Cabletron Systems Spectrum EMM-E6 User Manual

Also see for SPECTRUM: User guide User guide User guide User guide User guide

Contents

Cabletron Systems Spectrum EMM-E6 User Manual Manual pdf 45 page image

Managing the Hub2-29Using the EMM-E6 Hub ViewDevice ConfigurationThis polling interval controls how often a survey is conducted of the type ofequipment installed in the EMM-E6-managed hub; information from this pollwould change the Hub View to reflect the addition and/or removal of a MIM orMIMs.Port Operational StateThis polling interval controls the update of the information displayed in the PortStatus boxes for each port in the hub. Port state information includes link state(the color code) and admin state (on or off).StatisticsThis polling interval controls how often the information displayed in the PortStatus boxes is updated when the Port Display Form is set to a rate or percentage,and how often the Network, Module, and Port statistics counts are updated.Configuring FNB ConnectionsCabletron Systems’ MultiChannel technology allows you to configure multiple,separately-repeated channels in the same MMAC. Hubs which incorporate theFlexible Network Bus (FNB) design have three internal channels: the originalpower and management channel (designated as Channel A), and two additionalEthernet channels (designated as Channel B and Channel C) that are repeatedseparately.Cabletron’s original Media Interface Modules (MIMs) are automaticallyconfigured to operate on the original backplane channel, Channel A. However,Cabletron Systems’ latest family of MIMs — Repeater, or RIC, MIMs (theFORMIM, CXRMIM, TPRMIM, and TPXMIM) — can be selectively configured tooperate on the B or C channel, or, since they provide their own repeaterfunctionality, in a stand-alone mode.In addition, the newest member of the RIC MIM family — the TPXMIM —provides the ability to assign the entire board to a channel (bank switching), or toassign each individual port to a channel (port assignment). Also unique to theTPXMIM is the ability to assign each of its ports or the board as a whole toChannel A. The following sections describe how to configure the FNB connectionsfor these MIMs.NOTESPMA generates network traffic when it retrieves the above-described information; keepin mind that shorter intervals mean increased network traffic. Range limits for thesepolling times are 0-999,999 seconds; however, an entry of 0 will be treated as a 1.