display rmon history

Function

The display rmon history command displays RMON historical sampling information.

Format

display rmon history [ interface-type interface-number | interface-name ]

Parameters

Parameter	Description	Value
interface-type	Displays the RMON historical sampling information of a specified interface. If this parameter is not specified, all the RMON historical sampling information will be displayed.	-
interface-number	Specifies the interface number.	-
interface-name	Specifies the interface name.	-

Parameter

Description

Value

interface-type

Displays the RMON historical sampling information of a specified interface. If this parameter is not specified, all the RMON historical sampling information will be displayed.

interface-number

Specifies the interface number.

interface-name

Specifies the interface name.

Views

All views

Default Level

1: Monitoring level

Task Name and Operations

Task Name	Operations
perf-mgr	read

Usage Guidelines

After the rmon history command is used to configure the RMON historical sampling function, the system will sample the interface information periodically. To view RMON historical sampling information, run the display rmon history command. The command output contains the number of historical samples, interval of historical sampling, the latest historical sampling information, the usage rate of Ethernet interfaces, the number of packets with CRC errors, and the total number of packets.

Example

The actual command output varies according to the device. The command output here is only an example.

# Display the RMON historical sampling information.

<HUAWEI> display rmon history
History control entry 1 owned by Creator is VALID
  Sampled interface     : 10GE0/1/1
  Sampling interval     : 30(sec) with 10 buckets max
  Last Sampling time    : 0days 00h:09m:43s
  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 packets:      :0         , Utilization       :0

**Table 1** Description of the **display rmon history** command output
Item	Description
History control entry 1 owned by Creator is VALID	Current status of the historical sampling function with the index number being entry-number created by the owner is status. entry-number: An index number of the history control table entry. owner: An owner. status: undercreation: The entry corresponding to the index is invalid. valid: The entry corresponding to the index is valid. invalid: The entry corresponding to the index is invalid because of the interface board hot swapping.
Sampled interface	Sampled interface.
Sampling interval	Sampling period, in seconds. The system will sample the interface information based on this period.
Last Sampling time	Latest sampling time.
Latest sampled values	Latest sampled result.
Octets	Number of bytes received in a sampling period.
Packets	Number of packets received in a sampling period.
Broadcast packets	Number of broadcast packets received in a sampling period.
Multicast packets	Number of multicast packets received in a sampling period.
Undersize packets	Number of undersize packets received in a sampling period.
Oversize packets	Number of oversize packets received in a sampling period.
Fragments packets	Number of undersize packets with CRC errors received in a sampling period.
Jabbers packets	Number of oversize packets with CRC errors received in a sampling period.
CRC alignment errors	Number of packets with CRC errors received in a sampling period.
Collisions	Number of conflicting packets received in a sampling period.
Dropped packets	Number of discarded packets received in a sampling period.
Utilization	Bandwidth usage in a sampling period.