BM Sending a Command to the MME

BM Sends the Command

Figure 34-6 on page 1015 illustrates the BM sending a command to a device's MME. The command is sent in a request GMP MAD with the following characteristics:

• ManagementClass = BM.

• Method = BMSend.

• AttributeID = the ID of one of the attributes listed in Table 34-5 on page 1004 that is accessed using the BMSend() method.

• AttributeModifier = 00000000h. Bit 0 = 0 indicates that this is a request (i.e., a command) packet.

MME Executes the Command

Refer to Figure 34-5 on page 1001. The incoming request MAD is received by the port's GSI. The GSI uses the MAD's ManagementClass (BM, in this case) to route the MAD to the module's BMA for processing. The BMA passes the request to the MME for execution. The MME executes the request and passes the result back to the BMA.

MME Generates a Response

Some commands require a response while others do not. If the command requires a response, the BMA formulates a BM MAD with the following characteristics:

• ManagementClass = BM.

• Method = BMSend.

• AttributeID = the ID of the same attribute that was received in the request packet.

• AttributeModifier = 00000001h. Bit 0 = 1 indicates that this is a response packet.