Chapter 1 Configuring Interfaces and Circuits

Configuring Interfaces

Specifying VLAN Trunking for an Interface

To activate VLAN trunking for a CSS interface, use the trunk command. You specify all VLANs that include the specified port as part of the VLAN. The trunk command also converts the link in to a trunk link. Use the vlan command to specify the number of each VLAN to be associated with the Gigabit Ethernet or Fast Ethernet port. Enter an integer from 1 to 4094 as the VLAN identifier.

The following list defines the maximum number of VLANs supported by the specific CSS models:

CSS 11501 and CSS 11503 - A maximum of 256 VLANs per CSS and 64 VLANs per port (FE or GE)

CSS 11506 - A maximum of 512 VLANs per CSS and 64 VLANs per port (FE or GE)

The CSS software has a dependency when using the trunk command. For trunking to be enabled, all VLAN bridging commands for any active VLAN must first be disabled for the Gigabit Ethernet or Fast Ethernet interface by using the no bridge vlan, no bridge port-priority, no bridge state, and no bridge pathcost commands. If you do not disable VLAN bridging on an interface, the CSS software instructs you to do so.

When you specify the trunk command, enter the word vlan in lowercase letters and include a space before the VLAN number (for example, vlan 2). The CSS automatically prompts you to create the specified VLAN (where y instructs the software to create the VLAN and n cancels the VLAN creation).

For example, to configure Gigabit Ethernet port 1 in slot 1 for use in VLAN2, VLAN3, and VLAN9, enter:

(config-if[1/1])# trunk (config-if[1/1])# vlan 2 Create VLAN<2>, [y/n]:y (config-if-vlan[1/1-2])# vlan 3 Create VLAN<3>, [y/n]:y (config-if-vlan[1/1-3])# vlan 9 Create VLAN<9>, [y/n]:y (config-if-vlan[1/1-9])#

The no trunk command turns off all trunking, removes all specified vlan commands associated with the interface, and deletes this information from the running configuration. The interface is returned to VLAN1 by default.

 

Cisco Content Services Switch Routing and Bridging Configuration Guide

1-12

OL-8241-02

Page 40
Image 40
Cisco Systems OL-8241-02 manual Specifying Vlan Trunking for an Interface

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.