RP/0/RP0/CPU0:R1#show version Sun Oct 4 15:53:24.263 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 1 hour, 3 minutes XRd Control Plane Container RP/0/RP0/CPU0:R1#show interface description Sun Oct 4 15:53:24.399 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 15:53:24.660 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 10.0.12.2 to network 0.0.0.0 i*L1 0.0.0.0/0 [115/10] via 10.0.12.2, 00:02:18, GigabitEthernet0/0/0/0 L 1.1.1.1/32 is directly connected, 01:00:29, Loopback0 i L1 2.2.2.2/32 [115/10] via 10.0.12.2, 00:15:32, GigabitEthernet0/0/0/0 i L1 6.6.6.6/32 [115/20] via 10.0.12.2, 00:15:32, GigabitEthernet0/0/0/0 C 10.0.12.0/24 is directly connected, 01:00:23, GigabitEthernet0/0/0/0 L 10.0.12.1/32 is directly connected, 01:00:23, GigabitEthernet0/0/0/0 i L1 10.0.25.0/24 [115/20] via 10.0.12.2, 00:15:32, GigabitEthernet0/0/0/0 i L1 10.0.26.0/24 [115/20] via 10.0.12.2, 00:15:32, GigabitEthernet0/0/0/0 i L1 172.16.0.100/32 [115/20] via 10.0.12.2, 00:15:32, GigabitEthernet0/0/0/0 RP/0/RP0/CPU0:R1#show interface Sun Oct 4 15:53:24.890 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 01:00:29 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 01:02:18 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 5254.0004.85cb (bia 5254.0004.85cb) Description: management Internet address is 10.19.2.61/16 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 01:00:23 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 2000 bits/sec, 2 packets/sec 5224 packets input, 566050 bytes, 0 total input drops 0 drops for unrecognized upper-level protocol Received 13 broadcast packets, 32 multicast packets 0 runts, 0 giants, 0 throttles, 0 parity 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort 7091 packets output, 1356330 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 5254.0060.ab0a (bia 5254.0060.ab0a) 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 01:00:24 ARP type ARPA, ARP timeout 04:00:00 Last input 00:00:00, output 00:00:00 Last clearing of "show interface" counters 00:01:19 5 minute input rate 1000 bits/sec, 1 packets/sec 5 minute output rate 1000 bits/sec, 1 packets/sec 123 packets input, 26294 bytes, 0 total input drops 0 drops for unrecognized upper-level protocol Received 0 broadcast packets, 9 multicast packets 0 runts, 0 giants, 0 throttles, 0 parity 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort 123 packets output, 25750 bytes, 0 total output drops Output 0 broadcast packets, 9 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 15:53:25.241 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 6 1 0 1400 dagr 0 0 0 0 Total 9 2 0 2200 RP/0/RP0/CPU0:R1#show route static Sun Oct 4 15:53:25.460 UTC % No matching routes found RP/0/RP0/CPU0:R1#show cef Sun Oct 4 15:53:25.661 UTC Prefix Next Hop Interface ------------------- ------------------- ------------------ 0.0.0.0/0 10.0.12.2/32 GigabitEthernet0/0/0/0 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 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 10.0.25.0/24 10.0.12.2/32 GigabitEthernet0/0/0/0 10.0.26.0/24 10.0.12.2/32 GigabitEthernet0/0/0/0 172.16.0.100/32 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 15:53:26.003 UTC ------------------------------------------------------------------------------- 0/RP0/CPU0 ------------------------------------------------------------------------------- Address Age Hardware Addr State Type Interface 10.0.12.1 - 5254.0060.ab0a Interface ARPA