Contains the netmask or prefix length of the network. This entry specifies how many most-significant bits (MSB) of the prefix must match to the IP address. The prefix length must exactly match this value unless Length-min and Length-max are set to values not equal to zero.
If the value is "0", the prefix for this rule is a match if it comes from same IP address family as that specified under IP address.
- SNMP ID:
 - 2.93.5.1.3
 - Console path:
 - Setup > Routing-Protocols > Filter > Prefix-List
 - Possible values:
 Max. 3 characters from [0-9]
- Default:
 - empty