RP/0/RP0/CPU0:R4#show version Wed Sep 9 06:54:28.554 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 R4 uptime is 16 minutes XRd Control Plane Container RP/0/RP0/CPU0:R4#show interface description Wed Sep 9 06:54:28.675 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:R4#show route Wed Sep 9 06:54:28.881 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 10.1.0.1, 00:02:45, GigabitEthernet0/0/0/0 i L1 2.2.2.2/32 [115/10] via 10.1.0.2, 00:02:45, GigabitEthernet0/0/0/0 i L1 3.3.3.3/32 [115/10] via 10.1.0.3, 00:02:45, GigabitEthernet0/0/0/0 L 4.4.4.4/32 is directly connected, 00:14:09, Loopback0 C 10.1.0.0/24 is directly connected, 00:14:03, GigabitEthernet0/0/0/0 L 10.1.0.4/32 is directly connected, 00:14:03, GigabitEthernet0/0/0/0 RP/0/RP0/CPU0:R4#show route isis Wed Sep 9 06:54:29.038 UTC i L1 1.1.1.1/32 [115/10] via 10.1.0.1, 00:02:45, GigabitEthernet0/0/0/0 i L1 2.2.2.2/32 [115/10] via 10.1.0.2, 00:02:45, GigabitEthernet0/0/0/0 i L1 3.3.3.3/32 [115/10] via 10.1.0.3, 00:02:45, GigabitEthernet0/0/0/0 RP/0/RP0/CPU0:R4#show isis Wed Sep 9 06:54:29.222 UTC IS-IS Router: 1 System Id: 0040.0400.4004 Hostname: R4 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: 4397 Respawn count: 1 Started: Wed 2026 Sep 09 06:40:08.972 UTC Null0 ready: Wed 2026 Sep 09 06:40:10.183 UTC Protocol shutdown: No System memory state: Normal Last change: never Memory state: Normal Last change: never Last/Initial memory usage/limit: 1596892/2147483648 0% Memory state monitoring interval: 60 s Memory usage/limit: 15434970/2147483648 0% Memory usage specifics (count/bytes): Nodes: 10/4080 LSPs: 10/4179 Links: 16/19584 Prefixes: 28/9632 Nets: 5/3440 Paths: 18/1728 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 06:40:11.190 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) RP/0/RP0/CPU0:R4#show isis hostname Wed Sep 9 06:54:29.366 UTC IS-IS 1 hostnames Level System ID Dynamic Hostname 1,2 0010.0100.1001 R1 1,2 0020.0200.2002 R2 1,2 0030.0300.3003 R3 1,2 * 0040.0400.4004 R4 RP/0/RP0/CPU0:R4#show isis interface Wed Sep 9 06:54:29.487 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: 4.4.4.4/32 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: LAN Circuit Number: 1 Last IIH Received: 06:54:29 (0.20 sec ago), 1497 octets Last PDU Rejected: 06:40:26 (00:14:02 ago), 99 octets, L1 CSNP, Wrong Adjacency State Last IIH Sent: 06:54:22 (6.84 sec ago), 1497 octets IPv4 BFD: Disabled IPv6 BFD: Disabled