Support Support Downloads Knowledge Base Case Manager My Juniper Community

Knowledge Base

Search our Knowledge Base sites to find answers to your questions.

Ask All Knowledge Base Sites All Knowledge Base Sites JunosE Defect (KA)Knowledge BaseSecurity AdvisoriesTechnical BulletinsTechnotes Sign in to display secure content and recently viewed articles

[QFX] Virtual chassis with two QFX5100 members is not able to reboot either members due to "ISSU in progress"

0

0

Article ID: KB33568 KB Last Updated: 03 Apr 2019Version: 1.0
Summary:

Sometimes it may be observed that a virtual chassis, which consists of two QFX5100 member devices, is not able to reboot either members because of the "ISSU in progress" message.

This article explains what must be done so that the virtual chassis can successfully reboot its member devices.

 

Symptoms:

A virtual chassis, which consists of two QFX5100 member devices, is not able to reboot either members because of the "ISSU in progress" message. This is seen when trying to reboot member 0 or member 1. Although ISSU is not being initiated, this message is preventing the virtual chassis from rebooting either members. 

{master:0}
root@QFX5100-VC> show version | match "Model|^Junos:|local|fpc"
localre:
--------------------------------------------------------------------------
Model: qfx5100e-48s-6q
Junos: 17.3R3.10
fpc1:
--------------------------------------------------------------------------
Model: qfx5100e-48s-6q
Junos: 17.3R3.10

{master:0}
root@QFX5100-VC> show virtual-chassis

Preprovisioned Virtual Chassis
Virtual Chassis ID: d9fa.0ffe.f79b
Virtual Chassis Mode: Enabled
                                                Mstr           Mixed Route Neighbor List
Member ID  Status   Serial No    Model          prio  Role      Mode  Mode ID  Interface
0 (FPC 0)  Prsnt    TA3715440058 qfx5100e-48s-6q 129  Master*      N  VC   1  vcp-255/0/48
                                                                           1  vcp-255/0/50
1 (FPC 1)  Prsnt    TA3715440048 qfx5100e-48s-6q 129  Backup       N  VC   0  vcp-255/0/48
                                                                           0  vcp-255/0/50

{master:0}
root@QFX5100-VC> request system reboot member 1 
warning: ISSU in progress

{master:0}
root@QFX5100-VC> request system reboot member 0    
warning: ISSU in progress
 

Both non-stop routing and graceful switchover are enabled, and the VC is ready for a Routing Engine switchover:

{master:0}
root@QFX5100-VC> request session member 1 
Last login: Tue Dec 11 14:32:27 from 172.17.31.80

--- JUNOS 17.3R3.10 Kernel 64-bit  JNPR-10.3-20180615.4674357_buil
root@QFX5100-VC:BK:1% cli
{backup:1}
root@QFX5100-VC> show system switchover 
localre:
--------------------------------------------------------------------------
Graceful switchover: On
Configuration database: Ready
Kernel database: Synchronizing

 

Cause:

When performing ISSU upgrade, a flag is set. In this case, the flag has not been cleared, so the system thinks that ISSU is still in progress, which prevents the device from rebooting.

Resetting the ISSU flag will resolve this problem:

{master:0}
root@QFX5100-VC> start shell                        
root@QFX5100-VC:RE:0% sysctl hw.re.issu_state   
hw.re.issu_state: 64

 

Solution:

To resolve this problem, reset the ISSU flag to 0:

{master:0}
root@QFX5100-VC> start shell
root@QFX5100-VC:RE:0% sysctl -w hw.re.issu_state=0
hw.re.issu_state: 64 -> 0
root@QFX5100-VC:RE:0% cli
{master:0}
root@QFX5100-VC> 

{master:0}
root@QFX5100-VC> request system reboot member 1 
Reboot the system ? [yes,no] (no) yes 

Rebooting fpc1
                                                                               
*** System shutdown message from root@QFX5100-VC ***                         

System going down in 1 minute  

 

Comment on this article > Affected Products Browse the Knowledge Base for more articles related to these product categories. Select a category to begin.

Getting Up and Running with Junos

Getting Up and Running with Junos Security Alerts and Vulnerabilities Product Alerts and Software Release Notices Problem Report (PR) Search Tool EOL Notices and Bulletins JTAC User Guide Customer Care User Guide Pathfinder SRX High Availability Configurator SRX VPN Configurator Training Courses and Videos End User Licence Agreement Global Search