RP/0/RP0/CPU0:R3#show version Tue Oct 6 01:25:38.420 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 R3 uptime is 43 minutes XRd Control Plane Container RP/0/RP0/CPU0:R3#show interface description Tue Oct 6 01:25:38.647 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 LAN-SW (10.0.0.0/24 broadcast) Gi0/0/0/1 up up to R4 (10.0.34.0/24 p2p) RP/0/RP0/CPU0:R3#show route Tue Oct 6 01:25:38.916 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 10.0.0.1, 00:23:32, GigabitEthernet0/0/0/0 i L1 2.2.2.2/32 [115/10] via 10.0.0.2, 00:29:15, GigabitEthernet0/0/0/0 L 3.3.3.3/32 is directly connected, 00:40:44, Loopback0 i L1 4.4.4.4/32 [115/10] via 10.0.34.4, 00:29:15, GigabitEthernet0/0/0/1 i L2 5.5.5.5/32 [115/20] via 10.0.34.4, 00:28:39, GigabitEthernet0/0/0/1 C 10.0.0.0/24 is directly connected, 00:40:39, GigabitEthernet0/0/0/0 L 10.0.0.3/32 is directly connected, 00:40:39, GigabitEthernet0/0/0/0 C 10.0.34.0/24 is directly connected, 00:40:39, GigabitEthernet0/0/0/1 L 10.0.34.3/32 is directly connected, 00:40:39, GigabitEthernet0/0/0/1 i L1 10.0.45.0/24 [115/20] via 10.0.34.4, 00:29:15, GigabitEthernet0/0/0/1 RP/0/RP0/CPU0:R3#show interface Tue Oct 6 01:25:39.104 UTC Loopback0 is up, line protocol is up Interface state transitions: 1 Hardware is Loopback interface(s) Internet address is 3.3.3.3/32 MTU 1500 bytes, BW 0 Kbit reliability Unknown, txload Unknown, rxload Unknown Encapsulation Loopback, loopback not set, Last link flapped 00:40:45 Last input Unknown, output Unknown Last clearing of "show interface" counters Unknown Input/output data rate is disabled. Null0 is up, line protocol is up Interface state transitions: 1 Hardware is Null interface Internet address is Unknown MTU 1500 bytes, BW 0 Kbit reliability 255/255, txload Unknown, rxload Unknown Encapsulation Null, loopback not set, Last link flapped 00:42:27 Last input never, output never Last clearing of "show interface" counters never 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 0 packets input, 0 bytes, 0 total input drops 0 drops for unrecognized upper-level protocol Received 0 broadcast packets, 0 multicast packets 0 packets output, 0 bytes, 0 total output drops Output 0 broadcast packets, 0 multicast packets MgmtEth0/RP0/CPU0/0 is up, line protocol is up Interface state transitions: 1 Hardware is Management Ethernet, address is 5254.0092.b797 (bia 5254.0092.b797) Description: management Internet address is 10.19.2.73/16 MTU 1514 bytes, BW 1000000 Kbit (Max: 1000000 Kbit) reliability 255/255, txload 0/255, rxload 0/255 Encapsulation ARPA, Duplex unknown, 1000Mb/s, unknown, link type is autonegotiation output flow control is off, input flow control is off Carrier delay (up) is 10 msec loopback not set, Last link flapped 00:40:39 ARP type ARPA, ARP timeout 04:00:00 Last input 00:00:00, output 00:00:00 Last clearing of "show interface" counters never 5 minute input rate 1000 bits/sec, 2 packets/sec 5 minute output rate 4000 bits/sec, 2 packets/sec 4273 packets input, 466290 bytes, 0 total input drops 0 drops for unrecognized upper-level protocol Received 7 broadcast packets, 22 multicast packets 0 runts, 0 giants, 0 throttles, 0 parity 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort 5740 packets output, 1417639 bytes, 0 total output drops Output 2 broadcast packets, 0 multicast packets 0 output errors, 0 underruns, 0 applique, 0 resets 0 output buffer failures, 0 output buffers swapped out 1 carrier transitions GigabitEthernet0/0/0/0 is up, line protocol is up Interface state transitions: 1 Hardware is GigabitEthernet, address is 5254.00fd.7064 (bia 5254.00fd.7064) Description: to LAN-SW (10.0.0.0/24 broadcast) Internet address is 10.0.0.3/24 MTU 1514 bytes, BW 1000000 Kbit (Max: 1000000 Kbit) reliability 255/255, txload 0/255, rxload 0/255 Encapsulation ARPA, Full-duplex, 1000Mb/s, unknown, link type is force-up output flow control is off, input flow control is off Carrier delay (up) is 10 msec loopback not set, Last link flapped 00:40:40 ARP type ARPA, ARP timeout 04:00:00 Last input 00:00:00, output 00:00:00 Last clearing of "show interface" counters 00:01:53 5 minute input rate 4000 bits/sec, 1 packets/sec 5 minute output rate 7000 bits/sec, 1 packets/sec 153 packets input, 71170 bytes, 0 total input drops 0 drops for unrecognized upper-level protocol Received 0 broadcast packets, 39 multicast packets 0 runts, 0 giants, 0 throttles, 0 parity 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort 218 packets output, 134190 bytes, 0 total output drops Output 0 broadcast packets, 104 multicast packets 0 output errors, 0 underruns, 0 applique, 0 resets 0 output buffer failures, 0 output buffers swapped out 0 carrier transitions GigabitEthernet0/0/0/1 is up, line protocol is up Interface state transitions: 1 Hardware is GigabitEthernet, address is 5254.005e.18d0 (bia 5254.005e.18d0) Description: to R4 (10.0.34.0/24 p2p) Internet address is 10.0.34.3/24 MTU 1514 bytes, BW 1000000 Kbit (Max: 1000000 Kbit) reliability 255/255, txload 0/255, rxload 0/255 Encapsulation ARPA, Full-duplex, 1000Mb/s, unknown, link type is force-up output flow control is off, input flow control is off Carrier delay (up) is 10 msec loopback not set, Last link flapped 00:40:40 ARP type ARPA, ARP timeout 04:00:00 Last input 00:00:00, output 