Hi Behringer,
When I read the section 6.10.5 ACP Vlong Addressing Sub-Scheme，I was confused
about the following content:
50 78
+---------------------++-----------------------------+----------+
| (base scheme) || Node-ID |
| || Registrar-ID | Node-Number| V |
+---------------------++--------------+--------------+----------+
46 33/17 8/16
Figure 6: ACP Vlong Addressing Sub-Scheme
…
o Registrar-ID: To maximize Node-Number and V, the Registrar-ID is
reduced to 46 bits. This still allows to use the MAC address of a
registrar by removing the V and U bits from the 48 bits of a MAC
address (those two bits are never unique, so they cannot be used
to distinguish MAC addresses).
o If the first bit of the "Node-Number" is "1", then the Node-Number
is 17 bit long and the V field is 16 bit long. Otherwise the
Node-Number is 33 bit long and the V field is 8 bit long. "0" bit
Node-Numbers are intended to be used for "general purpose" ACP
nodes that would potentially have a limited number (< 256) of
clients (ASA/Autonomic Functions or legacy services) nof the ACP
that require separate V(irtual) addresses. "1" bit Node-Numbers
are intended for ACP nodes that are ACP edge nodes (see
Section 8.1.1) or that have a large number of clients requiring
separate V(irtual) addresses. For example large SDN controllers
with container modular software architecture (see Section 8.1.2).
According the above content, Node-ID(78bits) is composed of Registrar-ID,
Node-Number and V fields. But:
(1) When the first bit of Node-Number is 1, 17(Node-Number) + 16(V) +
46(Registrar-ID) = 33 + 46 = 79
(2) When the first bit of Node-Number is 0, 33(Node-Number) + 8(V) +
46(Registrar-ID) = 41 + 46 = 97
So the result confused me!
Please check the above section again when you pleasure.
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