Accounting information is owned by the Vc System; it is stored in
the Vc Accounting component, which itself is considered to be a
component on the switch. The Accounting Component contains a
bit map indicating which of the accounting facilities are to be
spooled in the accounting record - for example, bit '0' if set
indicates that the accounting facility with facility code H.00 should
be spooled if present in the Vc for accounting purposes. The data
contained in the Vc Accounting must be identical network wide
even though the component can be changed and upgraded on a
module by module basis.