RP/0/RP0/CPU0:R2#show version Tue Sep 8 14:18:14.304 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 10 minutes XRd Control Plane Container RP/0/RP0/CPU0:R2#show interface description Tue Sep 8 14:18:14.504 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 Tue Sep 8 14:18:14.791 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 10.1.2.1, 00:07:34, GigabitEthernet0/0/0/0 L 2.2.2.2/32 is directly connected, 00:08:10, Loopback0 i L2 3.3.3.3/32 [115/10] via 10.2.3.3, 00:07:27, GigabitEthernet0/0/0/1 i L2 4.4.4.4/32 [115/20] via 10.2.3.3, 00:07:25, GigabitEthernet0/0/0/1 C 10.1.2.0/24 is directly connected, 00:08:05, GigabitEthernet0/0/0/0 L 10.1.2.2/32 is directly connected, 00:08:05, GigabitEthernet0/0/0/0 C 10.2.3.0/24 is directly connected, 00:08:05, GigabitEthernet0/0/0/1 L 10.2.3.2/32 is directly connected, 00:08:05, GigabitEthernet0/0/0/1 i L2 10.3.4.0/24 [115/20] via 10.2.3.3, 00:07:27, GigabitEthernet0/0/0/1 RP/0/RP0/CPU0:R2#show route isis Tue Sep 8 14:18:15.107 UTC i L1 1.1.1.1/32 [115/10] via 10.1.2.1, 00:07:34, GigabitEthernet0/0/0/0 i L2 3.3.3.3/32 [115/10] via 10.2.3.3, 00:07:27, GigabitEthernet0/0/0/1 i L2 4.4.4.4/32 [115/20] via 10.2.3.3, 00:07:26, GigabitEthernet0/0/0/1 i L2 10.3.4.0/24 [115/20] via 10.2.3.3, 00:07:27, GigabitEthernet0/0/0/1 RP/0/RP0/CPU0:R2#show isis Tue Sep 8 14:18:15.299 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: 4185 Respawn count: 1 Started: Tue 2026 Sep 08 14:09:54.098 UTC Null0 ready: Tue 2026 Sep 08 14:09:55.592 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: 15360165/2147483648 0% Memory usage specifics (count/bytes): Nodes: 4/1632 LSPs: 4/1683 Links: 4/4896 Prefixes: 14/4816 Nets: 8/5120 Paths: 12/1152 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 08 14:09:56.500 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 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 Tue Sep 8 14:18:15.503 UTC IS-IS 1 hostnames Level System ID Dynamic Hostname 1 0010.0100.1001 R1 1,2 * 0020.0200.2002 R2 2 0030.0300.3003 R3 RP/0/RP0/CPU0:R2#show isis interface Tue Sep 8 14:18:15.690 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: Enabled Prefix Advertisement: Enabled Bandwidth: 1000000 RSI SRLG: Not Registered Circuit Type: level-1-2 Media Type: P2P Circuit Number: 0 Extended Circuit Number: 3 Last IIH Received: 14:18:14 (0.75 sec ago), 1497 octets Last IIH Sent: 14:18:13 (1.75 sec ago), 1497 octets Sending next P2P IIH in: 7 s IPv4 BFD: Disabled IPv6 BFD: Disabled Level-1 Adjacency Count: 1 Adjacency Flaps: 0 LSP Pacing Interval: 33 ms PSNP Entry Queue Size: 0 Hello Interval: 10 s Hello Multiplier: 3 Level-2 Adjacency Count: 0 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: 5254.0087.76cf 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: 14:10:36.600 Received CSNP complete: 14:10:36.907 LSP Pacing Start: 14:10:36.907 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-1-2 Media Type: P2P Circuit Number: 0 Extended Circuit Number: 4 Last IIH Received: 14:18:10 (4.87 sec ago), 1497 octets Last IIH Sent: 14:18:09 (5.85 sec ago), 1497 octets Sending next P2P IIH in: 3 s IPv4 BFD: Disabled IPv6 BFD: Disabled Level-1 Adjacency Count: 0 Adjacency Flaps: 0 LSP Pacing Interval: 33 ms PSNP Entry Queue Size: 0 Hello Interval: 10 s Hello Multiplier: 3 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: 5254.0015.5886 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: 14:10:25.778 Received CSNP complete: 14:10:26.088 LSP Pacing Start: 14:10:26.088 LSP fast flooding: Disabled PME Link