Level-1 Adjacency Count: 3 Adjacency Flaps: 0 LAN ID: R3.01 Priority (Local/DIS): 64/100 Next LAN IIH in: 2 s LSP Pacing Interval: 33 ms PSNP Entry Queue Size: 0 Hello Interval: 10 s Hello Multiplier: 3 Level-2 Adjacency Count: 3 Adjacency Flaps: 0 LAN ID: R3.01 Priority (Local/DIS): 64/100 Next LAN IIH in: 235 ms 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: 5254.0089.cc01 Layer-2 Multicast: All Level-1 ISs: Listening All Level-2 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: 10.1.0.4 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:R4#show isis interface brief Wed Sep 9 06:54:29.623 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 3 3 1/1 1/1 Up 1497 64 64 RP/0/RP0/CPU0:R4#show isis neighbors Wed Sep 9 06:54:29.750 UTC IS-IS 1 neighbors: System Id Interface SNPA State Holdtime Type IETF-NSF R1 Gi0/0/0/0 5254.00a3.a6fa Up 29 L1L2 Capable R2 Gi0/0/0/0 5254.0075.d9dc Up 25 L1L2 Capable R3 Gi0/0/0/0 5254.003a.d413 Up 9 L1L2 Capable Total neighbor count: 3 RP/0/RP0/CPU0:R4#show isis neighbors detail Wed Sep 9 06:54:30.018 UTC IS-IS 1 neighbors: System Id Interface SNPA State Holdtime Type IETF-NSF R1 Gi0/0/0/0 5254.00a3.a6fa Up 29 L1L2 Capable Area Address(es): 49.0001 IPv4 Address(es): 10.1.0.1* Topologies: 'IPv4 Unicast' Uptime: 00:14:03 R2 Gi0/0/0/0 5254.0075.d9dc Up 25 L1L2 Capable Area Address(es): 49.0001 IPv4 Address(es): 10.1.0.2* Topologies: 'IPv4 Unicast' Uptime: 00:14:03 R3 Gi0/0/0/0 5254.003a.d413 Up 8 L1L2 Capable Area Address(es): 49.0001 IPv4 Address(es): 10.1.0.3* Topologies: 'IPv4 Unicast' Uptime: 00:14:03 Total neighbor count: 3 RP/0/RP0/CPU0:R4#show isis database Wed Sep 9 06:54:30.171 UTC IS-IS 1 (Level-1) Link State Database LSPID LSP Seq Num LSP Checksum LSP Holdtime/Rcvd ATT/P/OL R1.00-00 0x00000007 0x24d2 1032 /1200 0/0/0 R2.00-00 0x00000008 0xa228 1032 /1200 0/0/0 R3.00-00 0x00000007 0x257b 1031 /1200 0/0/0 R3.01-00 0x00000001 0x60a9 1031 /1200 0/0/0 R4.00-00 * 0x00000008 0xa3d0 1032 /* 0/0/0 Total Level-1 LSP count: 5 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 R1.00-00 0x0000000d 0xde27 1033 /1200 0/0/0 R2.00-00 0x0000000e 0x627b 1033 /1200 0/0/0 R3.00-00 0x0000000b 0xedcb 1032 /1200 0/0/0 R3.01-00 0x00000001 0x60a9 1031 /1199 0/0/0 R4.00-00 * 0x0000000c 0x7120 1033 /* 0/0/0 Total Level-2 LSP count: 5 Local Level-2 LSP count: 1 RP/0/RP0/CPU0:R4#show isis database detail Wed Sep 9 06:54:30.322 UTC IS-IS 1 (Level-1) Link State Database LSPID