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SHOW RMON HISTORY DATA
SHOW RMON
HISTORY DATA
Use the SHOW RMON HISTORY DATA command to display network statistics
information sampled at an interval you configure. This command works with
Ethernet modules only.
The history report is similar to the information displayed using the MONITOR
command. It logs the difference between counters at regular intervals. The history
control table specifies the:
■
Data source of the history report
■
Collection interval
■
Number of entries to store
If the probe has more entries to store than it is configured to hold, the oldest
history entry is deleted (the lowest-numbered sample) and a new entry is
appended (as the highest-numbered sample).
The Ethernet history report incorporates Ethernet statistics counters. For each
sample entry, the report provides utilization of the network during that interval.
Each entry is stamped with the date and time that the entry was started.
Format
Example
The following command displays all history samples collected using RMON History
Control Table entry 3. (The example shows a single bucket. Histories typically show
many.)
CB5000> show rmon history data 3 all
RMON History display for Interface 3:
Sample Index: 2387
Interval Start: 06 Oct 94 06:53:46
Drop Events: 0
Octets: 374107
Packets: 1927
Broadcast Packets: 40
Multicast Packets: 22
CRC and Alignment Errors:0
Undersize Packets: 0
Oversize Packets: 0
Fragments: 0
Jabbers: 0
Collisions: 0
Utilization: 1
show rmon history data
control index data index
all
control index Index from RMON History Control Table for the history you want to
view.
data index Index of the specific history collected that you want to view.