RP/0/RP0/CPU0:R3#show version Wed Sep 23 22:22:40.346 UTC Cisco IOS XR Software, Version 26.1.1 LNT Copyright (c) 2013-2026 by Cisco Systems, Inc. Build Information: Built By : cisco Built On : Thu Feb 26 03:41:18 UTC 2026 Build Host : iox-lnx-054 Workspace : /auto/srcarchive12/prod/26.1.1/xrd-control-plane/ws/ Version : 26.1.1 Label : 26.1.1 cisco XRd Control Plane cisco XRd-CP-C-01 processor with 248GB of memory R3 uptime is 16 minutes XRd Control Plane Container RP/0/RP0/CPU0:R3#show interface description Wed Sep 23 22:22:40.515 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 (10.0.23.0/24 p2p) Gi0/0/0/1 up up to R6 (10.0.36.0/24 p2p) Gi0/0/0/2 admin-down admin-down RP/0/RP0/CPU0:R3#show route Wed Sep 23 22:22:40.838 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 [115/70] via 10.0.36.6, 00:02:12, GigabitEthernet0/0/0/1 i L2 2.2.2.2/32 [115/10] via 10.0.23.2, 00:13:29, GigabitEthernet0/0/0/0 L 3.3.3.3/32 is directly connected, 00:13:40, Loopback0 i L2 4.4.4.4/32 [115/50] via 10.0.36.6, 00:02:12, GigabitEthernet0/0/0/1 i L2 5.5.5.5/32 [115/30] via 10.0.36.6, 00:13:14, GigabitEthernet0/0/0/1 i L2 6.6.6.6/32 [115/10] via 10.0.36.6, 00:13:29, GigabitEthernet0/0/0/1 i L2 10.0.12.0/24 [115/20] via 10.0.23.2, 00:13:29, GigabitEthernet0/0/0/0 i L2 10.0.14.0/24 [115/70] via 10.0.36.6, 00:02:12, GigabitEthernet0/0/0/1 C 10.0.23.0/24 is directly connected, 00:13:34, GigabitEthernet0/0/0/0 L 10.0.23.3/32 is directly connected, 00:13:34, GigabitEthernet0/0/0/0 C 10.0.36.0/24 is directly connected, 00:13:34, GigabitEthernet0/0/0/1 L 10.0.36.3/32 is directly connected, 00:13:34, GigabitEthernet0/0/0/1 i L2 10.0.45.0/24 [115/50] via 10.0.36.6, 00:13:14, GigabitEthernet0/0/0/1 i L2 10.0.56.0/24 [115/30] via 10.0.36.6, 00:13:29, GigabitEthernet0/0/0/1 RP/0/RP0/CPU0:R3#show route isis Wed Sep 23 22:22:41.134 UTC i L2 1.1.1.1/32 [115/70] via 10.0.36.6, 00:02:12, GigabitEthernet0/0/0/1 i L2 2.2.2.2/32 [115/10] via 10.0.23.2, 00:13:30, GigabitEthernet0/0/0/0 i L2 4.4.4.4/32 [115/50] via 10.0.36.6, 00:02:12, GigabitEthernet0/0/0/1 i L2 5.5.5.5/32 [115/30] via 10.0.36.6, 00:13:15, GigabitEthernet0/0/0/1 i L2 6.6.6.6/32 [115/10] via 10.0.36.6, 00:13:30, GigabitEthernet0/0/0/1 i L2 10.0.12.0/24 [115/20] via 10.0.23.2, 00:13:30, GigabitEthernet0/0/0/0 i L2 10.0.14.0/24 [115/70] via 10.0.36.6, 00:02:12, GigabitEthernet0/0/0/1 i L2 10.0.45.0/24 [115/50] via 10.0.36.6, 00:13:15, GigabitEthernet0/0/0/1 i L2 10.0.56.0/24 [115/30] via 10.0.36.6, 00:13:30, GigabitEthernet0/0/0/1 RP/0/RP0/CPU0:R3#show isis Wed Sep 23 22:22:41.380 UTC IS-IS Router: 1 System Id: 0030.0300.3003 Hostname: R3 IS Levels: level-2-only 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: 4379 Respawn count: 1 Started: Wed 2026 Sep 23 22:08:49.043 UTC Null0 ready: Wed 2026 Sep 23 22:08:50.536 UTC Protocol shutdown: No