LSP Seq Num LSP Checksum LSP Holdtime/Rcvd ATT/P/OL R1.00-00 0x00000007 0x24d2 1032 /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 10.1.0.0/24 Metric: 10 IS R3.01 R2.00-00 0x00000008 0xa228 1032 /1200 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 10.1.0.0/24 Metric: 10 IS R3.01 R3.00-00 0x00000007 0x257b 1031 /1200 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 10.1.0.0/24 Metric: 10 IS R3.01 R3.01-00 0x00000001 0x60a9 1031 /1200 0/0/0 Metric: 0 IS R4.00 Metric: 0 IS R2.00 Metric: 0 IS R1.00 Metric: 0 IS R3.00 R4.00-00 * 0x00000008 0xa3d0 1032 /* 0/0/0 Area Address: 49.0001 LSP MTU: 1492 NLPID: 0xcc IP Address: 4.4.4.4 Hostname: R4 Metric: 0 IP 4.4.4.4/32 Metric: 10 IP 10.1.0.0/24 Metric: 10 IS R3.01 Total Level-1 LSP count: 5 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 R1.00-00 0x0000000d 0xde27 1033 /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 2.2.2.2/32 Metric: 10 IP 3.3.3.3/32 Metric: 10 IP 4.4.4.4/32 Metric: 10 IP 10.1.0.0/24 Metric: 10 IS R3.01 R2.00-00 0x0000000e 0x627b 1033 /1200 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 3.3.3.3/32 Metric: 10 IP 4.4.4.4/32 Metric: 10 IP 10.1.0.0/24 Metric: 10 IS R3.01 R3.00-00 0x0000000b 0xedcb 1032 /1200 0/0/0 Area Address: 49.0001 LSP MTU: 1492 NLPID: 0xcc IP Address: 3.3.3.3 Hostname: R3 Metric: 10 IP 1.1.1.1/32 Metric: 10 IP 2.2.2.2/32 Metric: 0 IP 3.3.3.3/32 Metric: 10 IP 4.4.4.4/32 Metric: 10 IP 10.1.0.0/24 Metric: 10 IS R3.01 R3.01-00 0x00000001 0x60a9 1031 /1199 0/0/0 Metric: 0 IS R4.00 Metric: 0 IS R2.00 Metric: 0 IS R1.00 Metric: 0 IS R3.00 R4.00-00 * 0x0000000c 0x7120 1033 /* 0/0/0 Area Address: 49.0001 LSP MTU: 1492 NLPID: 0xcc IP Address: 4.4.4.4 Hostname: R4 Metric: 10 IP 1.1.1.1/32 Metric: 10 IP 2.2.2.2/32 Metric: 10 IP 3.3.3.3/32 Metric: 0 IP 4.4.4.4/32 Metric: 10 IP 10.1.0.0/24 Metric: 10 IS R3.01 Total Level-2 LSP count: 5 Local Level-2 LSP count: 1 RP/0/RP0/CPU0:R4#show isis topology Wed Sep 9 06:54:30.446 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 5254.00a3.a6fa R2 10 R2 Gi0/0/0/0 5254.0075.d9dc R3 10 R3 Gi0/0/0/0 5254.003a.d413 R4 -- IS-IS 1 paths to IPv4 Unicast (Level-2) routers System Id Metric Next-Hop Interface SNPA R1 10 R1 Gi0/0/0/0 5254.00a3.a6fa R2 10 R2 Gi0/0/0/0 5254.0075.d9dc R3 10 R3 Gi0/0/0/0 5254.003a.d413 R4 -- RP/0/RP0/CPU0:R4#show isis adjacency Wed Sep 9 06:54:30.593 UTC IS-IS 1 Level-1 adjacencies: System Id Interface SNPA State Hold Changed NSF IPv4 IPv6 