RP/0/RP0/CPU0:R5#show version Tue Oct 6 01:26:36.190 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 R5 uptime is 44 minutes XRd Control Plane Container RP/0/RP0/CPU0:R5#show interface description Tue Oct 6 01:26:36.345 UTC Interface Status Protocol Description -------------------------------------------------------------------------------- Lo0 up up Lo1 up up advertised in STEP 3 Nu0 up up Mg0/RP0/CPU0/0 up up management Gi0/0/0/0 up up to R4 (10.0.45.0/24 p2p) RP/0/RP0/CPU0:R5#show route Tue Oct 6 01:26:36.647 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 [115/30] via 10.0.45.4, 00:24:30, GigabitEthernet0/0/0/0 i L2 2.2.2.2/32 [115/30] via 10.0.45.4, 00:29:37, GigabitEthernet0/0/0/0 i L2 3.3.3.3/32 [115/20] via 10.0.45.4, 00:29:37, GigabitEthernet0/0/0/0 i L2 4.4.4.4/32 [115/10] via 10.0.45.4, 00:29:37, GigabitEthernet0/0/0/0 L 5.5.5.5/32 is directly connected, 00:41:34, Loopback0 i L2 10.0.0.0/24 [115/30] via 10.0.45.4, 00:29:37, GigabitEthernet0/0/0/0 i L2 10.0.34.0/24 [115/20] via 10.0.45.4, 00:29:37, GigabitEthernet0/0/0/0 C 10.0.45.0/24 is directly connected, 00:41:29, GigabitEthernet0/0/0/0 L 10.0.45.5/32 is directly connected, 00:41:29, GigabitEthernet0/0/0/0 L 172.16.5.1/32 is directly connected, 00:41:34, Loopback1 RP/0/RP0/CPU0:R5#show interface Tue Oct 6 01:26:37.073 UTC Loopback0 is up, line protocol is up Interface state transitions: 1 Hardware is Loopback interface(s) Internet address is 5.5.5.5/32 MTU 1500 bytes, BW 0 Kbit reliability Unknown, txload Unknown, rxload Unknown Encapsulation Loopback, loopback not set, Last link flapped 00:41:34 Last input Unknown, output Unknown Last clearing of "show interface" counters Unknown Input/output data rate is disabled. Loopback1 is up, line protocol is up Interface state transitions: 1 Hardware is Loopback interface(s) Description: advertised in STEP 3 Internet address is 172.16.5.1/32 MTU 1500 bytes, BW 0 Kbit reliability Unknown, txload Unknown, rxload Unknown Encapsulation Loopback, loopback not set, Last link flapped 00:41:34 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 00:43:17 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 5254.00a2.31bd (bia 5254.00a2.31bd) Description: management Internet address is 10.19.2.75/16 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 00:41:29 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, 1 packets/sec 5 minute output rate 3000 bits/sec, 2 packets/sec 3860 packets input, 436778 bytes, 0 total input drops 0 drops for unrecognized upper-level protocol Received 0 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 5060 packets output, 1035998 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 5254.00ee.9ce1 (bia 5254.00ee.9ce1) Description: to R4 (10.0.45.0/24 p2p) Internet address is 10.0.45.5/24 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 00:41:29 ARP type ARPA, ARP timeout 04:00:00 Last input 00:00:00, output 00:00:00 Last clearing of "show interface" counters 00:02:42 5 minute input rate 1000 bits/sec, 0 packets/sec 5 minute output rate 1000 bits/sec, 0 packets/sec 130 packets input, 40968 bytes, 0 total input drops 0 drops for unrecognized upper-level protocol Received 0 broadcast packets, 19 multicast packets 0 