jnd@sms.com (Jose Nabielsky) (09/21/90)
Request: We are looking for a few good FDDI components to complete a campus-wide FDDI backbone design, and request assistance to find these. 1. FDDI DAS Concentrator: We call this (mythical) device the "FDDI-In-A-Can." The "FDDI-In-A-Can" is an intelligent wiring concentrator which terminates 'N' Dual Attached Stations (e.g., FDDI Campus Routers), providing both manual and electronic means to insert, remove, and test the DAS stations attached to the "FDDI-In-A-Can." First, it should support optical bypass on all DAS ports. Second, it should be highly reliable. Third, it should support (minimally) out-of-band management using an asynchronous port. And, fourth, it is highly desirable this device support in-band management and, if so, using the SNMP protocol. (The recently-announced DEC 500 FDDI Concentrator is a SAS, not DAS, concentrator.) 2. Single-Mode/Multi-Mode Fiber-Pair Repeater: The distance between buildings exceeds (in a few instances) 2 miles. (We are using a physical star topology.) Thus the need for a single-mode/multi-mode fiber-pair repeater. 3. FDDI MIC Connectors: Stainless-steel (by AMP) or ceramic (by Sumitomo)? That is the question. (We prefer buying American, everything else being equal.) If your answers are directed to me personally, I will summarixe the relevant information to the net. Thanks. -Jose Nabielsky jnd@sms.com