This object contains the first 2048 bits of the 4096 bit vector
indicating which SVLAN IDs are assigned to this service instance. The
lowest order bit of the first octet corresponds to SVLAN 1, while the
highest order bit of the last octet corresponds to SVLAN 2048. A bit
that is on (equal to 1) indicates that the corresponding SVLAN ID is
assigned to this service instance.