runts, 0 giants, 0 throttles, 0 parity 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort 127 packets output, 39234 bytes, 0 total output drops Output 0 broadcast packets, 18 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:R5#show route summary Tue Oct 6 01:26:37.431 UTC Route Source Routes Backup Deleted Memory(bytes) connected 1 2 0 600 local 3 0 0 600 application fib_mgr 0 0 0 0 isis 1 6 1 0 1400 dagr 0 0 0 0 Total 10 3 0 2600 RP/0/RP0/CPU0:R5#show route static Tue Oct 6 01:26:37.642 UTC % No matching routes found RP/0/RP0/CPU0:R5#show cef Tue Oct 6 01:26:37.870 UTC Prefix Next Hop Interface ------------------- ------------------- ------------------ 0.0.0.0/0 drop default handler 0.0.0.0/32 broadcast 1.1.1.1/32 10.0.45.4/32 GigabitEthernet0/0/0/0 2.2.2.2/32 10.0.45.4/32 GigabitEthernet0/0/0/0 3.3.3.3/32 10.0.45.4/32 GigabitEthernet0/0/0/0 4.4.4.4/32 10.0.45.4/32 GigabitEthernet0/0/0/0 5.5.5.5/32 receive Loopback0 10.0.0.0/24 10.0.45.4/32 GigabitEthernet0/0/0/0 10.0.34.0/24 10.0.45.4/32 GigabitEthernet0/0/0/0 10.0.45.0/24 attached GigabitEthernet0/0/0/0 10.0.45.0/32 broadcast GigabitEthernet0/0/0/0 10.0.45.4/32 10.0.45.4/32 GigabitEthernet0/0/0/0 10.0.45.5/32 receive GigabitEthernet0/0/0/0 10.0.45.255/32 broadcast GigabitEthernet0/0/0/0 172.16.5.1/32 receive Loopback1 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:R5#show arp Tue Oct 6 01:26:38.170 UTC ------------------------------------------------------------------------------- 0/RP0/CPU0 ------------------------------------------------------------------------------- Address Age Hardware Addr State Type Interface 10.0.45.4 00:41:30 5254.0004.e028 Dynamic ARPA GigabitEthernet0/0/0/0 10.0.45.5 - 5254.00ee.9ce1 Interface ARPA GigabitEthernet0/0/0/0 RP/0/RP0/CPU0:R5#show configuration commit list Tue Oct 6 01:26:38.442 UTC SNo. Label/ID User Line Client Time Stamp ~~~~ ~~~~~~~~ ~~~~ ~~~~ ~~~~~~ ~~~~~~~~~~ 1 1000000004 cisco vty0:node0_RP0_CPU CLI Tue Oct 6 01:22:32 2026 2 1000000003 cisco vty0:node0_RP0_CPU CLI Tue Oct 6 01:07:43 2026 3 1000000002 cisco vty0:node0_RP0_CPU CLI Tue Oct 6 00:35:04 2026 4 1000000001 cisco vty0:node0_RP0_CPU CLI Tue Oct 6 00:20:23 2026 RP/0/RP0/CPU0:R5#show isis Tue Oct 6 01:26:38.579 UTC IS-IS Router: 1 System Id: 0050.0500.5005 Hostname: R5 IS Levels: level-1-2 Manual area address(es): 49.0002 Routing for area address(es): 49.0002 Multi-Instance Id: 0 Running on: RP/0/RP0/CPU0 Job Id: 1003 PID: 6717 Respawn count: 2 Started: Tue 2026 Oct 06 00:56:20.678 UTC Null0 ready: Tue 2026 Oct 06 00:56:21.244 UTC Protocol shutdown: No System memory state: Normal Last change: never Memory state: Normal Last change: never Last/Initial memory usage/limit: 1596047/2147483648 0% Memory state monitoring interval: 60 s Memory usage/limit: 15374632/2147483648 0% Memory usage specifics (count/bytes): Nodes: 6/2448 LSPs: 6/2511 Links: 8/9792 Prefixes: 26/23344 Nets: 9/5808 Paths: 14/1344 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 00:56:21.966 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) RP/0/RP0/CPU0:R5#show isis protocol Tue Oct 6 01:26:38.784 UTC IS-IS Router: 1 System Id: 0050.0500.5005 Hostname: R5 IS Levels: level-1-2 Manual area address(es): 49.0002 Routing for