Huawei Quidway S9300 Configuration Manual - Network Management page 124

2 RMON and RMON2 Configuration
l
l
Features of RMON2
Currently, the S9300 supports only two MIBs in RMON2: protocolDir and nlHost.
nlHost supports only the network layer host group but not the application layer host group. That
is, host control at the application layer and alHostTable are not implemented in the
2-4
The alarm group contains one table: alarmTable.
Event group
An event group stores all the events generated by the RMON agent in a table. It records
logs or sends trap messages to the NM Station when an event occurs.
The event group implements the output of three events: log, trap, and log-trap. Each event
entry corresponds to a maximum of 10 pieces of logs. The previous logs are overwritten in
a circular manner if the threshold of logs is crossed.
The event group has two tables: eventTable and logTable.
Performance-MIB
The RMON prialarm group is an enhancement of alarmTable defined in RFC 2819.
Compared with the alarmTable, the RMON prialarm group supports the setting of alarm
objects and time spans of alarm entries through expressions.
The RMON Performance-MIB has one table: prialarmTable.
In the S9300, to save system resources, each entry is given a specific time span. The time
span indicates the period for an entry to keep the invalid state. The entry is deleted when
the time span goes down to 0.
Table 2-1 shows the capacity of various tables and the maximum time span of each table.
Table 2-1 Time span of each table
Table
ethernetStatsTable
historyControlTable
alarmTable
eventTable
logTable
prialarmTable
NOTE
logTable does not have a time span. Each log entry can have a maximum of 10 pieces of logs. The
excessive logs supersede the older ones in a circular manner.
When an interface board or an interface card is removed, the corresponding entries in the
ethernetStatsTable and historyControlTable become invalid. If the time spans of tables are
respectively set to 600s, the entries in the tables are deleted when the time spans go down
to 0.
If an interface is added before its corresponding entries are deleted from the table, these
entries can take effect again.
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Quidway S9300 Terabit Routing Switch
Configuration Guide - Network Management
Entry Capacity (Byte)
100
100
60
60
600
50
Maximum Time Span(s)
600
600
6000
600
-
6000
Issue 03 (2010-09-20)