Indicates the ssh connection limit that will
be applied when accepting new ssh connections
for a specific host. A value of zero means no
limit will be applied for ssh connections.
Setting this object to a non-zero value will
turn on the 'ssh' bit in the corresponding
ipPermitAccessType. Turnning off the 'ssh' bit
in the corresponding ipPermitAccessType will
reset this ipPermitSshConnectLimit value to
zero.