSPF 0 3 6 R3.00-00 NEWNODE NEWLSP LINKGOOD PREFIXGOOD AREAADDR IPADDR 00:15:45.346 FSPF 50 3 1 R2.00-00 LINKGOOD 00:17:40.448 FSPF 48 3 2 R2.00-00 DELADJ LINKBAD 00:17:50.148 FSPF 49 3 1 R2.00-00 LINKGOOD 00:18:08.220 FSPF 2 3 1 R2.00-00 LINKGOOD RP/0/RP0/CPU0:R2#show isis lsp-log Thu Sep 10 00:26:18.239 UTC IS-IS 1 Level 2 LSP Generation Log Capacity: 50, Size: 9 When Count Interface Triggers --- Thu Sep 10 2026 --- 00:14:35.402 2 CONFIG CONFIG 00:14:42.146 1 Lo0 IPUP 00:14:45.296 2 Gi0/0/0/0 LSPDBOL MSD 00:14:47.314 1 LSPDBOL 00:15:45.268 1 Gi0/0/0/1 SABIT 00:17:40.396 2 Gi0/0/0/1 DELADJ BESTADJ 00:17:50.063 1 Gi0/0/0/1 NEWADJ 00:18:08.169 1 Gi0/0/0/0 SABIT 00:20:25.146 1 CONFIG RP/0/RP0/CPU0:R2#show isis statistics Thu Sep 10 00:26:18.601 UTC IS-IS 1 Packet and Event Statistics Dropped Dropped Total PDUs Sent Received On Input By Update Hello: 166 134 0 - CSNP: 4 0 - 0 PSNP: 22 41 0 0 LSP: 67 22 0 0 LSP Retransmissions: 22 LSP Checksum Errors: 0 IS-IS Update Queue: 0/3500 Total Traffic: 63 High Water Mark: 2 HWM Set: Thu 2026 Sep 10 00:18:08.699 UTC Total Drops: 0 IS-IS Input Queue: 0/4200 Total Traffic: 204 High Water Mark: 4 Total Drops: 0 Level-2 LSPs sourced (new/refresh): 10/6 Route Calculations IPv4 Unicast Total: 8 Full SPF Calculations: 8 Periodic: 0 Partial Route Calc: 0 Next Hop Calculations: 0 RP/0/RP0/CPU0:R2#show cef Thu Sep 10 00:26:18.814 UTC Prefix Next Hop Interface ------------------- ------------------- ------------------ 0.0.0.0/0 drop default handler 0.0.0.0/32 broadcast 1.1.1.1/32 10.1.2.1/32 GigabitEthernet0/0/0/0 2.2.2.2/32 receive Loopback0 3.3.3.3/32 10.2.3.3/32 GigabitEthernet0/0/0/1 10.1.2.0/24 attached GigabitEthernet0/0/0/0 10.1.2.0/32 broadcast GigabitEthernet0/0/0/0 10.1.2.1/32 10.1.2.1/32 GigabitEthernet0/0/0/0 10.1.2.2/32 receive GigabitEthernet0/0/0/0 10.1.2.255/32 broadcast GigabitEthernet0/0/0/0 10.2.3.0/24 attached GigabitEthernet0/0/0/1 10.2.3.0/32 broadcast GigabitEthernet0/0/0/1 10.2.3.2/32 receive GigabitEthernet0/0/0/1 10.2.3.3/32 10.2.3.3/32 GigabitEthernet0/0/0/1 10.2.3.255/32 broadcast GigabitEthernet0/0/0/1 224.0.0.0/4 0.0.0.0/32 224.0.0.0/24 receive 255.255.255.255/32 broadcast