Cisco Systems IC-23 manual Controlling the Sending of Commands to the LAN Extender, IC-54

Page 32

Configuring LAN Interfaces

Configuring a LAN Extender Interface

To control priority queueing on a LAN Extender interface, perform the following tasks:

Set the priority by protocol type.

Assign a priority group to an interface.

To establish queueing priorities based on the protocol type, use one of the following commands in global configuration mode:

Command

Purpose

 

 

priority-list list protocol protocol

Establishes queueing priorities based on the protocol type.

{high medium normal low}

 

or

 

priority-list list protocol bridge {high

 

medium normal low} list list-number

 

 

 

You then assign a priority list to an interface. You can assign only one list per interface. To assign a priority list to a LAN Extender interface, use the following command in interface configuration mode:

Command

Purpose

 

 

lex priority-group group

Assigns a priority list to a LAN Extender interface, which activates priority

 

output queueing on the LAN Extender.

 

 

Controlling the Sending of Commands to the LAN Extender

Each time the core router sends a command to the LAN Extender, the LAN Extender responds with an acknowledgment. The core router waits for the acknowledgment for a predetermined amount of time. If it does not receive an acknowledgment in this time period, the core router sends the command again.

By default, the core router waits 2 seconds for an acknowledgment from the LAN Extender. You might want to change this interval if your connection to the LAN Extender requires a different amount time. To determine whether commands to the LAN Extender are timing out, use the debug lex rcmd privileged EXEC command. To change this interval, use the following command in interface configuration mode:

Command

Purpose

 

 

lex timeout milliseconds

Sets the amount of time that the core router waits to receive an acknowledgment

 

from the LAN Extender.

 

 

By default, the core router sends each command ten times before giving up. The core router displays an error message when it gives up sending commands to the LAN Extender. To change this default, use the following command in interface configuration mode:

Command

Purpose

 

 

lex retry-count number

Sets the number of times the core router sends a command to the LAN Extender

 

before giving up.

 

 

Cisco IOS Interface Configuration Guide

IC-54

Image 32
Contents Configuring an Ethernet or Fast Ethernet Interface IC-23Ethernet and Fast Ethernet Interface Configuration Task List IC-24IC-25 Specifying an Ethernet or Fast Ethernet InterfaceSpecifying an Ethernet Encapsulation Method IC-26 Specifying the Media and Connector TypeSpecifying Full-Duplex Operation IC-27 Configuring Fast Ethernet 100BASE-TExtending the 10BASE-T Capability Configuring PA-12E/2FE Port Adapter IC-28Configuring the PA-12E/2FE Port Adapter IC-29IC-30 Monitoring and Maintaining the PA-12E/2FE Port Adapter IC-31IC-32 IC-33 Configuring Fast EtherChannelConfiguring the 100VG-AnyLAN Port Adapter Fast EtherChannel Configuration Task List IC-34Configuring the Port-Channel Interface IC-35Configuring the Fast Ethernet Interfaces IC-36Configuring a Fiber Distributed Data Interface IC-37Using Connection Management Information IC-38IC-39 Fddi Configuration Task ListSpecifying a Fddi IC-40 Enabling Full-Duplex Mode on the FddiEnabling Fddi Bridging Encapsulation Setting the Token Rotation Time Setting the Transmission Valid TimerControlling the Transmission Timer Modifying the C-Min TimerModifying the TB-Min Timer Modifying the Fddi Timeout TimerSetting the Bit Control Controlling SMT Frame ProcessingSetting Fddi Frames Per Token Limit Controlling the CMT MicrocodeStarting and Stopping Fddi IC-43Configuring a Hub Interface Controlling the Fddi SMT Message Queue SizePreallocating Buffers for Bursty Fddi Traffic IC-44Enabling a Hub Port Disabling or Enabling Automatic Receiver Polarity ReversalDisabling or Enabling the Link Test Function IC-45IC-46 Enabling Source Address ControlEnabling Snmp Illegal Address Trap Configuring a LAN Extender Interface Connecting a LAN Extender to a Core RouterExpanded View of the Connection to a Core Router IC-47Installing a LAN Extender at a Remote Site Discovering the MAC AddressUpgrading Software for the LAN Extender Management of the LAN Extender InterfaceConfiguring the LAN Extender IC-49IC-50 LAN Extender Interface Configuration Task ListConfiguring and Creating a LAN Extender Interface Defining Packet Filters IC-51Filtering by MAC Address and Vendor Code IC-52Controlling Priority Queueing IC-53Controlling the Sending of Commands to the LAN Extender IC-54IC-55 Restarting the LAN ExtenderDownloading a Software Image to the LAN Extender Troubleshooting the LAN Extender IC-56System OK IC-57Configuring a Token Ring Interface IC-58Token Ring Interface Configuration Task List Dedicated Token Ring Port AdapterSpecifying a Token Ring Interface Enabling Early Token ReleaseLAN Interface Configuration Examples Configuring PCbus Token Ring Interface ManagementEnabling Token Ring Concentrator Port Monitoring and Maintaining the PortEthernet Encapsulation Enablement Example Full Duplex Enablement Operation ExamplePA-12E/2FE Port Configuration Examples IC-61PA-VG100 Port Adapter Configuration Example IC-62Fast EtherChannel Configuration Examples IC-63Fddi Frames Configuration Example IC-64Hub Configuration Examples Hub Port Startup ExamplesHub Port Shutdown Examples IC-65LAN Extender Enablement Interface Example LAN Extender Interface Access List ExamplesSnmp Illegal Address Trap Enablement for Hub Port Example MAC Address Filtering ExampleEthernet Type Code Filtering Example IC-67IC-68

