Design of PTN OAM interaction interface

1. CCM : CCM Packets , unpacking, sending, and receiving packets are FPGA to achieve. The network administrator configures the relevant properties, the software encapsulates the API, and then invokes the underlying provided interface for configuration. Requires an interface function that provides configuration-related registers at the bottom.

2. LB : LBM and the LBR the encapsulation and delivery are FPGA to complete, CPU responsible for invoking interface configuration related register parameters. Requires an interface function that provides configuration-related registers at the bottom.

3. AIS : Packet and unpacking of related packets by CPU to complete, and then by Switch sent. Requires an interface function that provides configuration-related registers at the bottom.

4. LCK : The same AIS .

5. APS: Link failure detection byCCMwhen a link to an end-network element is found to be invalid .APSmessages. Local network Element receivedAPSafter the message is delivered directly toSwitch, and then bySwitchon hand toCPU,CPUmakeAPSthe message is parsed and then notifiedSwitchmake the relevant protection switch. Need to provide the underlyingCPUInteractiveAPSthe relevant interface of the message.

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6.         DM:DMMpacket of packets byCPUfinish, place timestamp related fields first0, and then giveFPGAhit the start timestamp and send to the peer network element. WhenFPGAreceived on the end of the network element sent backDMRafter the message, the cut-off time stamp, handed over toCPU,CPUsubtract two timestamp from the sending delay and submit it to the network administrator. Need to provide the underlyingCPUmakeDMinterface for message interaction.

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7. LM : The specific process with DM , just replace the timestamp with a counter.

8. LT : Because LT function is not yet relevant to the implementation of the standard, mobile PTN The overall requirements document is recommended in the LBM to implement, and the implementation needs to maintain a certain number of routing tables, so this feature needs to be customized.

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Design of PTN OAM interaction interface