9030367 E7 Configuration Views
4-21
Hub Redundancy Management
This button allows you to access the IRBM Bridge Control View. Table 4-13
provides the information contained in the view.
Hub Redundancy Management
The hub redundancy management features described in this section include
information specific to the following Cabletron hub devices:
• IRM2
• IRM3
• MRXI
• MiniMMAC
SPECTRUM allows redundant “circuit” connections between any two or more
hub devices that have redundant capability in their firmware. A circuit is
represented by a cable connection from one module port on a primary hub
device to one or more module ports on secondary hub devices. The cable
connections can use any valid cable type, including thin-net, coaxial, fiber
optic, or AUI. The terminating connectors used depend on the type of cable
connecting the module ports.
Any two or more cable connections create a complete circular “circuit”
pathway between the two devices. One pathway is always set up as primary
and the others as secondary. The secondary circuit becomes active if the
Control
Table 4-13. IRBM Bridge Control View Fields
Field Definition
Current Bridge
Status
The status of the bridge, for example, ON-LINE, STAND BY,
or DISABLED.
Bridge Status
Control
Enables or disables the bridge.
Bridge Restart Forces the bridge to undergo a software reset.
Bridge Settings Restores the bridge settings to their default values.
NOTE
The SIRM and the IRBM hub devices do not have redundant circuit
compatibility available in their device firmware.