Cabletron Systems Spectrum EMM-E6 User Manual

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

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Cabletron Systems Spectrum EMM-E6 User Manual Manual pdf 46 page image

Using the EMM-E6 Hub View2-30Managing the HubConfiguring RIC MIM ConnectionsBecause each RIC MIM repeats packets independently, you can insert it into thenetwork via backplane channels B or C, or isolate it to act as a self-containednetwork.To change a RIC MIM’s channel assignment:1. Click mouse button 3 in the appropriate area to display the Network menu(refer to Figure 2-5, page 2-7). Be sure to display the Network menu from theRIC MIM you wish to change, as this menu option appliesonly to the RIC MIMfrom which it was accessed.2. Drag down to Change Channel, and right to select Channel B, Channel C,or Standalone. The new channel assignment will be displayed in theappropriate Network Connection box on the MIM display.Note that a RIC MIM in stand-alone mode becomes an “orphan MIM” and is nolonger in full communication with the EMM-E6, and most network, module, andport menu options are disabled for that MIM. In addition, unless there is a directcable connection, the packets it repeats are not being repeated to the other MIMsin the hub. However, you can still use the Network menu to put the RIC MIMback onto Channel B or C to re-enable all menu options and re-establishconnection with the hub.Configuring TPXMIM ConnectionsThe TPXMIM provides two levels of FNB connectivity: you can assign the boardas a whole or each individual port to one of the three internal FNB channels: A, B,or C; in addition, you can configure the whole board to operate in a stand-aloneNOTEChange Channel is the only option on the Network menu which does not apply to allMIMs operating on the same channel! If you wish to change a RIC MIM’s channelassignment, you must do so by accessing the Network menu from each RIC MIM youwish to re-configure.!CAUTIONIf your SPMA workstation is connected to a RIC MIM and you configure that RIC MIMto stand-alone mode, you will cut your station’s contact with the network. If this happens,you will not be able to access the network again until you physically reconnect yourstation to a port that is active on the network.NOTEIf the FNB backplane in a non-shunting MMAC is broken by an empty slot between theRIC MIM and the EMM-E6, all MIMs to the left of the break which are operating onchannels B and C will revert to the orphan, or stand-alone, state described above. Thisstate change will be reflected in the Hub View display.