display isis spf-tree
Function
The display isis spf-tree command displays the topology of the SPT that is generated by IS-IS.
Parameters
| Parameter | Description | Value |
|---|---|---|
| systemid systemid |
Displays the SPT topology of the system with a specified system ID or pseudo node ID. |
The value is in the format of XXXX.XXXX.XXXX[.XX]. |
| level-1 |
Displays the SPT topology of Level-1. |
- |
| level-2 |
Displays the SPT topology of Level-2. |
- |
| ipv6 |
Displays the SPT topology of IPv6. |
- |
| topology topology-name |
Specifies the name of a topology instance. |
The value is a string of 1 to 31 case-sensitive characters without spaces. The value must start with a letter (a to z or A to Z, case sensitive) and can contain numbers, hyphens (-), or underlines (_). When double quotation marks are used around the string, spaces are allowed in the string. |
| verbose |
Displays detailed information of the SPT topology. |
- |
| process-id |
Displays the SPT topology of a specified IS-IS process. |
The value is an integer ranging from 1 to 4294967295. |
| flex-algo flex-algo-id |
Specifies the flexible algorithm identifier. |
The value is an integer ranging from 128 to 255. |
Usage Guidelines
Usage Scenario
When an error occurs in the route calculation, run the display isis spf-tree command to check whether the IS-IS topology information is correct.
Precautions
If no Flex-Algo is specified, the topology information of the SPF tree with the SPF algorithm is displayed.
If a Flex-Algo is specified but no Flex-Algo ID is specified, the topology information of all SPF trees with Flex-Algos is displayed.Example
The actual command output varies according to the device. The command output here is only an example.
# Display detailed information about the SPT.
<HUAWEI> display isis spf-tree verbose Shortest Path Tree for ISIS(100) ------------------------------ ISIS(100) Level-1 Shortest Path Tree ------------------------------------ 1111.1111.1111.00 Distance : 0 Distance-URT : 0 IPv6-Distance-URT : 0 Flags : SPT/V4_Islt/V6_Islt IPv4 Nexthops-URT : 0 SR Nexthops : 0 IPv6 Nexthops : 0 Neighbors: 0 (Children:0 Parents:0 Others:0) ISIS(100) Level-2 Shortest Path Tree ------------------------------------ 1111.1111.1111.00 Distance : 0 Distance-URT : 0 IPv6-Distance-URT : 0 Flags : SPT/V4_Islt/V6_Islt IPv4 Nexthops-URT : 0 SR Nexthops : 0 IPv6 Nexthops : 0 Neighbors: 2 (Children:2 Parents:0 Others:0) (1)2222.2222.2222.02 Cost : 10 Flags : Child (2)4444.4444.4444.01 Cost : 10 Flags : Child 2222.2222.2222.00 Distance : 10 Distance-URT : 10 IPv6-Distance-URT : 10 Flags : SPT/V6_Islt SegmentRouting : Enable SRGB : {17000, 17500} IPv4 Nexthops-URT : 1 (1) 10.0.0.2 IF:GE0/1/0 NBR:2222.2222.2222.00 (B) 10.0.0.4 IF:GE0/1/0 NBR:4444.4444.4444.00 TYPE:TI-LOOP-FREE PROTECT:LINK SR Nexthops : 1 (1) 10.0.0.2 IF:GE0/1/0 NBR:2222.2222.2222.00 PHPFlag:true PathSrgb:501 MapFlag:false (B) 10.0.0.4 IF:GE0/1/0 NBR:4444.4444.4444.00 TYPE:TI-LOOP-FREE PROTECT:LINK IPv6 Nexthops : 0 Neighbors: 2 (Children:1 Parents:1 Others:0) (1)2222.2222.2222.02 Cost : 10 Flags : Parent (2)3333.3333.3333.01 Cost : 10 Flags : Child 2222.2222.2222.02 Distance : 10 Distance-URT : 10 IPv6-Distance-URT : 10 Flags : SPT/V4_Islt/V6_Islt/Direct IPv4 Nexthops-URT : 0 SR Nexthops : 0 IPv6 Nexthops : 0 Neighbors: 2 (Children:1 Parents:1 Others:0) (1)1111.1111.1111.00 Cost : 0 Flags : Parent (2)2222.2222.2222.00 Cost : 0 Flags : Child 3333.3333.3333.00 Distance : 20 Distance-URT : 20 IPv6-Distance-URT : 20 Flags : SPT/V6_Islt SegmentRouting : Enable SRGB : {18000, 18500} IPv4 Nexthops-URT : 1 (1) 10.0.0.2 IF:GE0/1/0 NBR:2222.2222.2222.00 (B) 10.0.0.4 IF:GE0/1/0 NBR:4444.4444.4444.00 TYPE:TI-LOOP-FREE PROTECT:LINK-NODE SR Nexthops : 1 (1) 10.0.0.2 IF:GE0/1/0 NBR:2222.2222.2222.00 PHPFlag:false PathSrgb:501 MapFlag:false (B) 10.0.0.4 IF:GE0/1/0 NBR:4444.4444.4444.00 TYPE:TI-LOOP-FREE PROTECT:LINK-NODE IPv6 Nexthops : 0 Neighbors: 2 (Children:0 Parents:1 Others:1) (1)3333.3333.3333.01 Cost : 10 Flags : Parent (2)5555.5555.5555.01 Cost : 200 Flags : Other 3333.3333.3333.01 Distance : 20 Distance-URT : 20 IPv6-Distance-URT : 20 Flags : SPT/V6_Islt IPv4 Nexthops-URT : 1 (1) 10.0.0.2 IF:GE0/1/0 NBR:2222.2222.2222.00 SR Nexthops : 1 (1) 10.0.0.2 IF:GE0/1/0 NBR:2222.2222.2222.00 PHPFlag:false PathSrgb:501 MapFlag:false IPv6 Nexthops : 0 Neighbors: 2 (Children:1 Parents:1 Others:0) (1)2222.2222.2222.00 Cost : 0 Flags : Parent (2)3333.3333.3333.00 Cost : 0 Flags : Child 4444.4444.4444.00 Distance : 10 Distance-URT : 10 IPv6-Distance-URT : 10 Flags : SPT/V6_Islt SegmentRouting : Enable SRGB : {20000, 25000} IPv4 Nexthops-URT : 1 (1) 10.0.0.4 IF:GE0/1/0 NBR:4444.4444.4444.00 (B) 10.0.0.2 IF:GE0/1/0 NBR:2222.2222.2222.00 TYPE:TI-LOOP-FREE PROTECT:LINK SR Nexthops : 1 (1) 10.0.0.4 IF:GE0/1/0 NBR:4444.4444.4444.00 PHPFlag:true PathSrgb:5001 MapFlag:false (B) 10.0.0.2 IF:GE0/1/0 NBR:2222.2222.2222.00 TYPE:TI-LOOP-FREE