1-6 C HAPTER 1: G ETTING S TARTEDn Redundant paths are enabled if the main trafficpaths fail.For more information about STP, refer to “SpanningTree Protocol” on page 5-12.PACEThe Switch 1000 supports PACE (Priority AccessControl Enabled) technology, which allows multime-dia traffic to be carried over standard Ethernet andFast Ethernet LANs. PACE provides two features:n Implicit Class of Service — When multimedia traf-fic is transmitted, it is given a higher prioritythan other data and is therefore forwarded aheadof other data when it arrives at the Switch. TheImplicit Class of Service feature minimizes latencythrough the Switch and protects the quality ofmultimedia traffic.n Interactive Access — When two-way multimediatraffic passes over an Ethernet network, interfer-ence can occur because access to the bandwidthis unequally allocated to traffic in one direction.The Interactive Access feature allocates the avail-able bandwidth equally in both directions, there-fore increasing the quality of the traffic.For more information about setting up PACE on theSwitch, refer to “Setting Up the Switch Unit” and“Setting Up the Switch Ports” in Chapter 4.Switch 1000 on Your NetworkServer ConnectionsWhen connecting servers to the Switch 1000, usethe following rules to ensure that the Switch isoperating at maximum efficiency:n Ideally, any local server should be connected tothe Switch using a 100Mbps port.n If that is not possible, connect the local server toa dedicated 10Mbps port.n If that is not possible and the local server is con-nected to a repeated segment where the traffic ismainly local to that segment, disable IntelligentFlow Management (IFM) on the port to which therepeater is connected.If your network is running a peer-to-peer protocol(for example, Windows 95) and you have multipleendstations connected to the Switch via a repeater,we recommend that you disable IFM on the port towhich the repeater is connected.Network Configuration ExamplesThe following illustrations show some examples ofhow the Switch can be placed on your network.Examples of how the Switch 1000 can be used in aVLAN-based network are given in Chapter 5.
