Cisco Certified Network Professional 2026 – 400 Free Practice Questions to Pass the Exam

When configuring a Remote SPAN (RSPAN), it's essential that the source of the RSPAN traffic is either a VLAN or an interface. This means that the traffic to be monitored typically needs to be associated with specific VLANs or directly tied to interfaces that participate in RSPAN configurations. The RSPAN feature allows traffic from these sources to be sent to remote destinations over a specialized VLAN designated for RSPAN.

In the context of RSPAN, it is not necessary for the source to be a local switch, since RSPAN can be configured to carry traffic between switches as long as they are part of the RSPAN configuration. While multiple interfaces can be included in an RSPAN session, specifying them individually rather than collectively as a VLAN is the more common approach, which aligns with the necessity of targeting specific sources for monitoring. Additionally, the requirement for the source to transmit only is not applicable; rather, the focus is on the types of sources (VLANs or interfaces) that can be configured to send their traffic to the RSPAN destination.