System memory state: Normal Last change: never Memory state: Normal Last change: never Last/Initial memory usage/limit: 1597052/2147483648 0% Memory state monitoring interval: 60 s Memory usage/limit: 13876892/2147483648 0% Memory usage specifics (count/bytes): Nodes: 6/2448 LSPs: 6/2506 Links: 10/12240 Prefixes: 18/16560 Nets: 12/7872 Paths: 22/2112 LSP MTU: 1492 LSP Full: level-1: No, level-2: No LSP fast flooding: Disabled Max LSP Tx: 1000 PSNP Delay: 500 ms PSNP interval: 50 ms Non-stop forwarding: Disabled Most recent startup mode: Cold Restart MFI LSD registered: No MFI LSD last registered: never TE connection status: Down TE connection up: never TE connection flaps: 0 XTC connection status: Down XTC connection up: never XTC connection flaps: 0 BFD connection status: Up BFD connection up: Wed 2026 Sep 23 22:08:51.537 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-2 Metric style (generate/accept): Wide/Wide Metric: 10 No protocols redistributed Distance: 115 Advertise Passive Interface Prefixes Only: No Interfaces supported by IS-IS 1: Loopback0 is running passively (passive in configuration) GigabitEthernet0/0/0/0 is running actively (active in configuration) GigabitEthernet0/0/0/1 is running actively (active in configuration) RP/0/RP0/CPU0:R3#show isis interface Wed Sep 23 22:22:41.572 UTC IS-IS 1 Interfaces Loopback0 Enabled Adjacency Formation: Disabled (Passive in IS-IS cfg) Prefix Advertisement: Enabled Bandwidth: 0 Circuit Type: level-2-only (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: 3.3.3.3/32 PME Link Delays and Loss: - GigabitEthernet0/0/0/0 Enabled Adjacency Formation: Enabled Prefix Advertisement: Enabled Bandwidth: 1000000 RSI SRLG: Not Registered Circuit Type: level-2-only (Configured: level-1-2) Media Type: P2P Circuit Number: 0 Extended Circuit Number: 5 Last IIH Received: 22:22:40 (0.98 sec ago), 1497 octets Last IIH Sent: 22:22:37 (4.55 sec ago), 1497 octets Sending next P2P IIH in: 4 s IPv4 BFD: Disabled IPv6 BFD: Disabled 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: 5254.00eb.a7fe 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: 10.0.23.3 Global Prefix: 10.0.23.0/24 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: 22:09:07.458 Received CSNP complete: 22:09:08.544 LSP Pacing Start: 22:09:08.459 LSP fast flooding: Disabled PME Link Delays and Loss: - GigabitEthernet0/0/0/1 Enabled Adjacency Formation: Enabled Prefix Advertisement: Enabled Bandwidth: 1000000 RSI SRLG: Not Registered Circuit Type: level-2-only (Configured: level-1-2) Media Type: P2P Circuit Number: 0 Extended Circuit Number: 3 Last IIH Received: 22:22:38 (3.09 sec ago), 1497 octets Last IIH Sent: 22:22:41 (0.29 sec ago), 1497 octets Sending next P2P IIH in: 7 s IPv4 BFD: Disabled IPv6 BFD: Disabled 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: 