"Ti layman" network knowledge note seven Fast Ethernet channel

The Ethernet channel (ethernetchannel) increases the link bandwidth by bundling multiple Ethernet links, and runs a mechanism to bundle multiple Ethernet ports into a single logical link. The Ethernet channel can be bundled with up to 8 physical links, where the physical link can be twisted or fiber connected.

         Ethernet channel is the switch provides port bundling technology that allows two switches to be connected in parallel across two or more ports while transmitting data to provide higher bandwidth.

Advantages: Load balancing, improve reliability;

Configuration Requirements        

the ports that participate in the bundle must belong to the same VLAN, or both trunk mode (trunk)

If the port configuration is trunk mode, all two ports in the link must be in trunk mode

All ports participating in the bundle must have the same physical parameters, for example, all half-duplex or full-duplex

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The steps to build an Ethernet channel with the SWA and SWB two switch two switches are as follows:

SwA (config) #interface range fastethernet 0/1-3 command explanation: Enter switch A's F0/1-F0/3 interface

SwA (config-if-range) #switchport mode trunk command explanation: Encapsulating the interface as a trunk mode (trunk)

SwA (Config-if-range) #channel-group 1 mode on command explanation: Join the interface to Ethernet channel Group 1.

SwB (config) #interface range fastethernet 0/1-3 command explanation: Enter Switch B's F0/1-F0/3 interface

SwB (config-if-range) #switchport mode trunk command explanation: Encapsulating the interface as a trunk mode (trunk)

SwB (Config-if-range) #channel-group 1 mode on command explanation: add interface to Ethernet Channel Group 1

To view a command:

Use #show running-config Privileged mode

#show EtherChannel 1 Summary to view the configuration of Ethernet Channel 1

#show IP int Brief View the interface status of the switch

#show int F0/1 To view F0/1 port information

#show int Port-channel 1 View bandwidth for Ethernet Channel 1

After the Ethernet channel has been configured, the link rate will increase

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"Ti layman" network knowledge note seven Fast Ethernet channel