A
2 – SNMP Overview
Table 2-1. Trap Severity Levels
Event Type | Severity Level |
|
|
Unknown | 1 |
Emergency | 2 |
Alert | 3 |
Critical | 4 |
Error | 5 |
Warning | 6 |
Notify | 7 |
Info | 8 |
Debug | 9 |
Mark | 10 |
|
|
2.4
Management Information Base
Management information bases (MIBs) define the properties of the managed object within the device to be managed. Every managed device keeps a database of values for each definition written in the MIB. It is not the actual database itself; it is implementation dependant. Definition of the MIB conforms to the Structure of Management Information (SMI) given in Request For Comment (RFC) 1155. The latest Internet MIB is given in RFC 1213, and is sometimes called
2.5
User Datagram Protocol
SANbox/SANbox2 switches support the following User Datagram Protocol (UDP) settings:
Agents “listen” on UDP port 161.
Responses are sent back to the originating Network Management Station (NMS) port from a dynamic port, although many agents use port 161 also for this target.
The maximum SNMP message size is 65507 octets (maximum UDP message size).
The minimum receive packet size for SNMP implementations is 484 octets in length.
Agent and Network Monitoring Systems are responsible for determining error recovery.