area address(es): 49.0002 Multi-Instance Id: 0 Running on: RP/0/RP0/CPU0 Job Id: 1003 PID: 6717 Respawn count: 2 Started: Tue 2026 Oct 06 00:56:20.678 UTC Null0 ready: Tue 2026 Oct 06 00:56:21.244 UTC Protocol shutdown: No System memory state: Normal Last change: never Memory state: Normal Last change: never Last/Initial memory usage/limit: 1596047/2147483648 0% Memory state monitoring interval: 60 s Memory usage/limit: 15374632/2147483648 0% Memory usage specifics (count/bytes): Nodes: 6/2448 LSPs: 6/2511 Links: 8/9792 Prefixes: 26/23344 Nets: 9/5808 Paths: 14/1344 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 00:56:21.966 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) RP/0/RP0/CPU0:R5#show isis hostname Tue Oct 6 01:26:39.050 UTC IS-IS 1 hostnames Level System ID Dynamic Hostname 2 0020.0200.2002 R2 1,2 * 0050.0500.5005 R5 2 0030.0300.3003 R3 2 0040.0400.4004 R4 RP/0/RP0/CPU0:R5#show isis interface Tue Oct 6 01:26:39.193 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: 5.5.5.5/32 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: 5 Last IIH Received: 01:26:36 (2.91 sec ago), 1497 octets Last PDU Rejected: 00:56:23 (00:30:15 ago), 128 octets, L2 LSP, Wrong Adjacency State Last IIH Sent: 01:26:37 (1.32 sec ago), 1497 octets Sending next P2P IIH in: 7 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: 5254.00ee.9ce1 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: 10.0.45.5 Global Prefix: 10.0.45.0/24 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: 00:56:23.759 Received CSNP complete: 00:56:23.964 LSP Pacing Start: 00:56:23.965 LSP fast flooding: Disabled PME Link Delays and Loss: - RP/0/RP0/CPU0:R5#show isis interface brief Tue Oct 6 01:26:39.313 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 0 1 1/1 1/1 Up 1497 - - RP/0/RP0/CPU0:R5#show isis neighbors Tue Oct 6 01:26:39.436 UTC IS-IS 1 neighbors: System Id Interface SNPA State Holdtime Type IETF-NSF R4 Gi0/0/0/0 *PtoP* Up 26 L2 Capable Total neighbor count: 1 RP/0/RP0/CPU0:R5#show isis neighbors detail Tue Oct 6 01:26:39.686 UTC IS-IS 1 neighbors: System Id Interface SNPA State Holdtime Type IETF-NSF R4 Gi0/0/0/0 *PtoP* Up 26 L2 Capable Area Address(es): 49.0001 IPv4 Address(es): 10.0.45.4* Topologies: 'IPv4 Unicast' Uptime: 00:30:15 Total neighbor count: 1 RP/0/RP0/CPU0:R5#show isis adjacency Tue Oct 6 01:26:39.888 UTC IS-IS 1 Level-1 adjacencies: System Id Interface SNPA State Hold Changed NSF IPv4 IPv6 BFD BFD IS-IS 1 Level-2 adjacencies: System Id Interface SNPA State Hold Changed NSF IPv4 IPv6 BFD BFD R4 Gi0/0/0/0 *PtoP* Up 26 00:30:16 Yes None None Total adjacency count: 1 RP/0/RP0/CPU0:R5#show isis adjacency detail Tue Oct 6 01:26:40.085 UTC IS-IS 1 Level-1 adjacencies: System Id Interface SNPA State Hold Changed NSF IPv4 IPv6 BFD BFD IS-IS 1 Level-2 adjacencies: System Id Interface SNPA State Hold Changed NSF IPv4 IPv6 BFD BFD R4 Gi0/0/0/0 *PtoP* Up 26 00:30:16 Yes None None Area Address: 49.0001 Neighbor IPv4 Address: 10.0.45.4* Topology: IPv4 Unicast BFD Status: Neighbor Useable (BFD Not Configured) Adjacency Flaps: 0 Total adjacency count: 1 RP/0/RP0/CPU0:R5#show isis adjacency-log Tue Oct 6 01:26:40.331 UTC IS-IS 1 Level 1 Adjacency Log Capacity: 100, Size: 