RP/0/RP0/CPU0:R1#show version Sun Oct 4 06:51:33.748 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 R1 uptime is 39 minutes XRd Control Plane Container RP/0/RP0/CPU0:R1#show interface description Sun Oct 4 06:51:33.912 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 R2 (10.0.12.0/24 p2p) RP/0/RP0/CPU0:R1#show route Sun Oct 4 06:51:34.141 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 L 1.1.1.1/32 is directly connected, 00:36:48, Loopback0 i L1 2.2.2.2/32 [115/10] via 10.0.12.2, 00:02:00, GigabitEthernet0/0/0/0 i L1 3.3.3.3/32 [115/20] via 10.0.12.2, 00:02:00, GigabitEthernet0/0/0/0 i L1 4.4.4.4/32 [115/30] via 10.0.12.2, 00:02:00, GigabitEthernet0/0/0/0 i L1 5.5.5.5/32 [115/20] via 10.0.12.2, 00:02:00, GigabitEthernet0/0/0/0 i L1 6.6.6.6/32 [115/30] via 10.0.12.2, 00:02:00, GigabitEthernet0/0/0/0 C 10.0.12.0/24 is directly connected, 00:36:44, GigabitEthernet0/0/0/0 L 10.0.12.1/32 is directly connected, 00:36:44, GigabitEthernet0/0/0/0 i L1 10.0.23.0/24 [115/20] via 10.0.12.2, 00:02:00, GigabitEthernet0/0/0/0 i L1 10.0.25.0/24 [115/20] via 10.0.12.2, 00:02:00, GigabitEthernet0/0/0/0 i L1 10.0.34.0/24 [115/30] via 10.0.12.2, 00:02:00, GigabitEthernet0/0/0/0 i L1 10.0.36.0/24 [115/30] via 10.0.12.2, 00:02:00, GigabitEthernet0/0/0/0 RP/0/RP0/CPU0:R1#show interface Sun Oct 4 06:51:34.444 UTC Loopback0 is up, line protocol is up Interface state transitions: 1 Hardware is Loopback interface(s) Internet address is 1.1.1.1/32 MTU 1500 bytes, BW 0 Kbit reliability Unknown, txload Unknown, rxload Unknown Encapsulation Loopback, loopback not set, Last link flapped 00:36:49 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 00:38:31 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 5254.00b5.cc4e (bia 5254.00b5.cc4e) Description: management Internet address is 10.19.2.51/16 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 00:36:44 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 3000 bits/sec, 2 packets/sec 2873 packets input, 314214 bytes, 0 total input drops 0 drops for unrecognized upper-level protocol Received 40 broadcast packets, 26 multicast packets 0 runts, 0 giants, 0 throttles, 0 parity 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort 3718 packets output, 697581 bytes, 0 total output drops Output 1 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 5254.0001.f9c4 (bia 5254.0001.f9c4) Description: to R2 (10.0.12.0/24 p2p) Internet address is 10.0.12.1/24 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 00:36:44 ARP type ARPA, ARP timeout 04:00:00 Last input 00:00:00, output 00:00:00 Last clearing of "show interface" counters 00:00:59 5 minute input rate 1000 bits/sec, 1 packets/sec 5 minute output rate 1000 bits/sec, 1 packets/sec 144 packets input, 25876 bytes, 0 total input drops 0 drops for unrecognized upper-level protocol Received 0 broadcast packets, 7 multicast packets 0 runts, 0 giants, 0 throttles, 0 parity 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort 145 packets output, 25170 bytes, 0 total output drops Output 0 broadcast packets, 7 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:R1#show