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show chassis fabric reachability

Syntax

show chassis fabric reachability<detail>

Release Information

Command introduced before Junos OS Release 11.4.

Command introduced in Junos OS Release 12.1 for MX240, MX480, and MX960 routers.

Command introduced in Junos OS Release 12.1X48R4 for PTX Series Packet Transport Switches.

Description

(M320, MX240, MX480, MX960, and T Series routers only) Display the current state of fabric destination reachability. Additionally, display the details of the automated actions taken by the system to stop blackholing and attempt healing, and the final resolution of the actions.

Options

none

—

Display the state of fabric destination reachability for M320, MX240, MX480, MX960, T640, and T1600 routers, based on periodic reachability checks. Display the system's action phase sequences to stop blackholing and attempt healing, and the final resolution.

detail

—

(Optional) Display the details of the actions carried out by the system in the different action phases and the final resolution.

Required Privilege Level

view

Related Documentation

M Series
show chassis fabric unreachable-destinations
MX Series
show chassis fabric unreachable-destinations
T Series
show chassis fabric unreachable-destinations

List of Sample Output

show chassis fabric reachability
show chassis fabric reachability detail
show chassis fabric reachability (PTX5000 system)

Output Fields

The table lists the output fields for the show chassis fabric reachability command. Output fields are listed in the approximate order in which they appear.

Table 1: show chassis fabric reachability Output Fields

Field Name	Field Description	Level of Output
Fabric reachability status	Display the reachability status of the fabric. Enabled destinations transitioned to unreachable, Fabric down action in progress—Some enabled destinations that were originally reachable have become unreachable. The system is trying to stop the fabric down condition and attempt healing. Enabled destinations reachable—The enabled destinations are reachable. Unreachable destinations healed—The unreachable destinations are healed and are reachable. Unreachable destinations removed—The unreachable destinations are removed. Unreachable destinations present—Unreachable destinations are present in the system. Unreachable destinations present due to FPC restart disable configuration—Unreachable destinations are present as a result of user configuration set to disable FPC restart.	All levels
Unreachable destinations	Number of FPCs that have unreachable destinations.	All levels
Detected on	Date and time when unreachable destinations are detected.	All levels
Reason	Reason for the destination turning unreachable. Single FPC error—A single bad FPC is not reachable over the fabric. Fabric plane error—Multiple FPCs are not able to forward traffic over the fabric planes.	All levels
Fabric reachability action	Action taken to handle the unreachable destination. Plane Action—The healing is attempted only for the fabric planes. SIB Action—(PTX Series system only) The healing is attempted only for the SIBs. Plane and FPC Action—The healing is attempted both for the fabric planes and the FPCs. SIB and FPC Action—(PTX Series system only) The healing is attempted both for the SIBs and the FPCs. FPC Action—The healing is attempted only for the bad FPCs.	All levels
Acting on	Current action is being performed on: Single FPC error—The current operation is for healing the single bad FPC. Fabric Plane error—The current operation is for healing the fabric planes.	All levels
Initial phase	Starting phase for the healing action. Plane restart—The fabric planes are restarted. SIB restart—(PTX Series system only) The SIBs are restarted. Plane and FPC restart—Both the fabric planes and affected FPCs are restarted. SIB and FPC restart—(PTX Series system only) SIBs and affected FPCs are restarted.	All levels
Current phase	Current phase for the healing action. Plane restart—The fabric planes are restarted. SIB restart—(PTX Series system only) The SIBs are restarted. Plane and FPC restart—Both the fabric planes and affected FPCs are restarted. SIB and FPC restart—(PTX Series system only) Both the SIBs and affected FPCs are restarted. FPC offline—The FPCs are turned offline because the previously mentioned healing processes have failed.	All levels
Action started	Date and time when the system fabric down healing attempt is started.	All levels
Plane restart phase	The status of the plane restart phase. Completed—The plane restart phase is completed. In progress—The plane restart phase is in progress.	detail
Phase started	Date and time when the plane restart phase is started.	detail
Planes restarted	List of plane numbers restarted by the system.	detail
Planes timed out	List of plane numbers that have timed out waiting to be restarted by the system.	detail
Planes being offlined / onlined	Planes that are turned offline or turned online by the system, with date and time.	detail
Phase completed	Date and time when the plane restart phase is completed.	detail
Plane and FPC Restart Phase	Status of the plane and FPC restart phase. Completed—The plane and FPC restart phase is completed. In progress—The plane and FPC restart phase is in progress.	detail
Phase started	Date and time when the plane and FPC restart phase is started.	detail
FPC Offline Started	Date and time when the FPC offline action is started.	detail
Offlined FPCs	List of FPCs that are turned offline by the system.	detail
FPCs timed out	List of FPCs that have timed out waiting to be turned offline by the system.	detail
FPC being offlined	FPC that is being turned offline by the system, with date and time.	detail
FPC Offline completed	Date and time when the FPC offline action is completed.	detail
Plane restarting started	Date and time when the plane restart action is started.	detail
Planes restarted	List of planes restarted by the system.	detail
Planes being offlined / onlined	Planes that are currently being turned offline or turned online by the system, with date and time.	detail
Plane restarting completed	Date and time when the plane restarting action is completed.	detail
FPC online started	Date and time when FPC online action is started.	detail
Onlined FPCs	List of FPCs that are turned online by the system.	detail
FPCs timed out	FPCs that have timed out waiting to be turned online by the system.	detail
FPC being onlined	FPC that is being turned online by the system, with date and time.	detail
FPC Online completed	Date and time when the action of turning the FPCs online is completed.	detail
Phase Completed	Date and time when the plane and FPC restart phase is completed.	detail
Phase started	Date and time when the plane and FPC restart phase is started.	detail
FPC restart time	Date and time when the FPC restart action is started.	detail
FPC restarted	FPC that is restarted by the system, with date and time.	detail
Phase Completed	Date and time when the plane and FPC restart phase is completed.	detail
FPC Offline Phase	Status of the FPC offline phase. Completed— The FPC offline phase is completed. In progress—The FPC offline phase is currently in progress.	detail
Phase started	Date and time when the FPC offline phase is started.	detail
FPC Offline started	Date and time when the FPC offline action is started.	detail
Offlined FPCs	List of FPCs turned offline by the system.	detail
FPCs timed out	List of FPCs that have timed out waiting to be turned offline by the system.	detail
FPC being offlined	FPC that is being turned offline by the system, with date and time.	detail
FPC Offline completed	Date and time when the FPC offline action is completed.	detail
Phase Completed	Date and time when the FPC offline phase is completed.	detail
Action Completed	Date and time when the system fabric down healing attempt is completed.	All levels
Fabric reachability resolution	Status after the healing actions are performed. Unreachable destinations healed after phase name—The unreachable destinations are healed after the healing actions are performed. The phase name indicates the last healing phase. Unreachable destinations removed by FPCs FPC number offline—The unreachable destinations are removed by turning the FPCs offline. Unreachable destinations present on FPC/PFE FPC/PFE number—The unreachable destinations are present on the FPCs or Packet Forwarding Engines and need to be acted upon.	All levels

