Randall R. Stewart, with Qiaobing Xie, is the designer of the SCTP protocol. Mr. Stewart originally invented the protocol while at Motorola. Subsequently, Mr. Stewart and Dr. Xie worked together to perfect it and submit it to the Internet Engineering Task Force (IETF), the leading Internet technical standards body. Both men are the principal authors and editors of the protocol drafts. They also developed the reference implementation. Mr. Stewart is a Senior Engineer at Cisco Systems.