Cabletron Systems EMM-E6 Configuring RIC MIM Connections, Configuring TPXMIM Connections, 2-30

Using the EMM-E6 Hub View

Configuring RIC MIM Connections

Because each RIC MIM repeats packets independently, you can insert it into the network via backplane channels B or C, or isolate it to act as a self-contained network.

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 the RIC MIM you wish to change, as this menu option applies only to the RIC MIM from 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 the appropriate Network Connection box on the MIM display.

NOTE

Change Channel is the only option on the Network menu which does not apply to all MIMs operating on the same channel! If you wish to change a RIC MIM’s channel assignment, you must do so by accessing the Network menu from each RIC MIM you wish to re-configure.

Note that a RIC MIM in stand-alone mode becomes an “orphan MIM” and is no longer in full communication with the EMM-E6, and most network, module, and port menu options are disabled for that MIM. In addition, unless there is a direct cable connection, the packets it repeats are not being repeated to the other MIMs in the hub. However, you can still use the Network menu to put the RIC MIM back onto Channel B or C to re-enable all menu options and re-establish connection with the hub.

!

CAUTION

If your SPMA workstation is connected to a RIC MIM and you configure that RIC MIM to 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 your station to a port that is active on the network.

NOTE

If the FNB backplane in a non-shunting MMAC is broken by an empty slot between the RIC MIM and the EMM-E6, all MIMs to the left of the break which are operating on channels B and C will revert to the orphan, or stand-alone, state described above. This state change will be reflected in the Hub View display.

Configuring TPXMIM Connections

The TPXMIM provides two levels of FNB connectivity: you can assign the board

as 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-alone

2-30 Managing the Hub