show (ospf | ospf3) backup spf
Syntax
show (ospf | ospf3) backup spf <brief | detail> <area area-id> <instance instance-name> <logical-system (all | logical-system-name> <no-coverage> <node-id> <realm (ipv4–unicast | ipv6–unicast)> <topology (default | ipv4-multicast | topology-name)>
Syntax (QFX Series)
show (ospf | ospf3) backup spf <brief | detail> <area area-id> <instance instance-name> <no-coverage> <node-id> <topology (default | ipv4-multicast | topology-name)>
Description
Display information about OSPF shortest-path-first calculations for backup paths.
Options
| none | Display information about OSPF shortest-path-first (SPF) calculations for all backup paths for all destination nodes. |
| brief | detail | (Optional) Display the specified level of output. |
| area area-id | (Optional) Display the area information. |
| instance instance-name | (Optional) Display information about the routing instance. |
| logical-system (all | logical-system-name) | (Optional) Display information about all logical systems or a specific logical system. |
| no-coverage | (Optional) Display information if there is no backup coverage. |
| node-id | (Optional) Display information about the node specified. |
| realm (ipv4–unicast | ipv6–unicast) | (Optional) Display information about the ipv4 or ipv6 realm. |
| topology (default | ipv4-multicast | topology-name) | (Optional) (OSPFv2 only) Display information about the default topology, IPv4 multicast topology, or a specifc topology. |
Required Privilege Level
view
Output Fields
Table 1 lists the output fields for the show (ospf |ospf3) backup
spf command. Output fields are listed in the approximate order
in which they appear.
Field Name |
Field Description |
Level of Output |
|---|---|---|
Area area-id results |
Area for which the results are displayed. Area 0.0.0.0 is the backbone area. |
All levels |
address |
Address of the node for which the results are displayed. |
All levels |
Self to Destination Metric |
Metric from the node to the destination. |
All levels |
Parent Node |
Address of the parent node. |
All levels |
Primary next-hop |
Address of the next hop. |
All levels |
Backup Neighbor |
Address of the backup neighbor or LSP endpoint and the following information:
Note:
If the backup neighbor is an LSP endpoint, it is indicated as such after the neighbor address. |
All levels |
Sample Output
show ospf backup spf
user@host> show ospf backup spf
Topology default results:
Area 0.0.0.0 results:
pro16-d-lo0.xxx.yyyy.net
Self to Destination Metric: 1
Parent Node: pro16-b-lo0.xxx.yyyy.net
Primary next-hop: at-1/0/1.0
Backup Neighbor: pro16-c-lo0.xxx.yyyy.net (LSP endpoint)
Neighbor to Destination Metric: 4, Neighbor to Self Metric: 3
Self to Neighbor Metric: 3
Not eligible, Reason: Path loops
Backup Neighbor: pro16-d-lo0.xxx.yyyy.net
Neighbor to Destination Metric: 0, Neighbor to Self Metric: 1
Self to Neighbor Metric: 1
Not eligible, Reason: Primary next-hop link fate sharing
...
Release Information
Command introduced in Junos OS Release 10.0.