00:00:03 Last clearing of "show interface" counters 00:01:53 5 minute input rate 1000 bits/sec, 1 packets/sec 5 minute output rate 1000 bits/sec, 1 packets/sec 132 packets input, 33974 bytes, 0 total input drops 0 drops for unrecognized upper-level protocol Received 0 broadcast packets, 15 multicast packets 0 runts, 0 giants, 0 throttles, 0 parity 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort 132 packets output, 32376 bytes, 0 total output drops Output 0 broadcast packets, 14 multicast packets 0 output errors, 0 underruns, 0 applique, 0 resets 0 output buffer failures, 0 output buffers swapped out 0 carrier transitions RP/0/RP0/CPU0:R3#show route summary Tue Oct 6 01:25:39.518 UTC Route Source Routes Backup Deleted Memory(bytes) connected 2 1 0 600 local 3 0 0 600 application fib_mgr 0 0 0 0 isis 1 5 3 0 1680 dagr 0 0 0 0 Total 10 4 0 2880 RP/0/RP0/CPU0:R3#show route static Tue Oct 6 01:25:39.766 UTC % No matching routes found RP/0/RP0/CPU0:R3#show cef Tue Oct 6 01:25:39.910 UTC Prefix Next Hop Interface ------------------- ------------------- ------------------ 0.0.0.0/0 drop default handler 0.0.0.0/32 broadcast 1.1.1.1/32 10.0.0.1/32 GigabitEthernet0/0/0/0 2.2.2.2/32 10.0.0.2/32 GigabitEthernet0/0/0/0 3.3.3.3/32 receive Loopback0 4.4.4.4/32 10.0.34.4/32 GigabitEthernet0/0/0/1 5.5.5.5/32 10.0.34.4/32 GigabitEthernet0/0/0/1 10.0.0.0/24 attached GigabitEthernet0/0/0/0 10.0.0.0/32 broadcast GigabitEthernet0/0/0/0 10.0.0.1/32 10.0.0.1/32 GigabitEthernet0/0/0/0 10.0.0.2/32 10.0.0.2/32 GigabitEthernet0/0/0/0 10.0.0.3/32 receive GigabitEthernet0/0/0/0 10.0.0.255/32 broadcast GigabitEthernet0/0/0/0 10.0.34.0/24 attached GigabitEthernet0/0/0/1 10.0.34.0/32 broadcast GigabitEthernet0/0/0/1 10.0.34.3/32 receive GigabitEthernet0/0/0/1 10.0.34.4/32 10.0.34.4/32 GigabitEthernet0/0/0/1 10.0.34.255/32 broadcast GigabitEthernet0/0/0/1 10.0.45.0/24 10.0.34.4/32 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 RP/0/RP0/CPU0:R3#show arp Tue Oct 6 01:25:40.217 UTC ------------------------------------------------------------------------------- 0/RP0/CPU0 ------------------------------------------------------------------------------- Address Age Hardware Addr State Type Interface 10.0.0.1 00:40:41 5254.004e.accf Dynamic ARPA GigabitEthernet0/0/0/0 10.0.0.2 00:40:41 5254.006d.5fdf Dynamic ARPA GigabitEthernet0/0/0/0 10.0.0.3 - 5254.00fd.7064 Interface ARPA GigabitEthernet0/0/0/0 10.0.34.3 - 5254.005e.18d0 Interface ARPA GigabitEthernet0/0/0/1 10.0.34.4 00:40:39 5254.0071.dc5f Dynamic ARPA GigabitEthernet0/0/0/1 RP/0/RP0/CPU0:R3#show configuration commit list Tue Oct 6 01:25:40.512 UTC SNo. Label/ID User Line Client Time Stamp ~~~~ ~~~~~~~~ ~~~~ ~~~~ ~~~~~~ ~~~~~~~~~~ 1 1000000004 cisco vty0:node0_RP0_CPU CLI Tue Oct 6 01:17:44 2026 2 1000000003 cisco vty0:node0_RP0_CPU CLI Tue Oct 6 01:12:43 2026 3 1000000002 cisco vty0:node0_RP0_CPU CLI Tue Oct 6 00:30:21 2026 4 1000000001 cisco vty0:node0_RP0_CPU CLI Tue Oct 6 00:25:21 2026 RP/0/RP0/CPU0:R3#show isis Tue Oct 6 01:25:40.660 UTC IS-IS Router: 1 System Id: 0030.0300.3003 Hostname: R3 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: 6770 Respawn count: 2 Started: Tue 2026 Oct 06 00:56:11.306 UTC Null0 ready: Tue 2026 Oct 06 00:56:11.837 UTC Protocol shutdown: No System memory state: Normal Last change: never Memory state: Normal Last change: never Last/Initial memory usage/limit: 1597852/2147483648 0% Memory state monitoring interval: 60 s Memory usage/limit: 15479802/2147483648 0% Memory usage specifics (count/bytes): Nodes: 10/4080 LSPs: 10/4184 Links: 16/19584 Prefixes: 36/31392 Nets: 9/6192 Paths: 20/1920 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 Oct 06 00:56:12.623 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 Level-2 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) GigabitEthernet0/0/0/0 is running actively (active in configuration) GigabitEthernet0/0/0/1 is running actively (active in configuration) RP/0/RP0/CPU0:R3#show isis protocol Tue Oct 6 01:25:40.808 UTC IS-IS Router: 1 System Id: 0030.0300.3003 Hostname: R3 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: 6770 Respawn count: 2 Started: Tue 2026 Oct 06 00:56:11.306 UTC Null0 ready: Tue 2026 Oct 06 00:56:11.837 UTC Protocol shutdown: No System memory state: Normal Last change: never Memory state: Normal Last change: never Last/Initial memory usage/limit: 1597852/2147483648 0% Memory state monitoring interval: 60 s Memory usage/limit: 15479802/2147483648 0% Memory usage specifics (count/bytes): Nodes: 10/4080 LSPs: 10/4184 Links: 16/19584 Prefixes: 36/31392 Nets: 9/6192 Paths: 20/1920 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 Oct 06 00:56:12.623 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 Level-2 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) GigabitEthernet0/0/0/0 is running actively (active in configuration) GigabitEthernet0/0/0/1 is running actively (active in configuration) RP/0/RP0/CPU0:R3#show isis hostname Tue Oct 6 01:25:41.017 UTC IS-IS 1 hostnames Level System ID Dynamic Hostname 1 0010.0100.1001 R1 1,2 0020.0200.2002 R2 2 0050.0500.5005 R5 1,2 * 0030.0300.3003 R3 1,2 0040.0400.4004 R4 RP/0/RP0/CPU0:R3#show isis interface Tue Oct 6 01:25:41.219 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: 3.3.3.3/32 