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Internetworking and Management Overview
Campus-REX RS Interface Card User Manual 7-13
The Campus-REX provides an SNMP agent that supports several MIBs for
the management of the system. The SNMP agent can process datagrams
received from both the Ethernet interface (LAN) and the HDSL interface
(Line). The agent and the protocol stack complies with the following RFCs:
• RFC 1155, Structure of Management Information (SMI)
• RFC 1157, Simple Network Management Protocol (SNMP)
• RFC 826, Address Resolution Protocol (ARP)
• RFC 792, Internet Control Message Protocol (ICMP)
• RFC 791, Internet Protocol (IP)
• RFC 768, User Datagram Protocol (UDP)
MIB and Trap Support
Each managed device has configuration, status, and statistical information
that defines its functionality and operational capabilities. All of these
elements make up the MIB for the device being managed. The MIB defines
the kind of information an NMS can retrieve from a managed device and the
settings an NMS can control in a managed device.
The Campus-REX supports the following MIBs:
• RFC 1213, Management Information Base for Network Management of
TCP/IP-Based Internets: MIB-II. Covers: system, interfaces, IP, ICMP,
UDP, and SNMP groups. The Ethernet interface has the ifIndex value
of 1.
• RFC 1215, A Convention for Defining Traps for Use with the SNMP.
Covers: ColdStart, linkUp, linkDown, and authenticationFailure traps.
Link status traps are sent for events related to Ethernet.
• RFC 1493, Definition of Managed Objects for Bridges. Covers: Base,
Spanning Tree, and transparent bridging groups. The Spanning Tree
MIB can only be accessed if the Spanning Tree protocol is enabled.
• Proprietary REX MIB, an enterprise specific MIB designed for the agent
in the Campus-REX for managing the HDSL portion of the unit.
CAD1069i5.book Page 13 Thursday, May 30, 2002 7:32 AM