PROTECT:LINK IPv6 Nexthops : 0 Neighbors: 2 (Children:1 Parents:1 Others:0) (1)4444.4444.4444.01 Cost : 10 Flags : Parent (2)5555.5555.5555.02 Cost : 10 Flags : Child 4444.4444.4444.01 Distance : 10 Distance-URT : 10 IPv6-Distance-URT : 10 Flags : SPT/V4_Islt/V6_Islt/Direct IPv4 Nexthops-URT : 0 SR Nexthops : 0 IPv6 Nexthops : 0 Neighbors: 2 (Children:1 Parents:1 Others:0) (1)1111.1111.1111.00 Cost : 0 Flags : Parent (2)4444.4444.4444.00 Cost : 0 Flags : Child 5555.5555.5555.00 Distance : 20 Distance-URT : 20 IPv6-Distance-URT : 20 Flags : SPT/V6_Islt SegmentRouting : Enable SRGB : {19000, 19500} IPv4 Nexthops-URT : 1 (1) 10.0.0.4 IF:GE0/1/0 NBR:4444.4444.4444.00 (B) 10.0.0.2 IF:GE0/1/0 NBR:2222.2222.2222.00 TYPE:TI-LOOP-FREE PROTECT:LINK-NODE SR Nexthops : 1 (1) 10.0.0.4 IF:GE0/1/0 NBR:4444.4444.4444.00 PHPFlag:false PathSrgb:501 MapFlag:false (B) 10.0.0.2 IF:GE0/1/0 NBR:2222.2222.2222.00 TYPE:TI-LOOP-FREE PROTECT:LINK-NODE IPv6 Nexthops : 0 Neighbors: 2 (Children:1 Parents:1 Others:0) (1)5555.5555.5555.01 Cost : 10 Flags : Child (2)5555.5555.5555.02 Cost : 10 Flags : Parent 5555.5555.5555.01 Distance : 30 Distance-URT : 30 IPv6-Distance-URT : 30 Flags : SPT/V6_Islt IPv4 Nexthops-URT : 1 (1) 10.0.0.4 IF:GE0/1/0 NBR:4444.4444.4444.00 SR Nexthops : 1 (1) 10.0.0.4 IF:GE0/1/0 NBR:4444.4444.4444.00 PHPFlag:false PathSrgb:501 MapFlag:false IPv6 Nexthops : 0 Neighbors: 2 (Children:0 Parents:1 Others:1) (1)3333.3333.3333.00 Cost : 0 Flags : Other (2)5555.5555.5555.00 Cost : 0 Flags : Parent 5555.5555.5555.02 Distance : 20 Distance-URT : 20 IPv6-Distance-URT : 20 Flags : SPT/V6_Islt IPv4 Nexthops-URT : 1 (1) 10.0.0.4 IF:GE0/1/0 NBR:4444.4444.4444.00 SR Nexthops : 1 (1) 10.0.0.4 IF:GE0/1/0 NBR:4444.4444.4444.00 PHPFlag:false PathSrgb:5001 MapFlag:false IPv6 Nexthops : 0 Neighbors: 2 (Children:1 Parents:1 Others:0) (1)4444.4444.4444.00 Cost : 0 Flags : Parent (2)5555.5555.5555.00 Cost : 0 Flags : Child
# Display detailed information about all IPv4 Flex-Algo SPF trees.
<HUAWEI> display isis spf-tree flex-algo verbose Shortest Path Tree for ISIS(1) ------------------------------ ISIS(1) Level-1 Flex-Algo(128) Shortest Path Tree ------------------------------------------------- 0000.0000.0001.00 Distance : 0 SRGB : {16000, 23999} IPv4 Nexthops : 0 Neighbors: 4 (Children:4 Parents:0 Others:0) (1)0000.0000.0006.01 Cost : 10 Flags : Child (2)0000.0000.0001.04 Cost : 10 Flags : Child (3)0000.0000.0002.03 Cost : 20 Flags : Child (4)0000.0000.0006.02 Cost : 10 Flags : Child 0000.0000.0002.00 Distance : 20 SRGB : {16000, 23999} IPv4 Nexthops : 1 (1) 172.16.1.2 IF:GE0/1/19 NBR:0000.0000.0002.00 PHPFlag:true PathSrgb:8000 MapFlag:false Neighbors: 4 (Children:3 Parents:1 Others:0) (1)0000.0000.0003.02 Cost : 10 Flags : Child (2)0000.0000.0003.01 Cost : 10 Flags : Child (3)0000.0000.0002.03 Cost : -- Flags : Parent (4)0000.0000.0002.04 Cost : 10 Flags : Child 0000.0000.0003.00 Distance : 30 SRGB : {16000, 23999} IPv4 Nexthops : 1 (1) 172.16.1.2 IF:GE0/1/19 NBR:0000.0000.0002.00 PHPFlag:false PathSrgb:8000 MapFlag:false Neighbors: 2 (Children:0 Parents:2 Others:0) (1)0000.0000.0003.02 Cost : -- Flags : Parent (2)0000.0000.0003.01 Cost : -- Flags : Parent 0000.0000.0005.00 Distance : 10 SRGB : {24000, 25000} IPv4 Nexthops : 1 (1) 172.22.1.2 IF:GE0/1/22.1 NBR:0000.0000.0005.00 PHPFlag:true PathSrgb:1001 MapFlag:false Neighbors: 2 (Children:1 Parents:1 Others:0) (1)0000.0000.0001.04 Cost : -- Flags : Parent (2)0000.0000.0001.06 Cost : 10 Flags : Child 0000.0000.0006.00 Distance : 10 SRGB : {28000, 30000} IPv4 Nexthops : 2 (1) 172.25.1.2 IF:GE0/1/22 NBR:0000.0000.0006.00 PHPFlag:true PathSrgb:2001 MapFlag:false (2) 172.23.1.2 IF:GE0/1/22.2 NBR:0000.0000.0006.00 PHPFlag:true PathSrgb:2001 MapFlag:false Neighbors: 2 (Children:0 Parents:2 Others:0) (1)0000.0000.0006.01 Cost : -- Flags : Parent (2)0000.0000.0006.02 Cost : -- Flags : Parent 0000.0000.0001.04 Distance : 10 IPv4 Nexthops : 0 Neighbors: 2 (Children:1 Parents:1 Others:0) (1)0000.0000.0001.00 Cost : -- Flags : Parent (2)0000.0000.0005.00 Cost : 0 Flags : Child 0000.0000.0001.06 Distance : 20 IPv4 Nexthops : 0 Neighbors: 1 (Children:0 Parents:1 Others:0) (1)0000.0000.0005.00 Cost : -- Flags : Parent 0000.0000.0002.03 Distance : 20 IPv4 Nexthops : 0 Neighbors: 2 (Children:1 Parents:1 Others:0) (1)0000.0000.0001.00 Cost : -- Flags : Parent (2)0000.0000.0002.00 Cost : 0 Flags : Child 0000.0000.0002.04 Distance : 30 IPv4 Nexthops : 0 Neighbors: 1 (Children:0 Parents:1 Others:0) (1)0000.0000.0002.00 Cost : -- Flags : Parent 0000.0000.0003.01 Distance : 30 IPv4 Nexthops : 0 Neighbors: 2 (Children:1 Parents:1 Others:0) (1)0000.0000.0002.00 Cost : -- Flags : Parent (2)0000.0000.0003.00 Cost : 0 Flags : Child 0000.0000.0003.02 Distance : 30 IPv4 Nexthops : 0 Neighbors: 2 (Children:1 Parents:1 Others:0) (1)0000.0000.0002.00 Cost : -- Flags : Parent (2)0000.0000.0003.00 Cost : 0 Flags : Child 0000.0000.0006.01 Distance : 10 IPv4 