Delays and Loss: - RP/0/RP0/CPU0:R2#show isis interface brief Tue Sep 8 14:18:15.842 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 0 1/1 1/1 Up 1497 - - Gi0/0/0/1 Yes 0 1 1/1 1/1 Up 1497 - - RP/0/RP0/CPU0:R2#show isis neighbors Tue Sep 8 14:18:16.010 UTC IS-IS 1 neighbors: System Id Interface SNPA State Holdtime Type IETF-NSF R1 Gi0/0/0/0 *PtoP* Up 28 L1 Capable R3 Gi0/0/0/1 *PtoP* Up 24 L2 Capable Total neighbor count: 2 RP/0/RP0/CPU0:R2#show isis neighbors detail Tue Sep 8 14:18:16.203 UTC IS-IS 1 neighbors: System Id Interface SNPA State Holdtime Type IETF-NSF R1 Gi0/0/0/0 *PtoP* Up 28 L1 Capable Area Address(es): 49.0001 IPv4 Address(es): 10.1.2.1* Topologies: 'IPv4 Unicast' Uptime: 00:07:39 R3 Gi0/0/0/1 *PtoP* Up 24 L2 Capable Area Address(es): 49.0002 IPv4 Address(es): 10.2.3.3* Topologies: 'IPv4 Unicast' Uptime: 00:07:50 Total neighbor count: 2 RP/0/RP0/CPU0:R2#show isis database Tue Sep 8 14:18:16.490 UTC IS-IS 1 (Level-1) Link State Database LSPID LSP Seq Num LSP Checksum LSP Holdtime/Rcvd ATT/P/OL R1.00-00 0x00000005 0x2dee 743 /1200 0/0/0 R2.00-00 * 0x00000009 0xb6a7 1084 /* 1/0/0 Total Level-1 LSP count: 2 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 R2.00-00 * 0x0000000a 0x5530 1084 /* 0/0/0 R3.00-00 0x00000008 0xf577 752 /1200 0/0/0 Total Level-2 LSP count: 2 Local Level-2 LSP count: 1 RP/0/RP0/CPU0:R2#show isis database detail Tue Sep 8 14:18:16.704 UTC IS-IS 1 (Level-1) Link State Database LSPID LSP Seq Num LSP Checksum LSP Holdtime/Rcvd ATT/P/OL R1.00-00 0x00000005 0x2dee 742 /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 * 0x00000009 0xb6a7 1084 /* 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 10.1.2.0/24 Metric: 10 IP 10.2.3.0/24 Metric: 10 IS R1.00 Total Level-1 LSP count: 2 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 R2.00-00 * 0x0000000a 0x5530 1084 /* 0/0/0 Area Address: 49.0001 LSP MTU: 1492 NLPID: 0xcc IP Address: 2.2.2.2 Hostname: R2 Metric: 10 IP 1.1.1.1/32 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 R3.00 R3.00-00 0x00000008 0xf577 752 /1200 0/0/0 Area Address: 49.0002 LSP MTU: 1492 NLPID: 0xcc IP Address: 3.3.3.3 Hostname: R3 Metric: 0 IP 3.3.3.3/32 Metric: 10 IP 4.4.4.4/32 Metric: 10 IP 10.2.3.0/24 Metric: 10 IP 10.3.4.0/24 Metric: 10 IS R2.00 Total Level-2 LSP count: 2 Local Level-2 LSP count: 1 RP/0/RP0/CPU0:R2#show isis topology Tue Sep 8 14:18:16.907 UTC IS-IS 1 paths to IPv4 Unicast (Level-1) routers System Id Metric Next-Hop Interface SNPA R1 10 R1 Gi0/0/0/0 *PtoP* R2 -- IS-IS 1 paths to IPv4 Unicast (Level-2) routers System Id Metric Next-Hop Interface SNPA R2 -- R3 10 R3 Gi0/0/0/1 *PtoP* RP/0/RP0/CPU0:R2#show isis adjacency Tue Sep 8 14:18:17.056 UTC IS-IS 1 Level-1 adjacencies: System Id Interface SNPA State Hold Changed NSF IPv4 IPv6 BFD BFD R1 Gi0/0/0/0 *PtoP* Up 27 00:07:40 Yes None None Total adjacency count: 1 IS-IS 1 Level-2 adjacencies: System Id Interface SNPA State Hold Changed NSF IPv4 IPv6 BFD BFD R3 Gi0/0/0/1 *PtoP* Up 23 00:07:51 Yes None None Total adjacency count: 1 RP/0/RP0/CPU0:R2#show isis adjacency detail Tue Sep 8 14:18:17.318 UTC IS-IS 1 Level-1 adjacencies: System Id Interface SNPA State Hold Changed NSF IPv4 IPv6 BFD BFD R1 Gi0/0/0/0 *PtoP* Up 27 00:07:40 Yes None None Area Address: 49.0001 Neighbor IPv4 Address: 10.1.2.1* Topology: IPv4 Unicast BFD Status: Neighbor Useable (BFD Not Configured) Adjacency Flaps: 0 Total adjacency count: 1 IS-IS 1 Level-2 adjacencies: System Id Interface SNPA State Hold Changed NSF IPv4 IPv6 BFD BFD R3 Gi0/0/0/1 *PtoP* Up 23 00:07:51 Yes None None Area Address: 49.0002 Neighbor IPv4 Address: 10.2.3.3* Topology: IPv4 Unicast BFD Status: Neighbor Useable (BFD Not Configured) Adjacency Flaps: 0 Total adjacency count: 1 RP/0/RP0/CPU0:R2#show isis spf-log Tue Sep 8 14:18:17.553 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 ------------ ----- ----- ----- ----- -------------------- ---------------------- --- Tue Sep 8 2026 --- 14:10:06.601 FSPF 0 1 7 R2.00-00 CONFIG NEWNODE NEWLSP OVLSET PREFIXGOOD AREAADDR IPADDR 14:10:08.790 FSPF 0 1 1 R2.00-00 OVLCLR 14:10:10.361 PRC 0 1 1 R2.00-00 PREFIXGOOD 14:10:37.959 FSPF 0 2 5 R1.00-00 NEWNODE NEWLSP PREFIXGOOD AREAADDR IPADDR 14:10:39.836 FSPF 0 2 1 R1.00-00 LINKGOOD 14:10:40.406 FSPF 3 2 1 R2.00-00 LINKGOOD 14:10:47.832 PRC 0 2 1 R2.00-00 ATTSET 14:12:50.089 FSPF 0 2 1 CONFIG 14:12:50.890 FSPF 0 2 1 CONFIG 14:12:52.101 NHC 0 2 1 R2.00-00 AREAADDR 14:16:21.055 NHC 0 2 1 R2.00-00 AREAADDR IS-IS 1 Level 2 IPv4 Unicast Route Calculation Log Capacity: 210, Size: 12 Time Total Trig. Timestamp Type (ms) Nodes Count First Trigger LSP Triggers ------------ ----- ----- ----- ----- -------------------- ---------------------- --- Tue Sep 8 2026 --- 14:10:06.692 FSPF 0 1 7 R2.00-00 CONFIG NEWNODE NEWLSP OVLSET PREFIXGOOD AREAADDR IPADDR 14:10:08.789 FSPF 0 1 1 R2.00-00 OVLCLR 14:10:10.361 PRC 0 1 1 R2.00-00 PREFIXGOOD 14:10:27.136 FSPF 0 2 5 R3.00-00 NEWNODE NEWLSP PREFIXGOOD AREAADDR IPADDR 14:10:39.835 FSPF 0 2 1 R3.00-00 LINKGOOD 14:10:40.511 PRC 0 2 1 R2.00-00 PREFIXGOOD 14:10:47.729 FSPF 2 2 1 R2.00-00 LINKGOOD 14:10:49.146 PRC 2 2 1 R3.00-00 PREFIXGOOD 14:12:50.089 FSPF 0 2 1 CONFIG 14:12:50.890 FSPF 0 2 1 CONFIG 14:12:52.203 NHC 0 2 1 R2.00-00 AREAADDR 14:16:21.156 NHC 0 2 1 R2.00-00 AREAADDR RP/0/RP0/CPU0:R2#show isis lsp-log Tue Sep 8 14:18:17.747 UTC IS-IS 1 Level 1 LSP Generation Log Capacity: 50, Size: 9 When Count Interface Triggers --- Tue Sep 8 2026 --- 14:09:56.760 1 CONFIG 14:09:58.913 1 CONFIG 14:10:04.590 1 Lo0 IPUP 14:10:08.709 1 LSPDBOL 14:10:10.310 2 Gi0/0/0/1 IPUP MSD 14:10:40.355 1 Gi0/0/0/0 SABIT 14:10:47.782 1 ATTACHFLAG 14:12:52.050 2 CONFIG 14:16:21.004 1 CONFIG IS-IS 1 Level 2 LSP Generation Log Capacity: 50, Size: 9 When Count Interface Triggers --- Tue Sep 8 2026 --- 14:09:56.760 1 CONFIG 14:09:58.913 1 CONFIG 14:10:04.590 1 Lo0 IPUP 14:10:08.709 1 LSPDBOL 14:10:10.310 2 Gi0/0/0/1 IPUP MSD 14:10:40.460 1 IPIA 14:10:47.678 1 Gi0/0/0/1 SABIT 14:12:52.152 1 AREASET 14:16:21.106 1 AREASET RP/0/RP0/CPU0:R2#show isis statistics Tue Sep 8 14:18:17.922 UTC IS-IS 1 Packet and Event Statistics Dropped Dropped Total PDUs Sent Received On Input By Update Hello: 114 112 0 - CSNP: 2 2 - 0 PSNP: 6 10 0 0 LSP: 10 5 0 0 LSP Retransmissions: 0 LSP Checksum Errors: 0 IS-IS Update Queue: 0/3500 Total Traffic: 17 High Water Mark: 2 HWM Set: Tue 2026 Sep 08 14:10:39.784 UTC Total Drops: 0 IS-IS Input Queue: 0/4200 Total Traffic: 129 High Water Mark: 2 Total Drops: 0 Level-1 LSPs sourced (new/refresh): 11/0 Route Calculations IPv4 Unicast Total: 11 Full SPF Calculations: 7 Periodic: 0 Partial Route Calc: 2 Next Hop Calculations: 2 Level-2 LSPs sourced (new/refresh): 11/0 Route Calculations IPv4 Unicast Total: 12 Full SPF Calculations: 7 Periodic: 0 Partial Route Calc: 3 Next Hop Calculations: 2 RP/0/RP0/CPU0:R2#show cef Tue Sep 8 14:18:18.100 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 4.4.4.4/32 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 10.3.4.0/24 10.2.3.3/32 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