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: 01:25:38 (2.49 sec ago), 1497 octets Last PDU Rejected: 01:02:04 (00:23:37 ago), 77 octets, L1 LSP, Wrong Adjacency State Last IIH Sent: 01:25:40 (1.20 sec ago), 1497 octets IPv4 BFD: Disabled IPv6 BFD: Disabled Level-1 Adjacency Count: 2 Adjacency Flaps: 1 LAN ID: R3.01 Priority (Local/DIS): 64/64 Next LAN IIH in: 1 s 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 LAN ID: R3.01 Priority (Local/DIS): 64/64 Next LAN IIH in: 1 s 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: 5254.00fd.7064 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: 10.0.0.3 Global Prefix: 10.0.0.0/24 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: - 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: 01:25:38 (2.49 sec ago), 1497 octets Last IIH Sent: 01:25:34 (6.80 sec ago), 1497 octets Sending next P2P IIH in: 2 s IPv4 BFD: Disabled IPv6 BFD: Disabled Level-1 Adjacency Count: 1 Adjacency Flaps: 1 LSP Pacing Interval: 33 ms PSNP Entry Queue Size: 0 Hello Interval: 10 s Hello Multiplier: 3 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: 5254.005e.18d0 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: 10.0.34.3 Global Prefix: 10.0.34.0/24 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: 00:56:18.060 Received CSNP complete: 00:56:18.369 LSP Pacing Start: 00:56:18.369 LSP fast flooding: Disabled PME Link Delays and Loss: - RP/0/RP0/CPU0:R3#show isis interface brief Tue Oct 6 01:25:41.413 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 2* 1* 1/1 1/1 Up 1497 64 64 Gi0/0/0/1 Yes 1 1 1/1 1/1 Up 1497 - - RP/0/RP0/CPU0:R3#show isis neighbors Tue Oct 6 01:25:41.573 UTC IS-IS 1 neighbors: System Id Interface SNPA State Holdtime Type IETF-NSF R1 Gi0/0/0/0 5254.004e.accf Up 23 L1 Capable R2 Gi0/0/0/0 5254.006d.5fdf Up 22 L1L2 Capable R4 Gi0/0/0/1 *PtoP* Up 27 L1L2 Capable Total neighbor count: 3 RP/0/RP0/CPU0:R3#show isis neighbors detail Tue Oct 6 01:25:41.719 UTC IS-IS 1 neighbors: System Id Interface SNPA State Holdtime Type IETF-NSF R1 Gi0/0/0/0 5254.004e.accf Up 23 L1 Capable Area Address(es): 49.0001 IPv4 Address(es): 10.0.0.1* Topologies: 'IPv4 Unicast' Uptime: 00:23:36 R2 Gi0/0/0/0 5254.006d.5fdf Up 22 L1L2 Capable Area Address(es): 49.0001 IPv4 Address(es): 10.0.0.2* Topologies: 'IPv4 Unicast' Uptime: 00:29:29 R4 Gi0/0/0/1 *PtoP* Up 27 L1L2 Capable Area Address(es): 49.0001 IPv4 Address(es): 10.0.34.4* Topologies: 'IPv4 Unicast' Uptime: 00:29:23 Total neighbor count: 3 RP/0/RP0/CPU0:R3#show isis adjacency Tue Oct 6 01:25:41.920 UTC IS-IS 1 Level-1 adjacencies: System Id Interface SNPA State Hold Changed NSF IPv4 IPv6 BFD BFD R1 Gi0/0/0/0 5254.004e.accf Up 23 00:23:36 Yes None None R2 Gi0/0/0/0 5254.006d.5fdf Up 22 00:29:29 Yes None None R4 Gi0/0/0/1 *PtoP* Up 26 00:29:23 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 R2 Gi0/0/0/0 5254.006d.5fdf Up 26 00:29:29 Yes None None R4 Gi0/0/0/1 *PtoP* Up 26 00:29:24 Yes None None Total adjacency count: 2 RP/0/RP0/CPU0:R3#show isis adjacency detail Tue Oct 6 01:25:42.218 UTC IS-IS 1 Level-1 adjacencies: System Id Interface SNPA State Hold Changed NSF IPv4 IPv6 BFD BFD R1 Gi0/0/0/0 5254.004e.accf Up 23 00:23:37 Yes None None Area Address: 49.0001 Neighbor IPv4 Address: 10.0.0.1* DIS Priority: 64 Local Priority: 64 (DIS) Neighbor Priority: 64 Topology: IPv4 Unicast BFD Status: Neighbor Useable (BFD Not Configured) R2 Gi0/0/0/0 5254.006d.5fdf Up 21 00:29:29 Yes None None Area Address: 49.0001 Neighbor IPv4 Address: 10.0.0.2* DIS Priority: 64 Local Priority: 64 (DIS) Neighbor Priority: 64 Topology: IPv4 Unicast BFD Status: Neighbor Useable (BFD Not Configured) R4 Gi0/0/0/1 *PtoP* Up 26 00:29:24 Yes None None Area Address: 49.0001 Neighbor IPv4 Address: 10.0.34.4* Topology: IPv4 Unicast BFD Status: Neighbor Useable (BFD Not Configured) Adjacency Flaps: 1 Total adjacency count: 3 IS-IS 1 Level-2 adjacencies: System Id Interface SNPA State Hold Changed NSF IPv4 IPv6 BFD BFD R2 Gi0/0/0/0 5254.006d.5fdf Up 26 00:29:29 Yes None None Area Address: 49.0001 Neighbor IPv4 Address: 10.0.0.2* DIS Priority: 64 Local Priority: 64 (DIS) Neighbor Priority: 64 Topology: IPv4 Unicast BFD Status: Neighbor Useable (BFD Not Configured) R4 Gi0/0/0/1 *PtoP* Up 26 00:29:24 Yes None None Area Address: 49.0001 Neighbor IPv4 Address: 10.0.34.4* Topology: IPv4 Unicast BFD Status: Neighbor Useable (BFD Not Configured) Adjacency Flaps: 1 Total adjacency count: 2 RP/0/RP0/CPU0:R3#show isis adjacency-log Tue Oct 6 01:25:42.418 UTC IS-IS 1 Level 1 Adjacency Log Capacity: 100, Size: 8 When System Interface State Details --- Tue Oct 6 2026 --- 00:56:12.402 R1 Gi0/0/0/0 d -> u New adjacency IPv4 Unicast Up 00:56:12.402 R2 Gi0/0/0/0 d -> u New adjacency IPv4 Unicast Up 00:56:12.961 R4 Gi0/0/0/1 d -> i 00:56:13.569 R4 Gi0/0/0/1 i -> u New adjacency IPv4 Unicast Up 00:56:17.450 R4 Gi0/0/0/1 u -> i 3-way state down IPv4 Unicast Down 00:56:18.061 R4 Gi0/0/0/1 i -> u Restarted IPv4 Unicast Up 01:02:04.114 R1 Gi0/0/0/0 u -> i Neighbor forgot us IPv4 Unicast Down 01:02:05.114 R1 Gi0/0/0/0 i -> u Restarted IPv4 Unicast Up IS-IS 1 Level 2 Adjacency Log Capacity: 100, Size: 5 When System Interface State Details --- Tue Oct 6 2026 --- 00:56:12.402 R2 Gi0/0/0/0 d -> u New adjacency IPv4 Unicast Up 00:56:12.961 R4 Gi0/0/0/1 