Port Mirroring and Monitoring
In this section:
- Port Mirroring and Monitoring Overview
- Port Mirroring and Monitoring Configuration
- Mirroring Configuration on a Traditional Stack
- ACL-based Inbound Mirroring
- MAC ACL Mirroring
- VLAN-based Mirroring
- Remote Switched Port AnalyzerRemote Switched Port Analyzer (RSPAN) enables remote monitoring of multiple switches across a network. When RSPAN is enabled, a copy of each incoming or outgoing packet from one port on a network switch is forwarded to another port on the same switch where the packet can be analyzed. RSPAN can be used as a diagnostic tool for preventing network attacks.
- Configuring VLAN-based filtering for SPAN or RSPAN
- Encapsulated Remote Switched Port Analyzer (ERSPAN) ERSPAN allows mirroring of packets across a Layer 3 network. Using ERSPAN, you can encapsulate monitored traffic and send it to an analysis station not directly connected to the switch.