Cisco Systems IC-23 manual Specifying an Ethernet or Fast Ethernet Interface, IC-25

Page 3

Configuring LAN Interfaces

Configuring an Ethernet or Fast Ethernet Interface

Specifying an Ethernet or Fast Ethernet Interface

To specify an Ethernet interface and enter interface configuration mode, use one of the following commands in global configuration mode:

Command

 

Purpose

 

 

interface ethernet number

Begins interface configuration.

 

 

interface ethernet slot/port

Begins interface configuration for the Cisco 7200 and Cisco 7500 series

 

 

routers.

 

 

 

interface ethernet

 

Begins interface configuration for Cisco 7500 series routers.

slot/port-adapter/port

 

 

 

 

 

interface fastethernet

number

Begins interface configuration for the Cisco 4000 series with a Fast Ethernet

 

 

NIM installed.

 

 

 

interface fastethernet

slot/port

Specifies a Fast Ethernet interface and enters interface configuration mode on

 

 

the Cisco 7200 series routers.

 

 

 

interface fastethernet

 

Specifies a Fast Ethernet interface and enters interface configuration mode on

slot/port-adapter/port

 

the Cisco 7500 series routers.

 

 

 

Use the show interfaces fastethernet command to display the Fast Ethernet slots and ports. The Fast Ethernet NIM and the FEIP default to half-duplex mode.

Specifying an Ethernet Encapsulation Method

Currently, there are three common Ethernet encapsulation methods:

The standard ARPA Ethernet Version 2.0 encapsulation, which uses a 16-bit protocol type code (the default encapsulation method)

SAP IEEE 802.3 encapsulation, in which the type code becomes the frame length for the IEEE 802.2 LLC encapsulation (destination and source Service Access Points, and a control byte)

The SNAP method, as specified in RFC 1042, “Standard for the Transmission of IP Datagrams Over IEEE 802 Networks,” which allows Ethernet protocols to run on IEEE 802.2 media

The encapsulation method you use depends upon the routing protocol you are using, the type of Ethernet media connected to the router or access server, and the routing or bridging application you configure.

Establish Ethernet encapsulation of IP packets by using one of the following commands in interface configuration mode:

Command

Purpose

 

 

encapsulation arpa

Selects ARPA Ethernet encapsulation.

 

 

encapsulation sap

Selects SAP Ethernet encapsulation.

 

 

encapsulation snap

Selects SNAP Ethernet encapsulation.

 

 

For an example of selecting Ethernet encapsulation for IP, see the “Ethernet Encapsulation Enablement Example” section.

Cisco IOS Interface Configuration Guide

IC-25

Image 3
Contents IC-23 Configuring an Ethernet or Fast Ethernet InterfaceIC-24 Ethernet and Fast Ethernet Interface Configuration Task ListSpecifying an Ethernet or Fast Ethernet Interface Specifying an Ethernet Encapsulation MethodIC-25 Specifying the Media and Connector Type Specifying Full-Duplex OperationIC-26 Configuring Fast Ethernet 100BASE-T Extending the 10BASE-T CapabilityIC-27 IC-28 Configuring PA-12E/2FE Port AdapterIC-29 Configuring the PA-12E/2FE Port AdapterIC-30 IC-31 Monitoring and Maintaining the PA-12E/2FE Port AdapterIC-32 Configuring Fast EtherChannel Configuring the 100VG-AnyLAN Port AdapterIC-33 IC-34 Fast EtherChannel Configuration Task ListIC-35 Configuring the Port-Channel InterfaceIC-36 Configuring the Fast Ethernet InterfacesIC-37 Configuring a Fiber Distributed Data InterfaceIC-38 Using Connection Management InformationFddi Configuration Task List Specifying a FddiIC-39 Enabling Full-Duplex Mode on the Fddi Enabling Fddi Bridging EncapsulationIC-40 Modifying the C-Min Timer Setting the Token Rotation TimeSetting the Transmission Valid Timer Controlling the Transmission TimerControlling SMT Frame Processing Modifying the TB-Min TimerModifying the Fddi Timeout Timer Setting the Bit ControlIC-43 Setting Fddi Frames Per Token LimitControlling the CMT Microcode Starting and Stopping FddiIC-44 Configuring a Hub InterfaceControlling the Fddi SMT Message Queue Size Preallocating Buffers for Bursty Fddi TrafficIC-45 Enabling a Hub PortDisabling or Enabling Automatic Receiver Polarity Reversal Disabling or Enabling the Link Test FunctionEnabling Source Address Control Enabling Snmp Illegal Address TrapIC-46 IC-47 Configuring a LAN Extender InterfaceConnecting a LAN Extender to a Core Router Expanded View of the Connection to a Core RouterManagement of the LAN Extender Interface Installing a LAN Extender at a Remote SiteDiscovering the MAC Address Upgrading Software for the LAN ExtenderIC-49 Configuring the LAN ExtenderLAN Extender Interface Configuration Task List Configuring and Creating a LAN Extender InterfaceIC-50 IC-51 Defining Packet FiltersIC-52 Filtering by MAC Address and Vendor CodeIC-53 Controlling Priority QueueingIC-54 Controlling the Sending of Commands to the LAN ExtenderRestarting the LAN Extender Downloading a Software Image to the LAN ExtenderIC-55 IC-56 Troubleshooting the LAN ExtenderIC-57 System OKIC-58 Configuring a Token Ring InterfaceEnabling Early Token Release Token Ring Interface Configuration Task ListDedicated Token Ring Port Adapter Specifying a Token Ring InterfaceMonitoring and Maintaining the Port LAN Interface Configuration ExamplesConfiguring PCbus Token Ring Interface Management Enabling Token Ring Concentrator PortIC-61 Ethernet Encapsulation Enablement ExampleFull Duplex Enablement Operation Example PA-12E/2FE Port Configuration ExamplesIC-62 PA-VG100 Port Adapter Configuration ExampleIC-63 Fast EtherChannel Configuration ExamplesIC-64 Fddi Frames Configuration ExampleIC-65 Hub Configuration ExamplesHub Port Startup Examples Hub Port Shutdown ExamplesMAC Address Filtering Example LAN Extender Enablement Interface ExampleLAN Extender Interface Access List Examples Snmp Illegal Address Trap Enablement for Hub Port ExampleIC-67 Ethernet Type Code Filtering ExampleIC-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.