0 When System Interface State Details IS-IS 1 Level 2 Adjacency Log Capacity: 100, Size: 2 When System Interface State Details --- Tue Oct 6 2026 --- 00:56:22.264 R4 Gi0/0/0/0 d -> i 00:56:23.759 R4 Gi0/0/0/0 i -> u New adjacency IPv4 Unicast Up RP/0/RP0/CPU0:R5#show isis database Tue Oct 6 01:26:40.539 UTC IS-IS 1 (Level-1) Link State Database LSPID LSP Seq Num LSP Checksum LSP Holdtime/Rcvd ATT/P/OL R5.00-00 * 0x00000007 0xae79 952 /* 1/0/0 Total Level-1 LSP count: 1 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 425 /1200 0/0/0 R3.00-00 0x00000015 0x849b 451 /1200 0/0/0 R3.01-00 0x00000006 0xf6c1 1011 /1200 0/0/0 R4.00-00 0x00000017 0xc7f9 623 /1200 0/0/0 R5.00-00 * 0x0000000b 0x6414 952 /* 0/0/0 Total Level-2 LSP count: 5 Local Level-2 LSP count: 1 RP/0/RP0/CPU0:R5#show isis database detail Tue Oct 6 01:26:40.678 UTC IS-IS 1 (Level-1) Link State Database LSPID LSP Seq Num LSP Checksum LSP Holdtime/Rcvd ATT/P/OL R5.00-00 * 0x00000007 0xae79 952 /* 1/0/0 Area Address: 49.0002 LSP MTU: 1492 NLPID: 0xcc IP Address: 5.5.5.5 Hostname: R5 Metric: 0 IP-Extended 5.5.5.5/32 Metric: 10 IP-Extended 10.0.45.0/24 Total Level-1 LSP count: 1 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 425 /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 450 /1200 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 1011 /1200 0/0/0 Metric: 0 IS-Extended R2.00 Metric: 0 IS-Extended R3.00 R4.00-00 0x00000017 0xc7f9 623 /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 952 /* 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:R5#show isis database verbose Tue Oct 6 01:26:40.932 UTC IS-IS 1 (Level-1) Link State Database LSPID LSP Seq Num LSP Checksum LSP Holdtime/Rcvd ATT/P/OL R5.00-00 * 0x00000007 0xae79 952 /* 1/0/0 Area Address: 49.0002 LSP MTU: 1492 NLPID: 0xcc IP Address: 5.5.5.5 Hostname: R5 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-1 LSP count: 1 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 425 /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 450 /1200 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 1010 /1200 0/0/0 Metric: 0 IS-Extended R2.00 Metric: 0 IS-Extended R3.00 R4.00-00 0x00000017 0xc7f9 623 /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 952 /* 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:R5#show isis topology Tue Oct 6 01:26:41.236 UTC IS-IS 1 paths to IPv4 Unicast (Level-1) routers System Id Metric Next-Hop Interface SNPA R5 -- IS-IS 1 paths to IPv4 Unicast (Level-2) routers System Id Metric Next-Hop Interface SNPA R2 30 R4 Gi0/0/0/0 *PtoP* R3 20 R4 Gi0/0/0/0 *PtoP* R4 10 R4 Gi0/0/0/0 *PtoP* R5 -- RP/0/RP0/CPU0:R5#show isis spf-log Tue Oct 6 01:26:41.444 UTC IS-IS 1 Level 1 IPv4 Unicast Route Calculation Log Capacity: 210, Size: 7 Time Total Trig. Timestamp Type (ms) Nodes Count First Trigger LSP Triggers ------------ ----- ----- ----- ----- -------------------- ---------------------- --- Tue Oct 6 2026 --- 00:56:31.648 FSPF 0 1 7 R5.00-00 CONFIG NEWNODE NEWLSP OVLSET PREFIXGOOD AREAADDR IPADDR 00:56:33.729 FSPF 0 1 1 R5.00-00 OVLCLR 00:56:59.660 PRC 0 1 1 R5.00-00 ATTSET 01:07:45.799 PRC 0 1 1 R5.00-00 PREFIXGOOD 01:11:33.780 FSPF 0 1 1 PERIODIC 01:22:33.333 PRC 0 1 1 R5.00-00 PREFIXBAD 01:26:33.831 