Cabletron Systems ATX, Справочное руководство

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Chapter 6: Bridge MIB
6-16 ATX MIB Reference Guide
The unit does not store the value 0. Instead, a SetRequest with a value 0 will
cause the unit to automatically create entries for all ports that have no other
applicable entries.
dot1dStaticAllowedToGoTo {dot1dStaticEntry 3}
Octet String Read-Write
The set of ports to which frames received from a specific port and destined for a
specific MAC address, are allowed to be forwarded. Each octet within the value
of this object specifies a set of eight ports, with the first octet specifying ports 1
through 8, the second octet specifying ports 9 through 16, etc. Within each octet,
the most significant bit represents the lowest numbered port, and the least
significant bit represents the highest numbered port. Thus, each port of the bridge
is represented by a single bit within the value of this object. If that bit has a value
of 1 then that port is included in the set of ports; the port is not included if its bit
has a value of 0. [Note that the setting of the bit corresponding to the port from
which a frame is received is irrelevant.]
On the unit, each static address entry exists internally as part of a full matrix of
entry ports and “allowed-to-go” exit ports. The value of
dot1dStaticAllowedToGoTo corresponds to one row of the matrix. Creation of
the first entry causes the entire matrix to be created. Rows are created for all other
entries with dot1dStaticAllowedToGoTo values of zero. Note that the creation of
a static entry for an entry port causes the MAC address to be treated according to
the matrix and precludes any dynamic learning of that MAC address.
dot1dStaticStatus {dot1dStaticEntry 4}
Integer Read-Write
This object indicates the status of this entry. other (1) - this entry is currently in
use but the conditions under which it will remain so are different from each of the
following values. invalid (2) - writing this value to the object removes the
corresponding entry. permanent (3) - this entry is currently in use and will remain
so after the next reset of the bridge. deleteOnReset (4) - this entry is currently in
use and will remain so until the next reset of the bridge. deleteOnTimeout (5) -
this entry is currently in use and will remain so until it is aged out.
Static entries are always permanent (3). SetRequests may only specify invalid
(2), in which case, the entry will be immediately deleted. Deleting an entry
causes all entries with the dot1dStaticAddress to be deleted, regardless of the
dot1dStaticReceivePort.