Nexthops : 0 Neighbors: 2 (Children:1 Parents:1 Others:0) (1)0000.0000.0001.00 Cost : -- Flags : Parent (2)0000.0000.0006.00 Cost : 0 Flags : Child 0000.0000.0006.02 Distance : 10 IPv4 Nexthops : 0 Neighbors: 2 (Children:1 Parents:1 Others:0) (1)0000.0000.0001.00 Cost : -- Flags : Parent (2)0000.0000.0006.00 Cost : 0 Flags : Child ISIS(1) Level-1 Flex-Algo(129) Shortest Path Tree ------------------------------------------------- 0000.0000.0001.00 Distance : 0 SRGB : {16000, 23999} IPv4 Nexthops : 0 Neighbors: 5 (Children:5 Parents:0 Others:0) (1)0000.0000.0002.04 Cost : 20 Flags : Child (2)0000.0000.0006.01 Cost : 10 Flags : Child (3)0000.0000.0006.02 Cost : 10 Flags : Child (4)0000.0000.0001.04 Cost : 10 Flags : Child (5)0000.0000.0002.03 Cost : 20 Flags : Child 0000.0000.0002.00 Distance : 20 SRGB : {16000, 23999} IPv4 Nexthops : 2 (1) 172.18.1.2 IF:Eth0/1/20 NBR:0000.0000.0002.00 PHPFlag:true PathSrgb:8000 MapFlag:false (2) 172.16.1.2 IF:Eth0/1/19 NBR:0000.0000.0002.00 PHPFlag:true PathSrgb:8000 MapFlag:false Neighbors: 3 (Children:1 Parents:2 Others:0) (1)0000.0000.0002.04 Cost : -- Flags : Parent (2)0000.0000.0003.01 Cost : 10 Flags : Child (3)0000.0000.0002.03 Cost : -- Flags : Parent 0000.0000.0003.00 Distance : 30 SRGB : {16000, 23999} IPv4 Nexthops : 2 (1) 172.18.1.2 IF:GE0/1/20 NBR:0000.0000.0002.00 PHPFlag:false PathSrgb:8000 MapFlag:false (2) 172.16.1.2 IF:GE0/1/19 NBR:0000.0000.0002.00 PHPFlag:false PathSrgb:8000 MapFlag:false Neighbors: 1 (Children:0 Parents:1 Others:0) (1)0000.0000.0003.01 Cost : -- Flags : Parent 0000.0000.0006.00 Distance : 10 SRGB : {28000, 30000} IPv4 Nexthops : 2 (1) 172.23.1.2 IF:GE0/1/22.2 NBR:0000.0000.0006.00 PHPFlag:true PathSrgb:2001 MapFlag:false (2) 172.25.1.2 IF:GE0/1/22 NBR:0000.0000.0006.00 PHPFlag:true PathSrgb:2001 MapFlag:false Neighbors: 2 (Children:0 Parents:2 Others:0) (1)0000.0000.0006.01 Cost : -- Flags : Parent (2)0000.0000.0006.02 Cost : -- Flags : Parent 0000.0000.0001.04 Distance : 10 IPv4 Nexthops : 0 Neighbors: 1 (Children:0 Parents:1 Others:0) (1)0000.0000.0001.00 Cost : -- Flags : Parent 0000.0000.0002.03 Distance : 20 IPv4 Nexthops : 0 Neighbors: 2 (Children:1 Parents:1 Others:0) (1)0000.0000.0002.00 Cost : 0 Flags : Child (2)0000.0000.0001.00 Cost : -- Flags : Parent 0000.0000.0002.04 Distance : 20 IPv4 Nexthops : 0 Neighbors: 2 (Children:1 Parents:1 Others:0) (1)0000.0000.0002.00 Cost : 0 Flags : Child (2)0000.0000.0001.00 Cost : -- Flags : Parent 0000.0000.0003.01 Distance : 30 IPv4 Nexthops : 0 Neighbors: 2 (Children:1 Parents:1 Others:0) (1)0000.0000.0002.00 Cost : -- Flags : Parent (2)0000.0000.0003.00 Cost : 0 Flags : Child 0000.0000.0006.01 Distance : 10 IPv4 Nexthops : 0 Neighbors: 2 (Children:1 Parents:1 Others:0) (1)0000.0000.0001.00 Cost : -- Flags : Parent (2)0000.0000.0006.00 Cost : 0 Flags : Child 0000.0000.0006.02 Distance : 10 IPv4 Nexthops : 0 Neighbors: 2 (Children:1 Parents:1 Others:0) (1)0000.0000.0001.00 Cost : -- Flags : Parent (2)0000.0000.0006.00 Cost : 0 Flags : Child ISIS(1) Level-1 Flex-Algo(130) Shortest Path Tree ------------------------------------------------- 0000.0000.0001.00 Distance : 0 SRGB : {16000, 23999} IPv4 Nexthops : 0 Neighbors: 4 (Children:4 Parents:0 Others:0) (1)0000.0000.0006.01 Cost : 10 Flags : Child (2)0000.0000.0002.03 Cost : 20 Flags : Child (3)0000.0000.0006.02 Cost : 10 Flags : Child (4)0000.0000.0001.04 Cost : 10 Flags : Child 0000.0000.0002.00 Distance : 20 SRGB : {16000, 23999} IPv4 Nexthops : 1 (1) 172.16.1.2 IF:GE0/1/19 NBR:0000.0000.0002.00 PHPFlag:true PathSrgb:8000 MapFlag:false Neighbors: 3 (Children:2 Parents:1 Others:0) (1)0000.0000.0002.03 Cost : -- Flags : Parent (2)0000.0000.0003.01 Cost : 10 Flags : Child (3)0000.0000.0002.04 Cost : 10 Flags : Child 0000.0000.0003.00 Distance : 30 SRGB : {16000, 23999} IPv4 Nexthops : 1 (1) 172.16.1.2 IF:GE0/1/19 NBR:0000.0000.0002.00 PHPFlag:false PathSrgb:8000 MapFlag:false Neighbors: 1 (Children:0 Parents:1 Others:0) (1)0000.0000.0003.01 Cost : -- Flags : Parent 0000.0000.0001.04 Distance : 10 IPv4 Nexthops : 0 Neighbors: 1 (Children:0 Parents:1 Others:0) (1)0000.0000.0001.00 Cost : -- Flags : Parent 0000.0000.0002.03 Distance : 20 IPv4 Nexthops : 0 Neighbors: 2 (Children:1 Parents:1 Others:0) (1)0000.0000.0002.00 Cost : 0 Flags : Child (2)0000.0000.0001.00 Cost : -- Flags : Parent 0000.0000.0002.04 Distance : 30 IPv4 Nexthops : 0 Neighbors: 1 (Children:0 Parents:1 Others:0) (1)0000.0000.0002.00 Cost : -- Flags : Parent 0000.0000.0003.01 Distance : 30 IPv4 Nexthops : 0 Neighbors: 2 (Children:1 Parents:1 Others:0) (1)0000.0000.0002.00 Cost : -- Flags : Parent (2)0000.0000.0003.00 Cost : 0 Flags : Child 0000.0000.0006.01 Distance : 10 IPv4 Nexthops : 0 Neighbors: 1 (Children:0 Parents:1 Others:0) (1)0000.0000.0001.00 Cost : -- Flags : Parent 0000.0000.0006.02 Distance : 10 IPv4 Nexthops : 0 Neighbors: 1 (Children:0 Parents:1 Others:0) (1)0000.0000.0001.00 Cost : -- Flags : Parent
