show rmon history

This command displays the specified entry in the RMON history table.

Format show rmon history index {errors [period seconds] |throughput [period seconds] | other [period seconds]}
Mode Privileged EXEC
Parameter Description
alarm-index An arbitrary integer index value used to uniquely identify the alarm entry. The range is 1 to 65535.
errors Displays the error counters: CRC align errors, undersize and oversize packets, fragment packets, and jabber packets.
throughput Displays the throughput counters: total number of octets, packets, successful broadcast and multicast packets, and port utilization.
other Displays drop and collision counters.
periodseconds The period of time, in seconds, for which to display history. This parameter is accepted for the errors, throughput, and other options.
Column
Meaning
Maximum Table Size Maximum number of entries that the history table can hold.
Time Time at which the sample is collected, displayed as period seconds.
CRC Align Number of CRC align errors.
Undersize Packets Total number of undersize packets. Packets are less than 64 octets long (excluding framing bits, including FCS octets).
Oversize Packets Total number of oversize packets. Packets are longer than 1518 octets (excluding framing bits, including FCS octets).
Fragments Total number of fragment packets. Packets are not an integral number of octets in length or had a bad Frame Check Sequence (FCS), and are less than 64 octets in length (excluding framing bits, including FCS octets).
Jabbers Total number of jabber packets. Packets are longer than 1518 octets (excluding framing bits, including FCS octets), and are not an integral number of octets in length or had a bad Frame Check Sequence (FCS).
Octets Total number of octets received on the interface.
Packets Total number of packets received (including error packets) on the interface.
Broadcast Total number of good Broadcast packets received on the interface.
Multicast Total number of good Multicast packets received on the interface.
Util Port utilization of the interface associated with the history index specified.
Dropped Collisions Total number of dropped collisions.

The following example shows CLI display output for the command.

(Extreme 220) (Routing) #show rmon history 1 errors period 300
Sample set: 1   Owner: myowner
Interface: 1/0/1   Interval: 30
Requested Samples: 10   Granted Samples: 10
Maximum table size: 1758
Time                  CRC Align  Undersize Oversize  Fragments  Jabbers
--------------------- ---------- --------- --------- ---------- -------
Jan 01 1970 21:41:43  0          0         0         0          0
Jan 01 1970 21:42:14  0          0         0         0          0
Jan 01 1970 21:42:44  0          0         0         0          0
Jan 01 1970 21:43:14  0          0         0         0          0
Jan 01 1970 21:43:44  0          0         0         0          0
Jan 01 1970 21:44:14  0          0         0         0          0
Jan 01 1970 21:44:45  0          0         0         0          0
Jan 01 1970 21:45:15  0          0         0         0          0
Jan 01 1970 21:45:45  0          0         0         0          0
Jan 01 1970 21:46:15  0          0         0         0          0

The following example shows CLI display output for the command.

(Extreme 220) (Routing) #show rmon history 1 throughput period 300
Sample set: 1   Owner: myowner
Interface: 1/0/1   Interval: 30
Requested Samples: 10   Granted Samples: 10
Maximum table size: 1758
Time                 Octets     Packets   Broadcast Multicast  Util
-------------------- ---------- --------- --------- ---------- --------
Jan 01 1970 21:41:43 0          0         0         0          1
Jan 01 1970 21:42:14 0          0         0         0          1
Jan 01 1970 21:42:44 0          0         0         0          1
Jan 01 1970 21:43:14 0          0         0         0          1
Jan 01 1970 21:43:44 0          0         0         0          1
Jan 01 1970 21:44:14 0          0         0         0          1
Jan 01 1970 21:44:45 0          0         0         0          1
Jan 01 1970 21:45:15 0          0         0         0          1
Jan 01 1970 21:45:45 0          0         0         0          1
Jan 01 1970 21:46:15 0          0         0         0          1
(Extreme 220) (Routing) #show rmon history 1 other period 300
Sample set: 1   Owner: myowner
Interface: 1/0/1   Interval: 30
Requested Samples: 10   Granted Samples: 10
Maximum table size: 1758
Time                 Dropped Collisions
-------------------- ------- ----------
Jan 01 1970 21:41:43 0       0
Jan 01 1970 21:42:14 0       0
Jan 01 1970 21:42:44 0       0
Jan 01 1970 21:43:14 0       0
Jan 01 1970 21:43:44 0       0
Jan 01 1970 21:44:14 0       0
Jan 01 1970 21:44:45 0       0
Jan 01 1970 21:45:15 0       0
Jan 01 1970 21:45:45 0       0
Jan 01 1970 21:46:15 0       0