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Posted by Kott on January 11, 2006, 6:34 am
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Hello -
Thanks for the clarification . I just connected a L2 Switch from
Extreme and found out that from all the Ports , the BPDU has encoded
the Same MAC address.this Encoded MAC address is the same as Source MAC
Address in the L2 Fields.
thanks and Best Regards
Kott
Rich Seifert wrote:
>
> > Thanks for the same! I will explain my question with some more
> > information.
> > I have a 16 port switch for which I am implementing IEEE 802.1D -2004
> > spec.
> >
> > As per the PICS conformance in A.9 (Addressing) ADDR-1 it mentions that
> > it is Mandatory for each Port have a Seperate MAC Address (Sec 7.12.2)
> > ?
> >
>
> That is correct.
>
> > My question :Does this mean that each BPDU frame Txed from a Port be
> > assigned a unique Universally Administered MAC address? Does the
> > frame in the BPDU data part (Bridge Identifier) need to encode a unique
> > MAC address for each of the Ports on my switch?
> >
>
> Again, correct.
>
> > In the L2 Source Address MAC field I do have a globally unique MAC
> > address for the whole switch
> >
>
> Using one MAC address for all BPDUs emitted from all ports on a single
> bridge is non-conformant behavior.
>
>
> --
> Rich Seifert Networks and Communications Consulting
> 21885 Bear Creek Way
> (408) 395-5700 Los Gatos, CA 95033
> (408) 228-0803 FAX
>
> Send replies to: usenet at richseifert dot com
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