Cabletron Systems 6H129-08 Benutzerhandbuch

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Chapter 5: Local Management
5-18
6H128-08 and 6H129-08 User’s Guide
Subnet Mask (Read-Only)
Displays the subnet mask for the chassis. A subnet mask “masks out” the 
network bits of the IP address by setting the bits in the mask to 1 when the 
network treats the corresponding bits in the IP address as part of the 
network or subnetwork address, or to 0 if the corresponding bit identifies 
the host. The 6C105 chassis automatically uses the default subnet mask 
that corresponds to the IP class that was entered in the IP address field. 
For details about how to change the Subnet Mask from its default value, 
refer to 
Chassis Date (Modifiable)
Contains a value that the chassis recognizes as the current date. When the 
chassis date is modified and saved all interface modules installed in the 
chassis are set to this date. To set a new chassis date, refer to 
Chassis Time (Modifiable)
Contains a value that the chassis recognizes as the current time. When the 
chassis time is modified and saved, all interface modules installed in the 
chassis are set to this time. To enter a new time, refer to 
Screen Refresh Time (Modifiable)
Contains the rate at which the screens are updated. This setting 
determines how frequently (in seconds) information is updated on the 
screen. To enter a new update time, refer to 
.
NOTE
When a valid IP address is assigned, the Subnet Mask field 
automatically enters the default mask that corresponds with the 
class of IP entered in the IP Address field. Some firmware 
revisions do support changing the chassis subnet mask from 
the default value. Refer to the Release Notes to ensure that the 
Subnet Mask is a modifiable field.