📄 rfc1493.txt
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DESCRIPTION "A unicast MAC address for which the bridge has forwarding and/or filtering information." REFERENCE "IEEE 802.1D-1990: Section 3.9.1, 3.9.2" ::= { dot1dTpFdbEntry 1 } dot1dTpFdbPort OBJECT-TYPE SYNTAX INTEGER ACCESS read-only STATUS mandatory DESCRIPTION "Either the value '0', or the port number of the port on which a frame having a source address equal to the value of the corresponding instance of dot1dTpFdbAddress has been seen. A value of '0' indicates that the port number has not been learned but that the bridge does have some forwarding/filtering information about this address (e.g. in the dot1dStaticTable). Implementors are encouraged to assign the port value to this object whenever it is learned even for addresses for which the corresponding value of dot1dTpFdbStatus is not learned(3)." ::= { dot1dTpFdbEntry 2 }Decker, Langille, Rijsinghani & McCloghrie [Page 24] RFC 1493 Bridge MIB July 1993 dot1dTpFdbStatus OBJECT-TYPE SYNTAX INTEGER { other(1), invalid(2), learned(3), self(4), mgmt(5) } ACCESS read-only STATUS mandatory DESCRIPTION "The status of this entry. The meanings of the values are: other(1) : none of the following. This would include the case where some other MIB object (not the corresponding instance of dot1dTpFdbPort, nor an entry in the dot1dStaticTable) is being used to determine if and how frames addressed to the value of the corresponding instance of dot1dTpFdbAddress are being forwarded. invalid(2) : this entry is not longer valid (e.g., it was learned but has since aged-out), but has not yet been flushed from the table. learned(3) : the value of the corresponding instance of dot1dTpFdbPort was learned, and is being used. self(4) : the value of the corresponding instance of dot1dTpFdbAddress represents one of the bridge's addresses. The corresponding instance of dot1dTpFdbPort indicates which of the bridge's ports has this address. mgmt(5) : the value of the corresponding instance of dot1dTpFdbAddress is also the value of an existing instance of dot1dStaticAddress." ::= { dot1dTpFdbEntry 3 }Decker, Langille, Rijsinghani & McCloghrie [Page 25] RFC 1493 Bridge MIB July 1993 -- Port Table for Transparent Bridges dot1dTpPortTable OBJECT-TYPE SYNTAX SEQUENCE OF Dot1dTpPortEntry ACCESS not-accessible STATUS mandatory DESCRIPTION "A table that contains information about every port that is associated with this transparent bridge." ::= { dot1dTp 4 } dot1dTpPortEntry OBJECT-TYPE SYNTAX Dot1dTpPortEntry ACCESS not-accessible STATUS mandatory DESCRIPTION "A list of information for each port of a transparent bridge." INDEX { dot1dTpPort } ::= { dot1dTpPortTable 1 } Dot1dTpPortEntry ::= SEQUENCE { dot1dTpPort INTEGER, dot1dTpPortMaxInfo INTEGER, dot1dTpPortInFrames Counter, dot1dTpPortOutFrames Counter, dot1dTpPortInDiscards Counter } dot1dTpPort OBJECT-TYPE SYNTAX INTEGER (1..65535) ACCESS read-only STATUS mandatory DESCRIPTION "The port number of the port for which this entry contains Transparent bridging management information." ::= { dot1dTpPortEntry 1 } -- It would be nice if we could use ifMtu as the size of the -- largest INFO field, but we can't because ifMtu is definedDecker, Langille, Rijsinghani & McCloghrie [Page 26] RFC 1493 Bridge MIB July 1993 -- to be the size that the (inter-)network layer can use which -- can differ from the MAC layer (especially if several layers -- of encapsulation are used). dot1dTpPortMaxInfo OBJECT-TYPE SYNTAX INTEGER ACCESS read-only STATUS mandatory DESCRIPTION "The maximum size of the INFO (non-MAC) field that this port will receive or transmit." ::= { dot1dTpPortEntry 2 } dot1dTpPortInFrames OBJECT-TYPE SYNTAX Counter ACCESS read-only STATUS mandatory DESCRIPTION "The number of frames that have been received by this port from its