route summary Sun Oct 4 06:51:34.844 UTC Route Source Routes Backup Deleted Memory(bytes) connected 1 1 0 400 local 2 0 0 400 application fib_mgr 0 0 0 0 isis 1 9 1 0 2000 dagr 0 0 0 0 Total 12 2 0 2800 RP/0/RP0/CPU0:R1#show route static Sun Oct 4 06:51:35.109 UTC % No matching routes found RP/0/RP0/CPU0:R1#show cef Sun Oct 4 06:51:35.283 UTC Prefix Next Hop Interface ------------------- ------------------- ------------------ 0.0.0.0/0 drop default handler 0.0.0.0/32 broadcast 1.1.1.1/32 receive Loopback0 2.2.2.2/32 10.0.12.2/32 GigabitEthernet0/0/0/0 3.3.3.3/32 10.0.12.2/32 GigabitEthernet0/0/0/0 4.4.4.4/32 10.0.12.2/32 GigabitEthernet0/0/0/0 5.5.5.5/32 10.0.12.2/32 GigabitEthernet0/0/0/0 6.6.6.6/32 10.0.12.2/32 GigabitEthernet0/0/0/0 10.0.12.0/24 attached GigabitEthernet0/0/0/0 10.0.12.0/32 broadcast GigabitEthernet0/0/0/0 10.0.12.1/32 receive GigabitEthernet0/0/0/0 10.0.12.2/32 10.0.12.2/32 GigabitEthernet0/0/0/0 10.0.12.255/32 broadcast GigabitEthernet0/0/0/0 10.0.23.0/24 10.0.12.2/32 GigabitEthernet0/0/0/0 10.0.25.0/24 10.0.12.2/32 GigabitEthernet0/0/0/0 10.0.34.0/24 10.0.12.2/32 GigabitEthernet0/0/0/0 10.0.36.0/24 10.0.12.2/32 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 RP/0/RP0/CPU0:R1#show arp Sun Oct 4 06:51:35.529 UTC ------------------------------------------------------------------------------- 0/RP0/CPU0 ------------------------------------------------------------------------------- Address Age Hardware Addr State Type Interface 10.0.12.1 - 5254.0001.f9c4 Interface ARPA GigabitEthernet0/0/0/0 10.0.12.2 00:36:38 5254.0086.4323 Dynamic ARPA GigabitEthernet0/0/0/0 RP/0/RP0/CPU0:R1#show configuration commit list Sun Oct 4 06:51:35.682 UTC The commit database is empty. RP/0/RP0/CPU0:R1#show isis Sun Oct 4 06:51:35.790 UTC IS-IS Router: 1 System Id: 0010.0100.1001 Hostname: R1 IS Levels: level-1 Manual area address(es): 49.0001 Routing for area address(es): 49.0001 49.0002 Multi-Instance Id: 0 Running on: RP/0/RP0/CPU0 Job Id: 1003 PID: 4366 Respawn count: 1 Started: Sun 2026 Oct 04 06:14:34.851 UTC Null0 ready: Sun 2026 Oct 04 06:14:36.432 UTC Protocol shutdown: No System memory state: Normal Last change: never Memory state: Normal Last change: never Last/Initial memory usage/limit: 1596873/2147483648 0% Memory state monitoring interval: 60 s Memory usage/limit: 13851126/2147483648 0% Memory usage specifics (count/bytes): Nodes: 6/2448 LSPs: 6/2504 Links: 10/12240 Prefixes: 16/14720 Nets: 11/7184 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: Sun 2026 Oct 04 06:14:37.629 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 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:R1#show isis protocol Sun Oct 4 06:51:36.007 UTC IS-IS Router: 1 System Id: 0010.0100.1001 Hostname: R1 IS Levels: level-1 Manual area address(es): 49.0001 Routing for area address(es): 49.0001 49.0002 Multi-Instance Id: 0 Running on: RP/0/RP0/CPU0 Job Id: 1003 PID: 4366 Respawn count: 1 Started: Sun 2026 Oct 04 06:14:34.851 UTC Null0 ready: Sun 2026 Oct 04 06:14:36.432 UTC Protocol shutdown: No System memory state: Normal Last change: never Memory state: Normal