BFD BFD R1 Gi0/0/0/0 5254.00a3.a6fa Up 28 00:14:03 Yes None None R2 Gi0/0/0/0 5254.0075.d9dc Up 24 00:14:03 Yes None None R3 Gi0/0/0/0 5254.003a.d413 Up 8 00:14:03 Yes None None Total adjacency count: 3 IS-IS 1 Level-2 adjacencies: System Id Interface SNPA State Hold Changed NSF IPv4 IPv6 BFD BFD R1 Gi0/0/0/0 5254.00a3.a6fa Up 20 00:14:03 Yes None None R2 Gi0/0/0/0 5254.0075.d9dc Up 28 00:14:03 Yes None None R3 Gi0/0/0/0 5254.003a.d413 Up 8 00:14:03 Yes None None Total adjacency count: 3 RP/0/RP0/CPU0:R4#show isis adjacency detail Wed Sep 9 06:54:30.764 UTC IS-IS 1 Level-1 adjacencies: System Id Interface SNPA State Hold Changed NSF IPv4 IPv6 BFD BFD R1 Gi0/0/0/0 5254.00a3.a6fa Up 28 00:14:04 Yes None None Area Address: 49.0001 Neighbor IPv4 Address: 10.1.0.1* DIS Priority: 100 Local Priority: 64 Neighbor Priority: 64 Topology: IPv4 Unicast BFD Status: Neighbor Useable (BFD Not Configured) R2 Gi0/0/0/0 5254.0075.d9dc Up 24 00:14:04 Yes None None Area Address: 49.0001 Neighbor IPv4 Address: 10.1.0.2* DIS Priority: 100 Local Priority: 64 Neighbor Priority: 64 Topology: IPv4 Unicast BFD Status: Neighbor Useable (BFD Not Configured) R3 Gi0/0/0/0 5254.003a.d413 Up 8 00:14:04 Yes None None Area Address: 49.0001 Neighbor IPv4 Address: 10.1.0.3* DIS Priority: 100 Local Priority: 64 Neighbor Priority: 100 (DIS) Topology: IPv4 Unicast BFD Status: Neighbor Useable (BFD Not Configured) Total adjacency count: 3 IS-IS 1 Level-2 adjacencies: System Id Interface SNPA State Hold Changed NSF IPv4 IPv6 BFD BFD R1 Gi0/0/0/0 5254.00a3.a6fa Up 29 00:14:04 Yes None None Area Address: 49.0001 Neighbor IPv4 Address: 10.1.0.1* DIS Priority: 100 Local Priority: 64 Neighbor Priority: 64 Topology: IPv4 Unicast BFD Status: Neighbor Useable (BFD Not Configured) R2 Gi0/0/0/0 5254.0075.d9dc Up 28 00:14:04 Yes None None Area Address: 49.0001 Neighbor IPv4 Address: 10.1.0.2* DIS Priority: 100 Local Priority: 64 Neighbor Priority: 64 Topology: IPv4 Unicast BFD Status: Neighbor Useable (BFD Not Configured) R3 Gi0/0/0/0 5254.003a.d413 Up 8 00:14:04 Yes None None Area Address: 49.0001 Neighbor IPv4 Address: 10.1.0.3* DIS Priority: 100 Local Priority: 64 Neighbor Priority: 100 (DIS) Topology: IPv4 Unicast BFD Status: Neighbor Useable (BFD Not Configured) Total adjacency count: 3 RP/0/RP0/CPU0:R4#show isis adjacency-log Wed Sep 9 06:54:31.056 UTC IS-IS 1 Level 1 Adjacency Log Capacity: 100, Size: 6 When System Interface State Details --- Wed Sep 9 2026 --- 06:40:25.869 R3 Gi0/0/0/0 d -> i 06:40:25.869 R2 Gi0/0/0/0 d -> i 06:40:25.869 R1 Gi0/0/0/0 d -> i 06:40:26.790 R3 Gi0/0/0/0 i -> u New adjacency IPv4 Unicast Up 06:40:26.791 R2 Gi0/0/0/0 i -> u New adjacency IPv4 Unicast Up 06:40:26.791 R1 Gi0/0/0/0 i -> u New adjacency IPv4 Unicast Up IS-IS 1 Level 2 Adjacency Log Capacity: 100, Size: 6 When System Interface State Details --- Wed Sep 9 2026 --- 06:40:25.869 R3 Gi0/0/0/0 d -> i 06:40:25.869 R2 Gi0/0/0/0 d -> i 06:40:25.869 R1 Gi0/0/0/0 d -> i 06:40:26.791 R3 Gi0/0/0/0 i -> u New adjacency IPv4 Unicast Up 06:40:26.791 R2 Gi0/0/0/0 i -> u New adjacency IPv4 Unicast Up 06:40:26.791 R1 Gi0/0/0/0 i -> u New adjacency IPv4 Unicast Up RP/0/RP0/CPU0:R4#show isis trace all | include ELECT Wed Sep 9 06:54:31.197 UTC Sep 9 06:40:25.868 isis/1/det 0/RP0/CPU0 t4503 isis_dis_trigger_election:964 DIS_TRIGGER_ELECTION L1 Gi0/0/0/0 0030.0300.3003 Sep 9 06:40:25.869 isis/1/det 0/RP0/CPU0 t4503 isis_dis_trigger_election:964 DIS_TRIGGER_ELECTION L2 Gi0/0/0/0 0030.0300.3003 Sep 9 06:40:25.869 isis/1/det 0/RP0/CPU0 t4503 isis_dis_trigger_election:964 DIS_TRIGGER_ELECTION L1 Gi0/0/0/0 0020.0200.2002 Sep 9 06:40:25.869 isis/1/det 0/RP0/CPU0 t4503 isis_dis_trigger_election:964 DIS_TRIGGER_ELECTION L1 Gi0/0/0/0 0010.0100.1001 Sep 9 06:40:25.869 isis/1/det 0/RP0/CPU0 t4503 isis_dis_trigger_election:964 DIS_TRIGGER_ELECTION L2 Gi0/0/0/0 0020.0200.2002 Sep 9 06:40:25.869 isis/1/det 0/RP0/CPU0 t4503 isis_dis_trigger_election:964 DIS_TRIGGER_ELECTION L2 Gi0/0/0/0 0010.0100.1001 Sep 9 06:40:26.790 isis/1/det 0/RP0/CPU0 t4503 isis_dis_trigger_election:964 DIS_TRIGGER_ELECTION L1 Gi0/0/0/0 0030.0300.3003 Sep 9 06:40:26.790 isis/1/det 0/RP0/CPU0 t4503 isis_dis_trigger_election:964 DIS_TRIGGER_ELECTION L2 Gi0/0/0/0 0030.0300.3003 Sep 9 06:40:26.791 isis/1/det 0/RP0/CPU0 t4503 isis_dis_trigger_election:964 DIS_TRIGGER_ELECTION L1 Gi0/0/0/0 0020.0200.2002 Sep 9 06:40:26.791 isis/1/det 0/RP0/CPU0 t4503 isis_dis_trigger_election:964 DIS_TRIGGER_ELECTION L2 Gi0/0/0/0 0020.0200.2002 Sep 9 06:40:26.791 isis/1/det 0/RP0/CPU0 t4503 isis_dis_trigger_election:964 DIS_TRIGGER_ELECTION L1 Gi0/0/0/0 0010.0100.1001 Sep 9 06:40:26.791 isis/1/det 0/RP0/CPU0 t4503 isis_dis_trigger_election:964 DIS_TRIGGER_ELECTION L2 Gi0/0/0/0 0010.0100.1001 Sep 9 06:40:28.773 isis/1/det 0/RP0/CPU0 t4503 isis_dis_run_election:719 DIS_RUN_ELECTION L1 Gi0/0/0/0 Sep 9 06:40:28.773 isis/1/det 0/RP0/CPU0 