DUA1640-5AAA02
5-6
C
HAPTER
 5: M
ANAGING
 
THE
 PS H
UB
Requirements for
Managing Over the
Network
When managing your stack over the network, you must remember that 
(regardless of your method of management):
■
The hub or stack must be correctly configured with IP information. 
You must make a direct management connection through the 
console port to do this (or use a BOOTP server).
IP addresses are unique, no two hubs must have the same IP address. 
If you have no previous knowledge of IP, refer to “IP Addresses” on 
page 5-7
.
If you have a BOOTP server, it can automatically assign your network 
equipment, including the PS Hubs, with IP information so that it can be 
communicated with and managed over the network. Refer to the 
documentation that accompanies your BOOTP server for more 
information.
■
Any IP information configured for a hub in a stack can be used to 
access the whole stack. If the stack is physically split in two, the IP 
information remains with the hub and is used by its half; the other 
half has no IP information so it becomes unmanageable over the 
network. You can configure more than one hub in a stack with IP 
information. We recommend you do this for the top and bottom 
hubs to obtain redundant management capabilities (should the stack 
split).
■
IP must be correctly set up for your management station.
■
You can manage the hub or stack over the network, through any of 
the ports. However, for the communication to work over the 
network, the port through which your communication reaches the 
stack must be connected to segment 1 (either directly or indirectly) 
of the hub with the IP address configured. If you are going to use 
load balancing to configure your segments, it is a good idea to fix 
this port to segment 1.
■
You can manage a mixed stack of PS Hub 40 and PS Hub 50 units. 
If you have multiple PS Hub 50 units, only one of the hubs’ segment 
switch will be active, refer to “Multiple PS Hub 50 Units in a Stack” 
on page 2-4
.