GigabitEthernet0/0/0/0 10.0.12.2 01:00:14 5254.0099.58a9 Dynamic ARPA GigabitEthernet0/0/0/0 RP/0/RP0/CPU0:R1#show configuration commit list Sun Oct 4 15:53:26.125 UTC The commit database is empty. RP/0/RP0/CPU0:R1#show isis Sun Oct 4 15:53:26.318 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 Multi-Instance Id: 0 Running on: RP/0/RP0/CPU0 Job Id: 1003 PID: 4364 Respawn count: 1 Started: Sun 2026 Oct 04 14:52:43.166 UTC Null0 ready: Sun 2026 Oct 04 14:52:44.747 UTC Protocol shutdown: No System memory state: Normal Last change: never Memory state: Normal Last change: never Last/Initial memory usage/limit: 1596892/2147483648 0% Memory state monitoring interval: 60 s Memory usage/limit: 13807380/2147483648 0% Memory usage specifics (count/bytes): Nodes: 3/1224 LSPs: 3/1256 Links: 4/4896 Prefixes: 10/8624 Nets: 8/5120 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: Sun 2026 Oct 04 14:52:45.659 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 15:53:26.564 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 Multi-Instance Id: 0 Running on: RP/0/RP0/CPU0 Job Id: 1003 PID: 4364 Respawn count: 1 Started: Sun 2026 Oct 04 14:52:43.166 UTC Null0 ready: Sun 2026 Oct 04 14:52:44.747 UTC Protocol shutdown: No System memory state: Normal Last change: never Memory state: Normal Last change: never Last/Initial memory usage/limit: 1596892/2147483648 0% Memory state monitoring interval: 60 s Memory usage/limit: 13807380/2147483648 0% Memory usage specifics (count/bytes): Nodes: 3/1224 LSPs: 3/1256 Links: 4/4896 Prefixes: 10/8624 Nets: 8/5120 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: Sun 2026 Oct 04 14:52:45.659 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 15:53:26.712 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 RP/0/RP0/CPU0:R1#show isis interface Sun Oct 4 15:53:26.830 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: 4 Last IIH Received: 15:53:25 (1.44 sec ago), 1497 octets Last PDU Rejected: 15:37:42 (00:15:44 ago), 1497 octets, P2P IIH, Level or Area Addr mismatch Last IIH Sent: 15:53:20 (6.58 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 CLNS I/O Protocol State: Up MTU: 1497 SNPA: 5254.0060.ab0a 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: 9 LSPs in the next 0 ms LSP Rexmit Queue Size: 0 Adjacency Up: 15:37:50.490 Received CSNP complete: 15:37:50.798 LSP Pacing Start: 15:37:50.799 LSP fast flooding: Disabled PME Link Delays and Loss: - RP/0/RP0/CPU0:R1#show isis interface brief Sun Oct 4 15:53:26.949 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 15:53:27.083 UTC IS-IS 1 neighbors: System Id Interface SNPA State Holdtime Type IETF-NSF R2 Gi0/0/0/0 *PtoP* Up 28 L1 Capable Total neighbor count: 1 RP/0/RP0/CPU0:R1#show isis neighbors detail Sun Oct 4 15:53:27.363 UTC IS-IS 1 neighbors: System Id Interface SNPA State Holdtime Type IETF-NSF R2 Gi0/0/0/0 *PtoP* Up 28 L1 Capable Area Address(es): 49.0001 IPv4 Address(es): 10.0.12.2* Topologies: 'IPv4 Unicast' Uptime: 00:15:36 Total neighbor count: 1 RP/0/RP0/CPU0:R1#show isis adjacency Sun Oct 4 15:53:27.535 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 27 00:15:37 Yes None None Total adjacency count: 1 RP/0/RP0/CPU0:R1#show isis adjacency detail Sun Oct 4 15:53:27.671 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 27 00:15:37 Yes None None 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 15:53:27.961 UTC IS-IS 1 Level 1 Adjacency Log Capacity: 100, Size: 5 When System Interface State