Mapping class D to Ethernet physical address
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Posted by vicky on June 11, 2008, 4:08 am
Please log in for more thread options Is the Multicast IP to mac resolution is done at host pc's end also. to make a multicast MAC address For exp if multicast ip address is 227.2.3.7 then its mac address 01-00-5e-02-03-07 is made at host pc end , as then it send packet by setting this mac address to the DA field. Vikrant | ||||||||||||||||
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Posted by Albert Manfredi on June 11, 2008, 11:07 am
Please log in for more thread options Yes. And the host joining a multicast does the same thing, setting its Ethernet interface to receive frames from the MAC address 01-00-5e-02-03-07. Bert | ||||||||||||||||
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Posted by vicky on June 11, 2008, 2:24 pm
Please log in for more thread options >
> > Is the Multicast IP to mac resolution =A0 is done at host pc's end
> > also. > > to make a multicast MAC address >
> > For exp
> > if multicast ip address is >
> > 227.2.3.7
>
> > then its mac address
>
> > 01-00-5e-02-03-07
>
> > is made at host pc end , as then it send packet by setting this mac
> > address to the DA field. >
> Yes. And the host joining a multicast does the same thing, setting its > Ethernet interface to receive frames from the MAC address > 01-00-5e-02-03-07. > > Bert ----------------------------------------------------------------------------= -------------- Thanks Mr Bert Ok , Is the multicating related enteries which made in layer 2 switch are always be static or it may be aging bit set , or... the behaviour of enteries for multicast table in layer 2 switch is depand on the behaviour or say which type of register support by a switch controller (either it static or dynamic) please tell me....... | ||||||||||||||||
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Posted by Albert Manfredi on June 11, 2008, 4:07 pm
Please log in for more thread options
> Ok =A0, Is the multicating related enteries which made in layer 2 switch
> are always be static or it may be aging bit set , or... the behaviour > of enteries for multicast table in layer 2 switch is depand on the > behaviour =A0or say which type of register support by a switch > controller (either it static or dynamic) Are you talking about IGMP snooping here? If yes, the forwarding of multicasts to a port times out, as stated in RFC 4541, bottom of page 5. It is also dynamic, though, listening for IGMP leave messages. Have you read through this yet? http://www.ietf.org/rfc/rfc4541.txt?number=3D4541 Bert | ||||||||||||||||
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Posted by vicky on June 12, 2008, 12:47 am
Please log in for more thread options >
> > Ok =A0, Is the multicating related enteries which made in layer 2 switch=
> > are always be static or it may be aging bit set , or... the behaviour
> > of enteries for multicast table in layer 2 switch is depand on the > > behaviour =A0or say which type of register support by a switch > > controller (either it static or dynamic) >
> Are you talking about IGMP snooping here? If yes, the forwarding of > multicasts to a port times out, as stated in RFC 4541, bottom of page > 5. It is also dynamic, though, listening for IGMP leave messages. > > Have you read through this yet? > > http://www.ietf.org/rfc/rfc4541.txt?number=3D4541 > > Bert ------------------------------------ No i m taking about the enteries made in layer 2 switch in its multicast table is what , either it static or dynamic. Vikrant | ||||||||||||||||
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> also.
> to make a multicast MAC address
>
> For exp
> if multicast ip address is
>
> 227.2.3.7
>
> then its mac address
>
> 01-00-5e-02-03-07
>
> is made at host pc end , as then it send packet by setting this mac
> address to the DA field.