Example: Configuring Chassis Cluster Minimum Links (CLI)

When a redundant Ethernet interface has more than two child links, you can set a minimum number of physical links assigned to the interface on the primary node that must be working for the interface to be up. When the number of physical links on the primary node falls below the minimum-links value, the interface will be down even if some links are still working. The default minimum-links value is 1.

The previous minimum-links setting example requires that three child links on the current primary node and bound to reth1 be working to prevent the interface from going down. In a redundant Ethernet interface LAG configuration where six interfaces are assigned to reth1, setting the minimum-links value to 3 would mean that all reth1 child links on the primary node must be working to prevent the interface’s status from changing to down.

Note: Although it is possible to set a minimum-links value for a redundant Ethernet interface with only two child interfaces (one on each node), we do not recommend it.

Related Topics

• Junos OS Feature Support Reference for SRX Series and J Series Devices
• Understanding Chassis Cluster Redundant Ethernet Interfaces
• Understanding Chassis Cluster Redundant Ethernet Interface Link Aggregation Groups
• Example: Configuring Chassis Cluster Redundant Ethernet Interface Link Aggregation Groups (CLI)
• Understanding Conditional Route Advertising in a Chassis Cluster
• Understanding Chassis Cluster Formation