Details --- Sun Oct 4 2026 --- 14:53:11.491 R2 Gi0/0/0/0 d -> i 14:53:12.100 R2 Gi0/0/0/0 i -> u New adjacency IPv4 Unicast Up 15:30:12.831 R2 Gi0/0/0/0 u -> d Area addr/level differ IPv4 Unicast Down 15:37:50.164 R2 Gi0/0/0/0 d -> i 15:37:50.491 R2 Gi0/0/0/0 i -> u New adjacency IPv4 Unicast Up RP/0/RP0/CPU0:R1#show isis database Sun Oct 4 15:53:28.117 UTC IS-IS 1 (Level-1) Link State Database LSPID LSP Seq Num LSP Checksum LSP Holdtime/Rcvd ATT/P/OL R1.00-00 * 0x0000000a 0xd4b9 1115 /* 0/0/0 R2.00-00 0x00000004 0xd09a 1057 /1200 1/0/0 R6.00-00 0x0000000c 0xfcf2 985 /1200 0/0/0 Total Level-1 LSP count: 3 Local Level-1 LSP count: 1 RP/0/RP0/CPU0:R1#show isis database detail Sun Oct 4 15:53:28.252 UTC IS-IS 1 (Level-1) Link State Database LSPID LSP Seq Num LSP Checksum LSP Holdtime/Rcvd ATT/P/OL R1.00-00 * 0x0000000a 0xd4b9 1115 /* 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 0x00000004 0xd09a 1057 /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 R1.00 Metric: 10 IS-Extended R6.00 Metric: 0 IP-Extended 2.2.2.2/32 Metric: 10 IP-Extended 10.0.12.0/24 Metric: 10 IP-Extended 10.0.25.0/24 Metric: 10 IP-Extended 10.0.26.0/24 R6.00-00 0x0000000c 0xfcf2 985 /1200 0/0/0 Area Address: 49.0001 LSP MTU: 1492 NLPID: 0xcc IP Address: 6.6.6.6 Hostname: R6 Metric: 10 IS-Extended R2.00 Metric: 0 IP-Extended 6.6.6.6/32 Metric: 10 IP-Extended 10.0.26.0/24 Metric: 0 IP-Extended 172.16.0.100/32 Total Level-1 LSP count: 3 Local Level-1 LSP count: 1 RP/0/RP0/CPU0:R1#show isis database verbose Sun Oct 4 15:53:28.465 UTC IS-IS 1 (Level-1) Link State Database LSPID LSP Seq Num LSP Checksum LSP Holdtime/Rcvd ATT/P/OL R1.00-00 * 0x0000000a 0xd4b9 1114 /* 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 0x00000004 0xd09a 1057 /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 R1.00 Metric: 10 IS-Extended R6.00 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 10.0.25.0/24 Prefix Attribute Flags: X:0 R:0 N:0 E:0 A:0 Metric: 10 IP-Extended 10.0.26.0/24 Prefix Attribute Flags: X:0 R:0 N:0 E:0 A:0 R6.00-00 0x0000000c 0xfcf2 985 /1200 0/0/0 Area Address: 49.0001 LSP MTU: 1492 NLPID: 0xcc IP Address: 6.6.6.6 Hostname: R6 Metric: 10 IS-Extended R2.00 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 10.0.26.0/24 Prefix Attribute Flags: X:0 R:0 N:0 E:0 A:0 Metric: 0 IP-Extended 172.16.0.100/32 Prefix Attribute Flags: X:0 R:0 N:1 E:0 A:0 Total Level-1 LSP count: 3 Local Level-1 LSP count: 1 RP/0/RP0/CPU0:R1#show isis topology Sun Oct 4 15:53:28.803 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* R6 20 R2 Gi0/0/0/0 *PtoP* RP/0/RP0/CPU0:R1#show isis spf-log Sun Oct 4 15:53:28.952 UTC IS-IS 1 Level 1 IPv4 Unicast Route Calculation Log Capacity: 210, Size: 22 Time Total Trig. Timestamp Type (ms) Nodes Count First Trigger LSP Triggers ------------ ----- ----- ----- ----- -------------------- ---------------------- --- Sun Oct 4 2026 --- 14:52:45.967 FSPF 0 0 2 CONFIG 14:52:56.953 FSPF 0 1 7 R1.00-00 CONFIG NEWNODE NEWLSP OVLSET PREFIXGOOD AREAADDR IPADDR 14:52:59.112 FSPF 0 1 1 R1.00-00 OVLCLR 14:53:03.000 PRC 0 1 1 R1.00-00 PREFIXGOOD 14:53:13.265 FSPF 0 3 10 R2.00-00 NEWNODE NEWLSP PREFIXGOOD AREAADDR IPADDR 14:53:15.141 FSPF 0 3 1 R2.00-00 LINKGOOD 14:53:18.342 FSPF 0 3 1 R2.00-00 LINKGOOD 14:53:20.382 FSPF 2 3 2 R1.00-00 LINKGOOD 14:53:23.343 PRC 2 3 1 R2.00-00 ATTSET 15:07:10.261 PRC 1 3 1 R6.00-00 PREFIXGOOD 15:08:20.435 FSPF 0 3 1 PERIODIC 15:13:03.137 FSPF 2 3 2 R2.00-00 LINKBAD PREFIXBAD 15:18:43.649 