Sample Output

show chassis fabric reachability

user@host> show chassis fabric reachability

Fabric reachability status: Unreachable destinations removed

Fabric reachability detection:
    Unreachable destinations                : Present on 3 FPCs
        Detected on                         : 2010-11-22 15:19:45 PST
        Reason                              : Fabric plane error

Fabric reachability action:
    Fabric reachability action              : FPC action
    Acting on                               : Fabric plane error
    Initial phase                           : Plane restart
    Current phase                           : FPC offline is completed
    Action started                          : 2010-11-22 15:08:05 PST
    Action completed                        : 2010-11-22 15:19:45 PST

Fabric reachability resolution: Unreachable destinations removed by FPCs 2, 3, 5
 offline

show chassis fabric reachability detail

user@host> show chassis fabric reachability
detail

Fabric reachability status: Unreachable destinations removed
Fabric reachability detection:
    Unreachable destinations                : Present on 3 FPCs
        Detected on                         : 2010-11-15 15:50:32 PST
        Reason                              : Fabric plane error

Fabric reachability action:
    Fabric reachability action              : FPC action
    Acting on                               : Fabric plane error
    Initial phase                           : Plane restart
    Current phase                           : FPC offline is completed
    Action started                          : 2010-11-15 15:41:47 PST
        Plane restart phase                 : Completed
            Phase started                   : 2010-11-15 15:41:47 PST
                Planes restarted            : 0, 1, 2, 3, 4, 0
            Phase completed                 : 2010-11-15 15:42:14 PST
        Plane and FPC Restart Phase         : Completed
            Phase started                   : 2010-11-15 15:45:52 PST
                FPC Offline Started         : 2010-11-15 15:45:52 PST
                    Offlined FPCs           : 2, 3, 5, 7
                FPC Offline completed       : 2010-11-15 15:45:52 PST
                Plane restarting started    : 2010-11-15 15:45:52 PST
                    Planes restarted        : 0, 1, 2, 3, 4, 0
                Plane restarting completed  : 2010-11-15 15:46:11 PST
                FPC online started          : 2010-11-15 15:46:11 PST
                    Onlined FPCs            : 2, 3, 5, 7
                FPC online completed        : 2010-11-15 15:46:50 PST
            Phase completed                 : 2010-11-15 15:46:50 PST
        FPC offline phase                   : Completed
            Phase started                   : 2010-11-15 15:50:32 PST
                FPC offline started         : 2010-11-15 15:50:32 PST
                    Offlined FPCs           : 2, 3, 5
                FPC offline completed       : 2010-11-15 15:50:32 PST
            Phase completed                 : 2010-11-15 15:50:32 PST
    Action completed                        : 2010-11-15 15:50:32 PST

Fabric reachability resolution: Unreachable destinations removed by FPCs 2, 3, 5
 offline

show chassis fabric reachability (PTX5000 system)

user@host> show chassis fabric reachability

Fabric reachability status: Enabled destinations transitioned to unreachable, Fabric down action in progress

Fabric reachability detection:
    Unreachable destinations                : Present on 5 FPCs
        Detected on                         : 2012-11-14 15:53:00 PST
        Reason                              : Fabric plane error

Fabric reachability action:
    Fabric reachability action              : SIB action
    Acting on                               : Fabric plane error
    Initial phase                           : SIB restart
    Current phase                           : SIB restart is in progress
    Action started                          : 2012-11-14 15:53:00 PST

TechLibrary

Related Documentation

show chassis fabric reachability

Syntax

Release Information

Description

Options

Required Privilege Level

Related Documentation

List of Sample Output

Output Fields

Sample Output

Published: 2014-01-19