# Display detailed information about the SPF tree of IPv4 Flex-Algo 128.
<HUAWEI> display isis spf-tree flex-algo 128 verbose Shortest Path Tree for ISIS(1) ------------------------------ ISIS(1) Level-1 Flex-Algo(128) Shortest Path Tree ------------------------------------------------- 0000.0000.0001.00 Distance : 0 SRGB : {16000, 23999} IPv4 Nexthops : 0 Neighbors: 4 (Children:4 Parents:0 Others:0) (1)0000.0000.0006.01 Cost : 10 Flags : Child (2)0000.0000.0001.04 Cost : 10 Flags : Child (3)0000.0000.0002.03 Cost : 20 Flags : Child (4)0000.0000.0006.02 Cost : 10 Flags : Child 0000.0000.0002.00 Distance : 20 SRGB : {16000, 23999} IPv4 Nexthops : 1 (1) 172.16.1.2 IF:GE0/1/19 NBR:0000.0000.0002.00 PHPFlag:true PathSrgb:8000 MapFlag:false Neighbors: 4 (Children:3 Parents:1 Others:0) (1)0000.0000.0003.02 Cost : 10 Flags : Child (2)0000.0000.0003.01 Cost : 10 Flags : Child (3)0000.0000.0002.03 Cost : -- Flags : Parent (4)0000.0000.0002.04 Cost : 10 Flags : Child 0000.0000.0003.00 Distance : 30 SRGB : {16000, 23999} IPv4 Nexthops : 1 (1) 172.16.1.2 IF:GE0/1/19 NBR:0000.0000.0002.00 PHPFlag:false PathSrgb:8000 MapFlag:false Neighbors: 2 (Children:0 Parents:2 Others:0) (1)0000.0000.0003.02 Cost : -- Flags : Parent (2)0000.0000.0003.01 Cost : -- Flags : Parent 0000.0000.0005.00 Distance : 10 SRGB : {24000, 25000} IPv4 Nexthops : 1 (1) 172.22.1.2 IF:GE0/1/22.1 NBR:0000.0000.0005.00 PHPFlag:true PathSrgb:1001 MapFlag:false Neighbors: 2 (Children:1 Parents:1 Others:0) (1)0000.0000.0001.04 Cost : -- Flags : Parent (2)0000.0000.0001.06 Cost : 10 Flags : Child 0000.0000.0006.00 Distance : 10 SRGB : {28000, 30000} IPv4 Nexthops : 2 (1) 172.25.1.2 IF:GE0/1/22 NBR:0000.0000.0006.00 PHPFlag:true PathSrgb:2001 MapFlag:false (2) 172.23.1.2 IF:GE0/1/22.2 NBR:0000.0000.0006.00 PHPFlag:true PathSrgb:2001 MapFlag:false Neighbors: 2 (Children:0 Parents:2 Others:0) (1)0000.0000.0006.01 Cost : -- Flags : Parent (2)0000.0000.0006.02 Cost : -- Flags : Parent 0000.0000.0001.04 Distance : 10 IPv4 Nexthops : 0 Neighbors: 2 (Children:1 Parents:1 Others:0) (1)0000.0000.0001.00 Cost : -- Flags : Parent (2)0000.0000.0005.00 Cost : 0 Flags : Child 0000.0000.0001.06 Distance : 20 IPv4 Nexthops : 0 Neighbors: 1 (Children:0 Parents:1 Others:0) (1)0000.0000.0005.00 Cost : -- Flags : Parent 0000.0000.0002.03 Distance : 20 IPv4 Nexthops : 0 Neighbors: 2 (Children:1 Parents:1 Others:0) (1)0000.0000.0001.00 Cost : -- Flags : Parent (2)0000.0000.0002.00 Cost : 0 Flags : Child 0000.0000.0002.04 Distance : 30 IPv4 Nexthops : 0 Neighbors: 1 (Children:0 Parents:1 Others:0) (1)0000.0000.0002.00 Cost : -- Flags : Parent 0000.0000.0003.01 Distance : 30 IPv4 Nexthops : 0 Neighbors: 2 (Children:1 Parents:1 Others:0) (1)0000.0000.0002.00 Cost : -- Flags : Parent (2)0000.0000.0003.00 Cost : 0 Flags : Child 0000.0000.0003.02 Distance : 30 IPv4 Nexthops : 0 Neighbors: 2 (Children:1 Parents:1 Others:0) (1)0000.0000.0002.00 Cost : -- Flags : Parent (2)0000.0000.0003.00 Cost : 0 Flags : Child 0000.0000.0006.01 Distance : 10 IPv4 Nexthops : 0 Neighbors: 2 (Children:1 Parents:1 Others:0) (1)0000.0000.0001.00 Cost : -- Flags : Parent (2)0000.0000.0006.00 Cost : 0 Flags : Child 0000.0000.0006.02 Distance : 10 IPv4 Nexthops : 0 Neighbors: 2 (Children:1 Parents:1 Others:0) (1)0000.0000.0001.00 Cost : -- Flags : Parent (2)0000.0000.0006.00 Cost : 0 Flags : Child