d -> i 00:56:13.569 R4 Gi0/0/0/1 i -> u New adjacency IPv4 Unicast Up 00:56:17.450 R4 Gi0/0/0/1 u -> i 3-way state down IPv4 Unicast Down 00:56:18.061 R4 Gi0/0/0/1 i -> u Restarted IPv4 Unicast Up RP/0/RP0/CPU0:R3#show isis database Tue Oct 6 01:25:42.566 UTC IS-IS 1 (Level-1) Link State Database LSPID LSP Seq Num LSP Checksum LSP Holdtime/Rcvd ATT/P/OL R1.00-00 0x0000000b 0x1264 563 /1200 0/0/0 R2.00-00 0x0000000e 0xce6f 979 /1200 1/0/0 R3.00-00 * 0x0000000e 0x6072 1098 /* 1/0/0 R3.01-00 0x0000000c 0xc9bb 613 /* 0/0/0 R4.00-00 0x0000000c 0x37e3 983 /1200 1/0/0 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 R2.00-00 0x00000010 0xaedc 483 /1200 0/0/0 R3.00-00 * 0x00000015 0x849b 509 /* 0/0/0 R3.01-00 0x00000006 0xf6c1 1069 /* 0/0/0 R4.00-00 0x00000017 0xc7f9 681 /1200 0/0/0 R5.00-00 0x0000000b 0x6414 1010 /1200 0/0/0 Total Level-2 LSP count: 5 Local Level-2 LSP count: 1 RP/0/RP0/CPU0:R3#show isis database detail Tue Oct 6 01:25:42.752 UTC IS-IS 1 (Level-1) Link State Database LSPID LSP Seq Num LSP Checksum LSP Holdtime/Rcvd ATT/P/OL R1.00-00 0x0000000b 0x1264 563 /1200 0/0/0 Area Address: 49.0001 LSP MTU: 1492 NLPID: 0xcc IP Address: 1.1.1.1 Hostname: R1 Metric: 10 IS-Extended R3.01 Metric: 0 IP-Extended 1.1.1.1/32 Metric: 10 IP-Extended 10.0.0.0/24 R2.00-00 0x0000000e 0xce6f 979 /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 R3.01 Metric: 0 IP-Extended 2.2.2.2/32 Metric: 10 IP-Extended 10.0.0.0/24 R3.00-00 * 0x0000000e 0x6072 1098 /* 1/0/0 Area Address: 49.0001 LSP MTU: 1492 NLPID: 0xcc IP Address: 3.3.3.3 Hostname: R3 Metric: 10 IS-Extended R3.01 Metric: 10 IS-Extended R4.00 Metric: 0 IP-Extended 3.3.3.3/32 Metric: 10 IP-Extended 10.0.0.0/24 Metric: 10 IP-Extended 10.0.34.0/24 R3.01-00 0x0000000c 0xc9bb 613 /* 0/0/0 Metric: 0 IS-Extended R2.00 Metric: 0 IS-Extended R1.00 Metric: 0 IS-Extended R3.00 R4.00-00 0x0000000c 0x37e3 983 /1200 1/0/0 Area Address: 49.0001 LSP MTU: 1492 NLPID: 0xcc IP Address: 4.4.4.4 Hostname: R4 Metric: 10 IS-Extended R3.00 Metric: 0 IP-Extended 4.4.4.4/32 Metric: 10 IP-Extended 10.0.34.0/24 Metric: 10 IP-Extended 10.0.45.0/24 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 R2.00-00 0x00000010 0xaedc 483 /1200 0/0/0 Area Address: 49.0001 LSP MTU: 1492 NLPID: 0xcc IP Address: 2.2.2.2 Hostname: R2 Metric: 10 IS-Extended R3.01 Metric: 10 IP-Extended 1.1.1.1/32 Metric: 0 IP-Extended 2.2.2.2/32 Metric: 10 IP-Extended 3.3.3.3/32 Metric: 20 IP-Extended 4.4.4.4/32 Metric: 10 IP-Extended 10.0.0.0/24 Metric: 20 IP-Extended 10.0.34.0/24 Metric: 30 IP-Extended 10.0.45.0/24 R3.00-00 * 0x00000015 0x849b 508 /* 0/0/0 Area Address: 49.0001 LSP MTU: 1492 NLPID: 0xcc IP Address: 3.3.3.3 Hostname: R3 Metric: 10 IS-Extended R3.01 Metric: 10 IS-Extended R4.00 Metric: 10 IP-Extended 1.1.1.1/32 Metric: 10 IP-Extended 2.2.2.2/32 Metric: 0 IP-Extended 3.3.3.3/32 Metric: 10 IP-Extended 4.4.4.4/32 Metric: 10 IP-Extended 10.0.0.0/24 Metric: 10 IP-Extended 10.0.34.0/24 Metric: 20 IP-Extended 10.0.45.0/24 R3.01-00 0x00000006 0xf6c1 1069 /* 0/0/0 Metric: 0 IS-Extended R2.00 Metric: 0 IS-Extended R3.00 R4.00-00 0x00000017 0xc7f9 681 /1200 0/0/0 Area Address: 49.0001 LSP MTU: 1492 NLPID: 0xcc IP Address: 4.4.4.4 Hostname: R4 Metric: 10 IS-Extended R3.00 Metric: 10 IS-Extended R5.00 Metric: 20 IP-Extended 1.1.1.1/32 Metric: 20 IP-Extended 2.2.2.2/32 Metric: 10 IP-Extended 3.3.3.3/32 Metric: 0 IP-Extended 4.4.4.4/32 Metric: 20 IP-Extended 10.0.0.0/24 Metric: 10 IP-Extended 10.0.34.0/24 Metric: 10 IP-Extended 10.0.45.0/24 R5.00-00 0x0000000b 0x6414 1010 /1200 0/0/0 Area Address: 49.0002 LSP MTU: 1492 NLPID: 0xcc IP Address: 5.5.5.5 Hostname: R5 Metric: 10 IS-Extended R4.00 Metric: 0 IP-Extended 5.5.5.5/32 Metric: 10 IP-Extended 10.0.45.0/24 Total Level-2 LSP count: 5 Local Level-2 LSP count: 1 RP/0/RP0/CPU0:R3#show isis database verbose Tue Oct 6 01:25:43.051 UTC IS-IS 1 (Level-1) Link State Database LSPID LSP Seq Num LSP Checksum LSP Holdtime/Rcvd ATT/P/OL R1.00-00 0x0000000b 0x1264 563 /1200 0/0/0 Area Address: 49.0001 LSP MTU: 1492 NLPID: 0xcc IP Address: 1.1.1.1 Hostname: R1 Metric: 10 IS-Extended R3.01 Metric: 0 IP-Extended 1.1.1.1/32 Prefix Attribute Flags: X:0 R:0 N:1 E:0 A:0 Metric: 10 IP-Extended 10.0.0.0/24 Prefix Attribute Flags: X:0 R:0 N:0 E:0 A:0 R2.00-00 0x0000000e 0xce6f 979 /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 R3.01 Metric: 0 IP-Extended 2.2.2.2/32 Prefix Attribute Flags: X:0 R:0 N:1 E:0 A:0 Metric: 10 IP-Extended 10.0.0.0/24 Prefix Attribute Flags: X:0 R:0 N:0 E:0 A:0 R3.00-00 * 0x0000000e 0x6072 1098 /* 1/0/0 Area Address: 49.0001 LSP MTU: 1492 NLPID: 0xcc IP Address: 3.3.3.3 Hostname: R3 Metric: 10 IS-Extended R3.01 Metric: 10 IS-Extended R4.00 Metric: 0 IP-Extended 3.3.3.3/32 Prefix Attribute Flags: X:0 R:0 N:1 E:0 A:0 Metric: 10 IP-Extended 10.0.0.0/24 Prefix Attribute Flags: X:0 R:0 N:0 E:0 A:0 Metric: 10 IP-Extended 10.0.34.0/24 Prefix Attribute Flags: X:0 R:0 N:0 E:0 A:0 R3.01-00 0x0000000c 0xc9bb 613 /* 0/0/0 Metric: 0 IS-Extended R2.00 Metric: 0 IS-Extended R1.00 Metric: 0 IS-Extended R3.00 R4.00-00 0x0000000c 0x37e3 982 /1200 1/0/0 Area Address: 49.0001 LSP MTU: 1492 NLPID: 0xcc IP Address: 4.4.4.4 Hostname: R4 Metric: 10 IS-Extended R3.00 Metric: 0 IP-Extended 4.4.4.4/32 Prefix Attribute Flags: X:0 R:0 N:1 E:0 A:0 Metric: 10 IP-Extended 