FSPF 0 1 1 PERIODIC IS-IS 1 Level 2 IPv4 Unicast Route Calculation Log Capacity: 210, Size: 10 Time Total Trig. Timestamp Type (ms) Nodes Count First Trigger LSP Triggers ------------ ----- ----- ----- ----- -------------------- ---------------------- --- Tue Oct 6 2026 --- 00:56:31.650 FSPF 0 5 28 R2.00-00 CONFIG NEWNODE NEWLSP OVLSET LINKGOOD PREFIXGOOD AREAADDR IPADDR 00:56:31.662 NHC 0 5 1 R5.00-00 AREAADDR 00:56:33.729 FSPF 0 5 1 R5.00-00 OVLCLR 00:56:59.556 FSPF 2 5 1 R4.00-00 LINKGOOD 01:02:04.282 PRC 1 5 2 R3.00-00 PREFIXBAD 01:02:04.484 PRC 1 5 1 R2.00-00 PREFIXBAD 01:02:06.507 PRC 1 5 3 R4.00-00 PREFIXGOOD 01:07:45.798 PRC 0 5 1 R5.00-00 PREFIXGOOD 01:11:59.609 FSPF 0 5 1 PERIODIC 01:22:33.333 PRC 0 5 1 R5.00-00 PREFIXBAD RP/0/RP0/CPU0:R5#show isis spf-log detail Tue Oct 6 01:26:41.749 UTC IS-IS 1 Level 1 IPv4 Unicast Route Calculation Log Capacity: 210, Size: 7 Time Total Trig. Timestamp Type (ms) Nodes Count First Trigger LSP Triggers ------------ ----- ----- ----- ----- -------------------- ---------------------- --- Tue Oct 6 2026 --- 00:56:31.648 FSPF 0 1 7 R5.00-00 CONFIG NEWNODE NEWLSP OVLSET PREFIXGOOD AREAADDR IPADDR Delay: 10157ms (since first trigger) Trigger Prefix: 5.5.5.5/32 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 00:56:33.729 FSPF 0 1 1 R5.00-00 OVLCLR Delay: 50ms (since first trigger) 2081ms (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 00:56:59.660 PRC 0 1 1 R5.00-00 ATTSET Delay: 50ms (since first trigger) 25931ms (since end of last calculation) 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 01:07:45.799 PRC 0 1 1 R5.00-00 PREFIXGOOD Delay: 51ms (since first trigger) 646139ms (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: 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 01:11:33.780 FSPF 0 1 1 PERIODIC Delay: 50ms (since first trigger) 227981ms (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 01:22:33.333 PRC 0 1 1 R5.00-00 PREFIXBAD Delay: 50ms (since first trigger) 659553ms (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: 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 01:26:33.831 FSPF 0 1 1 PERIODIC Delay: 50ms (since first trigger) 240498ms (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: 10 Time Total Trig. Timestamp Type (ms) Nodes Count First Trigger LSP Triggers ------------ ----- ----- ----- ----- -------------------- ---------------------- --- Tue Oct 6 2026 --- 00:56:31.650 FSPF 0 5 28 R2.00-00 CONFIG NEWNODE NEWLSP OVLSET LINKGOOD PREFIXGOOD AREAADDR IPADDR Delay: 10157ms (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 00:56:31.662 NHC 0 5 1 R5.00-00 AREAADDR Delay: 0ms (since first trigger) 12ms (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 00:56:33.729 FSPF 0 5 1 R5.00-00 OVLCLR Delay: 50ms (since first trigger) 2067ms (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 00:56:59.556 FSPF 2 5 1 R4.00-00 LINKGOOD Delay: 50ms (since first trigger) 25827ms (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: 2 1 ----- ----- Full Calculation: 2 1 01:02:04.282 PRC 1 5 2 R3.00-00 PREFIXBAD Delay: 51ms (since first trigger) 304724ms (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: 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 