Config# ip opportunistic all | Cisco Systems OL-8241-02 specs

Chapter 6 Configuring the Internet Protocol

Configuring IP Opportunistic Layer 3 Forwarding

Using opportunistic Layer 3 forwarding, the CSS inspects the IP packet header to determine the destination IP address. Instead of forwarding the packet to Router1, the CSS forwards the packet directly to End Station B. Because the CSS handles the packet only once, the router and uplink are not used and network resources are conserved.

The options for this global configuration mode command are as follows:

•local (default) - Applies opportunistic Layer 3 forwarding if the destination IP address belongs to a node that resides on one of the subnets directly attached to the CSS and the CSS is aware of an ARP resolution for that node. Because the local option is the default, use the no ip opportunistic command to reconfigure IP opportunistic Layer 3 forwarding to the local setting.

•all - Applies opportunistic Layer 3 forwarding if the destination IP address matches any entry in the CSS routing table. We do not recommend this option if the topology includes multiple routers and the CSS does not know all of the routes the routers are aware of.

•disabled - The CSS does not perform opportunistic Layer 3 forwarding. Regular Layer 3 forwarding is performed only for packets that contain the CSS destination MAC address.

For example, to configure IP opportunistic Layer 3 forwarding to all, enter:

(config)# ip opportunistic all

To reconfigure IP opportunistic Layer 3 forwarding to the default of local enter:

(config)# no ip opportunistic

When you configure ip opportunistic all, you can use the ip route originated-packetscommand (see the “IP Configuration Quick Start” section) to configure routes that the CSS uses to reach devices, but does not use as opportunistic routes for forwarding traffic. Routes created using the ip route originated-packetscommand apply only to packets that originate on the CSS. Packets and flows forwarded by the CSS do not use these routes.

For example:

(config)# ip route 0.0.0.0 /0 192.168.1.7 originated-packets

	Cisco Content Services Switch Routing and Bridging Configuration Guide
6-12	OL-8241-02

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.

Cisco Systems OL-8241-02 manual Config# ip opportunistic all, Config# no ip opportunistic

Models: OL-8241-02