t4503 isis_dis_run_election:778 DIS_ELECTION_RESULT_DIS_EXISTS L1 Gi0/0/0/0 Sep 9 06:40:28.773 isis/1/det 0/RP0/CPU0 t4503 isis_dis_run_election:719 DIS_RUN_ELECTION L2 Gi0/0/0/0 Sep 9 06:40:28.773 isis/1/det 0/RP0/CPU0 t4503 isis_dis_run_election:778 DIS_ELECTION_RESULT_DIS_EXISTS L2 Gi0/0/0/0 Sep 9 06:51:42.048 isis/1/det 0/RP0/CPU0 t4503 isis_dis_trigger_election:964 DIS_TRIGGER_ELECTION L1 Gi0/0/0/0 0030.0300.3003 Sep 9 06:51:42.048 isis/1/det 0/RP0/CPU0 t4503 isis_dis_trigger_election:964 DIS_TRIGGER_ELECTION L2 Gi0/0/0/0 0030.0300.3003 Sep 9 06:51:42.058 isis/1/det 0/RP0/CPU0 t4503 isis_dis_run_election:719 DIS_RUN_ELECTION L1 Gi0/0/0/0 Sep 9 06:51:42.059 isis/1/det 0/RP0/CPU0 t4503 isis_dis_run_election:778 DIS_ELECTION_RESULT_DIS_EXISTS L1 Gi0/0/0/0 Sep 9 06:51:42.059 isis/1/det 0/RP0/CPU0 t4503 isis_dis_run_election:719 DIS_RUN_ELECTION L2 Gi0/0/0/0 Sep 9 06:51:42.059 isis/1/det 0/RP0/CPU0 t4503 isis_dis_run_election:778 DIS_ELECTION_RESULT_DIS_EXISTS L2 Gi0/0/0/0 Sep 9 06:51:43.049 isis/1/det 0/RP0/CPU0 t4503 isis_dis_trigger_election:964 DIS_TRIGGER_ELECTION L1 Gi0/0/0/0 0030.0300.3003 Sep 9 06:51:43.049 isis/1/det 0/RP0/CPU0 t4503 isis_dis_trigger_election:964 DIS_TRIGGER_ELECTION L2 Gi0/0/0/0 0030.0300.3003 Sep 9 06:51:43.059 isis/1/det 0/RP0/CPU0 t4503 isis_dis_run_election:719 DIS_RUN_ELECTION L1 Gi0/0/0/0 Sep 9 06:51:43.059 isis/1/det 0/RP0/CPU0 t4503 isis_dis_run_election:778 DIS_ELECTION_RESULT_DIS_EXISTS L1 Gi0/0/0/0 Sep 9 06:51:43.060 isis/1/det 0/RP0/CPU0 t4503 isis_dis_run_election:719 DIS_RUN_ELECTION L2 Gi0/0/0/0 Sep 9 06:51:43.060 isis/1/det 0/RP0/CPU0 t4503 isis_dis_run_election:778 DIS_ELECTION_RESULT_DIS_EXISTS L2 Gi0/0/0/0 RP/0/RP0/CPU0:R4#show isis trace all | include PSEUDO Wed Sep 9 06:54:31.434 UTC Sep 9 06:40:26.832 isis/1/spf 0/RP0/CPU0 t4619 isis_compile_pseudonode_mt_capability:9629 SPF_COMPILE_MT_CAPABILITIES_PSEUDONODE L2 0010.0100.1001.01-00 Sep 9 06:40:26.832 isis/1/spf 0/RP0/CPU0 t4619 isis_compile_pseudonode_mt_capability:9629 SPF_COMPILE_MT_CAPABILITIES_PSEUDONODE L1 0010.0100.1001.01-00 Sep 9 06:40:28.832 isis/1/spf 0/RP0/CPU0 t4619 isis_compile_pseudonode_mt_capability:9629 SPF_COMPILE_MT_CAPABILITIES_PSEUDONODE L2 0010.0100.1001.01-00 Sep 9 06:40:28.832 isis/1/spf 0/RP0/CPU0 t4619 isis_compile_pseudonode_mt_capability:9629 SPF_COMPILE_MT_CAPABILITIES_PSEUDONODE L1 0010.0100.1001.01-00 Sep 9 06:40:29.830 isis/1/spf 0/RP0/CPU0 t4619 