01:02:04.484 PRC 1 5 1 R2.00-00 PREFIXBAD Delay: 52ms (since first trigger) 201ms (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: 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 01:02:06.507 PRC 1 5 3 R4.00-00 PREFIXGOOD Delay: 51ms (since first trigger) 2022ms (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: 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 01:07:45.798 PRC 0 5 1 R5.00-00 PREFIXGOOD Delay: 50ms (since first trigger) 339290ms (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: 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 01:11:59.609 FSPF 0 5 1 PERIODIC Delay: 50ms (since first trigger) 253811ms (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 01:22:33.333 PRC 0 5 1 R5.00-00 PREFIXBAD Delay: 50ms (since first trigger) 633724ms (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: 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 RP/0/RP0/CPU0:R5#show isis lsp-log Tue Oct 6 01:26:41.947 UTC IS-IS 1 Level 1 LSP Generation Log Capacity: 50, Size: 6 When Count Interface Triggers --- Tue Oct 6 2026 --- 00:56:21.627 1 CONFIG 00:56:23.667 1 Gi0/0/0/0 MSD 00:56:33.678 1 LSPDBOL 00:56:59.609 1 ATTACHFLAG 01:07:45.747 1 Lo1 CONFIG 01:22:33.282 1 IPDOWN IS-IS 1 Level 2 LSP Generation Log Capacity: 50, Size: 7 When Count Interface Triggers --- Tue Oct 6 2026 --- 00:56:21.628 1 CONFIG 00:56:23.667 1 Gi0/0/0/0 MSD 00:56:24.068 1 Gi0/0/0/0 NEWADJ 00:56:31.660 1 AREASET 00:56:33.678 1 LSPDBOL 01:07:45.747 1 Lo1 CONFIG 01:22:33.282 1 IPDOWN RP/0/RP0/CPU0:R5#show isis statistics Tue Oct 6 01:26:42.248 UTC IS-IS 1 Packet and Event Statistics Dropped Dropped Total PDUs Sent Received On Input By Update Hello: 210 210 0 - CSNP: 1 1 - 0 PSNP: 13 6 0 0 LSP: 7 19 0 0 LSP Retransmissions: 0 LSP Checksum Errors: 0 IS-IS Update Queue: 0/3500 Total Traffic: 26 High Water Mark: 2 HWM Set: Tue 2026 Oct 06 00:56:28.754 UTC Total Drops: 0 IS-IS Input Queue: 0/4200 Total Traffic: 241 High Water Mark: 3 Total Drops: 0 Level-1 LSPs sourced (new/refresh): 8/1 Route Calculations IPv4 Unicast Total: 7 Full SPF Calculations: 4 Periodic: 2 Partial Route Calc: 3 Next Hop Calculations: 0 Level-2 LSPs sourced (new/refresh): 9/1 Route Calculations IPv4 Unicast Total: 10 Full SPF Calculations: 4 Periodic: 1 Partial Route Calc: 5 Next Hop Calculations: 1 RP/0/RP0/CPU0:R5#show route isis Tue Oct 6 01:26:42.649 UTC i L2 1.1.1.1/32 [115/30] via 10.0.45.4, 00:24:36, GigabitEthernet0/0/0/0 i L2 2.2.2.2/32 [115/30] via 10.0.45.4, 00:29:43, GigabitEthernet0/0/0/0 i L2 3.3.3.3/32 [115/20] via 10.0.45.4, 00:29:43, GigabitEthernet0/0/0/0 i L2 4.4.4.4/32 [115/10] via 10.0.45.4, 00:29:43, GigabitEthernet0/0/0/0 i L2 10.0.0.0/24 [115/30] via 10.0.45.4, 00:29:43, GigabitEthernet0/0/0/0 i L2 10.0.34.0/24 [115/20] via 10.0.45.4, 00:29:43, GigabitEthernet0/0/0/0 RP/0/RP0/CPU0:R5#show isis route Tue Oct 6 01:26:42.882 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] L2 1.1.1.1/32 [30/115] via 10.0.45.4, GigabitEthernet0/0/0/0, R4, Weight: 0 L2 2.2.2.2/32 [30/115] via 10.0.45.4, GigabitEthernet0/0/0/0, R4, Weight: 0 L2 3.3.3.3/32 [20/115] via 10.0.45.4, GigabitEthernet0/0/0/0, R4, Weight: 0 L2 4.4.4.4/32 [10/115] via 10.0.45.4, GigabitEthernet0/0/0/0, R4, Weight: 