# Display information about the SPF tree of IPv4 Flex-Algo 128.
<HUAWEI> display isis spf-tree flex-algo 128
Shortest Path Tree for ISIS(1)
------------------------------
Flags: I-Node is invalid R-Node is directly reachable
O-Node is overload A-Node is affected
U-Link is upward D-Link is downward
F-Link is not on tree N-Neighbor is attached to link
S-Link is IGP Shortcut *-Relative cost
ISIS(1) Level-1 Flex-Algo(128) Shortest Path Tree
-------------------------------------------------
Node NodeFlag Distance Link LinkFlag LinkCost
------------------------------------------------------------------------------
>0000.0000.0001.00 -/-/-/- 0
->0000.0000.0006.01 D 10
->0000.0000.0001.04 D 10
->0000.0000.0002.03 D 20
->0000.0000.0006.02 D 10
>0000.0000.0002.00 -/-/-/- 20
->0000.0000.0003.02 D 10
->0000.0000.0003.01 D 10
->0000.0000.0002.03 U --
->0000.0000.0002.04 D 10
>0000.0000.0003.00 -/-/-/- 30
->0000.0000.0003.02 U --
->0000.0000.0003.01 U --
>0000.0000.0005.00 -/-/-/- 10
->0000.0000.0001.04 U --
->0000.0000.0001.06 D 10
>0000.0000.0006.00 -/-/-/- 10
->0000.0000.0006.01 U --
->0000.0000.0006.02 U --
>0000.0000.0001.04 -/-/-/- 10
->0000.0000.0001.00 U --
->0000.0000.0005.00 D 0
>0000.0000.0001.06 -/-/-/- 20
->0000.0000.0005.00 U --
>0000.0000.0002.03 -/-/-/- 20
->0000.0000.0001.00 U --
->0000.0000.0002.00 D 0
>0000.0000.0002.04 -/-/-/- 30
->0000.0000.0002.00 U --
>0000.0000.0003.01 -/-/-/- 30
->0000.0000.0002.00 U --
->0000.0000.0003.00 D 0
>0000.0000.0003.02 -/-/-/- 30
->0000.0000.0002.00 U --
->0000.0000.0003.00 D 0
>0000.0000.0006.01 -/-/-/- 10
->0000.0000.0001.00 U --
->0000.0000.0006.00 D 0
>0000.0000.0006.02 -/-/-/- 10
->0000.0000.0001.00 U --
->0000.0000.0006.00 D 0
# Display detailed information about all IPv4 Flex-Algo SPF trees.
<HUAWEI> display isis spf-tree flex-algo
Shortest Path Tree for ISIS(1)
