Dell PowerEdge 1655MC System Configuration Manual

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Contents

Dell PowerEdge 1655MC System Configuration Manual Manual pdf 16 page image

1-12 System Configuration Guidew w w . d e l l . c o m | s u p p o r t . d e l l . c o m In Figure 1-5, a four-port channel is set up on the external ports of the network switchmodules. A channel is a group of multiple physical lines where a control protocol logicallymakes the links aggregate into a single virtual link. The channel provides high bandwidthand link failover availability. You can select the number of uplink ports to aggregate (2 to 4)depending on your bandwidth needs. The more uplink ports that are aggregated, the morebandwidth you have into and out of the system. A channel can be created either statically ordynamically, depending on the capabilities of the external network switch. The staticchannel is compatible with Cisco EtherChannel. The dynamic channel uses IEEE 802.3adlink aggregation control protocol (LACP).NOTE: Do not connect multiple uplink ports to an external network switch withoutusing a link aggregation protocol. The spanning tree protocol blocks three of thenetwork connections to resolve the loops.A channel can be configured using the network switch module browser-based GUI (usingthe Link Aggregation tab) or through the command-line interface using the serial port. Theports on the external switch must have EtherChannel- or LACP- compatible channelsconfigured.Configuring a Static ChannelTo configure a static channel on the network switch module from the system managementmodule serial port, perform the following steps:1 Type connect switch-x, where x is the switch number.2 At the # prompt, type:#Config(config)#interface port-channel 1(config-if)#exit(config)#interface ethernet 1/7(config-if)#channel-group 1(config)#exitwhere # indicates the privileged mode, (config) represents the global configurationmode, and (config-if) represents the interface configuration mode.3 Repeat the commands in step 2 on ports 8, 9, and 10.A static trunk of the four uplink ports is created.4 Repeat steps 1 through 3 for the second network switch module.5 To save your configuration, type #copy running-config startup-config.0w440eb1.fm Page 12 Monday, October 28, 2002 2:23 PM