RP/0/RP0/CPU0:R2#show version Sun Sep 13 14:44:17.276 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 R2 uptime is 51 minutes XRd Control Plane Container RP/0/RP0/CPU0:R2#show interface description Sun Sep 13 14:44:17.420 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 R1 (10.1.2.0/24 p2p) Gi0/0/0/1 up up to R5 (10.2.5.0/24 outside IS-IS) Gi0/0/0/2 admin-down admin-down RP/0/RP0/CPU0:R2#show route Sun Sep 13 14:44:17.673 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 [115/10] via 10.1.2.1, 00:48:21, GigabitEthernet0/0/0/0 L 2.2.2.2/32 is directly connected, 00:48:32, Loopback0 i L2 3.3.3.3/32 [115/30] via 10.1.2.1, 00:48:03, GigabitEthernet0/0/0/0 i L2 4.4.4.4/32 [115/20] via 10.1.2.1, 00:48:08, GigabitEthernet0/0/0/0 C 10.1.2.0/24 is directly connected, 00:48:27, GigabitEthernet0/0/0/0 L 10.1.2.2/32 is directly connected, 00:48:27, GigabitEthernet0/0/0/0 i L2 10.1.4.0/24 [115/20] via 10.1.2.1, 00:48:21, GigabitEthernet0/0/0/0 C 10.2.5.0/24 is directly connected, 00:48:27, GigabitEthernet0/0/0/1 L 10.2.5.2/32 is directly connected, 00:48:27, GigabitEthernet0/0/0/1 i L2 10.3.4.0/24 [115/30] via 10.1.2.1, 00:48:08, GigabitEthernet0/0/0/0 S 192.168.5.0/24 [1/0] via 10.2.5.5, 00:48:27 RP/0/RP0/CPU0:R2#show route isis Sun Sep 13 14:44:17.969 UTC i L2 1.1.1.1/32 [115/10] via 10.1.2.1, 00:48:21, GigabitEthernet0/0/0/0 i L2 3.3.3.3/32 [115/30] via 10.1.2.1, 00:48:03, GigabitEthernet0/0/0/0 i L2 4.4.4.4/32 [115/20] via 10.1.2.1, 00:48:08, GigabitEthernet0/0/0/0 i L2 10.1.4.0/24 [115/20] via 10.1.2.1, 00:48:21, GigabitEthernet0/0/0/0 i L2 10.3.4.0/24 [115/30] via 10.1.2.1, 00:48:08, GigabitEthernet0/0/0/0 RP/0/RP0/CPU0:R2#show route 192.168.5.0/24 Sun Sep 13 14:44:18.246 UTC Routing entry for 192.168.5.0/24 Known via "static", distance 1, metric 0 Installed Sep 13 13:55:50.708 for 00:48:27 Routing Descriptor Blocks 10.2.5.5 Route metric is 0 No advertising protos. RP/0/RP0/CPU0:R2#show route 10.2.5.0/24 Sun Sep 13 14:44:18.475 UTC Routing entry for 10.2.5.0/24 Known via "connected", distance 0, metric 0 (connected) Installed Sep 13 13:55:50.623 for 00:48:27 Routing Descriptor Blocks directly connected, via GigabitEthernet0/0/0/1 Route metric is 0 No advertising protos. RP/0/RP0/CPU0:R2#show isis Sun Sep 13 14:44:18.651 UTC IS-IS Router: 1 System Id: 0020.0200.2002 Hostname: R2 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: 4366 Respawn count: 1 Started: Sun 2026 Sep 13 13:55:33.410 UTC Null0 ready: Sun 2026 Sep 13 13:55:34.930 UTC Protocol shutdown: No System memory state: Normal Last change: never Memory state: Normal Last change: never Last/Initial memory usage/limit: 1594831/2147483648 0% Memory state monitoring interval: 60 s Memory usage/limit: 13818236/2147483648 0% Memory usage specifics (count/bytes): Nodes: 4/1632 LSPs: 4/1672 Links: 6/7344 Prefixes: 10/9200 Nets: 7/4432 Paths: 12/1152 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 Sep 13 13:55:35.913 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) RP/0/RP0/CPU0:R2#show isis interface brief Sun Sep 13 14:44:18.938 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:R2#show isis neighbors Sun Sep 13 14:44:19.124 UTC IS-IS 1 neighbors: