3com 3300 fx Guía Del Usuario
14
C
HAPTER
2: U
SING
N
ETWORK
S
UPERVISOR
TO
M
ANAGE
Y
OUR
N
ETWORK
There are two steps which are used to construct a map of your network.
Network Supervisor:
Network Supervisor:
1 Finds the devices connected to your network (and builds a model of each
one)
A ping message is sent by Network Supervisor to each IP address in the
range you choose to specify. Each device that responds is then contacted
individually and Network Supervisor constructs a model of that device
from the information it provides.
range you choose to specify. Each device that responds is then contacted
individually and Network Supervisor constructs a model of that device
from the information it provides.
2 Figures out how each device is connected to the rest of your network
Network Supervisor works out the connections by talking to the switches,
routers and hubs on your network.
routers and hubs on your network.
Monitoring Core
Devices and Links
Network Supervisor attempts to identify the core devices and links and
monitor them for you. It judges which devices and links are most
important to keep your network’s central services operating; that is, the
backbone devices of your network. This is your core network.
monitor them for you. It judges which devices and links are most
important to keep your network’s central services operating; that is, the
backbone devices of your network. This is your core network.
For your initial settings, it is probably best to monitor only these devices
which are critical to your network’s operation and performance levels.
which are critical to your network’s operation and performance levels.
Network Supervisor also shows the state of each core link. For example, it
shows whether each core link is up or down. Network Supervisor uses
color-coding to enable easy recognition of the stress level on each device
and link.
shows whether each core link is up or down. Network Supervisor uses
color-coding to enable easy recognition of the stress level on each device
and link.
If there is not enough information for Network Supervisor to discover
what connections are present on a part of the network, it displays a cloud
where it knows that devices are connected but cannot say how.
Unsupported SNMP devices (for example, some non-3Com devices) are
shown in this way.
what connections are present on a part of the network, it displays a cloud
where it knows that devices are connected but cannot say how.
Unsupported SNMP devices (for example, some non-3Com devices) are
shown in this way.
Monitoring Additional Devices and Links
You can also manually start monitoring any other devices or links which
are particularly important to your network.
are particularly important to your network.
For example, you may have a switch which connects a server farm. As this
switch and its links are important to many users, you may want to turn on
monitoring to it and other links like it.
switch and its links are important to many users, you may want to turn on
monitoring to it and other links like it.
A server farm is a collection of servers (for example, file servers and
printers) which are available to groups of users on a network.
printers) which are available to groups of users on a network.