Last change: never Last/Initial memory usage/limit: 1596873/2147483648 0% Memory state monitoring interval: 60 s Memory usage/limit: 13851126/2147483648 0% Memory usage specifics (count/bytes): Nodes: 6/2448 LSPs: 6/2504 Links: 10/12240 Prefixes: 16/14720 Nets: 11/7184 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: Sun 2026 Oct 04 06:14:37.629 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 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:R1#show isis hostname Sun Oct 4 06:51:36.179 UTC IS-IS 1 hostnames Level System ID Dynamic Hostname 1 * 0010.0100.1001 R1 1 0020.0200.2002 R2 1 0060.0600.6006 R6 1 0050.0500.5005 R5 1 0030.0300.3003 R3 1 0040.0400.4004 R4 RP/0/RP0/CPU0:R1#show isis interface Sun Oct 4 06:51:36.332 UTC IS-IS 1 Interfaces Loopback0 Enabled Adjacency Formation: Disabled (Passive in IS-IS cfg) Prefix Advertisement: Enabled Bandwidth: 0 Circuit Type: level-1 (Configured: level-1-2) Media Type: Loop Circuit Number: 0 IPv4 Unicast Topology: Enabled Adjacency Formation: Disabled (Intf passive in IS-IS cfg) Prefix Advertisement: Running Policy (L1/L2): -/- Metric (L1/L2): 0/0 Metric fallback: Bandwidth (L1/L2): Inactive/Inactive Anomaly (L1/L2): Inactive/Inactive Weight (L1/L2): 0/0 MPLS Max Label Stack: 0/0/0/0 (PRI/BKP/SRTE/SRAT) MPLS LDP Sync (L1/L2): Disabled/Disabled IPv4 Address Family: Enabled Protocol State: Up Forwarding Address: None (Intf passive in IS-IS cfg) Global Prefix: 1.1.1.1/32 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 (Configured: level-1-2) Media Type: P2P Circuit Number: 0 Extended Circuit Number: 2 Last IIH Received: 06:51:32 (3.79 sec ago), 1497 octets Last PDU Rejected: 06:49:28 (00:02:08 ago), 1497 octets, P2P IIH, Level or Area Addr mismatch Last IIH Sent: 06:51:32 (4.09 sec ago), 1497 octets Sending next P2P IIH in: 5 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 CLNS I/O Protocol State: Up MTU: 1497 SNPA: 5254.0001.f9c4 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: 10.0.12.1 Global Prefix: 10.0.12.0/24 LSP Transmission is: idle LSP Transmit Timer in: 0 ms LSP Burst Size: 6 LSPs in the next 0 ms LSP Rexmit Queue Size: 0 Adjacency Up: 06:49:33.690 Received CSNP complete: 06:49:34.781 LSP Pacing Start: 06:49:34.690 LSP fast flooding: Disabled PME Link Delays and Loss: - RP/0/RP0/CPU0:R1#show isis interface brief Sun Oct 4 06:51:36.544 UTC IS-IS 1 Interfaces Interface All Adjs Adj Topos Adv Topos CLNS MTU Prio OK L1 L2 Run/Cfg Run/Cfg L1 L2 ----------------- --- --------- --------- --------- ---- ---- -------- Lo0 Yes - - 0/0 1/1 No - - - Gi0/0/0/0 Yes 1 - 1/1 1/1 Up 1497 - - RP/0/RP0/CPU0:R1#show isis neighbors Sun Oct 4 06:51:36.715 UTC IS-IS 1 neighbors: System Id Interface SNPA State Holdtime Type IETF-NSF R2 Gi0/0/0/0 *PtoP* Up 25 L1 Capable Total neighbor count: 1 RP/0/RP0/CPU0:R1#show isis neighbors detail Sun Oct 4 06:51:36.868 UTC IS-IS 1 neighbors: System Id Interface SNPA State Holdtime Type IETF-NSF R2 Gi0/0/0/0 *PtoP* Up 25 L1 Capable Area Address(es): 49.0002 49.0001 IPv4 Address(es): 10.0.12.2* Topologies: 'IPv4 Unicast' Uptime: 00:02:03 Total neighbor count: 1 