------------------------------
Flags: I-Node is invalid R-Node is directly reachable
O-Node is overload A-Node is affected
U-Link is upward D-Link is downward
F-Link is not on tree N-Neighbor is attached to link
S-Link is IGP Shortcut *-Relative cost
ISIS(1) Level-1 Flex-Algo(128) Shortest Path Tree
-------------------------------------------------
Node NodeFlag Distance Link LinkFlag LinkCost
------------------------------------------------------------------------------
>0000.0000.0001.00 -/-/-/- 0
->0000.0000.0006.01 D 10
->0000.0000.0001.04 D 10
->0000.0000.0002.03 D 20
->0000.0000.0006.02 D 10
>0000.0000.0002.00 -/-/-/- 20
->0000.0000.0003.02 D 10
->0000.0000.0003.01 D 10
->0000.0000.0002.03 U --
->0000.0000.0002.04 D 10
>0000.0000.0003.00 -/-/-/- 30
->0000.0000.0003.02 U --
->0000.0000.0003.01 U --
>0000.0000.0005.00 -/-/-/- 10
->0000.0000.0001.04 U --
->0000.0000.0001.06 D 10
>0000.0000.0006.00 -/-/-/- 10
->0000.0000.0006.01 U --
->0000.0000.0006.02 U --
>0000.0000.0001.04 -/-/-/- 10
->0000.0000.0001.00 U --
->0000.0000.0005.00 D 0
>0000.0000.0001.06 -/-/-/- 20
->0000.0000.0005.00 U --
>0000.0000.0002.03 -/-/-/- 20
->0000.0000.0001.00 U --
->0000.0000.0002.00 D 0
>0000.0000.0002.04 -/-/-/- 30
->0000.0000.0002.00 U --
>0000.0000.0003.01 -/-/-/- 30
->0000.0000.0002.00 U --
->0000.0000.0003.00 D 0
>0000.0000.0003.02 -/-/-/- 30
->0000.0000.0002.00 U --
->0000.0000.0003.00 D 0
>0000.0000.0006.01 -/-/-/- 10
->0000.0000.0001.00 U --
->0000.0000.0006.00 D 0
>0000.0000.0006.02 -/-/-/- 10
->0000.0000.0001.00 U --
->0000.0000.0006.00 D 0
ISIS(1) Level-1 Flex-Algo(129) Shortest Path Tree
-------------------------------------------------
Node NodeFlag Distance Link LinkFlag LinkCost
------------------------------------------------------------------------------
>0000.0000.0001.00 -/-/-/- 0
->0000.0000.0002.04 D 20
->0000.0000.0006.01 D 10
->0000.0000.0006.02 D 10
->0000.0000.0001.04 D 10
->0000.0000.0002.03 D 20
>0000.0000.0002.00 -/-/-/- 20
->0000.0000.0002.04 U --
->0000.0000.0003.01 D 10
->0000.0000.0002.03 U --
>0000.0000.0003.00 -/-/-/- 30
->0000.0000.0003.01 U --
>0000.0000.0006.00 -/-/-/- 10
->0000.0000.0006.01 U --
->0000.0000.0006.02 U --
>0000.0000.0001.04 -/-/-/- 10
->0000.0000.0001.00 U --
>0000.0000.0002.03 -/-/-/- 20
->0000.0000.0002.00 D 0
->0000.0000.0001.00 U --
>0000.0000.0002.04 -/-/-/- 20
->0000.0000.0002.00 D 0
->0000.0000.0001.00 U --
>0000.0000.0003.01 -/-/-/- 30
->0000.0000.0002.00 U --
->0000.0000.0003.00 D 0
>0000.0000.0006.01 -/-/-/- 10
->0000.0000.0001.00 U --
->0000.0000.0006.00 D 0
>0000.0000.0006.02 -/-/-/- 10
->0000.0000.0001.00 U --
->0000.0000.0006.00 D 0
ISIS(1) Level-1 Flex-Algo(130) Shortest Path Tree
-------------------------------------------------
Node NodeFlag Distance Link LinkFlag LinkCost
------------------------------------------------------------------------------
>0000.0000.0001.00 -/-/-/- 0
->0000.0000.0006.01 D 10
->0000.0000.0002.03 D 20
->0000.0000.0006.02 D 10
->0000.0000.0001.04 D 10
>0000.0000.0002.00 -/-/-/- 20
->0000.0000.0002.03 U --
->0000.0000.0003.01 D 10
->0000.0000.0002.04 D 10
>0000.0000.0003.00 -/-/-/- 30
->0000.0000.0003.01 U --
>0000.0000.0001.04 -/-/-/- 10
->0000.0000.0001.00 U --
>0000.0000.0002.03 -/-/-/- 20
->0000.0000.0002.00 D 0
->0000.0000.0001.00 U --
>0000.0000.0002.04 -/-/-/- 30
->0000.0000.0002.00 U --
>0000.0000.0003.01 -/-/-/- 30
->0000.0000.0002.00 U --
->0000.0000.0003.00 D 0
>0000.0000.0006.01 -/-/-/- 10
->0000.0000.0001.00 U --
>0000.0000.0006.02 -/-/-/- 10
->0000.0000.0001.00 U --
# Display detailed information about the SPF tree of Flex-Algo 128.
<HUAWEI> display isis 1 spf-tree ipv6 flex-algo verbose Shortest Path Tree for ISIS(1) ------------------------------ ISIS(1) Level-1 Flex-Algo(128) Shortest Path Tree ------------------------------------------------- 0000.0000.0001.00 Distance : 0 IPv6 Nexthops : 0 Neighbors: 1 (Children:1 Parents:0 Others:0) (1)0000.0000.0003.00 Cost : 10 Flags : Child 0000.0000.0003.00 Distance : 10 IPv6 Nexthops : 1 (1) FE80::3A15:26FF:FE03:201 IF:Eth0/1/19 NBR:0000.0000.0003.00 Neighbors: 2 (Children:1 Parents:1 Others:0) (1)0000.0000.0005.01 Cost : 10 Flags : Child (2)0000.0000.0001.00 Cost : -- Flags : Parent 0000.0000.0005.00 Distance : 20 IPv6 Nexthops : 1 (1) FE80::3A15:26FF:FE03:201 IF:Eth0/1/19 NBR:0000.0000.0003.00 Neighbors: 1 (Children:0 Parents:1 Others:0) (1)0000.0000.0005.01 Cost : -- Flags : Parent 0000.0000.0005.01 Distance : 20 IPv6 Nexthops : 0 Neighbors: 2 (Children:1 Parents:1 Others:0) (1)0000.0000.0003.00 Cost : -- Flags : Parent (2)0000.0000.0005.00 Cost : 0 Flags : Child ISIS(1) Level-2 Flex-Algo(128) Shortest Path Tree ------------------------------------------------- 0000.0000.0001.00 Distance : 0 IPv6 Nexthops : 0 Neighbors: 1 (Children:1 Parents:0 Others:0) (1)0000.0000.0003.00 Cost : 10 Flags : Child 0000.0000.0003.00 Distance : 10 IPv6 Nexthops : 1 (1) FE80::3A15:26FF:FE03:201 IF:Eth0/1/19 NBR:0000.0000.0003.00 Neighbors: 2 (Children:1 Parents:1 Others:0) (1)0000.0000.0005.01 Cost : 10 Flags : Child (2)0000.0000.0001.00 Cost : -- Flags : Parent 0000.0000.0005.00 Distance : 20 IPv6 Nexthops : 1 (1) FE80::3A15:26FF:FE03:201 IF:Eth0/1/19 NBR:0000.0000.0003.00 Neighbors: 1 (Children:0 Parents:1 Others:0) (1)0000.0000.0005.01 Cost : -- Flags : Parent 0000.0000.0005.01 Distance : 20 IPv6 Nexthops : 0 Neighbors: 2 (Children:1 Parents:1 Others:0) (1)0000.0000.0005.00 Cost : 0 Flags : Child (2)0000.0000.0003.00 Cost : -- Flags : Parent