PRC 1 3 1 R6.00-00 PREFIXBAD 15:24:25.955 PRC 2 3 1 R6.00-00 PREFIXGOOD 15:24:31.232 FSPF 2 3 2 R2.00-00 LINKGOOD PREFIXGOOD 15:30:08.938 FSPF 2 3 7 R2.00-00 DELNODE LSPEXPIRY ATTCLR LINKBAD PREFIXBAD AREAADDR IPADDR 15:30:12.933 FSPF 0 3 1 R1.00-00 LINKBAD 15:37:50.592 FSPF 0 3 1 R1.00-00 LINKGOOD 15:37:51.849 FSPF 2 3 7 R2.00-00 NEWNODE NEWLSP ATTSET LINKGOOD PREFIXGOOD AREAADDR IPADDR 15:43:37.432 PRC 1 3 1 R2.00-00 ATTCLR 15:51:05.980 PRC 3 3 1 R2.00-00 ATTSET 15:52:51.903 FSPF 0 3 1 PERIODIC RP/0/RP0/CPU0:R1#show isis spf-log detail Sun Oct 4 15:53:29.159 UTC IS-IS 1 Level 1 IPv4 Unicast Route Calculation Log Capacity: 210, Size: 22 Time Total Trig. Timestamp Type (ms) Nodes Count First Trigger LSP Triggers ------------ ----- ----- ----- ----- -------------------- ---------------------- --- Sun Oct 4 2026 --- 14:52:45.967 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 14:52:56.953 FSPF 0 1 7 R1.00-00 CONFIG NEWNODE NEWLSP OVLSET PREFIXGOOD AREAADDR IPADDR Delay: 10985ms (since first trigger) 10986ms (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 14:52:59.112 FSPF 0 1 1 R1.00-00 OVLCLR Delay: 50ms (since first trigger) 2159ms (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 14:53:03.000 PRC 0 1 1 R1.00-00 PREFIXGOOD Delay: 50ms (since first trigger) 3888ms (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 14:53:13.265 FSPF 0 3 10 R2.00-00 NEWNODE NEWLSP PREFIXGOOD AREAADDR IPADDR Delay: 51ms (since first trigger) 10265ms (since end of last calculation) Trigger Prefix: 2.2.2.2/32 Trigger LSPs: 2 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 14:53:15.141 FSPF 0 3 1 R2.00-00 LINKGOOD Delay: 50ms (since first trigger) 1876ms (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: 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 14:53:18.342 FSPF 0 3 1 R2.00-00 LINKGOOD Delay: 50ms (since first trigger) 3201ms (since end of last calculation) Trigger Link: R6.00 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 14:53:20.382 FSPF 2 3 2 R1.00-00 LINKGOOD Delay: 50ms (since first trigger) 2040ms (since end of last calculation) Trigger Link: R2.00 Trigger LSPs: 2 New LSP Arrivals: 0 SR uloop: No Next Wait Interval: 1600ms 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 14:53:23.343 PRC 2 3 1 R2.00-00 ATTSET Delay: 50ms (since first trigger) 2959ms (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: 2 0 ----- ----- Full Calculation: 2 0 15:07:10.261 PRC 1 3 1 R6.00-00 PREFIXGOOD Delay: 51ms (since first trigger) 826916ms (since end of last calculation) Trigger Prefix: 172.16.0.100/32 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: 1 0 ----- ----- Full Calculation: 1 0 15:08:20.435 FSPF 0 3 1 PERIODIC Delay: 50ms (since first trigger) 70173ms (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 15:13:03.137 FSPF 2 3 2 R2.00-00 LINKBAD PREFIXBAD Delay: 50ms (since first trigger) 282702ms (since end of last calculation) Trigger Link: R6.00 Trigger Prefix: 10.0.26.0/24 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 15:18:43.649 PRC 1 3 1 R6.00-00 PREFIXBAD Delay: 50ms (since first trigger) 340510ms (since end of last calculation) Trigger Prefix: 172.16.0.100/32 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: 1 0 ----- ----- Full Calculation: 1 0 15:24:25.955 PRC 2 3 1 R6.00-00 PREFIXGOOD Delay: 50ms (since first trigger) 342305ms (since end of last calculation) Trigger Prefix: 172.16.0.100/32 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 