RP/0/RP0/CPU0:R1#show isis adjacency Sun Oct 4 06:51:37.043 UTC IS-IS 1 Level-1 adjacencies: System Id Interface SNPA State Hold Changed NSF IPv4 IPv6 BFD BFD R2 Gi0/0/0/0 *PtoP* Up 25 00:02:03 Yes None None Total adjacency count: 1 RP/0/RP0/CPU0:R1#show isis adjacency detail Sun Oct 4 06:51:37.279 UTC IS-IS 1 Level-1 adjacencies: System Id Interface SNPA State Hold Changed NSF IPv4 IPv6 BFD BFD R2 Gi0/0/0/0 *PtoP* Up 25 00:02:03 Yes None None Area Address: 49.0002 Area Address: 49.0001 Neighbor IPv4 Address: 10.0.12.2* Topology: IPv4 Unicast BFD Status: Neighbor Useable (BFD Not Configured) Adjacency Flaps: 1 Total adjacency count: 1 RP/0/RP0/CPU0:R1#show isis adjacency-log Sun Oct 4 06:51:37.490 UTC IS-IS 1 Level 1 Adjacency Log Capacity: 100, Size: 5 When System Interface State Details --- Sun Oct 4 2026 --- 06:14:56.620 R2 Gi0/0/0/0 d -> i 06:14:57.231 R2 Gi0/0/0/0 i -> u New adjacency IPv4 Unicast Up 06:42:22.912 R2 Gi0/0/0/0 u -> d Area addr/level differ IPv4 Unicast Down 06:49:33.082 R2 Gi0/0/0/0 d -> i 06:49:33.690 R2 Gi0/0/0/0 i -> u New adjacency IPv4 Unicast Up RP/0/RP0/CPU0:R1#show isis database Sun Oct 4 06:51:37.609 UTC IS-IS 1 (Level-1) Link State Database LSPID LSP Seq Num LSP Checksum LSP Holdtime/Rcvd ATT/P/OL R1.00-00 * 0x00000009 0xd6b8 1076 /* 0/0/0 R2.00-00 0x00000010 0xd4e9 1076 /1199 0/0/0 R3.00-00 0x0000000d 0x917d 346 /1200 0/0/0 R4.00-00 0x00000007 0x2aac 573 /1200 0/0/0 R5.00-00 0x00000008 0xca0c 1076 /1198 0/0/0 R6.00-00 0x00000006 0x1669 621 /1200 0/0/0 Total Level-1 LSP count: 6 Local Level-1 LSP count: 1 RP/0/RP0/CPU0:R1#show isis database detail Sun Oct 4 06:51:37.785 UTC IS-IS 1 (Level-1) Link State Database LSPID LSP Seq Num LSP Checksum LSP Holdtime/Rcvd ATT/P/OL R1.00-00 * 0x00000009 0xd6b8 1075 /* 0/0/0 Area Address: 49.0001 LSP MTU: 1492 NLPID: 0xcc IP Address: 1.1.1.1 Hostname: R1 Metric: 10 IS-Extended R2.00 Metric: 0 IP-Extended 1.1.1.1/32 Metric: 10 IP-Extended 10.0.12.0/24 R2.00-00 0x00000010 0xd4e9 1075 /1199 0/0/0 Area Address: 49.0002 Area Address: 49.0001 LSP MTU: 1492 NLPID: 0xcc IP Address: 2.2.2.2 Hostname: R2 Metric: 10 IS-Extended R1.00 Metric: 10 IS-Extended R3.00 Metric: 10 IS-Extended R5.00 Metric: 0 IP-Extended 2.2.2.2/32 Metric: 10 IP-Extended 10.0.12.0/24 Metric: 10 IP-Extended 10.0.23.0/24 Metric: 10 IP-Extended 10.0.25.0/24 R3.00-00 0x0000000d 0x917d 345 /1200 0/0/0 Area Address: 49.0002 Area Address: 49.0001 LSP MTU: 1492 NLPID: 0xcc IP Address: 3.3.3.3 Hostname: R3 Metric: 10 IS-Extended R2.00 Metric: 10 IS-Extended R4.00 Metric: 10 IS-Extended R6.00 Metric: 0 IP-Extended 3.3.3.3/32 Metric: 10 IP-Extended 10.0.23.0/24 Metric: 10 IP-Extended 10.0.34.0/24 Metric: 10 IP-Extended 10.0.36.0/24 R4.00-00 0x00000007 0x2aac 573 /1200 0/0/0 Area Address: 49.0002 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 R5.00-00 0x00000008 0xca0c 1075 /1198 0/0/0 Area Address: 49.0001 LSP MTU: 1492 NLPID: 0xcc IP Address: 5.5.5.5 Hostname: R5 Metric: 10 IS-Extended R2.00 Metric: 0 IP-Extended 5.5.5.5/32 Metric: 10 IP-Extended 10.0.25.0/24 R6.00-00 0x00000006 0x1669 620 /1200 0/0/0 Area Address: 49.0002 LSP MTU: 1492 