Cabletron Systems EMM-E6 Configuring FNB Connections, Device Configuration, Port Operational State

Using the EMM-E6 Hub View

Device Configuration

This polling interval controls how often a survey is conducted of the type of equipment installed in the EMM-E6-managed hub; information from this poll would change the Hub View to reflect the addition and/or removal of a MIM or MIMs.

Port Operational State

This polling interval controls the update of the information displayed in the Port Status boxes for each port in the hub. Port state information includes link state (the color code) and admin state (on or off).

Statistics

This polling interval controls how often the information displayed in the Port Status 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.

NOTE

SPMA generates network traffic when it retrieves the above-described information; keep in mind that shorter intervals mean increased network traffic. Range limits for these polling times are 0-999,999 seconds; however, an entry of 0 will be treated as a 1.

Configuring FNB Connections

Cabletron Systems’ MultiChannel technology allows you to configure multiple, separately-repeated channels in the same MMAC. Hubs which incorporate the Flexible Network Bus (FNB) design have three internal channels: the original power and management channel (designated as Channel A), and two additional Ethernet channels (designated as Channel B and Channel C) that are repeated separately.

Cabletron’s original Media Interface Modules (MIMs) are automatically configured to operate on the original backplane channel, Channel A. However, Cabletron Systems’ latest family of MIMs — Repeater, or RIC, MIMs (the FORMIM, CXRMIM, TPRMIM, and TPXMIM) — can be selectively configured to operate on the B or C channel, or, since they provide their own repeater functionality, 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 to assign each individual port to a channel (port assignment). Also unique to the TPXMIM is the ability to assign each of its ports or the board as a whole to Channel A. The following sections describe how to configure the FNB connections for these MIMs.

Managing the Hub 2-29