5254.00bd.8f76 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: 10.0.36.3 Global Prefix: 10.0.36.0/24 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: 22:09:07.930 Received CSNP complete: 22:09:08.549 LSP Pacing Start: 22:09:08.550 LSP fast flooding: Disabled PME Link Delays and Loss: - RP/0/RP0/CPU0:R3#show isis neighbors Wed Sep 23 22:22:41.732 UTC IS-IS 1 neighbors: System Id Interface SNPA State Holdtime Type IETF-NSF R2 Gi0/0/0/0 *PtoP* Up 28 L2 Capable R6 Gi0/0/0/1 *PtoP* Up 26 L2 Capable Total neighbor count: 2 RP/0/RP0/CPU0:R3#show isis neighbors detail Wed Sep 23 22:22:41.881 UTC IS-IS 1 neighbors: System Id Interface SNPA State Holdtime Type IETF-NSF R2 Gi0/0/0/0 *PtoP* Up 28 L2 Capable Area Address(es): 49.0001 IPv4 Address(es): 10.0.23.2* Topologies: 'IPv4 Unicast' Uptime: 00:13:34 R6 Gi0/0/0/1 *PtoP* Up 26 L2 Capable Area Address(es): 49.0001 IPv4 Address(es): 10.0.36.6* Topologies: 'IPv4 Unicast' Uptime: 00:13:34 Total neighbor count: 2 RP/0/RP0/CPU0:R3#show isis topology Wed Sep 23 22:22:42.075 UTC IS-IS 1 paths to IPv4 Unicast (Level-2) routers System Id Metric Next-Hop Interface SNPA R1 70 R6 Gi0/0/0/1 *PtoP* R2 10 R2 Gi0/0/0/0 *PtoP* R3 -- R4 50 R6 Gi0/0/0/1 *PtoP* R5 30 R6 Gi0/0/0/1 *PtoP* R6 10 R6 Gi0/0/0/1 *PtoP* RP/0/RP0/CPU0:R3#show isis database Wed Sep 23 22:22:42.243 UTC IS-IS 1 (Level-2) Link State Database LSPID LSP Seq Num LSP Checksum LSP Holdtime/Rcvd ATT/P/OL R1.00-00 0x00000009 0x2284 1067 /1200 0/0/0 R2.00-00 0x00000009 0x6048 1066 /1200 0/0/0 R3.00-00 * 0x00000007 0x3374 1101 /* 0/0/0 R4.00-00 0x00000007 0x2672 1169 /1200 0/0/0 R5.00-00 0x00000006 0x7e3d 1096 /1200 0/0/0 R6.00-00 0x00000008 0x7a75 1132 /1200 0/0/0 Total Level-2 LSP count: 6 Local Level-2 LSP count: 1 RP/0/RP0/CPU0:R3#show isis database detail Wed Sep 23 22:22:42.441 UTC IS-IS 1 (Level-2) Link State Database LSPID LSP Seq Num LSP Checksum LSP Holdtime/Rcvd ATT/P/OL R1.00-00 0x00000009 0x2284 1067 /1200 0/0/0 Area Address: 49.0001 LSP MTU: 1492 NLPID: 0xcc IP Address: 1.1.1.1 Hostname: R1 Metric: 20 IS-Extended R4.00 Metric: 0 IP-Extended 1.1.1.1/32 Metric: 10 IP-Extended 10.0.12.0/24 Metric: 20 IP-Extended 10.0.14.0/24 R2.00-00 0x00000009 0x6048 1066 /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 R3.00 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 R3.00-00 * 0x00000007 0x3374 1101 /* 0/0/0 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 R6.00 Metric: 0 IP-Extended 3.3.3.3/32 Metric: 10 IP-Extended 10.0.23.0/24 Metric: 10 IP-Extended 10.0.36.0/24 R4.00-00 0x00000007 0x2672 1169 /1200 0/0/0 Area Address: 49.0001 LSP MTU: 1492 NLPID: 0xcc IP Address: 4.4.4.4 Hostname: R4 Metric: 20 IS-Extended R1.00 Metric: 20 IS-Extended R5.00 Metric: 0 IP-Extended 4.4.4.4/32 Metric: 20 IP-Extended 10.0.14.0/24 Metric: 20 IP-Extended 10.0.45.0/24 R5.00-00 