NLPID: 0xcc IP Address: 6.6.6.6 Hostname: R6 Metric: 10 IS-Extended R3.00 Metric: 0 IP-Extended 6.6.6.6/32 Metric: 10 IP-Extended 10.0.36.0/24 Total Level-1 LSP count: 6 Local Level-1 LSP count: 1 RP/0/RP0/CPU0:R1#show isis database verbose Sun Oct 4 06:51:37.998 UTC IS-IS 1 (Level-1) Link State Database LSPID LSP Seq Num LSP Checksum LSP Holdtime/Rcvd ATT/P/OL R1.00-00 * 0x00000009 0xd6b8 1075 /* 0/0/0 Area Address: 49.0001 LSP MTU: 1492 NLPID: 0xcc IP Address: 1.1.1.1 Hostname: R1 Metric: 10 IS-Extended R2.00 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 10.0.12.0/24 Prefix Attribute Flags: X:0 R:0 N:0 E:0 A:0 R2.00-00 0x00000010 0xd4e9 1075 /1199 0/0/0 Area Address: 49.0002 Area Address: 49.0001 LSP MTU: 1492 NLPID: 0xcc IP Address: 2.2.2.2 Hostname: R2 Metric: 10 IS-Extended R1.00 Metric: 10 IS-Extended R3.00 Metric: 10 IS-Extended R5.00 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 10.0.12.0/24 Prefix Attribute Flags: X:0 R:0 N:0 E:0 A:0 Metric: 10 IP-Extended 10.0.23.0/24 Prefix Attribute Flags: X:0 R:0 N:0 E:0 A:0 Metric: 10 IP-Extended 10.0.25.0/24 Prefix Attribute Flags: X:0 R:0 N:0 E:0 A:0 R3.00-00 0x0000000d 0x917d 345 /1200 0/0/0 Area Address: 49.0002 Area Address: 49.0001 LSP MTU: 1492 NLPID: 0xcc IP Address: 3.3.3.3 Hostname: R3 Metric: 10 IS-Extended R2.00 Metric: 10 IS-Extended R4.00 Metric: 10 IS-Extended R6.00 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 10.0.23.0/24 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: 10 IP-Extended 10.0.36.0/24 Prefix Attribute Flags: X:0 R:0 N:0 E:0 A:0 R4.00-00 0x00000007 0x2aac 573 /1200 0/0/0 Area Address: 49.0002 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 R5.00-00 0x00000008 0xca0c 1075 /1198 0/0/0 Area Address: 49.0001 LSP MTU: 1492 NLPID: 0xcc IP Address: 5.5.5.5 Hostname: R5 Metric: 10 IS-Extended R2.00 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 10.0.25.0/24 Prefix Attribute Flags: X:0 R:0 N:0 E:0 A:0 R6.00-00 0x00000006 0x1669 620 /1200 0/0/0 Area Address: 49.0002 LSP MTU: 1492 NLPID: 0xcc IP Address: 6.6.6.6 Hostname: R6 Metric: 10 IS-Extended R3.00 Metric: 0 IP-Extended 6.6.6.6/32 Prefix Attribute Flags: X:0 R:0 N:1 E:0 A:0 Metric: 10 IP-Extended 10.0.36.0/24 Prefix Attribute Flags: X:0 R:0 N:0 E:0 A:0 Total Level-1 LSP count: 6 Local Level-1 LSP count: 1 RP/0/RP0/CPU0:R1#show isis topology Sun Oct 4 06:51:38.150 UTC IS-IS 1 paths to IPv4 Unicast (Level-1) routers System Id Metric Next-Hop Interface SNPA R1 -- R2 10 R2 Gi0/0/0/0 *PtoP* R3 20 R2 Gi0/0/0/0 *PtoP* R4 30 R2 Gi0/0/0/0 *PtoP* R5 20 R2 Gi0/0/0/0 *PtoP* R6 30 R2 Gi0/0/0/0 *PtoP* RP/0/RP0/CPU0:R1#show isis spf-log Sun Oct 4 06:51:38.359 UTC IS-IS 1 Level 1 IPv4 Unicast Route Calculation Log Capacity: 210, Size: 20 Time Total Trig. Timestamp Type (ms) Nodes Count First Trigger LSP Triggers ------------ ----- ----- ----- ----- -------------------- ---------------------- --- Sun Oct 4 2026 --- 06:14:37.842 FSPF 0 0 2 CONFIG 06:14:47.738 FSPF 0 1 7 R1.00-00 CONFIG NEWNODE NEWLSP OVLSET PREFIXGOOD AREAADDR IPADDR 06:14:49.892 FSPF 0 1 1 R1.00-00 OVLCLR 06:14:51.899 PRC 0 1 1 R1.00-00 PREFIXGOOD 