Supported Platforms
Related Documentation
- ACX, J, M, MX, PTX, SRX, T Series, QFabric System, QFX Series standalone switches
- Example: Configuring Link and Node Protection for IS-IS Routes
- ACX, EX, J, M, MX, PTX, T Series, QFabric System, QFX Series standalone switches
- show isis backup coverage
show isis backup spf results
Syntax
Syntax (EX Series Switches)
Release Information
Command introduced in Junos OS Release 9.5.
Description
Display information about IS-IS shortest-path-first (SPF) calculations for backup paths.
Options
none | — | Display information about IS-IS SPF calculations for all backup paths for all destination nodes. |
instance instance-name | — | (Optional) Display SPF calculations for backup paths for the specified routing instance. |
level (1 | 2) | — | (Optional) Display SPF calculations for the backup paths for the specified IS-IS level. |
logical-system logical-system-name | — | (Optional) Display SPF calculations for the backup paths for all logical systems or on a particular logical system. |
no-coverage | — | (Optional) Display SPF calculations only for destinations that do not have backup coverage. |
topology (ipv4-multicast | ipv6-multicast | ipv6-unicast | unicast) | — | (Optional) Display SPF calculations for backup paths for the specified topology only. |
Required Privilege Level
view
Related Documentation
- ACX, J, M, MX, PTX, SRX, T Series, QFabric System, QFX Series standalone switches
- Example: Configuring Link and Node Protection for IS-IS Routes
- ACX, EX, J, M, MX, PTX, T Series, QFabric System, QFX Series standalone switches
- show isis backup coverage
List of Sample Output
show isis backup spf resultsshow isis backup spf results no-coverage
Output Fields
Table 1 lists the output fields for the show isis backup spf results command. Output fields are listed in the approximate order in which they appear.
Table 1: show isis backup spf results Output Fields
Field Name | Field Description |
---|---|
node-name | Name of the destination node. |
Address | Address of the destination node. |
Primary next-hop | Interface and name of the node of the primary next hop to reach the destination. |
Root | Name of the next-hop neighbor. |
Metric | Metric to the node. |
Eligible | Indicates that the next-hop neighbor has been designated as a backup path to the destination node. |
Backup next-hop | Name of the interface of the backup next hop. |
SNPA | Subnetwork point of attachment (MAC address of the next hop). |
LSP | Name of the MPLS label-switched path (LSP) designated as a backup path. |
Not eligible | Indicates that the next-hop neighbor cannot function as a backup path to the destination. |
Reason | Describes why the next-hop neighbor is designated as Not eligible as a backup path. |
Sample Output
show isis backup spf results
user@host> show isis backup spf results
IS-IS level 1 SPF results: pro-bng3-k.00 Primary next-hop: fe-1/3/3.0, IPV4, pro-bng3-k, SNPA: b0:c6:9a:2c:f0:de Primary next-hop: fe-1/3/3.0, IPV6, pro-bng3-k, SNPA: b0:c6:9a:2c:f0:de Root: pro-bng3-k, Root Metric: 10, Metric: 0, Root Preference: 0x0 Not eligible, IPV4, Reason: Primary next-hop link fate sharing Not eligible, IPV6, Reason: Primary next-hop link fate sharing Root: pro-bng3-i, Root Metric: 10, Metric: 20, Root Preference: 0x0 track-item: pro-bng3-k.00-00 track-item: pro-bng3-j.00-00 Not eligible, IPV4, Reason: Path loops Not eligible, IPV6, Reason: Path loops pro-bng3-i.00 Primary next-hop: fe-0/1/2.0, IPV4, pro-bng3-i, SNPA: b0:c6:9a:2a:f4:21 