10.0.34.0/24 Prefix Attribute Flags: X:0 R:0 N:0 E:0 A:0 Metric: 10 IP-Extended 10.0.45.0/24 Prefix Attribute Flags: X:0 R:0 N:0 E:0 A: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 R2.00-00 0x00000010 0xaedc 483 /1200 0/0/0 Area Address: 49.0001 LSP MTU: 1492 NLPID: 0xcc IP Address: 2.2.2.2 Hostname: R2 Metric: 10 IS-Extended R3.01 Metric: 10 IP-Extended 1.1.1.1/32 Prefix Attribute Flags: X:0 R:1 N:1 E:0 A:0 Metric: 0 IP-Extended 2.2.2.2/32 Prefix Attribute Flags: X:0 R:0 N:1 E:0 A:0 Metric: 10 IP-Extended 3.3.3.3/32 Prefix Attribute Flags: X:0 R:1 N:1 E:0 A:0 Metric: 20 IP-Extended 4.4.4.4/32 Prefix Attribute Flags: X:0 R:1 N:1 E:0 A:0 Metric: 10 IP-Extended 10.0.0.0/24 Prefix Attribute Flags: X:0 R:0 N:0 E:0 A:0 Metric: 20 IP-Extended 10.0.34.0/24 Prefix Attribute Flags: X:0 R:1 N:0 E:0 A:0 Metric: 30 IP-Extended 10.0.45.0/24 Prefix Attribute Flags: X:0 R:1 N:0 E:0 A:0 R3.00-00 * 0x00000015 0x849b 508 /* 0/0/0 Area Address: 49.0001 LSP MTU: 1492 NLPID: 0xcc IP Address: 3.3.3.3 Hostname: R3 Metric: 10 IS-Extended R3.01 Metric: 10 IS-Extended R4.00 Metric: 10 IP-Extended 1.1.1.1/32 Prefix Attribute Flags: X:0 R:1 N:1 E:0 A:0 Metric: 10 IP-Extended 2.2.2.2/32 Prefix Attribute Flags: X:0 R:1 N:1 E:0 A:0 Metric: 0 IP-Extended 3.3.3.3/32 Prefix Attribute Flags: X:0 R:0 N:1 E:0 A:0 Metric: 10 IP-Extended 4.4.4.4/32 Prefix Attribute Flags: X:0 R:1 N:1 E:0 A:0 Metric: 10 IP-Extended 10.0.0.0/24 Prefix Attribute Flags: X:0 R:0 N:0 E:0 A:0 Metric: 10 IP-Extended 10.0.34.0/24 Prefix Attribute Flags: X:0 R:0 N:0 E:0 A:0 Metric: 20 IP-Extended 10.0.45.0/24 Prefix Attribute Flags: X:0 R:1 N:0 E:0 A:0 R3.01-00 0x00000006 0xf6c1 1068 /* 0/0/0 Metric: 0 IS-Extended R2.00 Metric: 0 IS-Extended R3.00 R4.00-00 0x00000017 0xc7f9 681 /1200 0/0/0 Area Address: 49.0001 LSP MTU: 1492 NLPID: 0xcc IP Address: 4.4.4.4 Hostname: R4 Metric: 10 IS-Extended R3.00 Metric: 10 IS-Extended R5.00 Metric: 20 IP-Extended 1.1.1.1/32 Prefix Attribute Flags: X:0 R:1 N:1 E:0 A:0 Metric: 20 IP-Extended 2.2.2.2/32 Prefix Attribute Flags: X:0 R:1 N:1 E:0 A:0 Metric: 10 IP-Extended 3.3.3.3/32 Prefix Attribute Flags: X:0 R:1 N:1 E:0 A:0 Metric: 0 IP-Extended 4.4.4.4/32 Prefix Attribute Flags: X:0 R:0 N:1 E:0 A:0 Metric: 20 IP-Extended 10.0.0.0/24 Prefix Attribute Flags: X:0 R:1 N:0 E:0 A:0 Metric: 10 IP-Extended 10.0.34.0/24 Prefix Attribute Flags: X:0 R:0 N:0 E:0 A:0 Metric: 10 IP-Extended 10.0.45.0/24 Prefix Attribute Flags: X:0 R:0 N:0 E:0 A:0 R5.00-00 0x0000000b 0x6414 1010 /1200 0/0/0 Area Address: 49.0002 LSP MTU: 1492 NLPID: 0xcc IP Address: 5.5.5.5 Hostname: R5 Metric: 10 IS-Extended R4.00 Metric: 0 IP-Extended 5.5.5.5/32 Prefix Attribute Flags: X:0 R:0 N:1 E:0 A:0 Metric: 10 IP-Extended 10.0.45.0/24 Prefix Attribute Flags: X:0 R:0 N:0 E:0 A:0 Total Level-2 LSP count: 5 Local Level-2 LSP count: 1 RP/0/RP0/CPU0:R3#show isis topology Tue Oct 6 01:25:43.192 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 5254.004e.accf R2 10 R2 Gi0/0/0/0 5254.006d.5fdf R3 -- R4 10 R4 Gi0/0/0/1 *PtoP* IS-IS 1 paths to IPv4 Unicast (Level-2) routers System Id Metric Next-Hop Interface SNPA R2 10 R2 Gi0/0/0/0 5254.006d.5fdf R3 -- R4 10 R4 Gi0/0/0/1 *PtoP* R5 20 R4 Gi0/0/0/1 *PtoP* RP/0/RP0/CPU0:R3#show isis spf-log Tue Oct 6 01:25:43.318 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 ------------ ----- ----- ----- ----- -------------------- ---------------------- --- Tue Oct 6 2026 --- 00:56:23.340 FSPF 0 6 31 R1.00-00 CONFIG NEWNODE NEWLSP OVLSET LINKGOOD PREFIXGOOD AREAADDR IPADDR 00:56:25.420 FSPF 0 6 1 R3.00-00 OVLCLR 00:56:29.208 FSPF 0 6 1 R4.00-00 OVLCLR 00:56:59.659 PRC 0 6 3 R3.00-00 ATTSET 01:02:04.166 FSPF 2 5 2 R3.01-00 DELADJ LINKBAD 01:02:06.395 FSPF 5 5 1 R3.01-00 LINKGOOD 01:02:07.219 FSPF 0 5 1 R1.00-00 OVLSET 01:02:16.144 FSPF 0 5 1 R1.00-00 OVLCLR 01:17:16.195 FSPF 0 5 1 PERIODIC IS-IS 1 Level 2 IPv4 Unicast Route Calculation Log Capacity: 210, Size: 14 Time Total Trig. Timestamp Type (ms) Nodes Count First Trigger LSP Triggers ------------ ----- ----- ----- ----- -------------------- ---------------------- --- Tue Oct 6 2026 --- 00:56:23.341 FSPF 0 5 29 R2.00-00 CONFIG NEWNODE NEWLSP OVLSET LINKGOOD PREFIXGOOD AREAADDR IPADDR 00:56:23.351 NHC 0 5 1 R3.00-00 AREAADDR 00:56:23.799 FSPF 2 5 2 R2.00-00 OVLCLR PREFIXGOOD 00:56:27.190 NHC 0 5 1 R4.00-00 AREAADDR 00:56:28.791 FSPF 0 5 6 R3.00-00 OVLSET OVLCLR LINKGOOD PREFIXGOOD AREAADDR 00:56:31.993 FSPF 3 5 3 R4.00-00 OVLCLR PREFIXGOOD AREAADDR 00:56:36.997 FSPF 0 5 1 R5.00-00 OVLCLR 00:56:59.556 FSPF 1 5 1 R4.00-00 LINKGOOD 01:02:04.270 PRC 0 5 1 R3.00-00 PREFIXBAD 01:02:04.471 PRC 1 5 2 R4.00-00 PREFIXBAD 01:02:06.503 PRC 0 5 3 R3.00-00 PREFIXGOOD 01:07:45.804 PRC 2 5 1 R5.00-00 PREFIXGOOD 01:11:59.609 FSPF 0 5 1 PERIODIC 01:22:33.341 PRC 2 5 1 R5.00-00 PREFIXBAD RP/0/RP0/CPU0:R3#show isis spf-log detail Tue Oct 6 01:25:43.511 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 ------------ ----- ----- ----- ----- -------------------- ---------------------- --- Tue Oct 6 2026 --- 00:56:23.340 FSPF 0 6 31 R1.00-00 CONFIG NEWNODE NEWLSP OVLSET LINKGOOD PREFIXGOOD AREAADDR IPADDR Delay: 11132ms (since first trigger) Trigger Link: R3.01 Trigger Prefix: 1.1.1.1/32 Trigger LSPs: 5 New LSP Arrivals: 0 SR uloop: No Next Wait Interval: 200ms RIB Batches: 0 (0 critical, 