System Id Interface SNPA State Holdtime Type IETF-NSF R1 Gi0/0/0/0 *PtoP* Up 25 L2 Capable Total neighbor count: 1 RP/0/RP0/CPU0:R2#show isis database Sun Sep 13 14:44:19.358 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 0xe989 636 /1200 0/0/0 R2.00-00 * 0x0000000b 0x7d0e 960 /* 0/0/0 R3.00-00 0x00000009 0xfbfb 968 /1200 0/0/0 R4.00-00 0x00000009 0x72bf 898 /1200 0/0/0 Total Level-2 LSP count: 4 Local Level-2 LSP count: 1 RP/0/RP0/CPU0:R2#show isis database detail Sun Sep 13 14:44:19.536 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 0xe989 636 /1200 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: 10 IS-Extended R4.00 Metric: 0 IP-Extended 1.1.1.1/32 Metric: 10 IP-Extended 10.1.2.0/24 Metric: 10 IP-Extended 10.1.4.0/24 R2.00-00 * 0x0000000b 0x7d0e 960 /* 0/0/0 Area Address: 49.0001 LSP MTU: 1492 NLPID: 0xcc IP Address: 2.2.2.2 Hostname: R2 Metric: 10 IS-Extended R1.00 Metric: 0 IP-Extended 2.2.2.2/32 Metric: 10 IP-Extended 10.1.2.0/24 R3.00-00 0x00000009 0xfbfb 968 /1200 0/0/0 Area Address: 49.0001 LSP MTU: 1492 NLPID: 0xcc IP Address: 3.3.3.3 Hostname: R3 Metric: 10 IS-Extended R4.00 Metric: 0 IP-Extended 3.3.3.3/32 Metric: 10 IP-Extended 10.3.4.0/24 R4.00-00 0x00000009 0x72bf 898 /1200 0/0/0 Area Address: 49.0001 LSP MTU: 1492 NLPID: 0xcc IP Address: 4.4.4.4 Hostname: R4 Metric: 10 IS-Extended R1.00 Metric: 10 IS-Extended R3.00 Metric: 0 IP-Extended 4.4.4.4/32 Metric: 10 IP-Extended 10.1.4.0/24 Metric: 10 IP-Extended 10.3.4.0/24 Total Level-2 LSP count: 4 Local Level-2 LSP count: 1 RP/0/RP0/CPU0:R2#show isis database verbose Sun Sep 13 14:44:19.724 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 0xe989 636 /1200 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: 10 IS-Extended R4.00 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 10.1.2.0/24 Prefix Attribute Flags: X:0 R:0 N:0 E:0 A:0 Metric: 10 IP-Extended 10.1.4.0/24 Prefix Attribute Flags: X:0 R:0 N:0 E:0 A:0 R2.00-00 * 0x0000000b 0x7d0e 960 /* 0/0/0 Area Address: 49.0001 LSP MTU: 1492 NLPID: 0xcc IP Address: 2.2.2.2 Hostname: R2 Metric: 10 IS-Extended R1.00 Metric: 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 10.1.2.0/24 Prefix Attribute Flags: X:0 R:0 N:0 E:0 A:0 R3.00-00 0x00000009 0xfbfb 967 /1200 0/0/0 Area Address: 49.0001 LSP MTU: 1492 NLPID: 0xcc IP Address: 3.3.3.3 Hostname: R3 Metric: 10 IS-Extended R4.00 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 10.3.4.0/24 Prefix Attribute Flags: X:0 R:0 N:0 E:0 A:0 R4.00-00 0x00000009 0x72bf 898 /1200 0/0/0 Area Address: 49.0001 LSP MTU: 1492 NLPID: 0xcc IP Address: 4.4.4.4 Hostname: R4 Metric: 10 IS-Extended R1.00 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 10.1.4.0/24 Prefix Attribute Flags: X:0 R:0 N:0 E:0 A:0 Metric: 10 IP-Extended 10.3.4.0/24 Prefix Attribute Flags: X:0 R:0 N:0 E:0 A:0 Total Level-2 LSP count: 4 Local Level-2 LSP count: 1 RP/0/RP0/CPU0:R2#show isis topology Sun Sep 13 14:44:19.879 UTC IS-IS 1 paths to IPv4 Unicast (Level-2) routers System Id Metric Next-Hop Interface SNPA R1 10 R1 Gi0/0/0/0 *PtoP* R2 -- R3 30 R1 Gi0/0/0/0 *PtoP* R4 20 R1 Gi0/0/0/0 *PtoP* RP/0/RP0/CPU0:R2#show isis route Sun Sep 13 14:44:20.109 