0x00000006 0x7e3d 1096 /1200 0/0/0 Area Address: 49.0001 LSP MTU: 1492 NLPID: 0xcc IP Address: 5.5.5.5 Hostname: R5 Metric: 20 IS-Extended R4.00 Metric: 20 IS-Extended R6.00 Metric: 0 IP-Extended 5.5.5.5/32 Metric: 20 IP-Extended 10.0.45.0/24 Metric: 20 IP-Extended 10.0.56.0/24 R6.00-00 0x00000008 0x7a75 1132 /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 R3.00 Metric: 20 IS-Extended R5.00 Metric: 0 IP-Extended 6.6.6.6/32 Metric: 10 IP-Extended 10.0.36.0/24 Metric: 20 IP-Extended 10.0.56.0/24 Total Level-2 LSP count: 6 Local Level-2 LSP count: 1 RP/0/RP0/CPU0:R3#show isis spf-log Wed Sep 23 22:22:42.650 UTC IS-IS 1 Level 2 IPv4 Unicast Route Calculation Log Capacity: 210, Size: 15 Time Total Trig. Timestamp Type (ms) Nodes Count First Trigger LSP Triggers ------------ ----- ----- ----- ----- -------------------- ---------------------- --- Wed Sep 23 2026 --- 22:08:51.746 FSPF 0 0 2 CONFIG 22:09:01.637 FSPF 0 1 7 R3.00-00 CONFIG NEWNODE NEWLSP OVLSET PREFIXGOOD AREAADDR IPADDR 22:09:03.794 FSPF 0 1 1 R3.00-00 OVLCLR 22:09:06.349 PRC 0 1 1 R3.00-00 PREFIXGOOD 22:09:07.949 FSPF 0 4 18 R1.00-00 NEWNODE NEWLSP LINKGOOD PREFIXGOOD AREAADDR IPADDR 22:09:11.151 FSPF 3 4 3 R6.00-00 LINKGOOD 22:09:16.154 FSPF 0 5 6 R4.00-00 NEWNODE NEWLSP LINKGOOD PREFIXGOOD AREAADDR IPADDR 22:09:21.156 FSPF 2 5 1 R1.00-00 LINKGOOD 22:09:26.159 FSPF 2 6 8 R5.00-00 NEWNODE NEWLSP LINKGOOD PREFIXGOOD AREAADDR IPADDR 22:15:04.436 FSPF 2 6 1 R2.00-00 LINKBAD 22:15:06.281 FSPF 0 6 1 R1.00-00 LINKBAD 22:15:47.565 FSPF 0 6 1 R1.00-00 LINKGOOD 22:15:47.859 FSPF 2 6 1 R2.00-00 LINKGOOD 22:20:28.580 FSPF 50 6 1 R2.00-00 LINKBAD 22:20:29.581 FSPF 0 6 1 R1.00-00 LINKBAD RP/0/RP0/CPU0:R3#show isis lsp-log Wed Sep 23 22:22:42.844 UTC IS-IS 1 Level 2 LSP Generation Log Capacity: 50, Size: 6 When Count Interface Triggers --- Wed Sep 23 2026 --- 22:08:51.887 1 CONFIG 22:09:00.330 1 Lo0 IPUP 22:09:03.743 1 LSPDBOL 22:09:06.297 1 Gi0/0/0/0 IPUP 22:09:07.898 1 Gi0/0/0/0 NEWADJ 22:09:11.099 1 Gi0/0/0/1 SABIT RP/0/RP0/CPU0:R3#show isis adjacency-log Wed Sep 23 22:22:43.047 UTC IS-IS 1 Level 2 Adjacency Log Capacity: 100, Size: 4 When System Interface State Details --- Wed Sep 23 2026 --- 22:09:06.850 R2 Gi0/0/0/0 d -> i 22:09:06.851 R6 Gi0/0/0/1 d -> i 22:09:07.459 R2 Gi0/0/0/0 i -> u New adjacency IPv4 Unicast Up 22:09:07.930 R6 Gi0/0/0/1 i -> u New adjacency IPv4 Unicast Up RP/0/RP0/CPU0:R3#show running-config router isis Wed Sep 23 22:22:43.248 UTC router isis 1 is-type level-2-only net 49.0001.0030.0300.3003.00 log adjacency changes address-family ipv4 unicast metric-style wide ! interface Loopback0 passive address-family ipv4 unicast ! ! interface GigabitEthernet0/0/0/0 point-to-point address-family ipv4 unicast metric 10 ! ! interface GigabitEthernet0/0/0/1 point-to-point address-family ipv4 unicast metric 10 ! ! !