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

[MX] Aggregate Interface member links may fail to send traffic



Article ID: KB24840 KB Last Updated: 13 Jun 2012Version: 1.0
This article describes the issue of a child link being removed from a AE bundle and re-attached to it in Junos.
  • In Junos releases 10.4R6, 10.4R7, 11.1R6, and 11.2R3, with the minimum-links option configured on an aggregate interface, this issue might occur.

  • If an aggregate bundle goes down due to 2 or more minimum-links being configured, bundle member links might not attach to the bundle; once the aggregate bundle comes back up.

  • Outbound traffic will not use an affected member link (no black holing) and inbound traffic for such a member link is properly processed and forwarded.

  • Customers who use aggregate interfaces, which are configured with the minimum-links option, are discouraged from using affected releases of Junos software.
When a member link goes down, it may not get instantly re-attached to the bundle, when it comes back up
Junos software has been modified to correct the defect. The modified code is available in Junos releases 10.4R8, 11.2R4, and 11.4R1 or later.

As a workaround, when a member link goes down and does not get re-attached to the aggregate interface, an operator can deactivate the member link and then activate it. This sequence will re-attach the link to the aggregate interface, which enables it to resume the carrying of traffic. This issue is being tracked under PR 695895.

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