ocr: Major Vendors Market Shares Network IBM Managers 9.7% 4.5% Cabletron Sun 13.2%0 1 30.7% - Others Hewiett- 14.1% Packard 27.8% SUURCE: NIERNATIONAL DAIA COHP- Leading the Way. According to Intemational Data Corp., 21,196 enterprise network management plattorms were shipped in 1994.