Cabletron Systems EMM-E6 manual Load, Traffic, Collisions, Errors

Using the EMM-E6 Hub View

Changing the port display form via the Device menu will affect all manageable ports in the hub; using the Network menu will affect all ports on a specific channel, or network; and using the Module menu will affect all ports on the appropriate module.

NOTE

If there is a TPXMIM in multi-channel mode installed in your EMM-E6-managed hub, the Port Display Form option will not be available from that MIM’s Network menu; in addition, a TPXMIM in multi-channel mode will not respond to changes in Port Display Form made via any other MIM’s Network menu. However, the TPXMIM will always respond to changes in port display form initiated via the Module or Device menus.

For more information about the TPXMIM and its multi-channel capabilities, see Configuring TPXMIM Connections, page 2-30.

To change the port display form:

1.Click in the appropriate area to display the Device, Network, or Module menu (refer to Figure 2-5, page 2-7).

2.Drag down to Port Display Form, then right as necessary to select one of the port display options. The current selection will be displayed in the Port Display Form text box(es) on the module displays.

Port display form options are:

Load

Shows a percentage for each active port that represents that port’s portion of the theoretical maximum traffic level — for Ethernet networks, 10 megabits per second.

Traffic

Displays port traffic data in a packets/second format.

Collisions

Displays port traffic data in a collisions/second format. The EMM-E6 counts both receive collisions — those collisions it detects while receiving a transmission — and transmit collisions —those it detects while transmitting (i.e., the EMM-E6 transmitted one of the colliding packets); however, those counts are combined and a single total value is displayed.

Errors

Shows port traffic errors in an errors/second format. You can display any one of the following types of errors:

•Total errors

•Alignment errors

•CRC (Cyclic Redundancy Check) errors

•Runts

•Giants

2-10 Monitoring Hub Performance