INT 7A U - Novell NetWare - IPX(Internetwork Packet Exchange) A low-level layer of Novell's NetWare networking software. Driver - internal - IPX(Internetwork Packet Exchange) A low-level layer of Novell's NetWare networking software. GET PACKET SIZE BX = 000Dh Return: AX = maximum packet size CX = retry count SeeAlso: BX=001Ah