0 high, 0 medium, 0 low) Timings (ms): +--Total--+ Real CPU SPT Calculation: 0 0 Route Update: 0 0 ----- ----- Full Calculation: 0 0 00:56:25.420 FSPF 0 6 1 R3.00-00 OVLCLR Delay: 50ms (since first trigger) 2080ms (since end of last calculation) Trigger LSPs: 1 New LSP Arrivals: 0 SR uloop: No Next Wait Interval: 400ms RIB Batches: 0 (0 critical, 0 high, 0 medium, 0 low) Timings (ms): +--Total--+ Real CPU SPT Calculation: 0 0 Route Update: 0 0 ----- ----- Full Calculation: 0 0 00:56:29.208 FSPF 0 6 1 R4.00-00 OVLCLR Delay: 50ms (since first trigger) 3788ms (since end of last calculation) Trigger LSPs: 1 New LSP Arrivals: 0 SR uloop: No Next Wait Interval: 800ms RIB Batches: 0 (0 critical, 0 high, 0 medium, 0 low) Timings (ms): +--Total--+ Real CPU SPT Calculation: 0 0 Route Update: 0 0 ----- ----- Full Calculation: 0 0 00:56:59.659 PRC 0 6 3 R3.00-00 ATTSET Delay: 50ms (since first trigger) 30451ms (since end of last calculation) Trigger LSPs: 3 New LSP Arrivals: 0 SR uloop: No Next Wait Interval: 200ms RIB Batches: 0 (0 critical, 0 high, 0 medium, 0 low) Timings (ms): +--Total--+ Real CPU SPT Calculation: 0 0 Route Update: 0 0 ----- ----- Full Calculation: 0 0 01:02:04.166 FSPF 2 5 2 R3.01-00 DELADJ LINKBAD Delay: 51ms (since first trigger) 304507ms (since end of last calculation) Trigger Link: R1.00 Trigger Next Hop: R1 Trigger LSPs: 1 New LSP Arrivals: 0 SR uloop: No Next Wait Interval: 200ms RIB Batches: 2 (0 critical, 0 high, 1 medium, 1 low) Timings (ms): +--Total--+ Real CPU SPT Calculation: 0 0 Route Update: 2 1 ----- ----- Full Calculation: 2 1 01:02:06.395 FSPF 5 5 1 R3.01-00 LINKGOOD Delay: 50ms (since first trigger) 2227ms (since end of last calculation) Trigger Link: R1.00 Trigger LSPs: 1 New LSP Arrivals: 0 SR uloop: No Next Wait Interval: 400ms RIB Batches: 2 (0 critical, 0 high, 1 medium, 1 low) Timings (ms): +--Total--+ Real CPU SPT Calculation: 0 0 Route Update: 5 0 ----- ----- Full Calculation: 5 0 01:02:07.219 FSPF 0 5 1 R1.00-00 OVLSET Delay: 50ms (since first trigger) 819ms (since end of last calculation) Trigger LSPs: 1 New LSP Arrivals: 0 SR uloop: No Next Wait Interval: 800ms RIB Batches: 0 (0 critical, 0 high, 0 medium, 0 low) Timings (ms): +--Total--+ Real CPU SPT Calculation: 0 0 Route Update: 0 0 ----- ----- Full Calculation: 0 0 01:02:16.144 FSPF 0 5 1 R1.00-00 OVLCLR Delay: 50ms (since first trigger) 8925ms (since end of last calculation) Trigger LSPs: 1 New LSP Arrivals: 0 SR uloop: No Next Wait Interval: 1600ms RIB Batches: 0 (0 critical, 0 high, 0 medium, 0 low) Timings (ms): +--Total--+ Real CPU SPT Calculation: 0 0 Route Update: 0 0 ----- ----- Full Calculation: 0 0 01:17:16.195 FSPF 0 5 1 PERIODIC Delay: 50ms (since first trigger) 900051ms (since end of last calculation) Trigger LSPs: 0 New LSP Arrivals: 0 SR uloop: No Next Wait Interval: 200ms RIB Batches: 0 (0 critical, 0 high, 0 medium, 0 low) Timings (ms): +--Total--+ Real CPU SPT Calculation: 0 0 Route Update: 0 0 ----- ----- Full Calculation: 0 0 IS-IS 1 Level 2 IPv4 Unicast Route Calculation Log Capacity: 210, Size: 14 Time Total Trig. Timestamp Type (ms) Nodes Count First Trigger LSP Triggers ------------ ----- ----- ----- ----- -------------------- ---------------------- --- Tue Oct 6 2026 --- 00:56:23.341 FSPF 0 5 29 R2.00-00 CONFIG NEWNODE NEWLSP OVLSET LINKGOOD PREFIXGOOD AREAADDR IPADDR Delay: 11131ms (since first trigger) Trigger Link: R3.01 Trigger Prefix: 2.2.2.2/32 Trigger LSPs: 5 New LSP Arrivals: 0 SR uloop: No Next Wait Interval: 200ms RIB Batches: 0 (0 critical, 0 high, 0 medium, 0 low) Timings (ms): +--Total--+ Real CPU SPT Calculation: 0 0 Route Update: 0 0 ----- ----- Full Calculation: 0 0 00:56:23.351 NHC 0 5 1 R3.00-00 AREAADDR Delay: 0ms (since first trigger) 10ms (since end of last calculation) Trigger LSPs: 1 New LSP Arrivals: 0 SR uloop: No Next Wait Interval: 400ms RIB Batches: 0 (0 critical, 0 high, 0 medium, 0 low) Timings (ms): +--Total--+ Real CPU SPT Calculation: 0 0 Route Update: 0 0 ----- ----- Full Calculation: 0 0 00:56:23.799 FSPF 2 5 2 R2.00-00 OVLCLR PREFIXGOOD Delay: 51ms (since first trigger) 448ms (since end of last calculation) Trigger Prefix: 1.1.1.1/32 Trigger LSPs: 1 New LSP Arrivals: 0 SR uloop: No Next Wait Interval: 800ms RIB Batches: 2 (0 critical, 0 high, 1 medium, 1 low) Timings (ms): +--Total--+ Real CPU SPT Calculation: 0 0 Route Update: 2 0 ----- ----- Full Calculation: 2 0 00:56:27.190 NHC 0 5 1 R4.00-00 AREAADDR Delay: 50ms (since first trigger) 3389ms (since end of last calculation) Trigger LSPs: 1 New LSP Arrivals: 0 SR uloop: No Next Wait Interval: 1600ms RIB Batches: 0 (0 critical, 0 high, 0 medium, 0 low) Timings (ms): +--Total--+ Real CPU SPT Calculation: 0 0 Route Update: 0 0 ----- ----- Full Calculation: 0 0 00:56:28.791 FSPF 0 5 6 R3.00-00 OVLSET OVLCLR LINKGOOD PREFIXGOOD AREAADDR Delay: 439ms (since first trigger) 1601ms (since end of last calculation) Trigger Prefix: 1.1.1.1/32 Trigger LSPs: 3 New LSP Arrivals: 0 SR uloop: No Next Wait Interval: 3200ms RIB Batches: 0 (0 critical, 0 high, 0 medium, 0 low) Timings (ms): +--Total--+ Real CPU SPT Calculation: 0 0 Route Update: 0 0 ----- ----- Full Calculation: 0 0 00:56:31.993 FSPF 3 5 3 R4.00-00 OVLCLR PREFIXGOOD AREAADDR Delay: 1704ms (since first trigger) 3202ms (since end of last