Cisco Systems IC-23 manual Fast EtherChannel Configuration Task List, IC-34

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Configuring LAN Interfaces

Configuring Fast EtherChannel

links. Unicast, broadcast, and multicast traffic is distributed across the links providing higher performance and redundant parallel paths. In the event of a link failure, traffic is redirected to remaining links within the Fast EtherChannel without user intervention.

In this release of the Fast EtherChannel feature, IP traffic is distributed over the port-channel interface while traffic from other routing protocols is sent over a single link. Bridged traffic is distributed based on the Layer 3 information in the packet. If the Layer 3 information does not exist in the packet, the traffic is sent over the first link.

Fast EtherChannel supports all features currently supported on the Fast Ethernet interface. You must configure these features on the port-channel interface rather than on the individual Fast Ethernet interfaces. Fast EtherChannel connections are fully compatible with Cisco IOS virtual LAN (VLAN) and routing technologies. The Inter-Switch Link (ISL) VLAN trunking protocol can carry multiple VLANs across a Fast EtherChannel, and routers attached to Fast EtherChannel links can provide full multiprotocol routing with support for host standby using Host Standby Router Protocol (HSRP).

The port-channel (consisting of up to four Fast Ethernet interfaces) is treated as a single interface. Port-channel is used in the Cisco IOS software to maintain compatibility with existing commands on the Catalyst 5000 switch. You create the Fast EtherChannel by using the interface port-channelinterface configuration command. You can assign up to four Fast Ethernet interfaces to a port-channel by using the channel-groupinterface configuration command.

Fast EtherChannel also supports the following two features:

Support for host standby using Host Standby Router Protocol (HSRP)

For more information about configuring HSRP, refer to the “Configuring IP Services” chapter in the Cisco IOS IP and IP Routing Configuration Guide.

Support for Cisco Express Forwarding (CEF) and distributed CEF (dCEF)

For more information about configuring CEF, refer to the “Cisco Express Forwarding” chapter in the Cisco IOS Switching Services Configuration Guide.

For information on how to configure Ethernet or Fast Ethernet, see the tasks listed in the “Configuring an Ethernet or Fast Ethernet Interface” section.

Fast EtherChannel Configuration Task List

Perform the tasks in the following sections to configure Fast EtherChannel. To configure Fast

EtherChannel, perform the following required steps:

1.Create a port-channel interface and assign an IP address.

2.Assign the Fast Ethernet interfaces (up to four) to the port-channel interface.

For information on other configuration tasks for the Fast EtherChannel, see the “Configuring an Ethernet or Fast Ethernet Interface” section.

For information on other commands that can be used by the Fast EtherChannel, refer to the other configuration guides in the Cisco IOS documentation set.

Cisco IOS Interface Configuration Guide

IC-34

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Contents Configuring an Ethernet or Fast Ethernet Interface IC-23Ethernet and Fast Ethernet Interface Configuration Task List IC-24Specifying 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 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 Configuring Fast EtherChannel Configuring the 100VG-AnyLAN Port AdapterIC-33 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-38Fddi Configuration Task List Specifying a FddiIC-39 Enabling Full-Duplex Mode on the Fddi Enabling Fddi Bridging EncapsulationIC-40 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-45Enabling Source Address Control Enabling Snmp Illegal Address TrapIC-46 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-49LAN Extender Interface Configuration Task List Configuring and Creating a LAN Extender InterfaceIC-50 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-54Restarting the LAN Extender Downloading a Software Image to the LAN ExtenderIC-55 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

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