IBM TotalStorage DS300 Best Practices Manual page 590

ip_numb/mask
where /mask is a netmask size (see netmask)
ip_numb netmask
where ip_numb defines the IP address and netmask defines the netmask
(see netmask)
ip_numb
An IP number in the conventional dotted quad format, as shown in this example:
192.193.194.195
level
Some commands take an event log level (also known as a severity). These levels
are listed here from most severe (highest) to least severe (lowest).
Fatal
Serious
Error
Warning
Information
Audit
*_lists
Some parameters are described as lists, which are supplied by entering the list of
elements separated by spaces. Normally, the list is the last thing on a line; when
it's not, the next parameter must be introduced by a fixed label to distinguish it
from being part of the list.
netmask
A netmask splits an IP number into a network part and a host part. A netmask
consists of a bit mask that starts with a set of bits at 1 followed by a set of bits at
0. It may not have 1s and 0s mixed up.
A netmask can be represented two ways. The examples shown here refer to the
same netmask:
/23
255.255.254.0
572
IBM TotalStorage DS300 and DS400 Best Practices Guide
The number of bits set in the network part.
The set bits displayed in the same way as an IP number