RP/0/RP0/CPU0:R2#show version Thu Sep 10 00:42:55.649 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 30 minutes XRd Control Plane Container RP/0/RP0/CPU0:R2#show interface description Thu Sep 10 00:42:55.832 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 00:42:56.214 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, 00:11:38, GigabitEthernet0/0/0/0 L 2.2.2.2/32 is directly connected, 00:28:14, Loopback0 i L2 3.3.3.3/32 [115/10] via 10.2.3.3, 00:02:59, GigabitEthernet0/0/0/1 C 10.1.2.0/24 is directly connected, 00:28:11, GigabitEthernet0/0/0/0 L 10.1.2.2/32 is directly connected, 00:28:11, GigabitEthernet0/0/0/0 C 10.2.3.0/24 is directly connected, 00:28:11, GigabitEthernet0/0/0/1 L 10.2.3.2/32 is directly connected, 00:28:11, GigabitEthernet0/0/0/1 RP/0/RP0/CPU0:R2#show route isis Thu Sep 10 00:42:56.497 UTC i L2 1.1.1.1/32 [115/10] via 10.1.2.1, 00:11:38, GigabitEthernet0/0/0/0 i L2 3.3.3.3/32 [115/10] via 10.2.3.3, 00:02:59, GigabitEthernet0/0/0/1 RP/0/RP0/CPU0:R2#show isis Thu Sep 10 00:42:56.679 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: 7284 Respawn count: 2 Started: Thu 2026 Sep 10 00:31:03.022 UTC Null0 ready: Thu 2026 Sep 10 00:31:03.818 UTC Protocol shutdown: No System memory state: Normal Last change: never Memory state: Normal Last change: never Last/Initial memory usage/limit: 1595791/2147483648 0% Memory state monitoring interval: 60 s Memory usage/limit: 14200813/2147483648 0% Memory usage specifics (count/bytes): Nodes: 3/1224 LSPs: 4/1674 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 00:31:04.797 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 00:42:56.803 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 00:42:56.908 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: 00:42:51 (5.00 sec ago), 1497 octets Last IIH Sent: 00:42:48 (8.41 sec ago), 1497 octets Sending next P2P IIH in: 477 ms IPv4 BFD: Disabled IPv6 BFD: Disabled Level-2 Adjacency Count: 1 Adjacency Flaps: 0 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: 8 LSPs in the next 0 ms LSP Rexmit Queue Size: 0 Adjacency Up: 00:31:14.284 Received CSNP complete: 00:31:15.378 LSP Pacing Start: 00:31:15.284 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: 00:42:56 (0.30 sec ago), 1497 octets Last IIH Sent: 00:42:51 (5.84 sec ago), 1497 octets Sending next P2P IIH in: 3 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: 5254.0070.3d04 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: 8 LSPs in the next 0 ms LSP Rexmit Queue Size: 0 Adjacency Up: 00:39:55.487 Received CSNP complete: 00:39:55.795 LSP Pacing Start: 00:39:55.796 LSP fast flooding: Disabled PME Link Delays and Loss: - RP/0/RP0/CPU0:R2#show isis interface brief Thu Sep 10 00:42:57.034 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 00:42:57.139 UTC IS-IS 1 neighbors: System Id Interface SNPA State Holdtime Type IETF-NSF R1 Gi0/0/0/0 *PtoP* Up 24 L2 Capable R3 Gi0/0/0/1 *PtoP* Up 29 L2 Capable Total neighbor count: 2 RP/0/RP0/CPU0:R2#show isis neighbors detail Thu Sep 10 00:42:57.383 UTC IS-IS 1 neighbors: System Id Interface SNPA State Holdtime Type IETF-NSF R1 Gi0/0/0/0 *PtoP* Up 24 L2 Capable Area Address(es): 49.0001 IPv4 Address(es): 10.1.2.1* Topologies: 'IPv4 Unicast' Uptime: 00:11:43 R3 Gi0/0/0/1 *PtoP* Up 29 L2 Capable Area Address(es): 49.0001 IPv4 Address(es): 10.2.3.3* Topologies: 'IPv4 Unicast' Uptime: 00:03:01 Total neighbor count: 2 RP/0/RP0/CPU0:R2#show isis database Thu Sep 10 00:42:57.512 UTC IS-IS 1 (Level-2) Link State Database LSPID LSP Seq Num LSP Checksum LSP Holdtime/Rcvd ATT/P/OL R1.00-00 0x00000022 0xf408 1031 /1200 0/0/0 R2.00-00 * 0x00000022 0xa7a8 1053 /* 0/0/0 R2.00-02 * 0x00000013 0x2d0d 0 (1053)/* 0/0/0 R3.00-00 0x00000023 