06:14:58.582 FSPF 0 2 5 R2.00-00 NEWNODE NEWLSP PREFIXGOOD AREAADDR IPADDR 06:15:01.784 FSPF 0 3 6 R5.00-00 NEWNODE NEWLSP LINKGOOD PREFIXGOOD AREAADDR IPADDR 06:15:06.785 FSPF 0 3 1 R2.00-00 LINKGOOD 06:15:11.786 FSPF 2 3 3 R1.00-00 ATTSET LINKGOOD 06:30:11.839 FSPF 0 3 1 PERIODIC 06:32:29.262 NHC 0 3 1 R2.00-00 AREAADDR 06:32:29.464 PRC 1 3 1 R2.00-00 ATTCLR 06:32:35.544 FSPF 2 6 19 R3.00-00 NEWNODE NEWLSP LINKGOOD PREFIXGOOD AREAADDR IPADDR 06:32:36.348 PRC 1 6 1 R3.00-00 ATTSET 06:32:37.950 PRC 0 6 1 R3.00-00 ATTCLR 06:37:23.757 NHC 0 6 1 R3.00-00 AREAADDR 06:42:18.492 NHC 0 6 1 R2.00-00 AREAADDR 06:42:20.341 FSPF 2 6 1 R2.00-00 LINKBAD 06:42:23.013 FSPF 2 6 2 R1.00-00 DELADJ LINKBAD 06:49:02.329 FSPF 0 6 6 R5.00-00 DELNODE LSPEXPIRY LINKBAD PREFIXBAD AREAADDR IPADDR 06:49:33.747 FSPF 3 6 9 R2.00-00 NEWNODE NEWLSP LINKGOOD PREFIXGOOD AREAADDR IPADDR RP/0/RP0/CPU0:R1#show isis spf-log detail Sun Oct 4 06:51:38.535 UTC IS-IS 1 Level 1 IPv4 Unicast Route Calculation Log Capacity: 210, Size: 20 Time Total Trig. Timestamp Type (ms) Nodes Count First Trigger LSP Triggers ------------ ----- ----- ----- ----- -------------------- ---------------------- --- Sun Oct 4 2026 --- 06:14:37.842 FSPF 0 0 2 CONFIG Delay: 0ms (since first trigger) 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 06:14:47.738 FSPF 0 1 7 R1.00-00 CONFIG NEWNODE NEWLSP OVLSET PREFIXGOOD AREAADDR IPADDR Delay: 9895ms (since first trigger) 9896ms (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: 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 06:14:49.892 FSPF 0 1 1 R1.00-00 OVLCLR Delay: 51ms (since first trigger) 2154ms (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 06:14:51.899 PRC 0 1 1 R1.00-00 PREFIXGOOD Delay: 50ms (since first trigger) 2007ms (since end of last calculation) Trigger Prefix: 10.0.12.0/24 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 06:14:58.582 FSPF 0 2 5 R2.00-00 NEWNODE NEWLSP PREFIXGOOD AREAADDR IPADDR Delay: 50ms (since first trigger) 6683ms (since end of last calculation) Trigger Prefix: 2.2.2.2/32 Trigger LSPs: 1 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 06:15:01.784 FSPF 0 3 6 R5.00-00 NEWNODE NEWLSP LINKGOOD PREFIXGOOD AREAADDR IPADDR Delay: 2536ms (since first trigger) 3202ms (since end of last calculation) Trigger Prefix: 5.5.5.5/32 Trigger LSPs: 2 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 06:15:06.785 FSPF 0 3 1 R2.00-00 LINKGOOD Delay: 3089ms (since first trigger) 5001ms (since end of last calculation) Trigger Link: R5.00 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 06:15:11.786 FSPF 2 3 3 R1.00-00 ATTSET LINKGOOD Delay: 2696ms (since first trigger) 5001ms (since end of last calculation) Trigger Link: R2.00 Trigger LSPs: 3 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: 2 0 ----- ----- Full Calculation: 2 0 06:30:11.839 FSPF 0 3 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 06:32:29.262 NHC 0 3 1 R2.00-00 AREAADDR Delay: 50ms (since first trigger) 137423ms (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 06:32:29.464 PRC 1 3 1 R2.00-00 ATTCLR Delay: 120ms (since first trigger) 