Cabletron Systems 2000 User Manual

Also see for 2000: User guide Getting started guide

Contents

Managing the Hub2-35The SmartSwitch 2000 Chassis ViewPort TypeDisplays the port’s type: FE-100TX (for the FE-100TX Fast Ethernet port module),FE-100FX (for the FE-100FX Fast Ethernet port module), or Unknown (for a portslot with no module installed).Link StateDisplays the current connection status of the selected port: Link or No Link.Current Operational ModeIndicates which of the available operational modes is currently in effect: 10Base-T,10Base-T Full Duplex, 100Base-TX, 100Base-TX Full Duplex, 100Base-FX, or100Base-FX Full Duplex. If the port is still initializing, not linked, or if there is noport module installed in the slot, this field will remain blank.Desired Operational ModeDisplays the operational mode that you have selected for this port, and allowsyou to change that selection. The following operational modes are available foreach port:100Base-TX Auto Negotiation, 10Base-T, 10BASE-T Full Duplex,100Base-TX, and 100Base-TX Full Duplex.100Base-FX 100Base-FX and 100Base-FX Full DuplexNote that if Auto Negotiation is the selected mode, the Current OperationalMode field will indicate which mode was selected by the link partners.See Setting the Desired Operational Mode, on page 2-36, for more information.Advertised AbilitiesFor 100Base-TX ports which have been configured to operate in Auto Negotiationmode, this field allows you to select which of the operational modes available tothe port can be selected by the negotiating link partners. During AutoNegotiation, each of the link partners will advertise all selected modes indescending bandwidth order: 100Base-TX Full Duplex, 100Base-TX, 10Base-T FullDuplex, and 10Base-T. Of the selected abilities, the highest mode mutuallyavailable will automatically be used. If there is no mode mutually advertised, nolink will be achieved.!CAUTIONIf you choose to select a specific mode of operation (rather than auto-negotiation), youshould be sure that the link partner supports the same mode. Otherwise, no link will beachieved.If you select a Full Duplex mode and the link partner supports the same wire speed but notFull Duplex, a link will be achieved, but it will be unstable and will behave erratically.If you select Auto-Negotiation, the local node will try to match the mode of the linkpartner, even if the link partner is not set to auto-negotiate, and even if the local nodemust use a mode which it is not currently advertising.