Field	Description
Mirroring group	Number of the mirroring group.
Type	Type of the mirroring group: · Local. · Remote source. · Remote destination.
Status	Status of the mirroring group: · Active—The mirroring group has taken effect. · Incomplete—The mirroring group configuration is not complete and does not take effect.
Mirroring port	Source port.
Mirroring CPU	Source CPU.
Monitor port	Destination port.

‌

mirroring-group

Use mirroring-group to create a mirroring group.

Use undo mirroring-group to delete mirroring groups.

Syntax

mirroring-group group-id { local | remote-destination | remote-source }

undo mirroring-group { group-id | all | local | remote-destination | remote-source }

Default

No mirroring groups exist.

Views

System view

Predefined user roles

network-admin

mdc-admin

Parameters

group-id: Specifies a mirroring group ID. The value range for this argument is 1 to 16.

local: Specifies local mirroring groups.

remote-destination: Specifies remote destination groups.

remote-source: Specifies remote source groups.

all: Specifies all mirroring groups.

Examples

# Create local mirroring group 1.

<Sysname> system-view

[Sysname] mirroring-group 1 local

mirroring-group mirroring-cpu

Use mirroring-group mirroring-cpu to configure source CPUs for a mirroring group.

Use undo mirroring-group mirroring-cpu to remove source CPUs from a mirroring group.

Syntax

In standalone mode:

mirroring-group group-id mirroring-cpu slot slot-number-list { both | inbound | outbound }

undo mirroring-group group-id mirroring-cpu slot slot-number-list

In IRF mode:

mirroring-group group-id mirroring-cpu chassis chassis-number slot slot-number-list { both | inbound | outbound }

undo mirroring-group group-id mirroring-cpu chassis chassis-number slot slot-number-list

Default

No source CPU is configured for a mirroring group.

Views

System view

Predefined user roles

network-admin

mdc-admin

Parameters

group-id: Specifies a mirroring group by its number. The specified mirroring group must already exist. The value range for this argument is 1 to 16.

slot slot-number-list: Specifies a space-separated list of up to eight slot number items. An item specifies a card by its slot number or specifies a range of cards in the form of start-slot-number to end-slot-number. The end slot number must be equal to or greater than the start slot number. (In standalone mode.)

chassis chassis-number slot slot-number-list: Specifies cards on an IRF member device. The chassis-number argument represents the member ID of the IRF member device. The slot-number-list argument specifies a space-separated list of up to eight slot number items. An item specifies a card by its slot number or specifies a range of cards in the form of start-slot-number to end-slot-number. The end slot number must be equal to or greater than the start slot number. (In IRF mode.)

both: Mirrors both received and sent packets.

inbound: Mirrors only received packets.

outbound: Mirrors only sent packets.

Usage guidelines

You can configure source CPUs only for local mirroring groups and remote source groups.

Examples

# (In standalone mode.) Create local mirroring group 1 to monitor the inbound traffic of the CPU on the specified slot.

<Sysname> system-view

[Sysname] mirroring-group 1 local

[Sysname] mirroring-group 1 mirroring-cpu slot 1 inbound

Related commands

mirroring-group

mirroring-group mirroring-port (interface view)

Use mirroring-group mirroring-port to configure a port as a source port for a mirroring group.

Use undo mirroring-group mirroring-port to restore the default.

Syntax

mirroring-group group-id mirroring-port { both | inbound | outbound }

undo mirroring-group group-id mirroring-port

Default

A port does not act as a source port for any mirroring groups.

Views

Interface view

Predefined user roles

network-admin

mdc-admin

Parameters

group-id: Specifies a mirroring group by its ID. The value range for this argument is 1 to 16.

both: Mirrors both received and sent packets.

inbound: Mirrors only received packets.

outbound: Mirrors only sent packets.

Usage guidelines

You can configure source ports only for local mirroring groups and remote source groups.

