Owner`s manual

4–2 DEChub 900 MultiSwitch Owner’s Manual
Using the In-Band IP Address of the Hub Manager
The Hub Manager does not have an in-band connection for communicating over all
network types to a network management system. Instead, you use a network module
that supports IP services as the primary path for in-band management.
The following is a list of common network modules that support IP services, refer to
your module’s documentation to determine if it provides this capability:
• DECrepeater 900TM
• DECrepeater 900GM
• DECrepeater 900FP
• DECrepeater 90FS
• DECrepeater 90TS
• DECconcentrator 900MX
• DECbridge 900MX
• DECbridge 900MP
To establish IP services for the Hub Manager, install a module that provides IP ser-
vices into a slot of the DEChub 900 MultiSwitch chassis. The Hub Manager uses this
module to communicate with the network management station (NMS). The combina-
tion of the IP address and slot location establish the primary path for in-band man-
agement. If you move the module to another slot, you must reconfigure the hub to
utilize the new slot.
When a network module occupies a hub slot designated as the IP services slot, and
that module is replaced (hot-swapped) with another IP services-type module, delete
the address resolution protocol (ARP) cache from the NMS. Otherwise, it could take
up to 45 minutes for the ARP cache to age out, depending on your system.