space, which *could* be resolved by ISAMUX/ISANS as applied to the *48* bit
space in exactly the same way. And the 64-bit space.
-# Why not leave this to individual custom vendors to solve on a case by case basis?
+# Why not leave this to individual custom vendors to solve on a case by case basis? <a name="case-by-case"></a>
The suggestion was raised that a custom extension vendor could create
their own CSR that selects between conflicting namespaces that resolve