Network management of real-time embedded processors [SSC]
Proceedings of International Conference on Particle Accelerators
The Superconducting Super Collider Laboratory is a complex of particle accelerators being built in Ellis County, Texas. It will have a dedicated global communications network that will deliver control messages and provide for general data acquisition. This network will connect thousands of computer nodes over a very large geographic area. In order to meet the demanding availability requirements being levied on the system, it will need comprehensive network management. A large number of the
... ter nodes are embedded systems that traditionally do not support network management services. This presents unique challenges to st,andard network management practices. The Simple Network Management Protocol, SNMP, is widely accepted by industry as a tool to manage network devices. In this paper we will examine the performance characteristics and usefulness of an SUMP agent in a real-time environment I. Network Management Historical Perspective The Internet Activities Board (IAB) has spent considerable time focusing on standards for network management. In 1987 a group of engineers implemented the Simple Gateway Management Protocol (SGMP). Around the same time, the OS1 network management documents specified CMIP over TCP (CMOT). (CMIP is the OS1 Conlmon Management Information Protocol, and TCP is t.he Transmission Control Protocol). These two groups met to determine if a consensus could be reached on a network management approach. The result of the meeting was that the SGMP protocol would be extended to address the needs of network devices other than gateways. It would be called the Simple Net,work Management Protocol (SNMP). This was to become the short term solution for network management in the community while a second group worked on the OS1 approach as a long term solution. A third group was to design a common framework for network management so as to make the migration from SNMP to CMOT easier. By the fall of 1989 a number of vendors had implementations of SNMP installed, and it became the de facto operational standard for network management of TCP/IP based networks[ 11. II.