A Layer 2 or Layer 3 aggregate interface cannot be configured as a source port for a mirroring group.

Do not assign a source port of a mirroring group to the remote probe VLAN of the mirroring group.

A source port cannot be used as a reflector port, monitor port, or egress port.

Examples

# Create local mirroring group 1 to monitor the bidirectional traffic of the port HundredGigE 3/0/1.

<Sysname> system-view

[Sysname] mirroring-group 1 local

[Sysname] interface hundredgige 3/0/1

[Sysname-HundredGigE3/0/1] mirroring-group 1 mirroring-port both

# Create remote source group 2 to monitor the bidirectional traffic of the port HundredGigE 3/0/2.

<Sysname> system-view

[Sysname] mirroring-group 2 remote-source

[Sysname] interface hundredgige 3/0/2

[Sysname-HundredGigE3/0/2] mirroring-group 2 mirroring-port both

Related commands

mirroring-group

mirroring-group mirroring-port (system view)

Use mirroring-group mirroring-port to configure source ports for a mirroring group.

Use undo mirroring-group mirroring-port to remove source ports from a mirroring group.

Syntax

mirroring-group group-id mirroring-port interface-list { both | inbound | outbound }

undo mirroring-group group-id mirroring-port interface-list

Default

No source port is configured for a mirroring group.

Views

System view

Predefined user roles

network-admin

mdc-admin

Parameters

group-id: Specifies a mirroring group by its ID. The value range for this argument is 1 to 16.

interface-list: Specifies a space-separated list of up to eight interface items. Each item specifies an interface by its type and number or specifies a range of interfaces in the form of interface-type interface-number1 to interface-type interface-number2. When you specify a range of interfaces, the interfaces must be of the same type and on the same slot. The start interface number must be identical to or lower than the end interface number.

both: Mirrors both received and sent packets.

inbound: Mirrors only received packets.

outbound: Mirrors only sent packets.

Usage guidelines

You can configure source ports only for local mirroring groups and remote source groups.

A Layer 2 or Layer 3 aggregate interface cannot be configured as a source port for a mirroring group.

Do not assign a source port of a mirroring group to the remote probe VLAN of the mirroring group.

A source port cannot be used as a reflector port, monitor port, or egress port.

Examples

# Create local mirroring group 1 to monitor the bidirectional traffic of HundredGigE 3/0/1.

<Sysname> system-view

[Sysname] mirroring-group 1 local

[Sysname] mirroring-group 1 mirroring-port hundredgige 3/0/1 both

# Create remote source group 2 to monitor the bidirectional traffic of HundredGigE 3/0/2.

<Sysname> system-view

[Sysname] mirroring-group 2 remote-source

[Sysname] mirroring-group 2 mirroring-port hundredgige 3/0/2 both

Related commands

mirroring-group

mirroring-group monitor-egress

Use mirroring-group monitor-egress to configure the egress port for a remote source group.

Use undo mirroring-group monitor-egress to restore the default.

Syntax

In system view:

mirroring-group group-id monitor-egress interface-type interface-number

undo mirroring-group group-id monitor-egress interface-type interface-number

In interface view:

mirroring-group group-id monitor-egress

undo mirroring-group group-id monitor-egress

Default

No egress port is configured for a remote source group.

Views

System view

Interface view

Predefined user roles

network-admin

mdc-admin

Parameters

group-id: Specifies a mirroring group by its ID. The value range for this argument is 1 to 16.

interface-type interface-number: Specifies a port by its type and number.

Usage guidelines

You can configure egress ports only for remote source groups.

For port mirroring to work correctly, disable the following features on the egress port of a mirroring group:

· Spanning tree.

· 802.1X.

· IGMP snooping.

· Static ARP.

· MAC address learning.

The member port of an existing mirroring group cannot be configured as an egress port.

The member port of an aggregate interface cannot be configured as an egress port.

