Considerations for SLX 9540 and SLX 9640 devices

Keep the following things in mind when configuring SPAN/RSPAN/ERSPAN on SLX 9540, SLX 9640, and SLX 9740 devices.

• SLX 9540 and SLX 9640 do not support RSPAN/ERSPAN. They also do not support the new CLI for configuring flow-based SPAN.
• The devices support fifteen (15) hardware SPAN sessions.
• One unique SPAN destination in the monitor session configuration consumes one hardware SPAN session.
• Twelve sessions are reserved for VxLAN visibility features, snooping applications, and flow-based SPAN sessions.
• Therefore, you can configure three different destinations for port mirroring. If you try to configure mirror sessions with more than three different destination ports, the configuration fails and generates a RASLog message. You have to manually remove the failed configuration.
• The application telemetry feature consumes one hardware SPAN session. If you configure application telemetry, you can configure only two monitor sessions, each with a unique destination, or multiple monitor sessions that share one of the SPAN destination.