RMON GUI - Remote network MONitoring
Administrator handbook
|
|
RMON GUI - Remote network MONitoring
|
Table of contents |
|
RMON1 delivers information in 9
RMON groups of monitoring elements, each providing specific sets of
data to meet common network-monitoring requirements. Each group is optional
so that vendors do not need to support all the groups within the Management
Information Base (MIB).
Remark: Some RMON groups require support of other RMON groups to function properly.
Table of the nine monitoring groups specified in the RFC 2819 (Obsoletes RFC 1757)
Ethernet RMON MIB.
are groups supported by The LoriotPro RMON GUI program and plugin.
| RMON GUI | Group | Description | Statistics provided |
|---|---|---|---|
|
Statistics(1) | Contains statistics measured by the RMON probe for each monitored interface on this device. | Packets dropped, packets sent, bytes sent (octets), broadcast packets, multicast packets, CRC errors, runts, giants, fragments, jabbers, collisions, and counters for packets ranging from 64 to 128, 128 to 256, 256 to 512, 512 to 1024, and 1024 to 1518 bytes. |
 |
History(2) | Records periodic statistical samples from a network and stores them for later retrieval. | Sample period, number of samples, items sampled. |
|
Alarm(3) | Periodically takes statistical samples from variables in the probe and compares them with previously configured thresholds. If the monitored variable crosses a threshold, an event is generated | Includes the alarm table and requires the implementation of the event group. Alarm type, interval, starting threshold, stop threshold. |
|
Host(4) | Contains statistics associated with each host (Ethernet Station) discovered on the network. | Host address (Ethernet MAC address), packets, and bytes received and transmitted, as well as broadcast, multicast, and error packets. |
|
Matrix(5) | Stores statistics for conversations between sets of two addresses (Ethernet Station). As the device detects a new conversation, it creates a new entry in its table. | Ethernet MAC Source and Ethernet MAC destination address pairs and packets, bytes, and errors for each pair. |
|
Host Top N(6) | Prepares tables that describe the hosts (Ethernet Station) that top a list ordered by one of their base statistics over an interval specified by the management station. Thus, these statistics are rate-based. | Statistics, host(s), sample start and stop periods, rate base, duration. |
|
Filters(7) | Enables packets to be matched by a filter equation. These matched packets form a data stream that might be captured or that might generate events. | Bit-filter type (mask or not mask), filter expression (bit level), conditional expression (and, or not) to other filters. |
|
Packet Capture(8) | Enables packets to be captured after they flow through a channel. | Size of buffer for captured packets, full status (alarm), number of captured packets. |
|
Events(9) | Controls the generation and notification of events from this device. | Event type, description, last time event sent. |
The RMON MIB tree branch
www.loriotpro.com |
|