Support Support Downloads Knowledge Base Juniper Support Portal 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

EX Switches - PSN advisory for Junos 11.1R1 - Release Not Recommended



Article ID: JSA10475 SECURITY_ADVISORIES Last Updated: 09 May 2013Version: 1.0
Legacy Advisory Id:
Product Affected:
EX Series

Due to a late-discovered critical software issue, Juniper Networks recommends that Junos OS 11.1R1 not be installed on any EX Series platforms. Details of this issue will not be released at this time, pending availability of replacement software.

This problem will be addressed and resolved in the next service release of Junos OS 11.1S1, with the expected release date of 2011/04/29. Until then, it is strongly advised to delay any Junos OS 11.1R1 upgrades until the Service Release is available. Customers currently running Junos OS 11.1R1 are strongly advised to temporarily downgrade to an earlier release.


No viable workarounds exist for this issue.
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