HP V1905 Series, Руководство по началу работы

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10
Performing Spot Checks
At frequent intervals, you should visually check the switch. Regular checks can give you an early warning
of a possible failure; any problems can then be attended to when there will be least effect on users.
HP recommends periodically checking the items listed in
Table 41 .
Table 41 Items to Check
Item Operation
Cooling fan
Where possible, check that the cooling fan is operating by listening to the unit. The fan
is fitted near to the front right hand side of the unit (when viewed from the front).
Cabling
Check that all external cabling connections are secure and that no cables are pulled
taut.
Configuring IP Address
The switch’s IP configuration is determined automatically using DHCP, or manually using values you assign.
By default, the switch will use its default IP information. The default IP address is 169.254.xxx.xxx. If the
MAC address is 08004E000102, the IP address would be 169.254.1.2.
Automatic IP Configuration using DHCP
When you use the automatic IP configuration method, the switch tries to obtain its IP information without
requesting user intervention from a DHCP server on the network.
You should use the automatic IP configuration method if:
 Your network uses DHCP to allocate IP information, or
 Flexibility is needed. If the switch is deployed onto a different subnet, it will automatically reconfigure
itself with an appropriate IP address, instead of you having to manually reconfigure the switch.
You can use ip address dhcp-alloc command to define automatic IP configuration method and use display
ip command to view the automatically allocated IP Information through the Console Port (see “ CLI Reference
Guide ”).
Manual IP Configuration
When you configure the IP information manually, the switch remembers the information that you enter until
you change it again.
You should use the manual IP configuration method if:
 You do not have a DHCP server on your network, or
 You want to remove the risk of the IP address ever changing, or

Your DHCP server does not allow you to allocate static IP addresses.