0 C 5.5.5.5/32 is directly connected, Loopback0 L2 10.0.0.0/24 [30/115] via 10.0.45.4, GigabitEthernet0/0/0/0, R4, Weight: 0 L2 10.0.34.0/24 [20/115] via 10.0.45.4, GigabitEthernet0/0/0/0, R4, Weight: 0 C 10.0.45.0/24 is directly connected, GigabitEthernet0/0/0/0 RP/0/RP0/CPU0:R5#show running-config router isis Tue Oct 6 01:26:43.141 UTC router isis 1 net 49.0002.0050.0500.5005.00 log adjacency changes address-family ipv4 unicast metric-style wide ! interface Loopback0 passive address-family ipv4 unicast ! ! interface GigabitEthernet0/0/0/0 point-to-point address-family ipv4 unicast metric 10 ! ! ! RP/0/RP0/CPU0:R5#show isis database level 1 Tue Oct 6 01:26:44.475 UTC IS-IS 1 (Level-1) Link State Database LSPID LSP Seq Num LSP Checksum LSP Holdtime/Rcvd ATT/P/OL R5.00-00 * 0x00000007 0xae79 948 /* 1/0/0 Total Level-1 LSP count: 1 Local Level-1 LSP count: 1 RP/0/RP0/CPU0:R5#show isis database level 2 Tue Oct 6 01:26:44.747 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 421 /1200 0/0/0 R3.00-00 0x00000015 0x849b 446 /1200 0/0/0 R3.01-00 0x00000006 0xf6c1 1007 /1200 0/0/0 R4.00-00 0x00000017 0xc7f9 619 /1200 0/0/0 R5.00-00 * 0x0000000b 0x6414 948 /* 0/0/0 Total Level-2 LSP count: 5 Local Level-2 LSP count: 1 RP/0/RP0/CPU0:R5#show isis topology level 1 Tue Oct 6 01:26:44.975 UTC IS-IS 1 paths to IPv4 Unicast (Level-1) routers System Id Metric Next-Hop Interface SNPA R5 -- RP/0/RP0/CPU0:R5#show isis topology level 2 Tue Oct 6 01:26:45.135 UTC IS-IS 1 paths to IPv4 Unicast (Level-2) routers System Id Metric Next-Hop Interface SNPA R2 30 R4 Gi0/0/0/0 *PtoP* R3 20 R4 Gi0/0/0/0 *PtoP* R4 10 R4 Gi0/0/0/0 *PtoP* R5 -- RP/0/RP0/CPU0:R5#show running-config router static Tue Oct 6 01:26:45.379 UTC router static vrf Mgmt address-family ipv4 unicast 0.0.0.0/0 10.19.0.1 ! ! ! RP/0/RP0/CPU0:R5#show isis statistics Tue Oct 6 01:26:46.334 UTC IS-IS 1 Packet and Event Statistics Dropped Dropped Total PDUs Sent Received On Input By Update Hello: 210 211 0 - CSNP: 1 1 - 0 PSNP: 13 6 0 0 LSP: 7 19 0 0 LSP Retransmissions: 0 LSP Checksum Errors: 0 IS-IS Update Queue: 0/3500 Total Traffic: 26 High Water Mark: 2 HWM Set: Tue 2026 Oct 06 00:56:28.754 UTC Total Drops: 0 IS-IS Input Queue: 0/4200 Total Traffic: 242 High Water Mark: 3 Total Drops: 0 Level-1 LSPs sourced (new/refresh): 8/1 Route Calculations IPv4 Unicast Total: 7 Full SPF Calculations: 4 Periodic: 2 Partial Route Calc: 3 Next Hop Calculations: 0 Level-2 LSPs sourced (new/refresh): 9/1 Route Calculations IPv4 Unicast Total: 10 Full SPF Calculations: 4 Periodic: 1 Partial Route Calc: 5 Next Hop Calculations: 1 RP/0/RP0/CPU0:R5#show isis interface brief Tue Oct 6 01:26:46.514 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 0 1 1/1 1/1 Up 1497 - - RP/0/RP0/CPU0:R5#show isis adjacency detail Tue Oct 6 01:26:46.706 UTC IS-IS 1 Level-1 adjacencies: System Id Interface SNPA State Hold Changed NSF IPv4 IPv6 BFD BFD IS-IS 1 Level-2 adjacencies: System Id Interface SNPA State Hold Changed NSF IPv4 IPv6 BFD BFD R4 Gi0/0/0/0 *PtoP* Up 28 00:30:22 Yes None None Area Address: 49.0001 Neighbor IPv4 Address: 10.0.45.4* Topology: IPv4 Unicast BFD Status: Neighbor Useable (BFD Not Configured) Adjacency Flaps: 0 Total adjacency count: 1