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 L2 1.1.1.1/32 [10/115] via 10.1.2.1, GigabitEthernet0/0/0/0, R1, Weight: 0 C 2.2.2.2/32 is directly connected, Loopback0 L2 3.3.3.3/32 [30/115] via 10.1.2.1, GigabitEthernet0/0/0/0, R1, Weight: 0 L2 4.4.4.4/32 [20/115] via 10.1.2.1, GigabitEthernet0/0/0/0, R1, Weight: 0 C 10.1.2.0/24 is directly connected, GigabitEthernet0/0/0/0 L2 10.1.4.0/24 [20/115] via 10.1.2.1, GigabitEthernet0/0/0/0, R1, Weight: 0 L2 10.3.4.0/24 [30/115] via 10.1.2.1, GigabitEthernet0/0/0/0, R1, Weight: 0 RP/0/RP0/CPU0:R2#show running-config router static Sun Sep 13 14:44:20.322 UTC router static address-family ipv4 unicast 192.168.5.0/24 10.2.5.5 ! vrf Mgmt address-family ipv4 unicast 0.0.0.0/0 10.19.0.1 ! ! ! RP/0/RP0/CPU0:R2#show isis adjacency-log Sun Sep 13 14:44:21.313 UTC IS-IS 1 Level 2 Adjacency Log Capacity: 100, Size: 2 When System Interface State Details --- Sun Sep 13 2026 --- 13:55:51.108 R1 Gi0/0/0/0 d -> i 13:55:51.717 R1 Gi0/0/0/0 i -> u New adjacency IPv4 Unicast Up RP/0/RP0/CPU0:R2#show isis spf-log Sun Sep 13 14:44:21.528 UTC IS-IS 1 Level 2 IPv4 Unicast Route Calculation Log Capacity: 210, Size: 19 Time Total Trig. Timestamp Type (ms) Nodes Count First Trigger LSP Triggers ------------ ----- ----- ----- ----- -------------------- ---------------------- --- Sun Sep 13 2026 --- 13:55:36.120 FSPF 0 0 2 CONFIG 13:55:47.013 FSPF 0 1 7 R2.00-00 CONFIG NEWNODE NEWLSP OVLSET PREFIXGOOD AREAADDR IPADDR 13:55:49.170 FSPF 0 1 1 R2.00-00 OVLCLR 13:55:51.775 FSPF 0 2 5 R1.00-00 NEWNODE NEWLSP PREFIXGOOD AREAADDR IPADDR 13:55:53.376 PRC 0 2 1 R2.00-00 PREFIXGOOD 13:55:56.577 FSPF 2 2 2 R2.00-00 LINKGOOD 13:56:04.238 FSPF 0 4 10 R3.00-00 NEWNODE NEWLSP PREFIXGOOD AREAADDR IPADDR 13:56:09.240 FSPF 2 4 3 R4.00-00 LINKGOOD 13:56:14.242 FSPF 1 4 1 R4.00-00 LINKGOOD 14:10:49.737 PRC 0 4 1 R2.00-00 PREFIXGOOD 14:11:14.295 FSPF 0 4 1 PERIODIC 14:22:14.027 PRC 0 4 1 R2.00-00 PREFIXGOOD 14:26:14.346 FSPF 0 4 1 PERIODIC 14:26:41.914 PRC 1 4 1 R3.00-00 PREFIXGOOD 14:31:18.559 PRC 0 4 1 R2.00-00 PREFIXBAD 14:35:46.014 PRC 0 4 1 R2.00-00 PREFIXGOOD 14:40:20.407 PRC 0 4 1 R2.00-00 PREFIXBAD 14:40:27.693 PRC 1 4 1 R3.00-00 PREFIXBAD 14:41:14.397 FSPF 0 4 1 PERIODIC RP/0/RP0/CPU0:R2#show isis lsp-log Sun Sep 13 14:44:21.827 UTC IS-IS 1 Level 2 LSP Generation Log Capacity: 50, Size: 10 When Count Interface Triggers --- Sun Sep 13 2026 --- 13:55:36.172 1 CONFIG 13:55:45.808 1 Lo0 IPUP 13:55:49.119 1 LSPDBOL 13:55:51.778 2 Gi0/0/0/0 MSD SABIT 13:55:54.670 1 Gi0/0/0/0 SABIT 14:10:49.686 1 IPEXT 14:22:13.976 1 IPEXT 14:31:18.508 5 IPEXT 14:35:45.963 5 IPEXT 14:40:20.308 3 IPEXT RP/0/RP0/CPU0:R2#show isis statistics Sun Sep 13 14:44:22.225 UTC IS-IS 1 Packet and Event Statistics Dropped Dropped Total PDUs Sent Received On Input By Update Hello: 335 333 0 - CSNP: 1 1 - 0 PSNP: 16 8 0 0 LSP: 8 18 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 Sep 13 13:56:04.187 UTC Total Drops: 0 IS-IS Input Queue: 0/4200 Total Traffic: 360 High Water Mark: 2 Total Drops: 0 Level-2 LSPs sourced (new/refresh): 12/1 Route Calculations IPv4 Unicast Total: 19 Full SPF Calculations: 11 Periodic: 3 Partial Route Calc: 8 Next Hop Calculations: 0