calculation) Trigger Prefix: 1.1.1.1/32 Trigger LSPs: 2 New LSP Arrivals: 0 SR uloop: No Next Wait Interval: 5000ms RIB Batches: 2 (0 critical, 0 high, 1 medium, 1 low) Timings (ms): +--Total--+ Real CPU SPT Calculation: 0 0 Route Update: 3 0 ----- ----- Full Calculation: 3 0 00:56:36.997 FSPF 0 5 1 R5.00-00 OVLCLR Delay: 3312ms (since first trigger) 5001ms (since end of last calculation) Trigger LSPs: 1 New LSP Arrivals: 0 SR uloop: No Next Wait Interval: 5000ms RIB Batches: 0 (0 critical, 0 high, 0 medium, 0 low) Timings (ms): +--Total--+ Real CPU SPT Calculation: 0 0 Route Update: 0 0 ----- ----- Full Calculation: 0 0 00:56:59.556 FSPF 1 5 1 R4.00-00 LINKGOOD Delay: 50ms (since first trigger) 22559ms (since end of last calculation) Trigger Link: R5.00 Trigger LSPs: 1 New LSP Arrivals: 0 SR uloop: No Next Wait Interval: 200ms RIB Batches: 2 (0 critical, 0 high, 1 medium, 1 low) Timings (ms): +--Total--+ Real CPU SPT Calculation: 0 0 Route Update: 1 0 ----- ----- Full Calculation: 1 0 01:02:04.270 PRC 0 5 1 R3.00-00 PREFIXBAD Delay: 50ms (since first trigger) 304713ms (since end of last calculation) Trigger Prefix: 1.1.1.1/32 Trigger LSPs: 1 New LSP Arrivals: 0 SR uloop: No Next Wait Interval: 200ms RIB Batches: 0 (0 critical, 0 high, 0 medium, 0 low) Timings (ms): +--Total--+ Real CPU SPT Calculation: 0 0 Route Update: 0 0 ----- ----- Full Calculation: 0 0 01:02:04.471 PRC 1 5 2 R4.00-00 PREFIXBAD Delay: 195ms (since first trigger) 201ms (since end of last calculation) Trigger Prefix: 1.1.1.1/32 Trigger LSPs: 2 New LSP Arrivals: 0 SR uloop: No Next Wait Interval: 400ms RIB Batches: 2 (0 critical, 0 high, 1 medium, 1 low) Timings (ms): +--Total--+ Real CPU SPT Calculation: 0 0 Route Update: 1 0 ----- ----- Full Calculation: 1 0 01:02:06.503 PRC 0 5 3 R3.00-00 PREFIXGOOD Delay: 51ms (since first trigger) 2031ms (since end of last calculation) Trigger Prefix: 1.1.1.1/32 Trigger LSPs: 3 New LSP Arrivals: 0 SR uloop: No Next Wait Interval: 800ms RIB Batches: 0 (0 critical, 0 high, 0 medium, 0 low) Timings (ms): +--Total--+ Real CPU SPT Calculation: 0 0 Route Update: 0 0 ----- ----- Full Calculation: 0 0 01:07:45.804 PRC 2 5 1 R5.00-00 PREFIXGOOD Delay: 50ms (since first trigger) 339301ms (since end of last calculation) Trigger Prefix: 172.16.5.1/32 Trigger LSPs: 1 New LSP Arrivals: 0 SR uloop: No Next Wait Interval: 200ms RIB Batches: 2 (0 critical, 0 high, 1 medium, 1 low) Timings (ms): +--Total--+ Real CPU SPT Calculation: 0 0 Route Update: 2 0 ----- ----- Full Calculation: 2 0 01:11:59.609 FSPF 0 5 1 PERIODIC Delay: 51ms (since first trigger) 253803ms (since end of last calculation) Trigger LSPs: 0 New LSP Arrivals: 0 SR uloop: No Next Wait Interval: 200ms RIB Batches: 0 (0 critical, 0 high, 0 medium, 0 low) Timings (ms): +--Total--+ Real CPU SPT Calculation: 0 0 Route Update: 0 0 ----- ----- Full Calculation: 0 0 01:22:33.341 PRC 2 5 1 R5.00-00 PREFIXBAD Delay: 51ms (since first trigger) 633732ms (since end of last calculation) Trigger Prefix: 172.16.5.1/32 Trigger LSPs: 1 New LSP Arrivals: 0 SR uloop: No Next Wait Interval: 200ms RIB Batches: 2 (0 critical, 0 high, 1 medium, 1 low) Timings (ms): +--Total--+ Real CPU SPT Calculation: 0 0 Route Update: 2 0 ----- ----- Full Calculation: 2 0 RP/0/RP0/CPU0:R3#show isis lsp-log Tue Oct 6 01:25:43.716 UTC IS-IS 1 Level 1 LSP Generation Log Capacity: 50, Size: 7 When Count Interface Triggers --- Tue Oct 6 2026 --- 00:56:12.401 2 Gi0/0/0/0 CONFIG MSD 00:56:13.576 1 Gi0/0/0/1 NEWADJ 00:56:15.404 1 Gi0/0/0/0 DIS 00:56:17.511 1 Gi0/0/0/1 SABIT 00:56:21.821 1 Gi0/0/0/1 SABIT 00:56:25.369 1 LSPDBOL 00:56:59.608 1 ATTACHFLAG IS-IS 1 Level 1 Pseudo-node 01 LSP Generation Log When Count Interface Triggers --- Tue Oct 6 2026 --- 00:56:15.403 1 Gi0/0/0/0 DIS 01:02:04.164 2 Gi0/0/0/0 DELADJ SABIT 01:02:05.164 1 Gi0/0/0/0 NEWADJ 01:02:06.344 1 Gi0/0/0/0 SABIT IS-IS 1 Level 2 LSP Generation Log Capacity: 50, Size: 9 When Count Interface Triggers --- Tue Oct 6 2026 --- 00:56:12.401 2 Gi0/0/0/0 CONFIG MSD 00:56:13.576 1 Gi0/0/0/1 NEWADJ 00:56:15.404 1 Gi0/0/0/0 DIS 00:56:17.511 1 Gi0/0/0/1 SABIT 00:56:21.821 1 Gi0/0/0/1 SABIT 00:56:23.350 1 AREASET 00:56:28.351 1 LSPDBOL 01:02:04.219 1 IPIA 01:02:06.452 1 IPIA IS-IS 1 Level 2 Pseudo-node 01 LSP Generation Log When Count Interface Triggers --- Tue Oct 6 2026 --- 00:56:15.404 1 Gi0/0/0/0 DIS RP/0/RP0/CPU0:R3#show isis statistics Tue Oct 6 01:25:43.972 UTC IS-IS 1 Packet and Event Statistics Dropped Dropped Total PDUs Sent Received On Input By Update Hello: 1430 821 0 - CSNP: 407 2 - 0 PSNP: 23 29 0 0 LSP: 118 62 0 0 LSP Retransmissions: 5 LSP Checksum Errors: 0 IS-IS Update Queue: 0/3500 Total Traffic: 93 High Water Mark: 8 HWM Set: Tue 2026 Oct 06 00:56:13.575 UTC Total Drops: 0 IS-IS Input Queue: 0/4200 Total Traffic: 915 High Water Mark: 8 Total Drops: 0 Level-1 LSPs sourced (new/refresh): 13/3 Route Calculations IPv4 Unicast Total: 9 Full SPF Calculations: 8 Periodic: 1 Partial Route Calc: 1 Next Hop Calculations: 0 Level-2 LSPs sourced (new/refresh): 11/3 Route Calculations IPv4 Unicast Total: 14 Full SPF Calculations: 7 Periodic: 1 Partial Route Calc: 5 Next Hop Calculations: 2 RP/0/RP0/CPU0:R3#show route isis Tue Oct 6 01:25:44.098 UTC i L1 1.1.1.1/32 [115/10] via 10.0.0.1, 00:23:37, GigabitEthernet0/0/0/0 i L1 