Specifications

NB20E, NB25E, and NB30 Configuration Views
Device Configuration
Configuration Views
4-6
Cabletron SNMP Bridges
Management Module Guide
STA Protocol
The spanning tree algorithm under which the bridge is operating. Selections
include: 802.1 compliant spanning tree algorithm environment (802.1), DEC
LAN Bridge 100 environment (DEC), and without spanning tree algorithm
enabled (None). The default is 802.1.
The Device Switch Settings section of the Bridge Setup Information View has
six additional read-only parameters. Table 4-1 provides a list of the
parameters.
The Topology Information button accesses the Topology Information View.
This view provides the following information:
Model Name
The user-defined name of the bridge model.
Time Topology Change
The time, in seconds, that has elapsed since the bridge’s Topology Change
Flag last recorded the value of a topology change.
Table 4-1. Bridge Setup Information View Parameters
Field Description
Broadcasts Indicates whether the bridge will forward Broadcast
packets across the wide area transmission link.
Filtered means that packets will not be forwarded,
Forwarded means that they will be forwarded.
ROOT Indicates whether the bridge has the Root Switch
enabled or disabled. OFF means the Root Switch is
disabled, ON means that it is enabled.
Switch 1 In the Up position this switch indicates the bridge is
configured to Data Mode Control Signal Switch, The
Down position indicates the bridge is configured to T1
Timing Mode Switch.
Switch 2 In the Up position this switch indicates that the
Spanning Tree Algorithm Switch is Enabled. The
Down position indicates that the switch is Disabled.
Switch 3 This switch selects the T1 frame format. In the Up
position this switch indicates the bridge is configured
to ESF frame format, the Down position selects the D4
frame format. Both bridges must use the same frame
format.
Switch 4 This switch is not used by the NB30 bridge.
Topology Information