202ms (since end of last calculation) Trigger LSPs: 1 New LSP Arrivals: 0 SR uloop: No Next Wait Interval: 400ms RIB Batches: 1 (0 critical, 0 high, 0 medium, 1 low) Timings (ms): +--Total--+ Real CPU SPT Calculation: 0 0 Route Update: 1 0 ----- ----- Full Calculation: 1 0 06:32:35.544 FSPF 2 6 19 R3.00-00 NEWNODE NEWLSP LINKGOOD PREFIXGOOD AREAADDR IPADDR Delay: 50ms (since first trigger) 6079ms (since end of last calculation) Trigger Link: R2.00 Trigger Prefix: 3.3.3.3/32 Trigger LSPs: 4 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 1 ----- ----- Full Calculation: 2 1 06:32:36.348 PRC 1 6 1 R3.00-00 ATTSET Delay: 713ms (since first trigger) 802ms (since end of last calculation) Trigger LSPs: 1 New LSP Arrivals: 0 SR uloop: No Next Wait Interval: 1600ms RIB Batches: 1 (0 critical, 0 high, 0 medium, 1 low) Timings (ms): +--Total--+ Real CPU SPT Calculation: 0 0 Route Update: 1 0 ----- ----- Full Calculation: 1 0 06:32:37.950 PRC 0 6 1 R3.00-00 ATTCLR Delay: 1410ms (since first trigger) 1601ms (since end of last calculation) Trigger LSPs: 1 New LSP Arrivals: 0 SR uloop: No Next Wait Interval: 3200ms RIB Batches: 1 (0 critical, 0 high, 0 medium, 1 low) Timings (ms): +--Total--+ Real CPU SPT Calculation: 0 0 Route Update: 0 0 ----- ----- Full Calculation: 0 0 06:37:23.757 NHC 0 6 1 R3.00-00 AREAADDR Delay: 50ms (since first trigger) 285807ms (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 06:42:18.492 NHC 0 6 1 R2.00-00 AREAADDR Delay: 50ms (since first trigger) 294735ms (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 06:42:20.341 FSPF 2 6 1 R2.00-00 LINKBAD Delay: 50ms (since first trigger) 1849ms (since end of last calculation) Trigger Link: R5.00 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: 2 0 ----- ----- Full Calculation: 2 0 06:42:23.013 FSPF 2 6 2 R1.00-00 DELADJ LINKBAD Delay: 50ms (since first trigger) 2670ms (since end of last calculation) Trigger Link: R2.00 Trigger Next Hop: R2 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 06:49:02.329 FSPF 0 6 6 R5.00-00 DELNODE LSPEXPIRY LINKBAD PREFIXBAD AREAADDR IPADDR Delay: 50ms (since first trigger) 399314ms (since end of last calculation) Trigger Link: R2.00 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 06:49:33.747 FSPF 3 6 9 R2.00-00 NEWNODE NEWLSP LINKGOOD PREFIXGOOD AREAADDR IPADDR Delay: 51ms (since first trigger) 31418ms (since end of last calculation) Trigger Link: R5.00 Trigger LSPs: 3 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: 3 1 ----- ----- Full Calculation: 3 1 RP/0/RP0/CPU0:R1#show isis lsp-log Sun Oct 4 06:51:38.703 UTC IS-IS 1 Level 1 LSP Generation Log Capacity: 50, Size: 7 When Count Interface Triggers --- Sun Oct 4 2026 --- 06:14:37.932 2 CONFIG CONFIG 06:14:45.494 1 Lo0 IPUP 06:14:49.841 1 LSPDBOL 06:14:51.848 1 Gi0/0/0/0 MSD 06:15:09.090 1 Gi0/0/0/0 SABIT 06:42:22.962 2 Gi0/0/0/0 DELADJ BESTADJ 06:49:33.741 1 Gi0/0/0/0 NEWADJ RP/0/RP0/CPU0:R1#show isis statistics Sun Oct 4 06:51:38.839 UTC IS-IS 1 Packet and Event Statistics Dropped Dropped Total PDUs Sent Received On Input By Update Hello: 258 256 0 - CSNP: 2 2 - 0 PSNP: 17 6 0 0 LSP: 