isis_compile_pseudonode_mt_capability:9629 SPF_COMPILE_MT_CAPABILITIES_PSEUDONODE L2 0010.0100.1001.01-00 Sep 9 06:40:29.830 isis/1/spf 0/RP0/CPU0 t4619 isis_compile_pseudonode_mt_capability:9629 SPF_COMPILE_MT_CAPABILITIES_PSEUDONODE L1 0010.0100.1001.01-00 Sep 9 06:51:42.059 isis/1/spf 0/RP0/CPU0 t4619 isis_compile_pseudonode_mt_capability:9629 SPF_COMPILE_MT_CAPABILITIES_PSEUDONODE L2 0010.0100.1001.01-00 Sep 9 06:51:42.060 isis/1/spf 0/RP0/CPU0 t4619 isis_compile_pseudonode_mt_capability:9629 SPF_COMPILE_MT_CAPABILITIES_PSEUDONODE L1 0010.0100.1001.01-00 Sep 9 06:51:42.115 isis/1/spf 0/RP0/CPU0 t4619 isis_compile_pseudonode_mt_capability:9629 SPF_COMPILE_MT_CAPABILITIES_PSEUDONODE L1 0030.0300.3003.01-00 Sep 9 06:51:42.115 isis/1/spf 0/RP0/CPU0 t4619 isis_compile_pseudonode_mt_capability:9629 SPF_COMPILE_MT_CAPABILITIES_PSEUDONODE L2 0030.0300.3003.01-00 RP/0/RP0/CPU0:R4#show isis spf-log Wed Sep 9 06:54:31.759 UTC IS-IS 1 Level 1 IPv4 Unicast Route Calculation Log Capacity: 210, Size: 9 Time Total Trig. Timestamp Type (ms) Nodes Count First Trigger LSP Triggers ------------ ----- ----- ----- ----- -------------------- ---------------------- --- Wed Sep 9 2026 --- 06:40:21.371 FSPF 0 1 7 R4.00-00 CONFIG NEWNODE NEWLSP OVLSET PREFIXGOOD AREAADDR IPADDR 06:40:23.518 FSPF 0 1 1 R4.00-00 OVLCLR 06:40:26.883 FSPF 0 5 4 R1.01-00 NEWNODE NEWLSP LINKGOOD PREFIXGOOD 06:40:29.881 FSPF 0 5 1 R1.01-00 LINKGOOD 06:40:31.485 FSPF 0 5 1 R4.00-00 LINKGOOD 06:40:37.058 FSPF 2 5 18 R1.00-00 NEWNODE NEWLSP LINKGOOD PREFIXGOOD AREAADDR IPADDR 06:51:42.110 FSPF 3 5 13 R1.01-00 DIS NEWNODE DELNODE NEWLSP LSPEXPIRY LINKGOOD LINKBAD 06:51:42.315 FSPF 0 6 6 R1.00-00 NEWNODE NEWLSP LINKGOOD LINKBAD 06:51:43.161 FSPF 3 6 3 R4.00-00 LINKGOOD IS-IS 1 Level 2 IPv4 Unicast Route Calculation Log Capacity: 210, Size: 11 Time Total Trig. Timestamp Type (ms) Nodes Count First Trigger LSP Triggers ------------ ----- ----- ----- ----- -------------------- ---------------------- --- Wed Sep 9 2026 --- 06:40:21.373 FSPF 0 1 7 R4.00-00 CONFIG NEWNODE NEWLSP OVLSET PREFIXGOOD AREAADDR IPADDR 06:40:23.439 FSPF 0 1 1 R4.00-00 OVLCLR 06:40:26.882 FSPF 0 5 4 R1.01-00 NEWNODE NEWLSP LINKGOOD PREFIXGOOD 06:40:29.880 FSPF 0 5 1 R1.01-00 LINKGOOD 06:40:31.482 FSPF 2 5 19 R4.00-00 NEWNODE NEWLSP LINKGOOD PREFIXGOOD AREAADDR IPADDR 06:40:37.162 PRC 0 5 1 R4.00-00 PREFIXGOOD 06:51:42.107 FSPF 2 5 9 R1.01-00 NEWNODE DELNODE NEWLSP LSPEXPIRY LINKGOOD LINKBAD 06:51:42.311 