Primary next-hop: fe-0/1/2.0, IPV6, pro-bng3-i, SNPA: b0:c6:9a:2a:f4:21 Root: pro-bng3-i, Root Metric: 10, Metric: 0, Root Preference: 0x0 Not eligible, IPV4, Reason: Primary next-hop link fate sharing Not eligible, IPV6, Reason: Primary next-hop link fate sharing Root: pro-bng3-k, Root Metric: 10, Metric: 20, Root Preference: 0x0 track-item: pro-bng3-j.00-00 track-item: pro-bng3-i.00-00 Not eligible, IPV4, Reason: Path loops Not eligible, IPV6, Reason: Path loops 2 nodes IS-IS level 2 SPF results: pro-bng3-k.00 Primary next-hop: fe-1/3/3.0, IPV4, pro-bng3-k, SNPA: b0:c6:9a:2c:f0:de Primary next-hop: fe-1/3/3.0, IPV6, pro-bng3-k, SNPA: b0:c6:9a:2c:f0:de Root: pro-bng3-k, Root Metric: 10, Metric: 0, Root Preference: 0x0 Not eligible, IPV4, Reason: Primary next-hop link fate sharing Not eligible, IPV6, Reason: Primary next-hop link fate sharing Root: pro-bng3-i, Root Metric: 10, Metric: 20, Root Preference: 0x0 track-item: pro-bng3-k.00-00 track-item: pro-bng3-j.00-00 Not eligible, IPV4, Reason: Path loops Not eligible, IPV6, Reason: Path loops pro-bng3-i.00 Primary next-hop: fe-0/1/2.0, IPV4, pro-bng3-i, SNPA: b0:c6:9a:2a:f4:21 Primary next-hop: fe-0/1/2.0, IPV6, pro-bng3-i, SNPA: b0:c6:9a:2a:f4:21 Root: pro-bng3-i, Root Metric: 10, Metric: 0, Root Preference: 0x0 Not eligible, IPV4, Reason: Primary next-hop link fate sharing Not eligible, IPV6, Reason: Primary next-hop link fate sharing Root: pro-bng3-k, Root Metric: 10, Metric: 20, Root Preference: 0x0 track-item: pro-bng3-j.00-00 track-item: pro-bng3-i.00-00 Not eligible, IPV4, Reason: Path loops Not eligible, IPV6, Reason: Path loops 2 nodes
show isis backup spf results no-coverage
user@host> show isis backup spf results no-coverage
IS-IS level 1 SPF results: pro-bng3-k.00 Primary next-hop: fe-1/3/3.0, IPV4, pro-bng3-k, SNPA: b0:c6:9a:2c:f0:de Primary next-hop: fe-1/3/3.0, IPV6, pro-bng3-k, SNPA: b0:c6:9a:2c:f0:de Root: pro-bng3-k, Root Metric: 10, Metric: 0, Root Preference: 0x0 Root: pro-bng3-i, Root Metric: 10, Metric: 20, Root Preference: 0x0 track-item: pro-bng3-k.00-00 track-item: pro-bng3-j.00-00 pro-bng3-i.00 Primary next-hop: fe-0/1/2.0, IPV4, pro-bng3-i, SNPA: b0:c6:9a:2a:f4:21 Primary next-hop: fe-0/1/2.0, IPV6, pro-bng3-i, SNPA: b0:c6:9a:2a:f4:21 Root: pro-bng3-i, Root Metric: 10, Metric: 0, Root Preference: 0x0 Root: pro-bng3-k, Root Metric: 10, Metric: 20, Root Preference: 0x0 track-item: pro-bng3-j.00-00 track-item: pro-bng3-i.00-00 2 nodes IS-IS level 2 SPF results: pro-bng3-k.00 Primary next-hop: fe-1/3/3.0, IPV4, pro-bng3-k, SNPA: b0:c6:9a:2c:f0:de Primary next-hop: fe-1/3/3.0, IPV6, pro-bng3-k, SNPA: b0:c6:9a:2c:f0:de Root: pro-bng3-k, Root Metric: 10, Metric: 0, Root Preference: 0x0 Root: pro-bng3-i, Root Metric: 10, Metric: 20, Root Preference: 0x0 track-item: pro-bng3-k.00-00 track-item: pro-bng3-j.00-00 pro-bng3-i.00 Primary next-hop: fe-0/1/2.0, IPV4, pro-bng3-i, SNPA: b0:c6:9a:2a:f4:21 Primary next-hop: fe-0/1/2.0, IPV6, pro-bng3-i, SNPA: b0:c6:9a:2a:f4:21 Root: pro-bng3-i, Root Metric: 10, Metric: 0, Root Preference: 0x0 Root: pro-bng3-k, Root Metric: 10, Metric: 20, Root Preference: 0x0 track-item: pro-bng3-j.00-00 track-item: pro-bng3-i.00-00 2 nodes
Published: 2014-04-23
Supported Platforms
Related Documentation
- ACX, J, M, MX, PTX, SRX, T Series, QFabric System, QFX Series standalone switches
- Example: Configuring Link and Node Protection for IS-IS Routes
- ACX, EX, J, M, MX, PTX, T Series, QFabric System, QFX Series standalone switches
- show isis backup coverage