Examples

# Create remote source group 1. Configure HundredGigE 3/0/1 as its egress port in system view.

<Sysname> system-view

[Sysname] mirroring-group 1 remote-source

[Sysname] mirroring-group 1 monitor-egress hundredgige 3/0/1

# Create remote source group 2. Configure HundredGigE 3/0/2 as its egress port in interface view.

<Sysname> system-view

[Sysname] mirroring-group 2 remote-source

[Sysname] interface hundredgige 3/0/2

[Sysname-HundredGigE3/0/2] mirroring-group 2 monitor-egress

Related commands

mirroring-group

mirroring-group monitor-port (interface view)

Use mirroring-group monitor-port to configure a port as the monitor port for a mirroring group.

Use undo mirroring-group monitor-port to restore the default.

Syntax

mirroring-group group-id monitor-port

undo mirroring-group group-id monitor-port

Default

A port does not act as the monitor port for any mirroring groups.

Views

Interface view

Predefined user roles

network-admin

mdc-admin

Parameters

group-id: Specifies a mirroring group by its ID. The value range for this argument is 1 to 16.

Usage guidelines

You can configure monitor ports only for local mirroring groups and remote destination groups.

Do not enable the spanning tree feature on the monitor port of a mirroring group.

For a Layer 2 aggregate interface configured as the monitor port of a mirroring group, do not perform either of the following tasks:

· Configure its member ports as source ports of the mirroring group.

Use a monitor port only for port mirroring, so the data monitoring device receives and analyzes only the mirrored traffic.

The member port of an existing mirroring group cannot be configured as a monitor port.

The member port of an aggregate interface cannot be configured as a monitor port.

Only one monitor port can be configured for one mirroring group.

Examples

# Create local mirroring group 1 and configure HundredGigE 3/0/1 as its monitor port.

<Sysname> system-view

[Sysname] mirroring-group 1 local

[Sysname] interface hundredgige 3/0/1

[Sysname-HundredGigE3/0/1] mirroring-group 1 monitor-port

# Create remote destination group 2 and configure HundredGigE 3/0/2 as its monitor port.

<Sysname> system-view

[Sysname] mirroring-group 2 remote-destination

[Sysname] interface hundredgige 3/0/2

[Sysname-HundredGigE3/0/2] mirroring-group 2 monitor-port

Related commands

mirroring-group

mirroring-group monitor-port (system view)

Use mirroring-group monitor-port to configure the monitor ports for a mirroring group.

Use undo mirroring-group monitor-port to remove the monitor ports from a mirroring group.

Syntax

mirroring-group group-id monitor-port interface-type interface-number

undo mirroring-group group-id monitor-port interface-type interface-number

Default

No monitor port is configured for a mirroring group.

Views

System view

Predefined user roles

network-admin

mdc-admin

Parameters

group-id: Specifies a mirroring group by its ID. The value range for this argument is 1 to 16.

interface-type interface-number: Specifies an interface by its type and number.

Usage guidelines

You can configure monitor ports only for local mirroring groups and remote destination groups.

Do not enable the spanning tree feature on the monitor port of a mirroring group.

For a Layer 2 aggregate interface configured as the monitor port of a mirroring group, do not perform any of the following tasks:

· Configure its member ports as source ports of the mirroring group.

Use a monitor port only for port mirroring, so the data monitoring device receives only the mirrored traffic.

The member port of an existing mirroring group cannot be configured as a monitor port.

The member port of an aggregate interface cannot be configured as a monitor port.

Only one monitor port can be configured for one mirroring group.

Examples

# Create local mirroring group 1 and configure HundredGigE 3/0/1 as its monitor port.

<Sysname> system-view

[Sysname] mirroring-group 1 local

[Sysname] mirroring-group 1 monitor-port hundredgige 3/0/1

# Create remote destination group 2 and configure HundredGigE 3/0/2 as its monitor port.

<Sysname> system-view

[Sysname] mirroring-group 2 remote-destination

[Sysname] mirroring-group 2 monitor-port hundredgige 3/0/2

Related commands

mirroring-group

mirroring-group reflector-port

Use mirroring-group reflector-port to configure the reflector port for a remote source group.

