Dell PowerConnect 2708 User Manual

Also see for 2724 - PowerConnect Switch: Appendix Datasheet Getting started guide

Contents

Dell PowerConnect 2708 User Manual Manual pdf 12 page image

12VLAN Supported FeaturesVLAN SupportVLANs are collections of switching ports that comprise a single broadcast domain. Packets areclassified as belonging to a VLAN based on either the VLAN tag or based on a combination of theingress port and package contents. Packets sharing common attributes can be grouped in the sameVLAN.Port Based Virtual LANs (VLANs)Port-based VLANs classify incoming packets to VLANs based on their ingress port.Link AggregationThe PowerConnect 2708/2716/2724 /2748 switches support up to six aggregated links. Each of thesix aggregated links may be defined with up to four member ports to form a single Link AggregatedGroup (LAG).The benefits of this facility are:• Fault tolerance protection from physical link disruption• Higher bandwidth connections• Improved bandwidth granularity• High bandwidth server connectivityA LAG is composed of ports with the same speed set to full-duplex operation.BootP and DHCP ClientsDHCP (Dynamic Host Configuration Protocol) enables additional setup parameters to be receivedfrom a network server upon system startup. DHCP service is an on-going process. DHCP is anextension to BootP.The BootP client is operational if there is a corrupted or invalid software image. The BootP clientthen continuously attempts to find a BootP server, by sending BootP requests to all ports on thedefault VLAN, until a BootP server replies. The information replied is then used to provide theswitch system with a TFTP server IP address and a download file name. The switch can thenconfigure these values to the TFTP client and try to download a valid runtime image.Class of Service (CoS) FeaturesThe PowerConnect 2708/2716/2724 /2748 system enables users to define various services for trafficclasses of service. The underlying mechanism for supporting bandwidth management and controlis based on the use of multiple priority queues for classifying traffic. The switches support fourqueues per port.