8 23 0 0 LSP Retransmissions: 0 LSP Checksum Errors: 0 Initiated LSP Purges: 1 Initiated Other LSP Purges: 1 Last Other Purged LSP: R5.00-00 (L1) Last Occurrence: Sun 2026 Oct 04 06:49:02.279 UTC IS-IS Update Queue: 0/3500 Total Traffic: 31 High Water Mark: 3 HWM Set: Sun 2026 Oct 04 06:32:35.492 UTC Total Drops: 0 IS-IS Input Queue: 0/4200 Total Traffic: 287 High Water Mark: 3 Total Drops: 0 Level-1 LSPs sourced (new/refresh): 9/2 Route Calculations IPv4 Unicast Total: 20 Full SPF Calculations: 13 Periodic: 1 Partial Route Calc: 4 Next Hop Calculations: 3 RP/0/RP0/CPU0:R1#show route isis Sun Oct 4 06:51:39.014 UTC i L1 2.2.2.2/32 [115/10] via 10.0.12.2, 00:02:05, GigabitEthernet0/0/0/0 i L1 3.3.3.3/32 [115/20] via 10.0.12.2, 00:02:05, GigabitEthernet0/0/0/0 i L1 4.4.4.4/32 [115/30] via 10.0.12.2, 00:02:05, GigabitEthernet0/0/0/0 i L1 5.5.5.5/32 [115/20] via 10.0.12.2, 00:02:05, GigabitEthernet0/0/0/0 i L1 6.6.6.6/32 [115/30] via 10.0.12.2, 00:02:05, GigabitEthernet0/0/0/0 i L1 10.0.23.0/24 [115/20] via 10.0.12.2, 00:02:05, GigabitEthernet0/0/0/0 i L1 10.0.25.0/24 [115/20] via 10.0.12.2, 00:02:05, GigabitEthernet0/0/0/0 i L1 10.0.34.0/24 [115/30] via 10.0.12.2, 00:02:05, GigabitEthernet0/0/0/0 i L1 10.0.36.0/24 [115/30] via 10.0.12.2, 00:02:05, GigabitEthernet0/0/0/0 RP/0/RP0/CPU0:R1#show isis route Sun Oct 4 06:51:39.343 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 C 1.1.1.1/32 is directly connected, Loopback0 L1 2.2.2.2/32 [10/115] via 10.0.12.2, GigabitEthernet0/0/0/0, R2, Weight: 0 L1 3.3.3.3/32 [20/115] via 10.0.12.2, GigabitEthernet0/0/0/0, R2, Weight: 0 L1 4.4.4.4/32 [30/115] via 10.0.12.2, GigabitEthernet0/0/0/0, R2, Weight: 0 L1 5.5.5.5/32 [20/115] via 10.0.12.2, GigabitEthernet0/0/0/0, R2, Weight: 0 L1 6.6.6.6/32 [30/115] via 10.0.12.2, GigabitEthernet0/0/0/0, R2, Weight: 0 C 10.0.12.0/24 is directly connected, GigabitEthernet0/0/0/0 L1 10.0.23.0/24 [20/115] via 10.0.12.2, GigabitEthernet0/0/0/0, R2, Weight: 0 L1 10.0.25.0/24 [20/115] via 10.0.12.2, GigabitEthernet0/0/0/0, R2, Weight: 0 L1 10.0.34.0/24 [30/115] via 10.0.12.2, GigabitEthernet0/0/0/0, R2, Weight: 0 L1 10.0.36.0/24 [30/115] via 10.0.12.2, GigabitEthernet0/0/0/0, R2, Weight: 0 RP/0/RP0/CPU0:R1#show running-config router isis Sun Oct 4 06:51:39.508 UTC router isis 1 is-type level-1 net 49.0001.0010.0100.1001.00 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 ! ! ! RP/0/RP0/CPU0:R1#show route 0.0.0.0/0 Sun Oct 4 06:51:40.446 UTC % Network not in table RP/0/RP0/CPU0:R1#show isis database level 1 Sun Oct 4 06:51:40.641 UTC IS-IS 1 (Level-1) Link State Database LSPID LSP Seq Num LSP Checksum LSP Holdtime/Rcvd ATT/P/OL R1.00-00 * 0x00000009 0xd6b8 1073 /* 0/0/0 R2.00-00 0x00000010 0xd4e9 1073 /1199 0/0/0 R3.00-00 0x0000000d 0x917d 343 /1200 0/0/0 R4.00-00 0x00000007 0x2aac 570 /1200 0/0/0 R5.00-00 0x00000008 0xca0c 1073 /1198 0/0/0 R6.00-00 0x00000006 0x1669 618 /1200 0/0/0 Total Level-1 LSP count: 6 Local Level-1 LSP count: 1 RP/0/RP0/CPU0:R1#show running-config router static Sun Oct 4 06:51:40.834 UTC router static vrf Mgmt address-family ipv4 unicast 0.0.0.0/0 10.19.0.1 ! ! !