RP/0/RP0/CPU0:R1#show version Mon Sep 14 18:35:16.698 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 12 minutes XRd Control Plane Container RP/0/RP0/CPU0:R1#show interface description Mon Sep 14 18:35:16.816 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 p2p) Gi0/0/0/1 up up to R4 (10.1.4.0/24 p2p) Gi0/0/0/2 admin-down admin-down RP/0/RP0/CPU0:R1#show route Mon Sep 14 18:35:17.162 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, 00:09:24, Loopback0 i L2 2.2.2.2/32 [115/10] via 10.1.2.2, 00:09:05, GigabitEthernet0/0/0/0 i L2 3.3.3.3/32 [115/20] via 10.1.4.4, 00:09:02, GigabitEthernet0/0/0/1 i L2 4.4.4.4/32 [115/10] via 10.1.4.4, 00:09:02, GigabitEthernet0/0/0/1 C 10.1.2.0/24 is directly connected, 00:09:18, GigabitEthernet0/0/0/0 L 10.1.2.1/32 is directly connected, 00:09:18, GigabitEthernet0/0/0/0 C 10.1.4.0/24 is directly connected, 00:09:18, GigabitEthernet0/0/0/1 L 10.1.4.1/32 is directly connected, 00:09:18, GigabitEthernet0/0/0/1 i L2 10.3.4.0/24 [115/20] via 10.1.4.4, 00:09:02, GigabitEthernet0/0/0/1 RP/0/RP0/CPU0:R1#show route isis Mon Sep 14 18:35:17.492 UTC i L2 2.2.2.2/32 [115/10] via 10.1.2.2, 00:09:05, GigabitEthernet0/0/0/0 i L2 3.3.3.3/32 [115/20] via 10.1.4.4, 00:09:03, GigabitEthernet0/0/0/1 i L2 4.4.4.4/32 [115/10] via 10.1.4.4, 00:09:03, GigabitEthernet0/0/0/1 i L2 10.3.4.0/24 [115/20] via 10.1.4.4, 00:09:03, GigabitEthernet0/0/0/1 RP/0/RP0/CPU0:R1#show route bgp Mon Sep 14 18:35:17.674 UTC % No matching routes found RP/0/RP0/CPU0:R1#show route 192.168.4.0/24 Mon Sep 14 18:35:18.077 UTC % Network not in table RP/0/RP0/CPU0:R1#show route 192.168.5.0/24 Mon Sep 14 18:35:18.315 UTC % Network not in table RP/0/RP0/CPU0:R1#show route 192.168.6.0/24 Mon Sep 14 18:35:18.503 UTC % Network not in table RP/0/RP0/CPU0:R1#show route summary Mon Sep 14 18:35:18.761 UTC Route Source Routes Backup Deleted Memory(bytes) connected 2 1 0 600 local 3 0 0 600 application fib_mgr 0 0 0 0 isis 1 4 2 0 1200 dagr 0 0 0 0 Total 9 3 0 2400 RP/0/RP0/CPU0:R1#show isis Mon Sep 14 18:35:18.994 UTC IS-IS Router: 1 System Id: 0010.0100.1001 Hostname: R1 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: 4389 Respawn count: 1 Started: Mon 2026 Sep 14 18:25:41.567 UTC Null0 ready: Mon 2026 Sep 14 18:25:43.162 UTC Protocol shutdown: No System memory state: Normal Last change: never Memory state: Normal Last change: never Last/Initial memory usage/limit: 1597129/2147483648 0% Memory state monitoring interval: 60 s Memory usage/limit: 13845686/2147483648 0% Memory usage specifics (count/bytes): Nodes: 4/1632 LSPs: 4/1674 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: Mon 2026 Sep 14 18:25:44.178 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:R1#show isis interface brief Mon Sep 14 18:35:19.219 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 - - Gi0/0/0/1 Yes - 1 1/1 1/1 Up 1497 - - RP/0/RP0/CPU0:R1#show isis neighbors Mon Sep 14 18:35:19.472 UTC IS-IS 1 neighbors: System Id Interface SNPA State Holdtime Type IETF-NSF R2 Gi0/0/0/0 *PtoP* Up 24 L2 Capable R4 Gi0/0/0/1 *PtoP* Up 23 L2 Capable Total neighbor count: 2 RP/0/RP0/CPU0:R1#show isis database Mon Sep 14 18:35:19.650 UTC IS-IS 1 (Level-2) Link State Database LSPID LSP Seq Num LSP Checksum LSP Holdtime/Rcvd ATT/P/OL R1.00-00 * 0x00000006 0xef86 654 /* 0/0/0 R2.00-00 0x00000004 0x8b07 651 /1200 0/0/0 R3.00-00 0x00000004 0x06f6 654 /1200 0/0/0 R4.00-00 0x00000005 0x7abb 654 /1200 0/0/0 Total Level-2 LSP count: 4 Local Level-2 LSP count: 1 RP/0/RP0/CPU0:R1#show isis database detail Mon Sep 14 18:35:19.808 UTC IS-IS 1 (Level-2) Link State Database LSPID LSP Seq Num LSP Checksum LSP Holdtime/Rcvd ATT/P/OL R1.00-00 * 0x00000006 0xef86 654 /* 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 0x00000004 0x8b07 651 /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 R1.00 Metric: 0 IP-Extended 2.2.2.2/32 Metric: 10 IP-Extended 10.1.2.0/24 R3.00-00 0x00000004 0x06f6 654 /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 0x00000005 0x7abb 654 /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:R1#show isis database verbose Mon Sep 14 18:35:20.072 UTC IS-IS 1 (Level-2) Link State Database LSPID LSP Seq Num LSP Checksum LSP Holdtime/Rcvd ATT/P/OL R1.00-00 * 0x00000006 0xef86 654 /* 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 0x00000004 0x8b07 651 /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 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 0x00000004 0x06f6 654 /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 0x00000005 0x7abb 653 /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:R1#show isis topology Mon Sep 14 18:35:20.318 UTC IS-IS 1 paths to IPv4 Unicast (Level-2) routers System Id Metric Next-Hop Interface SNPA R1 -- R2 10 R2 Gi0/0/0/0 *PtoP* R3 20 R4 Gi0/0/0/1 *PtoP* R4 10 R4 Gi0/0/0/1 *PtoP* RP/0/RP0/CPU0:R1#show isis route Mon Sep 14 18:35:20.531 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 L2 2.2.2.2/32 [10/115] via 10.1.2.2, GigabitEthernet0/0/0/0, R2, Weight: 0 L2 3.3.3.3/32 [20/115] via 10.1.4.4, GigabitEthernet0/0/0/1, R4, Weight: 0 L2 4.4.4.4/32 [10/115] via 10.1.4.4, GigabitEthernet0/0/0/1, R4, Weight: 0 C 10.1.2.0/24 is directly connected, GigabitEthernet0/0/0/0 C 10.1.4.0/24 is directly connected, GigabitEthernet0/0/0/1 L2 10.3.4.0/24 [20/115] via 10.1.4.4, GigabitEthernet0/0/0/1, R4, Weight: 0 RP/0/RP0/CPU0:R1#show bgp Mon Sep 14 18:35:20.760 UTC % BGP instance 'default' not active RP/0/RP0/CPU0:R1#show bgp summary Mon Sep 14 18:35:21.075 UTC % BGP instance 'default' not active RP/0/RP0/CPU0:R1#show bgp neighbors Mon Sep 14 18:35:21.271 UTC % BGP instance 'default' not active RP/0/RP0/CPU0:R1#show running-config router bgp Mon Sep 14 18:35:21.431 UTC % No such configuration item(s) RP/0/RP0/CPU0:R1#show isis adjacency-log Mon Sep 14 18:35:22.477 UTC IS-IS 1 Level 2 Adjacency Log Capacity: 100, Size: 4 When System Interface State Details --- Mon Sep 14 2026 --- 18:26:07.785 R2 Gi0/0/0/0 d -> i 18:26:08.396 R2 Gi0/0/0/0 i -> u New adjacency IPv4 Unicast Up 18:26:10.108 R4 Gi0/0/0/1 d -> i 18:26:10.719 R4 Gi0/0/0/1 i -> u New adjacency IPv4 Unicast Up RP/0/RP0/CPU0:R1#show isis spf-log Mon Sep 14 18:35:22.772 UTC IS-IS 1 Level 2 IPv4 Unicast Route Calculation Log Capacity: 210, Size: 9 Time Total Trig. Timestamp Type (ms) Nodes Count First Trigger LSP Triggers ------------ ----- ----- ----- ----- -------------------- ---------------------- --- Mon Sep 14 2026 --- 18:25:44.471 FSPF 0 0 2 CONFIG 18:25:54.362 FSPF 0 1 7 R1.00-00 CONFIG NEWNODE NEWLSP OVLSET PREFIXGOOD AREAADDR IPADDR 18:25:56.431 FSPF 0 1 1 R1.00-00 OVLCLR 18:25:59.473 PRC 0 1 1 R1.00-00 PREFIXGOOD 18:26:09.754 FSPF 0 2 5 R2.00-00 NEWNODE NEWLSP PREFIXGOOD AREAADDR IPADDR 18:26:11.632 FSPF 0 3 1 R2.00-00 LINKGOOD 18:26:12.077 FSPF 2 4 11 R3.00-00 NEWNODE NEWLSP LINKGOOD PREFIXGOOD AREAADDR IPADDR 18:26:12.880 FSPF 0 4 1 R4.00-00 LINKGOOD 18:26:14.482 FSPF 2 4 3 R4.00-00 LINKGOOD RP/0/RP0/CPU0:R1#show isis lsp-log Mon Sep 14 18:35:23.177 UTC IS-IS 1 Level 2 LSP Generation Log Capacity: 50, Size: 6 When Count Interface Triggers --- Mon Sep 14 2026 --- 18:25:44.526 1 CONFIG 18:25:53.059 1 Lo0 IPUP 18:25:56.380 1 LSPDBOL 18:25:59.422 2 Gi0/0/0/1 IPUP MSD 18:26:12.073 1 Gi0/0/0/0 SABIT 18:26:14.396 1 Gi0/0/0/1 SABIT RP/0/RP0/CPU0:R1#show isis statistics Mon Sep 14 18:35:23.573 UTC IS-IS 1 Packet and Event Statistics Dropped Dropped Total PDUs Sent Received On Input By Update Hello: 133 135 0 - CSNP: 2 2 - 0 PSNP: 5 6 0 0 LSP: 13 7 0 0 LSP Retransmissions: 0 LSP Checksum Errors: 0 IS-IS Update Queue: 0/3500 Total Traffic: 15 High Water Mark: 2 HWM Set: Mon 2026 Sep 14 18:26:12.026 UTC Total Drops: 0 IS-IS Input Queue: 0/4200 Total Traffic: 150 High Water Mark: 2 Total Drops: 0 Level-2 LSPs sourced (new/refresh): 8/0 Route Calculations IPv4 Unicast Total: 9 Full SPF Calculations: 8 Periodic: 0 Partial Route Calc: 1 Next Hop Calculations: 0