Use undo mirroring-group reflector-port to restore the default.

Syntax

In system view:

mirroring-group group-id reflector-port interface-type interface-number

undo mirroring-group group-id reflector-port interface-type interface-number

In interface view:

mirroring-group group-id reflector-port

undo mirroring-group group-id reflector-port

Default

No reflector port is configured for a mirroring group.

Views

System view

Interface view

Predefined user roles

network-admin

mdc-admin

Parameters

group-id: Specifies a mirroring group by its ID. The value range for this argument is 1 to 16.

interface-type interface-number: Specifies a port by its type and number.

Usage guidelines

You can configure reflector ports only for remote source groups.

The port to be configured as a reflector port must be a port not in use. Do not connect a network cable to a reflector port.

When a port is configured as a reflector port, the port restores to the factory default settings. You cannot configure other features on a reflector port.

If an IRF port is bound to only one physical interface, do not configure the physical interface as a reflector port. Otherwise, the IRF might split.

You can configure a port as a reflector port only when the port is operating with the default setting of the following parameters:

· Duplex mode.

· Speed.

· MDI settings.

You cannot change the duplex mode, MDI settings, or speed for a reflector port.

The member port of an aggregate interface cannot be configured as a reflector port.

Examples

# Create remote source group 1. Configure HundredGigE 3/0/1 as its reflector port in system view.

<Sysname> system-view

[Sysname] mirroring-group 1 remote-source

[Sysname] mirroring-group 1 reflector-port hundredgige 3/0/1

This operation may delete all settings made on the interface. Continue? [Y/N]: y

# Create remote source group 2. Configure HundredGigE 3/0/2 as its reflector port in interface view.

<Sysname> system-view

[Sysname] mirroring-group 2 remote-source

[Sysname] interface hundredgige 3/0/2

[Sysname-HundredGigE3/0/2] mirroring-group 2 reflector-port

This operation may delete all settings made on the interface. Continue? [Y/N]: y

Related commands

mirroring-group

mirroring-group remote-probe vlan

Use mirroring-group remote-probe vlan to specify a VLAN as the remote probe VLAN for a mirroring group.

Use undo mirroring-group remote-probe vlan to restore the default.

Syntax

mirroring-group group-id remote-probe vlan vlan-id

undo mirroring-group group-id remote-probe vlan vlan-id

Default

No remote probe VLAN is configured for a mirroring group.

Views

System view

Predefined user roles

network-admin

mdc-admin

Parameters

group-id: Specifies a mirroring group by its ID. The value range for this argument is 1 to 16.

vlan-id: Specifies a VLAN by its ID.

Usage guidelines

You can configure remote probe VLANs only for remote source groups and remote destination groups.

When a VLAN is configured as a remote probe VLAN, use the VLAN for port mirroring exclusively.

The remote mirroring groups on the source device and destination device must use the same remote probe VLAN.

Only a static VLAN that already exists can be configured as a remote probe VLAN. A VLAN can be configured as the remote probe VLAN for only one mirroring group.

To delete a VLAN that is configured as a remote probe VLAN, remove the remote probe VLAN configuration first.

Only one remote probe VLAN can be configured for a mirroring group.

Examples

# Create remote source group 1 and configure VLAN 10 as its remote probe VLAN.

<Sysname> system-view

[Sysname] mirroring-group 1 remote-source

[Sysname] mirroring-group 1 remote-probe vlan 10

# Create remote destination group 2 and configure VLAN 20 as its remote probe VLAN.

<Sysname> system-view

[Sysname] mirroring-group 2 remote-destination

[Sysname] mirroring-group 2 remote-probe vlan 20

Related commands

mirroring-group

Flow mirroring commands

mirror-to cpu

Use mirror-to cpu to configure a mirroring action that mirrors traffic to the CPU.