15:24:31.232 FSPF 2 3 2 R2.00-00 LINKGOOD PREFIXGOOD Delay: 50ms (since first trigger) 5275ms (since end of last calculation) Trigger Link: R6.00 Trigger Prefix: 10.0.26.0/24 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 15:30:08.938 FSPF 2 3 7 R2.00-00 DELNODE LSPEXPIRY ATTCLR LINKBAD PREFIXBAD AREAADDR IPADDR Delay: 50ms (since first trigger) 337704ms (since end of last calculation) Trigger Link: R1.00 Trigger Prefix: 2.2.2.2/32 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 15:30:12.933 FSPF 0 3 1 R1.00-00 LINKBAD Delay: 50ms (since first trigger) 3993ms (since end of last calculation) Trigger Link: R2.00 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 15:37:50.592 FSPF 0 3 1 R1.00-00 LINKGOOD Delay: 50ms (since first trigger) 457659ms (since end of last calculation) Trigger Link: R2.00 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 15:37:51.849 FSPF 2 3 7 R2.00-00 NEWNODE NEWLSP ATTSET LINKGOOD PREFIXGOOD AREAADDR IPADDR Delay: 50ms (since first trigger) 1257ms (since end of last calculation) Trigger Link: R1.00 Trigger Prefix: 2.2.2.2/32 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: 2 0 ----- ----- Full Calculation: 2 0 15:43:37.432 PRC 1 3 1 R2.00-00 ATTCLR Delay: 50ms (since first trigger) 345581ms (since end of last calculation) Trigger LSPs: 1 New LSP Arrivals: 0 SR uloop: No Next Wait Interval: 200ms 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 15:51:05.980 PRC 3 3 1 R2.00-00 ATTSET Delay: 50ms (since first trigger) 448547ms (since end of last calculation) Trigger LSPs: 1 New LSP Arrivals: 0 SR uloop: No Next Wait Interval: 200ms RIB Batches: 1 (0 critical, 0 high, 0 medium, 1 low) Timings (ms): +--Total--+ Real CPU SPT Calculation: 0 0 Route Update: 3 0 ----- ----- Full Calculation: 3 0 15:52:51.903 FSPF 0 3 1 PERIODIC Delay: 50ms (since first trigger) 105920ms (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 RP/0/RP0/CPU0:R1#show isis lsp-log Sun Oct 4 15:53:29.313 UTC IS-IS 1 Level 1 LSP Generation Log Capacity: 50, Size: 7 When Count Interface Triggers --- Sun Oct 4 2026 --- 14:52:46.046 2 CONFIG CONFIG 14:52:55.697 1 Lo0 IPUP 14:52:59.061 1 LSPDBOL 14:53:02.949 1 Gi0/0/0/0 MSD 14:53:20.331 1 Gi0/0/0/0 SABIT 15:30:12.882 2 Gi0/0/0/0 DELADJ BESTADJ 15:37:50.541 1 Gi0/0/0/0 NEWADJ RP/0/RP0/CPU0:R1#show isis statistics Sun Oct 4 15:53:29.455 UTC IS-IS 1 Packet and Event Statistics Dropped Dropped Total PDUs Sent Received On Input By Update Hello: 419 418 0 - CSNP: 2 2 - 0 PSNP: 18 6 0 0 LSP: 6 19 0 0 LSP Retransmissions: 0 LSP Checksum Errors: 0 IS-IS Update Queue: 0/3500 Total Traffic: 27 High Water Mark: 2 HWM Set: Sun 2026 Oct 04 14:53:13.213 UTC Total Drops: 0 IS-IS Input Queue: 0/4200 Total Traffic: 445 High Water Mark: 2 Total Drops: 0 Level-1 LSPs sourced (new/refresh): 9/3 Route Calculations IPv4 Unicast Total: 22 Full SPF Calculations: 15 Periodic: 2 Partial Route Calc: 7 Next Hop Calculations: 0 RP/0/RP0/CPU0:R1#show route isis Sun Oct 4 15:53:29.624 UTC i*L1 0.0.0.0/0 [115/10] via 10.0.12.2, 00:02:23, GigabitEthernet0/0/0/0 i L1 2.2.2.2/32 [115/10] via 10.0.12.2, 00:15:37, GigabitEthernet0/0/0/0 i L1 6.6.6.6/32 [115/20] via 10.0.12.2, 00:15:37, GigabitEthernet0/0/0/0 i L1 10.0.25.0/24 [115/20] via 10.0.12.2, 00:15:37, GigabitEthernet0/0/0/0 i L1 10.0.26.0/24 [115/20] via 10.0.12.2, 00:15:37, GigabitEthernet0/0/0/0 i L1 172.16.0.100/32 [115/20] via 10.0.12.2, 00:15:37, GigabitEthernet0/0/0/0 RP/0/RP0/CPU0:R1#show isis route Sun Oct 4 