IC-23 specifications

Cisco Systems IC-23 is a robust networking device designed to address the ever-evolving demands of modern enterprises. As part of Cisco's extensive portfolio, the IC-23 serves as an ideal solution for organizations seeking to enhance their network performance, reliability, and scalability.

One of the standout features of the Cisco IC-23 is its high-speed connectivity options. With support for both wired and wireless communications, this device can seamlessly integrate into a wide range of network architectures. It offers multiple Gigabit Ethernet ports, enabling rapid data transfer and facilitating the connection of numerous devices without compromising performance.

Another key characteristic of the IC-23 is its advanced security protocols. Data breaches and cyber threats are persistent concerns in today's digital landscape, and Cisco addresses these challenges head-on with robust security measures. The IC-23 incorporates features such as firewall capabilities, intrusion detection systems, and secure VPN support, ensuring that sensitive information remains protected while traversing the network.

The IC-23 also leverages Cisco's renowned software-defined networking (SDN) capabilities. This technology allows businesses to manage their network resources dynamically, ensuring optimal performance based on real-time demands. As a result, organizations can easily adjust their network configurations to meet fluctuating workloads, enhancing both efficiency and cost-effectiveness.

Scalability is another critical feature of the IC-23, making it an excellent choice for growing companies. Cisco has designed this device to accommodate increasing data traffic without necessitating a complete overhaul of existing infrastructure. This adaptability ensures that organizations can expand their networks smoothly as their operations evolve.

Moreover, the IC-23 supports a variety of network management tools, providing IT teams with the insights needed to monitor performance and troubleshoot issues proactively. Cisco's user-friendly interface simplifies the process of network management, allowing administrators to optimize resources and maintain continuous uptime.

In conclusion, Cisco Systems IC-23 stands out as a highly capable networking solution tailored for modern enterprises. With its high-speed connectivity, comprehensive security features, SDN capabilities, scalability, and intuitive management tools, the IC-23 is well-equipped to meet the demands of today’s digital environments. As organizations continue to navigate the complexities of the digital age, the IC-23 prepares them to thrive in an increasingly interconnected world.