2.2.2.2/32 [115/10] via 10.0.0.2, 00:29:20, GigabitEthernet0/0/0/0 i L1 4.4.4.4/32 [115/10] via 10.0.34.4, 00:29:20, GigabitEthernet0/0/0/1 i L2 5.5.5.5/32 [115/20] via 10.0.34.4, 00:28:44, GigabitEthernet0/0/0/1 i L1 10.0.45.0/24 [115/20] via 10.0.34.4, 00:29:20, GigabitEthernet0/0/0/1 RP/0/RP0/CPU0:R3#show isis route Tue Oct 6 01:25:44.266 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 [0/115] L1 1.1.1.1/32 [10/115] via 10.0.0.1, GigabitEthernet0/0/0/0, R1, Weight: 0 L1 2.2.2.2/32 [10/115] via 10.0.0.2, GigabitEthernet0/0/0/0, R2, Weight: 0 C 3.3.3.3/32 is directly connected, Loopback0 L1 4.4.4.4/32 [10/115] via 10.0.34.4, GigabitEthernet0/0/0/1, R4, Weight: 0 L2 5.5.5.5/32 [20/115] via 10.0.34.4, GigabitEthernet0/0/0/1, R4, Weight: 0 C 10.0.0.0/24 is directly connected, GigabitEthernet0/0/0/0 C 10.0.34.0/24 is directly connected, GigabitEthernet0/0/0/1 L1 10.0.45.0/24 [20/115] via 10.0.34.4, GigabitEthernet0/0/0/1, R4, Weight: 0 RP/0/RP0/CPU0:R3#show running-config router isis Tue Oct 6 01:25:44.558 UTC router isis 1 net 49.0001.0030.0300.3003.00 log adjacency changes address-family ipv4 unicast metric-style wide ! interface Loopback0 passive address-family ipv4 unicast ! ! interface GigabitEthernet0/0/0/0 address-family ipv4 unicast metric 10 ! ! interface GigabitEthernet0/0/0/1 point-to-point address-family ipv4 unicast metric 10 ! ! ! RP/0/RP0/CPU0:R3#show isis database level 1 Tue Oct 6 01:25:45.602 UTC IS-IS 1 (Level-1) Link State Database LSPID LSP Seq Num LSP Checksum LSP Holdtime/Rcvd ATT/P/OL R1.00-00 0x0000000b 0x1264 560 /1200 0/0/0 R2.00-00 0x0000000e 0xce6f 976 /1200 1/0/0 R3.00-00 * 0x0000000e 0x6072 1095 /* 1/0/0 R3.01-00 0x0000000c 0xc9bb 610 /* 0/0/0 R4.00-00 0x0000000c 0x37e3 980 /1200 1/0/0 Total Level-1 LSP count: 5 Local Level-1 LSP count: 1 RP/0/RP0/CPU0:R3#show isis database level 2 Tue Oct 6 01:25:45.717 UTC IS-IS 1 (Level-2) Link State Database LSPID LSP Seq Num LSP Checksum LSP Holdtime/Rcvd ATT/P/OL R2.00-00 0x00000010 0xaedc 480 /1200 0/0/0 R3.00-00 * 0x00000015 0x849b 505 /* 0/0/0 R3.01-00 0x00000006 0xf6c1 1066 /* 0/0/0 R4.00-00 0x00000017 0xc7f9 678 /1200 0/0/0 R5.00-00 0x0000000b 0x6414 1007 /1200 0/0/0 Total Level-2 LSP count: 5 Local Level-2 LSP count: 1 RP/0/RP0/CPU0:R3#show isis topology level 1 Tue Oct 6 01:25:45.860 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 5254.004e.accf R2 10 R2 Gi0/0/0/0 5254.006d.5fdf R3 -- R4 10 R4 Gi0/0/0/1 *PtoP* RP/0/RP0/CPU0:R3#show isis topology level 2 Tue Oct 6 01:25:46.016 UTC IS-IS 1 paths to IPv4 Unicast (Level-2) routers System Id Metric Next-Hop Interface SNPA R2 10 R2 Gi0/0/0/0 5254.006d.5fdf R3 -- R4 10 R4 Gi0/0/0/1 *PtoP* R5 20 R4 Gi0/0/0/1 *PtoP* RP/0/RP0/CPU0:R3#show running-config router static Tue Oct 6 01:25:46.256 UTC router static vrf Mgmt address-family ipv4 unicast 0.0.0.0/0 10.19.0.1 ! ! ! RP/0/RP0/CPU0:R3#show isis statistics Tue Oct 6 01:25:47.125 UTC IS-IS 1 Packet and Event Statistics Dropped Dropped Total PDUs Sent Received On Input By Update Hello: 1432 824 0 - CSNP: 407 2 - 0 PSNP: 23 29 0 0 LSP: 118 62 0 0 LSP Retransmissions: 5 LSP Checksum Errors: 0 IS-IS Update Queue: 0/3500 Total Traffic: 93 High Water Mark: 8 HWM Set: Tue 2026 Oct 06 00:56:13.575 UTC Total Drops: 0 IS-IS Input Queue: 0/4200 Total Traffic: 918 High Water Mark: 8 Total Drops: 0 Level-1 LSPs sourced (new/refresh): 13/3 Route Calculations IPv4 Unicast Total: 9 Full SPF Calculations: 8 Periodic: 1 Partial Route Calc: 1 Next Hop Calculations: 0 Level-2 LSPs sourced (new/refresh): 11/3 Route Calculations IPv4 Unicast Total: 14 Full SPF Calculations: 7 Periodic: 1 Partial Route Calc: 5 Next Hop Calculations: 2 RP/0/RP0/CPU0:R3#show isis interface brief Tue Oct 6 01:25:47.353 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 2* 1* 1/1 1/1 Up 1497 64 64 Gi0/0/0/1 Yes 1 1 1/1 1/1 Up 1497 - - RP/0/RP0/CPU0:R3#show isis adjacency detail Tue Oct 6 01:25:47.481 UTC IS-IS 1 Level-1 adjacencies: System Id Interface SNPA State Hold Changed NSF IPv4 IPv6 BFD BFD R1 Gi0/0/0/0 5254.004e.accf Up 26 00:23:42 Yes None None Area Address: 49.0001 Neighbor IPv4 Address: 10.0.0.1* DIS Priority: 64 Local Priority: 64 (DIS) Neighbor Priority: 64 Topology: IPv4 Unicast BFD Status: Neighbor Useable (BFD Not Configured) R2 Gi0/0/0/0 5254.006d.5fdf Up 25 00:29:35 Yes None None Area Address: 49.0001 Neighbor IPv4 Address: 10.0.0.2* DIS Priority: 64 Local Priority: 64 (DIS) Neighbor Priority: 64 Topology: IPv4 Unicast BFD Status: Neighbor Useable (BFD Not Configured) R4 Gi0/0/0/1 *PtoP* Up 29 00:29:29 Yes None None Area Address: 49.0001 Neighbor IPv4 Address: 10.0.34.4* Topology: IPv4 Unicast BFD Status: Neighbor Useable (BFD Not Configured) Adjacency Flaps: 1 Total adjacency count: 3 IS-IS 1 Level-2 adjacencies: System Id Interface SNPA State Hold Changed NSF IPv4 IPv6 BFD BFD R2 Gi0/0/0/0 5254.006d.5fdf Up 28 00:29:35 Yes None None Area Address: 49.0001 Neighbor IPv4 Address: 10.0.0.2* DIS Priority: 64 Local Priority: 64 (DIS) Neighbor Priority: 64 Topology: IPv4 Unicast BFD Status: Neighbor Useable (BFD Not Configured) R4 Gi0/0/0/1 *PtoP* Up 29 00:29:29 Yes None None Area Address: 49.0001 Neighbor IPv4 Address: 10.0.34.4* Topology: IPv4 Unicast BFD Status: Neighbor Useable (BFD Not Configured) Adjacency Flaps: 1 Total adjacency count: 2