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Chapter 10
SpeedTouch™ Monitoring
E-DOC-CTC-20051017-0155 v1.0
136
10.1.2 MIBs Explained.
Introduction As mentioned in “ Management Information Base” on page 135 both the
SpeedTouch™ SNMP agent and the SNMP manager rely on Management
Information Base (MIB) files containing all relevant SNMP objects.
In the following, all MIBs important for the SpeedTouch™ are described.
Additionally some of the most important and/or interesting SNMP counters are
shortly highlighted.
Standard MIBs Following MIBs are common standard MIBs that are relevant to monitoring the
SpeedTouch™. All MIB manager implementations should provide these MIBs by
default. Updated copies of the MIBs have been provided on the SpeedTouch™
Setup CD. It is advised to load the copies provided on the SpeedTouch™ Setup CD
to your SNMP manager, instead of using the standard MIBs included with your
SNMP manager.
RFC1213 MIB-II
MIB-II is defined by IETF Full Standards RFC1213, RFC 2011, RFC 2012 and RFC
2013 and is the fundamental MIB for TCP/IP based Internet, describing objects
available from devices which run the Internet suite of protocols. The MIB is
fundamental to SNMP and is referenced by many other MIB modules. It
contains management information and statistics on the IP, ICMP, TCP, and UDP
protocols.
RFC2863 IF-MIB
The IF-MIB is an extension and replacement of the interface table in MIB-II. It
contains statistics on the number of bytes and packets transported across the
represented interfaces, including errors.
System MIB (Enterprise specific branch MIB)
This required MIB is for administrative use by the other MIBs only. It provides
the object IDs (OID) from the SpeedTouch™ specific MIBs and defines the
Enterprise specific object identifier.
RFC1493 Bridge MIB
The Bridge-MIB contains management information on the Bridge port(s). It
contains statistics on, for example, alignment errors, collisions and MAC
transition errors.
IANAifType MIB
This required MIB module is for administrative use only, by the other MIBs. It
defines the IANAifType Textual Convention, and thus the enumerated values
of the ifType object defined in MIB-II's ifTable.
RFC2665 Ethernet-like MIB
The Ethernet MIB contains management information on the Ethernet
interface(s). It contains statistics on, for example, alignment errors, collisions
and MAC transition errors.
RFC2668 MAU MIB
The Medium Access Unit (MAU) MIB contains management information about
medium access units. On SpeedTouch™ devices equipped with the four-port
Ethernet switch, four MAU ports are present. The MAU MIB will give details
about the type, status and provide statistics of each MAU. It also gives details
of the auto negotiation that has taken place on each ethernet port.