Chapter 1 Configuring Interfaces and Circuits

Configuring the Switched Port Analyzer Feature

Configuring the Switched Port Analyzer Feature

Configure the switched port analyzer (SPAN) feature on your CSS to mirror (copy) traffic passing through one CSS port (Fast Ethernet or Gigabit Ethernet) to another designated port of the same type and on the same CSS module for analysis. You can use SPAN for network troubleshooting or tuning using a network analyzer. SPAN is sometimes referred to as port mirroring or port monitoring.

A SPAN session is the association of a destination port with a source port on the same CSS module. The port that is monitored is called the source SPAN (SSPAN) port. An SSPAN port consists of two components:

•Ingress path - Network traffic entering the CSS. The CSS copies to the monitoring port packets that the SSPAN port receives (SSPAN Rx) from the network.

•Egress path - Network traffic leaving the CSS. The CSS copies to the monitoring port packets that the SSPAN port transmits (SSPAN Tx) to the network.

SPAN can monitor the ingress path, the egress path, or both. You can configure only one SSPAN port in a CSS chassis.

The port that monitors the SSPAN port is called the destination SPAN (DSPAN) port. You can configure only one DSPAN port in a CSS chassis and it must have the following characteristics:

•Same speed as the SSPAN port

•Same media type as the SSPAN port

•Local (physically resides on the same CSS module)

Once you configure a port as a DSPAN port, the CSS removes it from all VLANs and ignores ingress traffic on that port. In addition, the DSPAN port does not participate in STP or routing protocols such as RIP and OSPF.

Traffic copied to the DSPAN port is typically forwarded to a network analyzer, protocol analyzer, or an RMON probe. SPAN allows you to monitor CSS ports without:

•Disconnecting cables

•Requiring multiple analyzers or probes

•Needing hubs or switches

 

Cisco Content Services Switch Routing and Bridging Configuration Guide

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OL-8241-02

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Cisco Systems OL-8241-02 manual Configuring the Switched Port Analyzer Feature
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OL-8241-02 specifications

Cisco Systems OL-8241-02 is a significant component of Cisco's extensive portfolio, catering specifically to the needs of enterprise-level networking. This module is designed to provide advanced routing capabilities, aiding organizations in achieving robust connectivity and efficient data transmission across their networks. It is particularly popular among businesses that require reliable performance and scalability.

One of the main features of the OL-8241-02 module is its support for multiple protocols, including OSPF, EIGRP, and BGP, which allows for seamless integration into various network configurations. This flexibility ensures that organizations can adapt to evolving networking demands without undergoing complete infrastructure overhauls. Furthermore, the module includes advanced security features, such as IPsec VPN support and integrated firewall capabilities, enhancing overall network security and protecting sensitive data from potential threats.

Another noteworthy characteristic of the OL-8241-02 is its exceptional performance metrics. With high throughput rates and low latency, the module can handle significant amounts of data traffic without compromising on speed. This efficiency is particularly critical for businesses that rely heavily on real-time data applications, such as video conferencing and online collaboration tools.

The OL-8241-02 also incorporates cutting-edge technologies like Quality of Service (QoS), which prioritizes network traffic based on application requirements. This feature is essential for ensuring that critical applications receive the bandwidth they need, while less critical tasks can be deprioritized during peak usage times. Additionally, the module supports IPv6, which is vital for organizations looking to future-proof their network infrastructure amid the global transition from IPv4.

The ease of management is another highlight of the OL-8241-02, with user-friendly interfaces and compatibility with Cisco's robust management software. This capability allows IT teams to monitor performance metrics, troubleshoot issues, and configure settings with minimal complexity.

In summary, the Cisco Systems OL-8241-02 module stands out for its versatility, performance, and security features. Equipped with the ability to support various protocols, advanced security measures, and efficient traffic management, it proves to be a reliable choice for enterprises aiming to enhance their networking capabilities and ensure seamless operational continuity.
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