display rmon history

Function

The display rmon history command displays RMON history sampling information.

Format

display rmon history [ interface-type interface-number ]

Parameters

Parameter	Description	Value
interface-type interface-number	Displays RMON history sampling information on the specified Ethernet interface. If this parameter is not specified, RMON history sampling information on all interfaces is displayed.	-

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

After configuring RMON history statistics on an interface using the rmon history command, the system samples packets on the interface periodically. The display rmon history command can display history sampling information, including the number of sampled packets, history sampling interval, latest sampling information, Ethernet interface usage, number of CRC error packets, and total number of packets.

Example

# Display RMON history sampling information.

<HUAWEI> display rmon history
History control entry 1 owned by Creator is valid
  Samples interface     : GigabitEthernet0/0/1<ifIndex.402653698>
  Sampling interval     : 30(sec) with 10 buckets max
  Last Sampling time    : 0days 00h:09m:43s.00th
  Latest sampled values :
  octets               :645       , packets           :7
  broadcast packets    :7         , multicast packets :0
  undersize packets    :6         , oversize packets  :0
  fragments packets    :0         , jabbers packets   :0
  CRC alignment errors :0         , collisions        :0
  Dropped packet:      :0         , utilization       :0

# Display RMON history sampling information on the specified interface.

<HUAWEI> display rmon history gigabitethernet 0/0/1
History control entry 1 owned by Creator is valid
  Samples interface     : GigabitEthernet0/0/1<ifIndex.402653698>
  Sampling interval     : 30(sec) with 10 buckets max
  Last Sampling time    : 0days 00h:09m:43s.00th
  Latest sampled values :
  octets               :645       , packets           :7
  broadcast packets    :7         , multicast packets :0
  undersize packets    :6         , oversize packets  :0
  fragments packets    :0         , jabbers packets   :0
  CRC alignment errors :0         , collisions        :0
  Dropped packet:      :0         , utilization       :0   
  History record:
  Record No.1 (Sample time: 0days 00h:02m:30s.01th)
  octets               :0         , packets           :0
  broadcast packets    :0         , multicast packets :0
  undersize packets    :0         , oversize packets  :0
  fragments packets    :0         , jabbers packets   :0
  CRC alignment errors :0         , collisions        :0
  Dropped packet:      :0         , utilization       :0

**Table 1** Description of the display rmon history command output
Item	Description
History control entry entry-number owned by owner is status.	The current status of the event entry entry-number created by owner is status. entry-number: history control table entry index, corresponding to the historyControlIndex object in historyControlTable. owner: creator of the entry, corresponding to the historyControlOwner object in historyControlTable. status: row status of the history control table entry with the specified index, corresponding to the historyControlStatus in historyControlTable: undercreation(invalid), valid(valid), invalid(no valid historical sampling information). You can run the rmon history command to configure entry-number and owner.
Samples interface	Sampled interface.
Sampling interval	Sampling interval, in seconds, corresponding to the historyControlInterval object in historyControlTable. The system samples packets on the interface at this interval. You can run the rmon history command to configure this parameter.
Last Sampling time	Latest sampling time, corresponding to the etherHistoryIntervalStart object in etherHistoryTable.
Latest sampled values	Latest sampling result.
octets	Number of bytes received in a sampling interval, corresponding to the etherHistoryOctets object in etherHistoryTable.
packets	Number of packets received in a sampling interval, corresponding to the etherHistoryPkts object in etherHistoryTable.
broadcast packets	Number of broadcast packets received in a sampling interval, corresponding to the etherHistoryBroadcastPkts object in etherHistoryTable.
multicast packets	Number of multicast packets received in a sampling interval, corresponding to the etherHistoryMulticastPkts object in etherHistoryTable.
undersize packets	Number of undersize packets received in a sampling interval, corresponding to the etherHistoryUndersizePkts object in etherHistoryTable.
oversize packets	Number of large packets received in a sampling interval, corresponding to the etherHistoryOversizePkts object in etherHistoryTable.
fragments packets	Number of undersize and CRC error packets received in a sampling interval, corresponding to the etherHistoryFragments object in etherHistoryTable.
jabbers packets	Number of large and CRC error packets received in a sampling interval, corresponding to the etherHistoryJabbers object in etherHistoryTable.
CRC alignment errors	Number of CRC error packets received in a sampling interval, corresponding to the etherHistoryCRCAlignErrors object in etherHistoryTable.
collisions	Number of collision packets received in a sampling interval, corresponding to the etherHistoryCollisions object in etherHistoryTable.
Dropped packet	Number of packets discarded in a sampling interval, corresponding to the etherHistoryDropEvents object in etherHistoryTable.
utilization	Bandwidth usage in a sampling interval, corresponding to the etherHistoryUtilization object in etherHistoryTable.
History record	History sampling result.