15:53:29.783 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 [10/115] via 10.0.12.2, GigabitEthernet0/0/0/0, R2, Weight: 0 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 6.6.6.6/32 [20/115] 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 10.0.25.0/24 [20/115] via 10.0.12.2, GigabitEthernet0/0/0/0, R2, Weight: 0 L1 10.0.26.0/24 [20/115] via 10.0.12.2, GigabitEthernet0/0/0/0, R2, Weight: 0 L1 172.16.0.100/32 [20/115] 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 15:53:30.100 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 metric 10 ! ! ! RP/0/RP0/CPU0:R1#show route 0.0.0.0/0 Sun Oct 4 15:53:30.905 UTC Routing entry for 0.0.0.0/0 Known via "isis 1", distance 115, metric 10, candidate default path, type level-1 Installed Oct 4 15:51:05.983 for 00:02:25 Routing Descriptor Blocks 10.0.12.2, from 2.2.2.2, via GigabitEthernet0/0/0/0 Route metric is 10 No advertising protos. RP/0/RP0/CPU0:R1#show isis database level 1 Sun Oct 4 15:53:31.143 UTC IS-IS 1 (Level-1) Link State Database LSPID LSP Seq Num LSP Checksum LSP Holdtime/Rcvd ATT/P/OL R1.00-00 * 0x0000000a 0xd4b9 1112 /* 0/0/0 R2.00-00 0x00000004 0xd09a 1054 /1200 1/0/0 R6.00-00 0x0000000c 0xfcf2 982 /1200 0/0/0 Total Level-1 LSP count: 3 Local Level-1 LSP count: 1 RP/0/RP0/CPU0:R1#show running-config router static Sun Oct 4 15:53:31.466 UTC router static vrf Mgmt address-family ipv4 unicast 0.0.0.0/0 10.19.0.1 ! ! ! RP/0/RP0/CPU0:R1#show route 172.16.0.100/32 Sun Oct 4 15:53:32.400 UTC Routing entry for 172.16.0.100/32 Known via "isis 1", distance 115, metric 20, type level-1 Installed Oct 4 15:37:51.850 for 00:15:40 Routing Descriptor Blocks 10.0.12.2, from 6.6.6.6, via GigabitEthernet0/0/0/0 Route metric is 20 No advertising protos. RP/0/RP0/CPU0:R1#show route 172.16.0.100/32 detail Sun Oct 4 15:53:32.702 UTC Routing entry for 172.16.0.100/32 Known via "isis 1", distance 115, metric 20, type level-1 Installed Oct 4 15:37:51.850 for 00:15:40 Routing Descriptor Blocks 10.0.12.2, from 6.6.6.6, via GigabitEthernet0/0/0/0 Route metric is 20 Label: None Tunnel ID: None Binding Label: None Extended communities count: 0 Path id:1 Path ref count:0 NHID: 0x3 (Ref: 7) Route version is 0x1 (1) No local label IP Precedence: Not Set QoS Group ID: Not Set Flow-tag: Not Set Fwd-class: Not Set Route Priority: RIB_PRIORITY_NON_RECURSIVE_MEDIUM (9) SVD Type RIB_SVD_TYPE_LOCAL Download Priority 1, Download Version 35 No advertising protos. RP/0/RP0/CPU0:R1#show cef 172.16.0.100/32 Sun Oct 4 15:53:32.861 UTC 172.16.0.100/32, version 35, internal 0x1000001 0x10 (ptr 0x8851b7f0) [1], 0x400 (0x895fe918), 0x0 (0x0) Updated Oct 4 15:37:51.856 local adjacency to GigabitEthernet0/0/0/0 Prefix Len 32, traffic index 0, precedence n/a, priority 1 gateway array (0x894972a0) reference count 5, flags 0x0, source rib (7), 0 backups [6 type 3 flags 0x8401 (0x8953aae8) ext 0x0 (0x0)] LW-LDI[type=3, refc=1, ptr=0x895fe918, sh-ldi=0x8953aae8] gateway array update type-time 1 Oct 4 15:37:51.856 LDI Update time Oct 4 15:37:51.856 LW-LDI-TS Oct 4 15:37:51.856 via 10.0.12.2/32, GigabitEthernet0/0/0/0, 7 dependencies, weight 0, class 0 [flags 0x0] path-idx 0 NHID 0x3 [0x8a848320 0x0] next hop 10.0.12.2/32 local adjacency Load distribution: 0 (refcount 6) Hash OK Interface Address 0 Y GigabitEthernet0/0/0/0 10.0.12.2 RP/0/RP0/CPU0:R1#show isis route 172.16.0.100/32 Sun Oct 4 15:53:33.210 UTC L1 172.16.0.100/32 [20/115] via 10.0.12.2, GigabitEthernet0/0/0/0, R2, Weight: 0