cevcSIForwardBdNumber2kBitmap
1.3.6.1.4.1.9.9.613.1.4.10.1.6
This object specifies a string of octets containing one bit
per Bridge domain per service instance(generally we have one
bridge domain per nontrunk service instance but can have more
than one bridge configured with a trunk service instance).
The first octet corresponds to Bridge domains with
Bridge domain ID values of 1024 through 1031; the second
octet to Bridge domains 1032 through 1039; etc. Thus, this
128-octet bitmap represents bridge domain ID value 1024~2047.
For each Bridge domain configured, the bit corresponding to
that bridge domain is set to 1. SNMP Administrator uses
cevcSIForwardBdNumberBase + (position of the set bit in
bitmap)to calculate BD number of a service instance.
Note that if the length of this string is less than 128 octets,
any 'missing' octets are assumed to contain the value zero. An
NMS may omit any zero-valued octets from the end of this string
in order to reduce SetPDU size, and the agent may also omit
zero-valued trailing octets, to reduce the size of GetResponse
PDUs.