Use undo mirror-to cpu to delete the mirroring action that mirrors traffic to the CPU.

Syntax

mirror-to cpu

undo mirror-to cpu

Default

No mirroring action exists to mirror traffic to the CPU.

Views

Traffic behavior view

Predefined user roles

network-admin

mdc-admin

Examples

# Create traffic behavior 1 and configure the action of mirroring traffic to the CPU for the traffic behavior.

<Sysname> system-view

[Sysname] traffic behavior 1

[Sysname-behavior-1] mirror-to cpu

mirror-to ifa-processor

Use mirror-to ifa-processor to configure a mirroring action that mirrors traffic to the in-band network telemetry (INT) processor.

Use undo mirror-to ifa-processor to delete the mirroring action that mirrors traffic to the INT processor.

Syntax

mirror-to ifa-processor [ sampler sampler-name ] [ vxlan ]

undo mirror-to ifa-processor

Default

No mirroring action exists to mirror traffic to the INT processor.

Views

Traffic behavior view

Predefined user roles

network-admin

mdc-admin

Parameters

sampler sampler-name: Specifies a sampler by its name. The sampler-name argument is a case-insensitive string of 1 to 31 characters. If you do not specify this option, packets are not sampled, and all matching packets are mirrored.

vxlan: Performs VXLAN encapsulation before performing INT encapsulation for packets to be mirrored to the INT processor. For more information about VXLAN, see VXLAN Configuration Guide or EVPN Configuration Guide.

Usage guidelines

A sampler selects a packet from sequential packets. Flow mirroring uses the sampler to limit the volume of traffic to be mirrored. Flow mirroring supports using a sampler that has not been created. If you configure multiple samplers for a mirroring action, the most recent configuration takes effect. For more information about samplers, see Network Management and Monitoring Configuration Guide.

To enable INT in a VXLAN or EVPN network, you must configure the VTEP as an INT entry node and specify the vxlan keyword when configuring the action of mirroring traffic to the INT processor.

Example

# Create traffic behavior 1 and configure the action of mirroring traffic to the INT processor. Specify sampler samp for the mirroring action.

<Sysname> system-view

[Sysname] traffic behavior 1

[Sysname-behavior-1] mirror-to ifa-processor sampler samp

Related commands

sampler

mirror-to interface

Use mirror-to interface to configure a mirroring action that mirrors traffic to an interface.

Use undo mirror-to interface to delete a mirroring action that mirrors traffic to an interface.

Syntax

Syntax 1:

mirror-to interface interface-type interface-number [ backup-interface interface-type interface-number ] [ destination-ip destination-ip-address source-ip source-ip-address [ dscp dscp-value | vlan vlan-id | vrf-instance vrf-name ] * ] [ destination-mac mac-address ]

undo mirror-to interface interface-type interface-number

Syntax 2:

mirror-to interface destination-ip destination-ip-address source-ip source-ip-address [ dscp dscp-value | vlan vlan-id | vrf-instance vrf-name ] * [ destination-mac mac-address ]

undo mirror-to interface destination-ip destination-ip-address source-ip source-ip-address

Default

No mirroring actions exist to mirror traffic to interfaces.

Views

Traffic behavior view

Predefined user roles

network-admin

mdc-admin

Parameters

interface-type interface-number: Specifies an interface by its type and number.

backup-interface interface-type interface-number: Specifies a backup interface by its type and number. When the card hosting the primary interface specified by using the interface interface-type interface-number option is unplugged or rebooted, traffic can be mirrored to the backup interface. When the card hosting the primary interface recovers, traffic is switched back to the primary interface.

destination-ip destination-ip-address: Specifies the destination IP address for the mirrored packets.

source-ip source-ip-address: Specifies the source IP address for the mirrored packets.

dscp dscp-value: Specifies the DSCP value for the mirrored packets. The dscp-value argument can be a number in the range of 0 to 63 or a keyword in Table 2.

