about the Multicast

zebaidrees
New Member

Installing libPLN libraries

Posts: 9

about the Multicast Apr 21, 2020 12:17:34 GMT

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Post by zebaidrees on Apr 21, 2020 12:17:34 GMT

Hi, wolf
I want to know about how you have implemented multicast PTP as I have seen, in the libptp coding defined MAC address is C0:FF:EE:BA:D0:1D that seems a unicast MAC address. can you please provide brief info about that? what is the use of this address and how you emulate multicast via broadcast? according to annex F destination MAC address should be 01:80:C2:00:00:0E but I could not find it any where in libptp. Thanks

jordi
New Member

Posts: 5

about the Multicast May 3, 2020 11:37:51 GMT

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Post by jordi on May 3, 2020 11:37:51 GMT

Hi zebaidress,

I think that the MAC adresses are assigned to the message in the PTP_EtherMap module of a node.
Depending on the message type, a forwardable (01:1B:19:00:00:00) or non forwardable (01:80:C2:00:00:0E) multicast address is used to fill the destination filed in the MAC layer.
You can check this when you ran the simulation in the event log.

However, take into account that each node will have their own MAC address assign by its PTP_stack module.

I hope this gives some help

Best regards,
Jordi

zebaidrees
New Member

Installing libPLN libraries

Posts: 9

about the Multicast May 4, 2020 11:45:47 GMT

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Post by zebaidrees on May 4, 2020 11:45:47 GMT

May 3, 2020 11:37:51 GMT jordi said:

Hi zebaidress,

I think that the MAC adresses are assigned to the message in the PTP_EtherMap module of a node.
Depending on the message type, a forwardable (01:1B:19:00:00:00) or non forwardable (01:80:C2:00:00:0E) multicast address is used to fill the destination filed in the MAC layer.
You can check this when you ran the simulation in the event log.

However, take into account that each node will have their own MAC address assign by its PTP_stack module.

I hope this gives some help

Best regards,
Jordi

Thanks Jordi, I will check this.. looks useful...

about the Multicast

Post by zebaidrees on Apr 21, 2020 12:17:34 GMT

Post by jordi on May 3, 2020 11:37:51 GMT

Post by zebaidrees on May 4, 2020 11:45:47 GMT

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