Monitoring a Unified In-Service Software Upgrade

You can use the show issu command to monitor the status of the router with regard to a unified in-service software upgrade.

Use to display information about the current status of the router relative to a unified in-service software upgrade and of the upgrade itself.
Field descriptions

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

Example 1—Displays the current unified ISSU state and identifies the active and armed releases

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

Example 2—To the information displayed by show issu brief, 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

Example 3—To the information displayed by show issu, 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 releas   No

     Reporting Slot: 6

     Impact: ISSU cannot be performed

     Remedy: boot a release compatible with ISSU on the standby S

RP

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

     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