port mirroring

(redirected from SPAN port)

port mirroring

Cross connecting two or more ports on a network switch so that traffic can be simultaneously sent to a network analyzer or monitor connected to another port. Also called "port spanning." See network analyzer and RMON.
References in periodicals archive ?
The new version of OptiView XG also includes new in-line testing that eliminates the need for an external tap or span port when observing conversations between clients and application servers.
The GigaVUE[R] line of intelligent data access switches eliminate SPAN port contentions, extend legacy tool utilization within 10Gbps environments, and enhance the effectiveness and productivity of network monitoring and security tools - all while running at full line rate speeds.
Aggregating taps offer a viable new option for analysis solutions originally intended for mirror/ SPAN port deployment.
have announced Barracuda IM Firewall enhancements, which include the ability to monitor and record public IM traffic out-of-band using a span port, hub, or Ethernet tap.
Barracuda Networks have announced Barracuda IM Firewall enhancements, which include the ability to monitor and record public IM traffic out-of-band using a span port, hub or Ethernet tap.
The GigaVUE(R) line of intelligent data access switches eliminate SPAN port contentions, extend legacy tool utilization within 10Gbps environments, and enhance the effectiveness and productivity of network monitoring and security tools - all while running at full line rate speeds.
It then routes the integrated signal through the send channel of the SPAN port to a monitoring device.
So TAPs are essential on critical links, while using a SPAN port may be sufficient on less-critical links.
Each monitoring tool requires access to the data traversing the network, which is typically achieved by connecting the tools via a TAP or SPAN port.
Unlike a SPAN port, a TAP cannot drop packets, will not affect switch performance, and the 10-Gb nTAP can assure up to 20 Gbps of data delivery to the analysis device.
The Anue Net Tool Optimizer increases network visibility, improves monitoring tool performance and eliminates TAP and SPAN port shortages by replicating, filtering and aggregating data delivered to monitoring tools.