Monitoring the Status of the Router During Unified ISSU

Purpose

Display information about the current status of the router relative to a unified in-service software upgrade and of the upgrade itself.

Action

To display the current unified ISSU state and identify the active and armed releases in brief:

host1#show issu brief

ISSU state:       initializing
ISSU description: ISSU initialize is in-progress, 5% complete
criteria met:     No, upgrade error(s) found
running release:  release1.rel
armed release:    release2.rel
To the information displayed by show issu brief, the show issu command adds a summary
table of unified ISSU verification criteria:
host1# show issu
ISSU state:       idle
ISSU description: ISSU is currently idle
criteria met:     No, upgrade error(s) found
running release:  release1.rel
armed release:    release2.rel
#                  ISSU Activation Criteria Summary                Met    
--   -----------------------------------------------------   -----------
1    In-Service Software Upgrade ready?                           Yes        
2    High-Availability ready?                                     No         
3    Line modules ready?                                        Conditional
4    Configuration conversion support ready?                      Yes        
5    CLI sessions ready?                                          Yes        
6    Routing applications ready?                                  Yes        
7    Protocol timers ready?                                       Yes        

To the information displayed by show issu, the show issu detail command adds a
detailed table of unified ISSU verification criteria that lists mandatory
and conditional criteria that have not been met, the impact of this
status, and the remedy as reported by router applications and system
components that participate in the in-service software upgrade:
host1# show issu detail
ISSU state:       idle
ISSU description: ISSU is currently idle
criteria met:     No, upgrade error(s) found
running release:  release1.rel
armed release:    release2.rel
#                  ISSU Activation Criteria Summary               Met    
--   ------------------------------------------------------   -----------
1    In-Service Software Upgrade ready?                           Yes        
2    High-Availability ready?                                     No         
3    Line modules ready?                                      Conditional
4    Configuration conversion support ready?                      Yes        
5    CLI sessions ready?                                          Yes        
6    Routing applications ready?                                  Yes        
7    Protocol timers ready?                                       Yes        
#                 ISSU Criterion Detail                           Met    
--   ------------------------------------------------------   -----------
1    In-Service Software Upgrade ready?                           Yes        
2    High-Availability ready?                                      No         
->  Problem: The standby SRP must not be running the same release  No         
                                                                              
     Reporting Slot: 6                                                                   
     Impact: ISSU cannot be performed                                          
     Remedy: boot a release compatible with ISSU on the standby SRP                                                          
3    Line modules ready?                                   Conditional
->   Problem: Card does not support required memory configuration  Conditional
     : Slot 1, OC3/OC12/DS3-ATM, requires at least 256 MB                      
     Reporting Slot: 6                                                                   
     Impact: If you continue, the card will immediately be reset               
     and then cold started when ISSU Upgrade completes                         
     Remedy: data unavailable                                                  
->   Problem: Card does not support required memory configuration  Conditional
     : Slot 8, CT3-12, requires at least 256 MB                                
     Reporting Slot: 6                                                                   
     Impact: If you continue, the card will immediately be reset               
     and then cold started when ISSU Upgrade completes                         
     Remedy: data unavailable                                                  
->   Problem: Card does not support required memory configuration  Conditional
     : Slot 9, CT3-12, requires at least 256 MB                                
     Reporting Slot: 6                                                                   
     Impact: If you continue, the card will immediately be reset               
     and then cold started when ISSU Upgrade completes                         
     Remedy: data unavailable                                                  
->   Problem: Card does not support required memory configuration  Conditional
     : Slot 10, CT3-12, requires at least 256 MB                               
     Reporting Slot: 6                                                                   
     Impact: If you continue, the card will immediately be reset               
     and then cold started when ISSU Upgrade completes                         
     Remedy: data unavailable                                                  
->   Problem: Card not disabled or not online: Slot 1, OC3/OC12/D  Conditional
     S3-ATM, 0/0                                                               
     Reporting Slot: 6                                                                   
     Impact: If you continue, the card will immediately be reset               
     and then cold started when ISSU Upgrade completes                         
     Remedy: If not standby, Wait for card to come online before               
     proceeding                                                                
->   Problem: Card not disabled or not online: Slot 8, CT3-12, 0/  Conditional
     0                                                                         
     Reporting Slot: 6                                                                   
     Impact: If you continue, the card will immediately be reset               
     and then cold started when ISSU Upgrade completes                         
     Remedy: If not standby, Wait for card to come online before               
     proceeding                                                                
4    Configuration conversion support ready?                        Yes        
5    CLI sessions ready?                                            Yes        
6    Routing applications ready?                                    Yes        
7    Protocol timers ready?                                         Yes        

Meaning
Table 23 lists the show issu command output fields.
Table 23: show issu
Output Fields
Field Name
Field Description
ISSU state
State of the upgrade process, idle, initializing, initialized,
or upgrading
ISSU description
State of the upgrade, including percent complete
criteria met
Whether prerequisites for the upgrade have been met and,
generally, what errors occurred
running release
Filename of JunosE Software release that is currently
running on the SRP modules
armed release
Filename of JunosE Software release that is armed to
become the next running release when the router reboots
ISSU Activation Criteria Summary
Summarizes the criteria for unified ISSU activation.
In-Service Software Upgrade ready?
Criteria required for unified ISSU activation. Possible
values: Yes, No, Conditional.
Note:
			All criteria must be “yes” for unified ISSU
to be active.
High-Availability ready?
Criteria required for unified ISSU activation. Possible
values: Yes, No, Conditional.
Note:
			All criteria must be “yes” for unified ISSU
to be active.
Line Modules ready?
Criteria required for unified ISSU activation. Possible
values: Yes, No, Conditional.
Note:
			All criteria must be “yes” for unified ISSU
to be active.
Configuration conversion support ready?
Criteria required for unified ISSU activation. Possible
values: Yes, No, Conditional.
Note:
			All criteria must be “yes” for unified ISSU
to be active.
CLI sessions ready?
Criteria required for unified ISSU activation. Possible
values: Yes, No, Conditional.
Note:
			All criteria must be “yes” for unified ISSU
to be active.
Routing applications ready?
Criteria required for unified ISSU activation. Possible
values: Yes, No, Conditional.
Note:
			All criteria must be “yes” for unified ISSU
to be active.
Protocol Timers ready?
Criteria required for unified ISSU activation. Possible
values: Yes, No, Conditional.
Note:
			All criteria must be “yes” for unified ISSU
to be active.
ISSU Criterion Detail
Detailed information on why the criteria required for
unified ISSU activation was not met or was conditional. 
Problem
The reason why the criteria for unified ISSU activation
is not met.
Reporting Slot
Slot where the issue occurred.
Impact
What happens if you continue with the upgrade.
Remedy
What you can do to fix the Problem.
Related Documentation

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