RP/0/RP0/CPU0:R1#show version Thu Sep 10 04:41:20.456 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 40 minutes XRd Control Plane Container RP/0/RP0/CPU0:R1#show interface description Thu Sep 10 04:41:20.550 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 (10.1.2.0/24) Gi0/0/0/1 admin-down admin-down Gi0/0/0/2 admin-down admin-down RP/0/RP0/CPU0:R1#show route Thu Sep 10 04:41:20.829 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 10.1.2.2 to network 0.0.0.0 i*L1 0.0.0.0/0 [115/10] via 10.1.2.2, 00:02:13, GigabitEthernet0/0/0/0 L 1.1.1.1/32 is directly connected, 00:37:58, Loopback0 i L1 2.2.2.2/32 [115/10] via 10.1.2.2, 00:02:14, GigabitEthernet0/0/0/0 C 10.1.2.0/24 is directly connected, 00:37:54, GigabitEthernet0/0/0/0 L 10.1.2.1/32 is directly connected, 00:37:54, GigabitEthernet0/0/0/0 RP/0/RP0/CPU0:R1#show route isis Thu Sep 10 04:41:21.031 UTC i*L1 0.0.0.0/0 [115/10] via 10.1.2.2, 00:02:13, GigabitEthernet0/0/0/0 i L1 2.2.2.2/32 [115/10] via 10.1.2.2, 00:02:14, GigabitEthernet0/0/0/0 RP/0/RP0/CPU0:R1#show isis Thu Sep 10 04:41:21.177 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: 4180 Respawn count: 1 Started: Thu 2026 Sep 10 04:03:12.710 UTC Null0 ready: Thu 2026 Sep 10 04:03:14.190 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: 13785728/2147483648 0% Memory usage specifics (count/bytes): Nodes: 2/816 LSPs: 2/840 Links: 2/2448 Prefixes: 5/1720 Nets: 4/2368 Paths: 6/576 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: Thu 2026 Sep 10 04:03:15.100 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): Narrow/Narrow 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 Thu Sep 10 04:41:21.263 UTC IS-IS 1 hostnames Level System ID Dynamic Hostname 1 * 0010.0100.1001 R1 1 0020.0200.2002 R2 RP/0/RP0/CPU0:R1#show isis interface Thu Sep 10 04:41:21.412 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: 04:41:14 (6.61 sec ago), 1497 octets Last IIH Sent: 04:41:20 (1.30 sec ago), 1497 octets Sending next P2P IIH in: 8 s IPv4 BFD: Disabled IPv6 BFD: Disabled Level-1 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: 5254.000d.b6af 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: 10.1.2.1 Global Prefix: 10.1.2.0/24 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: 04:03:28.829 Received CSNP complete: 04:03:29.007 LSP Pacing Start: 04:03:29.008 LSP fast flooding: Disabled PME Link Delays and Loss: - RP/0/RP0/CPU0:R1#show isis interface brief Thu Sep 10 04:41:21.536 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 Thu Sep 10 04:41:21.625 UTC IS-IS 1 neighbors: System Id Interface SNPA State Holdtime Type IETF-NSF R2 Gi0/0/0/0 *PtoP* Up 23 L1 Capable Total neighbor count: 1 RP/0/RP0/CPU0:R1#show isis neighbors detail Thu Sep 10 04:41:21.796 UTC IS-IS 1 neighbors: System Id Interface SNPA State Holdtime Type IETF-NSF R2 Gi0/0/0/0 *PtoP* Up 22 L1 Capable Area Address(es): 49.0001 IPv4 Address(es): 10.1.2.2* Topologies: 'IPv4 Unicast' Uptime: 00:37:53 Total neighbor count: 1 RP/0/RP0/CPU0:R1#show isis database Thu Sep 10 04:41:21.959 UTC IS-IS 1 (Level-1) Link State Database LSPID LSP Seq Num LSP Checksum LSP Holdtime/Rcvd ATT/P/OL R1.00-00 * 0x00000008 0x27f1 1055 /* 0/0/0 R2.00-00 0x0000000e 0x926d 1065 /1200 1/0/0 Total Level-1 LSP count: 2 Local Level-1 LSP count: 1 RP/0/RP0/CPU0:R1#show isis database detail Thu Sep 10 04:41:22.055 UTC IS-IS 1 (Level-1) Link State Database LSPID LSP Seq Num LSP Checksum LSP Holdtime/Rcvd ATT/P/OL R1.00-00 * 0x00000008 0x27f1 1055 /* 0/0/0 Area Address: 49.0001 LSP MTU: 1492 NLPID: 0xcc IP Address: 1.1.1.1 Hostname: R1 Metric: 0 IP 1.1.1.1/32 Metric: 10 IP 10.1.2.0/24 Metric: 10 IS R2.00 R2.00-00 0x0000000e 0x926d 1065 /1200 1/0/0 Area Address: 49.0001 LSP MTU: 1492 NLPID: 0xcc IP Address: 2.2.2.2 Hostname: R2 Metric: 0 IP 2.2.2.2/32 Metric: 10 IP 10.1.2.0/24 Metric: 10 IS R1.00 Total Level-1 LSP count: 2 Local Level-1 LSP count: 1 RP/0/RP0/CPU0:R1#show isis database verbose Thu Sep 10 04:41:22.194 UTC IS-IS 1 (Level-1) Link State Database LSPID LSP Seq Num LSP Checksum LSP Holdtime/Rcvd ATT/P/OL R1.00-00 * 0x00000008 0x27f1 1055 /* 0/0/0 Area Address: 49.0001 LSP MTU: 1492 NLPID: 0xcc IP Address: 1.1.1.1 Hostname: R1 Metric: 0 IP 1.1.1.1/32 Metric: 10 IP 10.1.2.0/24 Metric: 10 IS R2.00 R2.00-00 0x0000000e 0x926d 1065 /1200 1/0/0 Area Address: 49.0001 LSP MTU: 1492 NLPID: 0xcc IP Address: 2.2.2.2 Hostname: R2 Metric: 0 IP 2.2.2.2/32 Metric: 10 IP 10.1.2.0/24 Metric: 10 IS R1.00 Total Level-1 LSP count: 2 Local Level-1 LSP count: 1 RP/0/RP0/CPU0:R1#show isis topology Thu Sep 10 04:41:22.327 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* RP/0/RP0/CPU0:R1#show isis adjacency Thu Sep 10 04:41:22.460 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 22 00:37:53 Yes None None Total adjacency count: 1 RP/0/RP0/CPU0:R1#show isis adjacency-log Thu Sep 10 04:41:22.574 UTC IS-IS 1 Level 1 Adjacency Log Capacity: 100, Size: 2 When System Interface State Details --- Thu Sep 10 2026 --- 04:03:28.218 R2 Gi0/0/0/0 d -> i 04:03:28.830 R2 Gi0/0/0/0 i -> u New adjacency IPv4 Unicast Up RP/0/RP0/CPU0:R1#show isis spf-log Thu Sep 10 04:41:22.705 UTC IS-IS 1 Level 1 IPv4 Unicast Route Calculation Log Capacity: 210, Size: 16 Time Total Trig. Timestamp Type (ms) Nodes Count