# Display detailed information about the SPT after the SR anti-microloop function is enabled.
<HUAWEI> display isis spf-tree verbose Shortest Path Tree for ISIS(100) ------------------------------ ISIS(100) Level-1 Shortest Path Tree ------------------------------------ 1111.1111.1111.00 Distance : 0 Distance-URT : 0 IPv6-Distance-URT : 0 Flags : SPT/V4_Islt/V6_Islt IPv4 Nexthops-URT : 0 SR Nexthops : 0 IPv6 Nexthops : 0 Neighbors: 0 (Children:0 Parents:0 Others:0) ISIS(100) Level-2 Shortest Path Tree ------------------------------------ 1111.1111.1111.00 Distance : 0 Distance-URT : 0 IPv6-Distance-URT : 0 Flags : SPT/V4_Islt/V6_Islt IPv4 Nexthops-URT : 0 SR Nexthops : 0 IPv6 Nexthops : 0 Neighbors: 2 (Children:2 Parents:0 Others:0) (1)2222.2222.2222.02 Cost : 10 Flags : Child (2)4444.4444.4444.01 Cost : 10 Flags : Child 2222.2222.2222.00 Distance : 10 Distance-URT : 10 IPv6-Distance-URT : 10 Flags : SPT/V6_Islt SegmentRouting : Enable SRGB : {17000, 17500} IPv4 Nexthops-URT : 1 (1) 10.0.0.2 IF:GE0/1/0 NBR:2222.2222.2222.00 (B) 10.0.0.4 IF:GE0/1/0 NBR:4444.4444.4444.00 TYPE:TI-LOOP-FREE PROTECT:LINK SR Nexthops : 1 (1) 10.0.0.2 IF:GE0/1/0 NBR:2222.2222.2222.00 PHPFlag:true PathSrgb:501 MapFlag:false (B) 10.0.0.4 IF:GE0/1/0 NBR:4444.4444.4444.00 TYPE:TI-LOOP-FREE PROTECT:LINK IPv6 Nexthops : 0 Neighbors: 2 (Children:1 Parents:1 Others:0) (1)2222.2222.2222.02 Cost : 10 Flags : Parent (2)3333.3333.3333.01 Cost : 10 Flags : Child 2222.2222.2222.02 Distance : 10 Distance-URT : 10 IPv6-Distance-URT : 10 Flags : SPT/V4_Islt/V6_Islt/Direct IPv4 Nexthops-URT : 0 SR Nexthops : 0 IPv6 Nexthops : 0 Neighbors: 2 (Children:1 Parents:1 Others:0) (1)1111.1111.1111.00 Cost : 0 Flags : Parent (2)2222.2222.2222.00 Cost : 0 Flags : Child 3333.3333.3333.00 Distance : 20 Distance-URT : 20 IPv6-Distance-URT : 20 Flags : SPT/V6_Islt SegmentRouting : Enable SRGB : {18000, 18500} IPv4 Nexthops-URT : 1 (1) 10.0.0.2 IF:GE0/1/0 NBR:2222.2222.2222.00 (B) 10.0.0.4 IF:GE0/1/0 NBR:4444.4444.4444.00 TYPE:TI-LOOP-FREE PROTECT:LINK-NODE SR Nexthops : 1 (1) 10.0.0.2 IF:GE0/1/0 NBR:2222.2222.2222.00 PHPFlag:false PathSrgb:501 MapFlag:false (B) 10.0.0.4 IF:GE0/1/0 NBR:4444.4444.4444.00 TYPE:TI-LOOP-FREE PROTECT:LINK-NODE IPv6 Nexthops : 0 Neighbors: 2 (Children:0 Parents:1 Others:1) (1)3333.3333.3333.01 Cost : 10 Flags : Parent (2)5555.5555.5555.01 Cost : 200 Flags : Other SR Parent Path ParentNode: 2222.2222.2222.00 LinkSid: 48061 NextHop : 10.0.0.2 IF : GE0/1/0 3333.3333.3333.01 Distance : 20 Distance-URT : 20 IPv6-Distance-URT : 20 Flags : SPT/V6_Islt IPv4 Nexthops-URT : 1 (1) 10.0.0.2 IF:GE0/1/0 NBR:2222.2222.2222.00 SR Nexthops : 1 (1) 10.0.0.2 IF:GE0/1/0 NBR:2222.2222.2222.00 PHPFlag:false PathSrgb:501 MapFlag:false IPv6 Nexthops : 0 Neighbors: 2 (Children:1 Parents:1 Others:0) (1)2222.2222.2222.00 Cost : 0 Flags : Parent (2)3333.3333.3333.00 Cost : 0 Flags : Child 4444.4444.4444.00 Distance : 10 Distance-URT : 10 IPv6-Distance-URT : 10 Flags : SPT/V6_Islt SegmentRouting : Enable SRGB : {20000, 25000} IPv4 Nexthops-URT : 1 (1) 10.0.0.4 IF:GE0/1/0 NBR:4444.4444.4444.00 (B) 10.0.0.2 IF:GE0/1/0 NBR:2222.2222.2222.00 TYPE:TI-LOOP-FREE PROTECT:LINK SR Nexthops : 1 (1) 10.0.0.4 IF:GE0/1/0 NBR:4444.4444.4444.00 PHPFlag:true PathSrgb:5001 MapFlag:false (B) 10.0.0.2 IF:GE0/1/0 NBR:2222.2222.2222.00 TYPE:TI-LOOP-FREE PROTECT:LINK IPv6 Nexthops : 0 Neighbors: 2 (Children:1 Parents:1 Others:0) (1)4444.4444.4444.01 Cost : 10 Flags : Parent (2)5555.5555.5555.02 Cost : 10 Flags : Child 4444.4444.4444.01 Distance : 10 Distance-URT : 10 IPv6-Distance-URT : 10 Flags : SPT/V4_Islt/V6_Islt/Direct IPv4 Nexthops-URT : 0 SR Nexthops : 0 IPv6 Nexthops : 0 Neighbors: 2 (Children:1 Parents:1 Others:0) (1)1111.1111.1111.00 Cost : 0 Flags : Parent (2)4444.4444.4444.00 Cost : 0 Flags : Child 5555.5555.5555.00 Distance : 20 Distance-URT : 20 IPv6-Distance-URT : 20 Flags : SPT/V6_Islt SegmentRouting : Enable SRGB : {19000, 19500} IPv4 Nexthops-URT : 1 (1) 10.0.0.4 IF:GE0/1/0 NBR:4444.4444.4444.00 (B) 10.0.0.2 IF:GE0/1/0 NBR:2222.2222.2222.00 TYPE:TI-LOOP-FREE PROTECT:LINK-NODE SR Nexthops : 1 (1) 10.0.0.4 IF:GE0/1/0 NBR:4444.4444.4444.00 PHPFlag:false PathSrgb:501 MapFlag:false (B) 10.0.0.2 IF:GE0/1/0 NBR:2222.2222.2222.00 TYPE:TI-LOOP-FREE PROTECT:LINK-NODE IPv6 Nexthops : 0 Neighbors: 2 (Children:1 Parents:1 Others:0) (1)5555.5555.5555.01 Cost : 10 Flags : Child (2)5555.5555.5555.02 Cost : 10 Flags : Parent SR Parent Path ParentNode: 3333.3333.3333.00 LinkSid: 48061 NextHop : 10.0.0.2 IF : GE0/1/0 SegmentRouting avoid-microloop Label Stack (Top -> Bottom):48061 5555.5555.5555.01 Distance : 30 Distance-URT : 30 IPv6-Distance-URT : 30 Flags : SPT/V6_Islt IPv4 Nexthops-URT : 1 (1) 10.0.0.4 IF:GE0/1/0 NBR:4444.4444.4444.00 SR Nexthops : 1 (1) 10.0.0.4 IF:GE0/1/0 NBR:4444.4444.4444.00 PHPFlag:false PathSrgb:501 MapFlag:false IPv6 Nexthops : 0 Neighbors: 2 (Children:0 Parents:1 Others:1) (1)3333.3333.3333.00 Cost : 0 Flags : Other (2)5555.5555.5555.00 Cost : 0 Flags : Parent 5555.5555.5555.02 Distance : 20 Distance-URT : 20 IPv6-Distance-URT : 20 Flags : SPT/V6_Islt IPv4 Nexthops-URT : 1 (1) 10.0.0.4 IF:GE0/1/0 NBR:4444.4444.4444.00 SR Nexthops : 1 (1) 10.0.0.4 IF:GE0/1/0 NBR:4444.4444.4444.00 PHPFlag:false PathSrgb:5001 MapFlag:false IPv6 Nexthops : 0 Neighbors: 2 (Children:1 Parents:1 Others:0) (1)4444.4444.4444.00 Cost : 0 Flags : Parent (2)5555.5555.5555.00 Cost : 0 Flags : Child