FSPF 0 6 8 R1.00-00 NEWNODE NEWLSP LINKGOOD LINKBAD PREFIXBAD 06:51:42.713 PRC 0 6 3 R1.00-00 PREFIXBAD 06:51:43.514 FSPF 1 6 4 R4.00-00 LINKGOOD PREFIXGOOD 06:51:45.117 PRC 1 6 3 R4.00-00 PREFIXGOOD RP/0/RP0/CPU0:R4#show isis lsp-log Wed Sep 9 06:54:31.928 UTC IS-IS 1 Level 1 LSP Generation Log Capacity: 50, Size: 8 When Count Interface Triggers --- Wed Sep 9 2026 --- 06:40:11.367 1 CONFIG 06:40:13.481 1 CONFIG 06:40:19.849 1 Lo0 IPUP 06:40:23.467 1 LSPDBOL 06:40:26.867 2 Gi0/0/0/0 NEWADJ MSD 06:40:30.067 1 Gi0/0/0/0 DIS 06:51:42.109 1 Gi0/0/0/0 DIS 06:51:43.110 2 Gi0/0/0/0 DIS IS-IS 1 Level 2 LSP Generation Log Capacity: 50, Size: 11 When Count Interface Triggers --- Wed Sep 9 2026 --- 06:40:11.367 1 CONFIG 06:40:13.480 1 CONFIG 06:40:19.849 1 Lo0 IPUP 06:40:23.389 1 LSPDBOL 06:40:26.867 2 Gi0/0/0/0 NEWADJ MSD 06:40:30.068 1 Gi0/0/0/0 DIS 06:40:37.111 1 IPIA 06:51:42.110 1 Gi0/0/0/0 DIS 06:51:42.311 1 IPIA 06:51:43.110 2 Gi0/0/0/0 DIS 06:51:43.911 1 IPIA RP/0/RP0/CPU0:R4#show isis statistics Wed Sep 9 06:54:32.172 UTC IS-IS 1 Packet and Event Statistics Dropped Dropped Total PDUs Sent Received On Input By Update Hello: 203 979 0 - CSNP: 0 191 - 0 PSNP: 1 0 0 0 LSP: 11 36 0 0 LSP Retransmissions: 0 LSP Checksum Errors: 0 IS-IS Update Queue: 0/3500 Total Traffic: 227 High Water Mark: 8 HWM Set: Wed 2026 Sep 09 06:51:42.113 UTC Total Drops: 0 IS-IS Input Queue: 0/4200 Total Traffic: 1208 High Water Mark: 7 Total Drops: 0 Level-1 LSPs sourced (new/refresh): 10/0 Route Calculations IPv4 Unicast Total: 9 Full SPF Calculations: 9 Periodic: 0 Partial Route Calc: 0 Next Hop Calculations: 0 Level-2 LSPs sourced (new/refresh): 13/0 Route Calculations IPv4 Unicast Total: 11 Full SPF Calculations: 8 Periodic: 0 Partial Route Calc: 3 Next Hop Calculations: 0 RP/0/RP0/CPU0:R4#show cef Wed Sep 9 06:54:32.303 UTC Prefix Next Hop Interface ------------------- ------------------- ------------------ 0.0.0.0/0 drop default handler 0.0.0.0/32 broadcast 1.1.1.1/32 10.1.0.1/32 GigabitEthernet0/0/0/0 2.2.2.2/32 10.1.0.2/32 GigabitEthernet0/0/0/0 3.3.3.3/32 10.1.0.3/32 GigabitEthernet0/0/0/0 4.4.4.4/32 receive Loopback0 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 10.1.0.1/32 GigabitEthernet0/0/0/0 10.1.0.2/32 10.1.0.2/32 GigabitEthernet0/0/0/0 10.1.0.3/32 10.1.0.3/32 GigabitEthernet0/0/0/0 10.1.0.4/32 receive GigabitEthernet0/0/0/0 10.1.0.255/32 broadcast 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