Table 2 DSCP keywords and values

Keyword	DSCP value in binary	DSCP value in decimal
af11	001010	10
af12	001100	12
af13	001110	14
af21	010010	18
af22	010100	20
af23	010110	22
af31	011010	26
af32	011100	28
af33	011110	30
af41	100010	34
af42	100100	36
af43	100110	38
cs1	001000	8
cs2	010000	16
cs3	011000	24
cs4	100000	32
cs5	101000	40
cs6	110000	48
cs7	111000	56
default	000000	0
ef	101110	46

‌

vlan vlan-id: Specifies a VLAN by its VLAN ID in the range of 1 to 4094 for the mirrored packets.

vrf-instance vrf-instance-name: Specifies a VPN instance by its name, a case-sensitive string of 1 to 31 characters. The mirrored packets will be forwarded based on the routing table of the specified VPN instance.

destination-mac mac-address: Specifies the destination MAC address for mirrored packets sent to the interface. The mac-address argument is in the format of H-H-H. If you do not specify this option, the device uses the destination IP address to dynamically get the destination MAC address for the mirrored packets.

Usage guidelines

You can execute the mirror-to interface interface-type interface-number command multiple times for a traffic behavior to mirror traffic to different interfaces.

To mirror traffic to the specified interface, use the mirror-to interface interface-type interface-number command.

To mirror traffic to interfaces based on routes matching the specified destination IP address, use the mirror-to interface destination-ip destination-ip-address source-ip source-ip-address command. When receiving packets that meet the flow mirroring criteria, the device performs the following tasks:

1. Encapsulates the packets based on the configured encapsulation parameters, including the source and destination IP addresses.

2. Searches the routing table for routes matching the configured destination IP address.

If ECMP load-balancing is configured, multiple matching ECMP routes might be found for the specified destination IP address.

3. Sends the mirrored packets out of the output interfaces in the matching routes to the final destination.

If a selected output interface goes down, the device will send the mirrored packets out of another interface based on the routing metric recalculations.

Examples

# Create traffic behavior 1 and configure the action of mirroring traffic to HundredGigE 3/0/1 for the traffic behavior.

<Sysname> system-view

[Sysname] traffic behavior 1

[Sysname-behavior-1] mirror-to interface hundredgige 3/0/1

# Create traffic behavior 1, and configure the action of mirroring traffic to HundredGigE 3/0/1 for the traffic behavior. Specify the following parameters for the mirrored packets sent to HundredGigE 3/0/1:

· Specify 1.1.1.1 and 2.2.2.2 as the destination address and source address, respectively.

· Specify 20, 100, and vrf1 as the DSCP value, VLAN, and the VPN instance name, respectively.

<Sysname> system-view

[Sysname] traffic behavior 1

[Sysname-behavior-1] mirror-to interface hundredgige 3/0/1 destination-ip 1.1.1.1 source-ip 2.2.2.2 dscp 20 vlan 100 vrf-instance vrf1

# Configure traffic behavior 1 to encapsulate mirrored packets with source address 2.2.2.2 and address destination 1.1.1.1 and send out the packets.

<Sysname> system-view

[Sysname] traffic behavior 1

[Sysname-behavior-1] mirror-to interface destination-ip 1.1.1.1 source-ip 2.2.2

13-Network Management and Monitoring Command Reference

Port mirroring commands

display mirroring-group

mirroring-group

mirroring-group mirroring-cpu

mirroring-group mirroring-port (interface view)

mirroring-group mirroring-port (system view)

mirroring-group monitor-egress

mirroring-group monitor-port (interface view)

mirroring-group monitor-port (system view)

mirroring-group reflector-port

mirroring-group remote-probe vlan

Flow mirroring commands

mirror-to cpu

mirror-to ifa-processor

mirror-to interface

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