Fast EtherHub 3500 System User’s Guide
3-2 Setting Up Network Connections
FlexBus 3500 Management Link
The management link in a chain of cascaded hubs must be
connected to manage the stack as a single unit. This means that
only hubs connected using the FlexBus can be controlled by an
SNMP management agent (i.e., Fast EtherHub-12mi). At most, 6
hubs can be managed and linked together using the FlexBus
connection.
Hub ID Setting
In a stacked system, each hub should have a unique ID number
to identify itself. Each hub automatically sets an ID number if
attached to an SNMP management agent through the FlexBus port
(i.e., Fast EtherHub-12mi). When a new hub is inserted in the
stack, the next available hub identifier is assigned to the new hub
(i.e., the identifier numbers are not changed for previously
configured hubs). When the stack includes a management agent,
you can also set hub IDs using the on-board configuration
program. Refer to Configuring Hub Parameters in Chapter 4 for more
information.
Using Management Agents
The Fast EtherHub-12mi SNMP includes an SNMP management
agent. To add SNMP functionality to the entire stack, this hub
type must be included in the stack. To provide in-band access to
the agent you must also attach your network management station
to a the segment that includes the management agent.