segment. Note that a frame received on the interface corresponding to this port is only counted by this object if and only if it is for a protocol being processed by the local bridging function, including bridge management frames." REFERENCE "IEEE 802.1D-1990: Section 6.6.1.1.3" ::= { dot1dTpPortEntry 3 } dot1dTpPortOutFrames OBJECT-TYPE SYNTAX Counter ACCESS read-only STATUS mandatory DESCRIPTION "The number of frames that have been transmitted by this port to its segment. Note that a frame transmitted on the interface corresponding to this port is only counted by this object if and only if it is for a protocol being processed by the local bridging function, including bridge management frames." REFERENCE "IEEE 802.1D-1990: Section 6.6.1.1.3" ::= { dot1dTpPortEntry 4 } dot1dTpPortInDiscards OBJECT-TYPE SYNTAX Counter ACCESS read-onlyDecker, Langille, Rijsinghani & McCloghrie [Page 27] RFC 1493 Bridge MIB July 1993 STATUS mandatory DESCRIPTION "Count of valid frames received which were discarded (i.e., filtered) by the Forwarding Process." REFERENCE "IEEE 802.1D-1990: Section 6.6.1.1.3" ::= { dot1dTpPortEntry 5 } -- The Static (Destination-Address Filtering) Database -- Implementation of this group is optional. dot1dStaticTable OBJECT-TYPE SYNTAX SEQUENCE OF Dot1dStaticEntry ACCESS not-accessible STATUS mandatory DESCRIPTION "A table containing filtering information configured into the bridge by (local or network) management specifying the set of ports to which frames received from specific ports and containing specific destination addresses are allowed to be forwarded. The value of zero in this table as the port number from which frames with a specific destination address are received, is used to specify all ports for which there is no specific entry in this table for that particular destination address. Entries are valid for unicast and for group/broadcast addresses." REFERENCE "IEEE 802.1D-1990: Section 6.7.2" ::= { dot1dStatic 1 } dot1dStaticEntry OBJECT-TYPE SYNTAX Dot1dStaticEntry ACCESS not-accessible STATUS mandatory DESCRIPTION "Filtering information configured into the bridge by (local or network) management specifying the set of ports to which frames received from a specific port and containing a specific destination address are allowed to be forwarded." REFERENCE "IEEE 802.1D-1990: Section 6.7.2"Decker, Langille, Rijsinghani & McCloghrie [Page 28] RFC 1493 Bridge MIB July 1993 INDEX { dot1dStaticAddress, dot1dStaticReceivePort } ::= { dot1dStaticTable 1 } Dot1dStaticEntry ::= SEQUENCE { dot1dStaticAddress MacAddress, dot1dStaticReceivePort INTEGER, dot1dStaticAllowedToGoTo OCTET STRING, dot1dStaticStatus INTEGER } dot1dStaticAddress OBJECT-TYPE SYNTAX MacAddress ACCESS read-write STATUS mandatory DESCRIPTION "The destination MAC address in a frame to which this entry's filtering information applies. This object can take the value of a unicast address, a group address or the broadcast address." REFERENCE "IEEE 802.1D-1990: Section 3.9.1, 3.9.2" ::= { dot1dStaticEntry 1 } dot1dStaticReceivePort OBJECT-TYPE SYNTAX INTEGER ACCESS read-write STATUS mandatory DESCRIPTION "Either the value '0', or the port number of the port from which a frame must be received in order for this entry's filtering information to apply. A value of zero indicates that this entry applies on all ports of the bridge for which there is no other applicable entry." ::= { dot1dStaticEntry 2 } dot1dStaticAllowedToGoTo OBJECT-TYPE SYNTAX OCTET STRING ACCESS read-write STATUS mandatory DESCRIPTION "The set of ports to which frames received from a specific port and destined for a specific MACDecker, Langille, Rijsinghani & McCloghrie [Page 29] RFC 1493 Bridge MIB July 1993 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 incl⌨️ 快捷键说明
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