First Trigger LSP Triggers ------------ ----- ----- ----- ----- -------------------- ---------------------- --- Thu Sep 10 2026 --- 04:03:25.195 FSPF 0 1 7 R1.00-00 CONFIG NEWNODE NEWLSP OVLSET PREFIXGOOD AREAADDR IPADDR 04:03:27.340 FSPF 0 1 2 R1.00-00 OVLCLR PREFIXGOOD 04:03:30.059 FSPF 0 2 5 R2.00-00 NEWNODE NEWLSP PREFIXGOOD AREAADDR IPADDR 04:03:32.321 FSPF 0 2 1 R2.00-00 LINKGOOD 04:03:58.892 FSPF 2 2 1 R1.00-00 LINKGOOD 04:03:59.909 PRC 1 2 1 R2.00-00 ATTSET 04:18:58.946 FSPF 0 2 1 PERIODIC 04:33:49.690 FSPF 0 2 14 R1.00-00 CONFIG DELNODE LSPEXPIRY ATTCLR LINKBAD PREFIXBAD AREAADDR IPADDR 04:33:49.893 FSPF 0 2 12 R1.00-00 CONFIG NEWNODE NEWLSP ATTSET LINKGOOD PREFIXGOOD AREAADDR IPADDR 04:34:00.563 FSPF 5 2 3 R2.00-00 ATTCLR LINKGOOD PREFIXGOOD 04:34:10.746 PRC 1 2 1 R2.00-00 ATTSET 04:38:36.771 PRC 0 2 1 R2.00-00 ATTCLR 04:38:57.309 FSPF 0 2 13 R1.00-00 CONFIG DELNODE LSPEXPIRY LINKBAD PREFIXBAD AREAADDR IPADDR 04:38:57.510 FSPF 0 2 11 R1.00-00 CONFIG NEWNODE NEWLSP LINKGOOD PREFIXGOOD AREAADDR IPADDR 04:39:06.931 FSPF 2 2 2 R2.00-00 LINKGOOD PREFIXGOOD 04:39:07.733 PRC 1 2 1 R2.00-00 ATTSET RP/0/RP0/CPU0:R1#show isis lsp-log Thu Sep 10 04:41:22.831 UTC IS-IS 1 Level 1 LSP Generation Log Capacity: 50, Size: 6 When Count Interface Triggers --- Thu Sep 10 2026 --- 04:03:15.488 1 CONFIG 04:03:22.839 1 Lo0 IPUP 04:03:27.289 2 Gi0/0/0/0 LSPDBOL MSD 04:03:58.841 1 Gi0/0/0/0 SABIT 04:33:49.760 1 Lo0 IPDOWN 04:38:57.375 1 Lo0 IPDOWN RP/0/RP0/CPU0:R1#show isis statistics Thu Sep 10 04:41:22.991 UTC IS-IS 1 Packet and Event Statistics Dropped Dropped Total PDUs Sent Received On Input By Update Hello: 263 261 0 - CSNP: 1 1 - 0 PSNP: 10 6 0 0 LSP: 6 10 0 0 LSP Retransmissions: 0 LSP Checksum Errors: 0 IS-IS Update Queue: 0/3500 Total Traffic: 17 High Water Mark: 1 HWM Set: Thu 2026 Sep 10 04:03:29.007 UTC Total Drops: 0 IS-IS Input Queue: 0/4200 Total Traffic: 278 High Water Mark: 1 Total Drops: 0 Level-1 LSPs sourced (new/refresh): 8/2 Route Calculations IPv4 Unicast Total: 16 Full SPF Calculations: 12 Periodic: 1 Partial Route Calc: 4 Next Hop Calculations: 0 RP/0/RP0/CPU0:R1#show cef Thu Sep 10 04:41:23.105 UTC Prefix Next Hop Interface ------------------- ------------------- ------------------ 0.0.0.0/0 10.1.2.2/32 GigabitEthernet0/0/0/0 0.0.0.0/32 broadcast 1.1.1.1/32 receive Loopback0 2.2.2.2/32 10.1.2.2/32 GigabitEthernet0/0/0/0 10.1.2.0/24 attached GigabitEthernet0/0/0/0 10.1.2.0/32 broadcast GigabitEthernet0/0/0/0 10.1.2.1/32 receive GigabitEthernet0/0/0/0 10.1.2.2/32 10.1.2.2/32 GigabitEthernet0/0/0/0 10.1.2.255/32 broadcast 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