McDATA 316095-B21 - StorageWorks Edge Switch 2/24 Manual page 536

SNMPv3 MIB
G
vacmViewTreeFamilyMask
E/OS SNMP Support Manual
G-36
not-accessible
Max Access
current
Status
The MIB subtree which when combined with the corresponding
Description
instance of vacmViewTreeFamilyMask defines a family of view
subtrees.
Sequence
::= { vacmViewTreeFamilyEntry 2 }
OCTET STRING (SIZE (0..16))
Syntax
read-create
Max Access
current
Status
The bit mask which, in combination with the corresponding instance
Description
of vacmViewTreeFamilySubtree, defines a family of view subtrees.
Each bit of this bit mask corresponds to a sub-identifier of
vacmViewTreeFamilySubtree, with the most significant bit of the i-th
octet of this octet string value (extended if necessary, see below)
corresponding to the (8*i - 7)-th sub-identifier, and the least
significant bit of the i-th octet of this octet string corresponding to the
(8*i)-th sub-identifier, where i is in the range 1 through 16.
Each bit of this bit mask specifies whether or not the corresponding
sub-identifiers must match when determining if an OBJECT
IDENTIFIER is in this family of view subtrees; a '1' indicates that an
exact match must occur; a '0' indicates 'wild card', i.e., any
sub-identifier value matches.
Thus, the OBJECT IDENTIFIER X of an object instance is contained in
a family of view subtrees if, for each sub-identifier of the value of
vacmViewTreeFamilySubtree, either: the i-th bit of
vacmViewTreeFamilyMask is 0, or the i-th sub-identifier of X is equal
to the i-th sub-identifier of the value of vacmViewTreeFamilySubtree.
If the value of this bit mask is M bits long and there are more than M
sub-identifiers in the corresponding instance of
vacmViewTreeFamilySubtree, then the bit mask is extended with 1's
to be the required length.
Note that when the value of this object is the zero-length string, this
extension rule results in a mask of all-1's being used (i.e., no 'wild
card'), and the family of view subtrees is the one view subtree