0x4d56 1018 /1199 0/0/0 Total Level-2 LSP count: 4 Local Level-2 LSP count: 2 RP/0/RP0/CPU0:R2#show isis database detail Thu Sep 10 00:42:57.646 UTC IS-IS 1 (Level-2) Link State Database LSPID LSP Seq Num LSP Checksum LSP Holdtime/Rcvd ATT/P/OL R1.00-00 0x00000022 0xf408 1031 /1200 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 * 0x00000022 0xa7a8 1053 /* 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 R2.00-02 * 0x00000013 0x2d0d 0 (1053)/* 0/0/0 Purge Originator: 0020.0200.2002 R2 Hostname: R2 R3.00-00 0x00000023 0x4d56 1018 /1199 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: 4 Local Level-2 LSP count: 2 RP/0/RP0/CPU0:R2#show isis topology Thu Sep 10 00:42:57.769 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 00:42:57.941 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 23 00:11:43 Yes None None R3 Gi0/0/0/1 *PtoP* Up 28 00:03:02 Yes None None Total adjacency count: 2 RP/0/RP0/CPU0:R2#show isis adjacency-log Thu Sep 10 00:42:58.096 UTC IS-IS 1 Level 2 Adjacency Log Capacity: 100, Size: 7 When System Interface State Details --- Thu Sep 10 2026 --- 00:31:13.677 R1 Gi0/0/0/0 d -> i 00:31:14.284 R1 Gi0/0/0/0 i -> u New adjacency IPv4 Unicast Up 00:31:14.332 R3 Gi0/0/0/1 d -> i 00:31:14.939 R3 Gi0/0/0/1 i -> u New adjacency IPv4 Unicast Up 00:37:22.430 R3 Gi0/0/0/1 u -> d Holdtime expired IPv4 Unicast Down 00:39:54.879 R3 Gi0/0/0/1 d -> i 00:39:55.488 R3 Gi0/0/0/1 i -> u New adjacency IPv4 Unicast Up RP/0/RP0/CPU0:R2#show isis spf-log Thu Sep 10 00:42:58.213 UTC IS-IS 1 Level 2 IPv4 Unicast Route Calculation Log Capacity: 210, Size: 9 Time Total Trig. Timestamp Type (ms) Nodes Count First Trigger LSP Triggers ------------ ----- ----- ----- ----- -------------------- ---------------------- --- Thu Sep 10 2026 --- 00:31:16.812 FSPF 0 3 22 R1.00-00 CONFIG NEWNODE NEWLSP OVLSET LINKGOOD PREFIXGOOD AREAADDR IPADDR 00:31:17.799 FSPF 1 3 2 R1.00-00 LINKGOOD 00:31:18.960 FSPF 0 3 1 R2.00-00 OVLCLR 00:37:22.534 FSPF 1 3 2 R2.00-02 DELADJ LINKBAD 00:38:37.166 FSPF 0 3 6 R3.00-00 DELNODE LSPEXPIRY LINKBAD PREFIXBAD AREAADDR IPADDR 00:39:55.589 FSPF 0 3 1 R2.00-02 LINKGOOD 00:39:56.847 FSPF 2 3 6 R3.00-00 NEWNODE NEWLSP LINKGOOD PREFIXGOOD AREAADDR IPADDR 00:40:27.196 FSPF 0 3 4 R2.00-00 LSPEXPIRY PREFIXBAD 00:40:30.779 FSPF 0 3 3 R2.00-00 LSPEXPIRY LINKGOOD LINKBAD RP/0/RP0/CPU0:R2#show isis lsp-log Thu Sep 10 00:42:58.356 UTC IS-IS 1 Level 2 LSP Generation Log Capacity: 50, Size: 8 When Count Interface Triggers --- Thu Sep 10 2026 --- 00:31:04.773 1 CONFIG 00:31:06.922 1 Gi0/0/0/0 MSD 00:31:14.990 2 Gi0/0/0/1 NEWADJ 00:31:18.909 1 LSPDBOL 00:37:22.484 2 Gi0/0/0/1 DELADJ BESTADJ 00:39:55.539 1 Gi0/0/0/1 NEWADJ 00:40:27.096 1 IPDOWN 00:40:30.728 1 CONFIG RP/0/RP0/CPU0:R2#show isis statistics Thu Sep 10 00:42:58.507 UTC IS-IS 1 Packet and Event Statistics Dropped Dropped Total PDUs Sent Received On Input By Update Hello: 170 135 0 - CSNP: 3 3 - 0 PSNP: 23 77 0 0 LSP: 126 27 0 0 LSP Retransmissions: 25 LSP Checksum Errors: 0 Initiated LSP Purges: 3 Initiated Own LSP Purges: 2 Last Own Purged LSP: R2.00-02 (L2) Last Occurrence: Thu 2026 Sep 10 00:40:30.728 UTC Initiated Other LSP Purges: 1 Last Other Purged LSP: R3.00-00 (L2) Last Occurrence: Thu 2026 Sep 10 00:38:37.115 UTC IS-IS Update Queue: 0/3500 Total Traffic: 107 High Water Mark: 5 HWM Set: Thu 2026 Sep 10 00:31:14.291 UTC Total Drops: 0 IS-IS Input Queue: 0/4200 Total Traffic: 242 High Water Mark: 5 Total Drops: 0 Level-2 LSPs sourced (new/refresh): 21/30 Route Calculations IPv4 Unicast Total: 9 Full SPF Calculations: 9 Periodic: 0 Partial Route Calc: 0 Next Hop Calculations: 0 RP/0/RP0/CPU0:R2#show cef Thu Sep 10 00:42:58.639 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