Specify in the clause 6.10 that the PIP function contains a Table with one or more entries in which each entry contains a B-MAC value and its connection_identifier value.
Specify in clause 6.10.1 that there is a learning process which stores the received B-SA values in the B-MAC fields of the Table and associates a connection_identifier value with each unique B-SA; describe that there is an aging process that will delete an entry after some time.
Specify in clause 6.10.2 that this table is queried to determine the destination_address (B-DA) value.
Relace the following text in 6.10:
"Each Provider Instance Port shall have an individual Backbone MAC address referred to as the PIP MAC address (26.4) for use by the functions specified in this subclause."
by:
"The Provider Instancee Port shall support the following parameters for use by these functions:
a) An individual Backbone MAC address referred to as the PIP MAC address (26.4) for use by the functions specified in this subclause;
b) A Connection Identifier table.
The Connection Identifier table is configurable by learning and has one entry for each individual backbone MAC address which is active in a Backbone Service Instance.
The Connection Identifier table is used to hold each of the learned Individual Backbone MAC Address values and their associated connection_identifier value.
The Connection Identifier table shall contain the following fields for each entry:
a) A Connection Identifier. This contains the identifier used in the EISS and ISS SAPs in a Provider Instance Port to represent an Individual Backbone MAC Address.
b) Individual Backbone MAC Address.
The Learning Process receives the source backbone MAC addresses of received frames.
The Learning Process is not invoked for a backbone service instance for which the case the operPointToPointMAC parameter has a value of TRUE.
When invoked, the Learning Process shall create or update a Dynamic Connection Identifier Entry that specifies the connection_identifier associated with the frame?s source backbone address, if and only if the resulting number of entries would not exceed the capacity of the Table. If the Table is already filled to capacity, but a new entry would otherwise be made, then an existing entry may be removed to make room for the new entry.
Dynamic Connection Identifier Entries are created and updated by the Learning Process. They shall be automatically removed after a specified time, the Ageing Time, has elapsed since the entry was created or last updated.
No more than one Dynamic Connection Identifier Entry shall be created in the Table for a given combination of Backbone Source Address and Connection Identifier.
Dynamic Connection Identifier Entries cannot be created or updated by management.
The ageing out of Dynamic Connection Identifier Entries ensures that source backbone address will not unnecessary occupy entries in the Table after a change in a backbone service instance.
The Ageing Time may be set by management. A range of applicable values and a recommended default is specified in Table 8-6; this is suggested to remove the need for explicit configuration in most cases. If the value of Ageing Time can be set by management, the Bridge shall have the capability to use values in the range specified, with a granularity of 1 s."
Relace the following text in 6.10.2:
"If enableConnectionIdentifier is TRUE, the connection_identifier is not null, and the connection_identifier references an address retained by the Provider Instance Port, then the value for the destination_address is the address referenced by the connection_identifier. Otherwise, the value for the destination_address is the contents of the Default Backbone Destination parameter of the Virtual Instance Port."
by
"If enableConnectionIdentifier is TRUE, the connection_identifier is not null, and the connection_identifier associates with an entry in the Dynamic Connection Idenfier Entry, then the value for the destination_address is the backbone MAC address in the Dynamic Connection Identifier Entry associated by the connection_identifier value. Otherwise, the value for the destination_address is the contents of the Default Backbone Destination parameter of the Virtual Instance Port"