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About configuration information
contiguous bits that begin immediately after the network part of the original
IP address and extend into the host part of that address.
Subnetworks are indicated by the presence of a subnet mask in the device.
A subnet mask has the same format as an IP address, but all the bits of the
network and subnet parts are 1. All the bits of the host part are 0. For
example, if the manager of a network with Class B addresses wanted to
create eight subnetworks, the subnet mask would be 255.255.224.0.
The subnet mask for the WaveSwitch 100 is specified by giving the number
of bits of the host part of the IP address that are to be used in the subnet
mask.
Permissible values are 1 through 16, allowing the specification of up to
65536 subnetworks, depending on the class of the original IP address.
The following table contains examples of subnet masks for different classes
of network addresses.
Class
A
B
C
Name
This is an ASCII text string that identifies the WaveSwitch 100 to users of
the management software, such as Accounting Ethernet Switch #2.
Location
This is an ASCII text string that gives the physical location of the unit, such
as Second Floor, Equipment Bay 3.
Contact person
This is an ASCII text string that gives the name of the person, department,
or company to contact about the operation of the WaveSwitch 100, for
example, John Smith, Premium Networks Inc., 555-1234.
72 WaveSwitch 100 Ethernet Switch User Manual
Number
Network
of
address
subnets
40.0.0.0
4096
129.1.0.0
1024
193.1.1.0
16
Subnet
bits
Subnet mask
12
255.255.240.0
10
255.255.255.192
4
255.255.255.240
Value
entered
12
10
4
12195
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