# Display detailed information about the SPT after the FRR function is enabled.
<HUAWEI> display isis spf-tree verbose Shortest Path Tree for ISIS(1) ------------------------------ ISIS(1) Level-1 Shortest Path Tree ------------------------------------ 0000.0000.0001.00 Distance : 0 Distance-URT : 0 Flags : SPT/V4_Islt/V6_Islt IPv4 Nexthops-URT : 0 SR Nexthops : 0 IPv6 Nexthops : 0 Neighbors: 2 (Children:2 Parents:0 Others:0) (1)0000.0000.0002.01 Cost : 10 Flags : Child (2)0000.0000.0005.02 Cost : 5 Flags : Child 0000.0000.0002.00 Distance : 10 Distance-URT : 10 Flags : SPT/V6_Islt SegmentRouting : Enable SRGB : {153617, 153700} IPv4 Nexthops-URT : 1 (1) 10.23.9.20 IF:GE0/1/0 NBR:0000.0000.0002.00 (B) 10.23.30.10 IF:GE0/1/8 NBR:0000.0000.0005.00 TYPE:REMOTE-LOOP-FREE PROTECT:LINK SR Nexthops : 1 (1) 1.1.1.2 IF:GE0/1/16 NBR:2222.2222.2222.00 PHPFlag:true PathSrgb:84 MapFlag:false IPv6 Nexthops : (1) FE80::2200:10FF:FE03:2 IF:GE0/1/19 NBR:0000.0000.0002.00 (B) 10.23.30.10 IF:GE0/1/8 NBR:0000.0000.0005.00 TYPE:REMOTE-LOOP-FREE PROTECT:LINK Neighbors: 2 (Children:1 Parents:1 Others:0) (1)0000.0000.0002.01 Cost : 5 Flags : Parent (2)0000.0000.0003.02 Cost : 10 Flags : Child
# Display information about the SPT.
<HUAWEI> display isis spf-tree
Shortest Path Tree for ISIS(100)
--------------------------------
Flags: I-Node is invalid R-Node is directly reachable
O-Node is overload A-Node is affected
U-Link is upward D-Link is downward
F-Link is not on tree N-Neighbor is attached to link
S-Link is IGP Shortcut *-Relative cost
ISIS(100) Level-1 Shortest Path Tree
--------------------------------
Node NodeFlag Distance Link LinkFlag LinkCost
--------------------------------------------------------------------------------
0000.0000.0001.00 -/-/-/- 0
->0000.0000.0003.00 D 10
->0000.0000.0003.01 D 10
0000.0000.0002.00 -/-/-/- 10
->0000.0000.0003.01 U 10
->0000.0000.0006.01 D 10
0000.0000.0003.00 -/-/-/- 10
->0000.0000.0001.00 U 10
->0000.0000.0003.01 U 10
0000.0000.0003.01 -/R/-/- 10
->0000.0000.0001.00 U 0
->0000.0000.0002.00 D 0
->0000.0000.0003.00 D 0
0000.0000.0006.00 -/-/-/- 20
->0000.0000.0006.01 U 10
0000.0000.0006.01 -/-/-/- 20
->0000.0000.0002.00 U 0
->0000.0000.0006.00 D 0
ISIS(100) Level-2 Shortest Path Tree
--------------------------------
Node NodeFlag Distance Link LinkFlag LinkCost
--------------------------------------------------------------------------------
0000.0000.0001.00 -/-/-/- 0
->0000.0000.0003.00 D 10
->0000.0000.0003.01 D 10
0000.0000.0002.00 -/-/-/- 10
->0000.0000.0003.01 U 10
->0000.0000.0006.01 D 10
0000.0000.0003.00 -/-/-/- 10
->0000.0000.0001.00 U 10
->0000.0000.0003.01 U 10
0000.0000.0003.01 -/R/-/- 10
->0000.0000.0001.00 U 0
->0000.0000.0002.00 D 0
->0000.0000.0003.00 D 0
0000.0000.0006.00 -/-/-/- 20
->0000.0000.0006.01 U 10
0000.0000.0006.01 -/-/-/- 20
->0000.0000.0002.00 U 0
->0000.0000.0006.00 D 0
# Display information about the SPF tree of Flex-Algo 128.
<HUAWEI> display isis 1 spf-tree ipv6 flex-algo 128
Shortest Path Tree for ISIS(1)
------------------------------
Flags: I-Node is invalid R-Node is directly reachable
O-Node is overload A-Node is affected
U-Link is upward D-Link is downward
F-Link is not on tree N-Neighbor is attached to link
S-Link is IGP Shortcut *-Relative cost
ISIS(1) Level-1 Flex-Algo(128) Shortest Path Tree
-------------------------------------------------
Node NodeFlag Distance Link LinkFlag LinkCost
------------------------------------------------------------------------------
>0000.0000.0001.00 -/-/-/- 0
->0000.0000.0003.00 D 10
>0000.0000.0003.00 -/-/-/- 10
->0000.0000.0005.01 D 10
->0000.0000.0001.00 U --
>0000.0000.0005.00 -/-/-/- 20
->0000.0000.0005.01 U --
>0000.0000.0005.01 -/-/-/- 20
->0000.0000.0003.00 U --
->0000.0000.0005.00 D 0
ISIS(1) Level-2 Flex-Algo(128) Shortest Path Tree
-------------------------------------------------
Node NodeFlag Distance Link LinkFlag LinkCost
------------------------------------------------------------------------------
>0000.0000.0001.00 -/-/-/- 0
->0000.0000.0003.00 D 10
>0000.0000.0003.00 -/-/-/- 10
->0000.0000.0005.01 D 10
->0000.0000.0001.00 U --
>0000.0000.0005.00 -/-/-/- 20
->0000.0000.0005.01 U --
>0000.0000.0005.01 -/-/-/- 20
->0000.0000.0005.00 D 0
->0000.0000.0003.00 U --
| Item | Description |
|---|---|
| Distance | Cost of the shortest path from the root node to the destination node, excluding the TE tunnel link. |
| Distance-URT | Cost of the shortest path from the root node to the destination node, including the TE tunnel link. |
| IPv6-Distance-URT | Cost of the shortest path from the root node to the destination node, including the TE tunnel link in the IPv6 topology. |
| Flags |
|
| Flags | Relationship between the neighbor and the local device:
|
| IPv4 Nexthops-URT | IPv4 next hop of the node in the Multicast IGP (MIGP) table. |
| IPv4 Nexthops | IPv4 next hop of the node in the unicast routing table. |
| SR Nexthops | Next hop of the node in the SR labeled routing table. |
| IPv6 Nexthops | IPv6 next hop of the node. |
| Cost | Cost of the link from the root node to this node. |
| SegmentRouting | Whether SR is enabled on the node. |
| SegmentRouting avoid-microloop Label Stack (Top -> Bottom) | Label values in the SR microloop avoidance label stack, which are displayed in the top-to-bottom order. |
| SRGB | SRGB information about the node. |
| Node | Node ID in the network topology. |
| NodeFlag | Node flag:
|
| Link | Link node. |
| LinkFlag | Link flag:
|
| LinkCost | Link cost. |
| NextHop | Next-hop address of the parent node. |
| IF | Outbound interface of the next hop of the parent node. |
| PHPFlag | Penultimate hop popping (PHP) label. |
| PathSrgb | Minimum SRGB range on the path from the root node to this node. |
| MapFlag | Whether the SR next hop is used only in the mapping server scenario. |
| Neighbors | Information about all the neighbors of this node. |
| NBR | System ID of the next hop. |
| TYPE | Protection type.
|
| PROTECT | Protection:
|
| ParentNode | ID of a parent node. |
| LinkSid | Link label. |