This article describes an issue where SSH sessions on managed devices get exhausted by multiple connections from Junos Space.

The symptoms can be seen below:
 

• Unable to take SSH access to managed devices (SRX, EX, QFX )
• Devices shows DOWN in Junos Space
• Management sessions are mismatched

We can verify the SSH connection created by Junos Space as below from Junos Space CLI:

netstat -anlp | awk '{print $5}' | grep ":22" | grep <Managed_Device_IP>

OR

netstat -anlp | awk '{print $5}' | grep ":22" | sort | uniq -c

Ideally, there should be single SSH connection.


This is a reported bug in Junos Space that has been resolved in the latest releases and as a workaround to kill these sessions, we can restart the JBoss service on Junos Space ( KB31228 [juniper.net] )
 

PR 1684165 should be fixed in the versions below and later:
21.3_HPV6
22.1_HPV2
22.2_HPV1

Also, make sure you have the same patch installed on all the Space nodes.

# ls -al /etc | grep -i hotpatch

 

2024-07-12 : Article Created

2025-07-29: Platforms added

2025-11-09:Minor edits and visibility changed