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.
Encapsulation	Encapsulation parameters of the mirrored packets.
Mirroring CPU	Source CPU.
Monitor port	Destination port.
Destination IP address	Destination IP address in the outer header of the GRE-encapsulated mirrored packets.
Source IP address	Source IP address in the outer header of the GRE-encapsulated mirrored packets.
DSCP	DSCP value in the outer header of the GRE-encapsulated mirrored packets.
VLAN	VLAN in the outer header of the GRE-encapsulated mirrored packets.
VRF Instance	VPN instance whose routing table is used to direct forwarding of the mirrored packets.

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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

Parameters

group-id: Specifies a mirroring group ID. The value range for this argument is 1 to 9.

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

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

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

Default

No source CPU is configured for a mirroring group.

Views

System view

Predefined user roles

network-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 9.

slot slot-number-list: Specifies a space-separated list of up to eight slot number items. An item specifies an IRF member device by its member ID or specifies a range of IRF member devices 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.

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

# 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

Parameters

group-id: Specifies a mirroring group by its ID. The value range for this argument is 1 to 9.

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 port can act as a source port for only one mirroring group.

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

Examples

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

<Sysname> system-view

[Sysname] mirroring-group 1 local

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] mirroring-group 1 mirroring-port both

# Create remote source group 2 to monitor the bidirectional traffic of the port GigabitEthernet 1/0/2.

<Sysname> system-view

[Sysname] mirroring-group 2 remote-source

[Sysname] interface gigabitethernet 1/0/2

[Sysname-GigabitEthernet1/0/2] 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

Parameters

group-id: Specifies a mirroring group by its ID. The value range for this argument is 1 to 9.

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 monitor port or or egress port.

Examples

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

<Sysname> system-view

[Sysname] mirroring-group 1 local

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

# Create remote source group 2 to monitor the bidirectional traffic of GigabitEthernet 1/0/2.

<Sysname> system-view

[Sysname] mirroring-group 2 remote-source

[Sysname] mirroring-group 2 mirroring-port gigabitethernet 1/0/2 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

Parameters

group-id: Specifies a mirroring group by its ID. The value range for this argument is 1 to 9.

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 GigabitEthernet 1/0/1 as its egress port in system view.

<Sysname> system-view

[Sysname] mirroring-group 1 remote-source

[Sysname] mirroring-group 1 monitor-egress gigabitethernet 1/0/1

# Create remote source group 2. Configure GigabitEthernet 1/0/2 as its egress port in interface view.

<Sysname> system-view

[Sysname] mirroring-group 2 remote-source

[Sysname] interface gigabitethernet 1/0/2

[Sysname-GigabitEthernet1/0/2] 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 [ destination-ip destination-ip-address source-ip source-ip-address [ dscp dscp-value | vlan vlan-id | vrf-instance vrf-name ] * [ destination-mac mac-address ] | destination-mac mac-address ]

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

Parameters

group-id: Specifies a mirroring group by its ID. The value range for this argument is 1 to 9.

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. The default DSCP value is 0.

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

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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. 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 obtain the destination MAC address. If the destination MAC address cannot be obtained, the default MAC address 000f-e241-5e5b is used.

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.

An aggregation member port cannot be configured as the monitor port.

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.

Examples

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

<Sysname> system-view

[Sysname] mirroring-group 1 local

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] mirroring-group 1 monitor-port

# Create remote destination group 2 and configure GigabitEthernet 1/0/2 as its monitor port.

<Sysname> system-view

[Sysname] mirroring-group 2 remote-destination

[Sysname] interface gigabitethernet 1/0/2

[Sysname-GigabitEthernet1/0/2] mirroring-group 2 monitor-port

# Create local mirroring group 3. Specify GigabitEthernet 1/0/1 as its monitor port and configure the encapsulation parameters including the source and destination IP addresses, DSCP value, VLAN, and VPN instance for the mirrored packets.

<Sysname> system-view

[Sysname] mirroring-group 3 local

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] mirroring-group 3 monitor-port destination-ip 1.1.1.1 source-ip 3.3.3.3 dscp 1 vlan 1 vrf-instance 122

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

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

Default

No monitor port is configured for a mirroring group.

Views

System view

Predefined user roles

network-admin

Parameters

group-id: Specifies a mirroring group by its ID. The value range for this argument is 1 to 9.

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

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. The default DSCP value is 0.

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

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.

An aggregation member port cannot be configured as the monitor port.

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.

Examples

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

<Sysname> system-view

[Sysname] mirroring-group 1 local

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

# Create remote destination group 2 and configure GigabitEthernet 1/0/2 as its monitor port.

<Sysname> system-view

[Sysname] mirroring-group 2 remote-destination

[Sysname] mirroring-group 2 monitor-port gigabitethernet 1/0/2

# Create local mirroring group 3 and configure ports GigabitEthernet 1/0/1 through GigabitEthernet 1/0/3 and GigabitEthernet 1/0/5 as its monitor ports.

<Sysname> system-view

[Sysname] mirroring-group 3 local

[Sysname] mirroring-group 3 monitor-port gigabitethernet 1/0/1 to gigabitethernet 1/0/3 gigabitethernet 1/0/5

# Create local mirroring group 4. Specify GigabitEthernet 1/0/1 as its monitor port and configure the encapsulation parameters including the source and destination IP addresses, DSCP value, VLAN, and VPN instance for the mirrored packets.

<Sysname> system-view

[Sysname] mirroring-group 4 local

[Sysname] mirroring-group 4 monitor-port gigabitethernet 1/0/1 destination-ip 1.1.1.1 source-ip 3.3.3.3 dscp 1 vlan 1 vrf-instance 122

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

Parameters

group-id: Specifies a mirroring group by its ID. The value range for this argument is 1 to 9.

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.

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

display monitoring-group

Use display monitoring-group to display monitoring group information.

Syntax

display monitoring-group { group-id | all }

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

group-id: Specifies a monitoring group by its number. The value range for this argument is 1 to 4112.

all: Specifies all monitoring groups.

Examples

# Display information about all monitoring groups.

<Sysname> display monitoring-group all

Monitoring group 1:

Monitoring ports: GigabitEthernet1/0/2

GigabitEthernet1/0/3

GigabitEthernet1/0/4

Table 3 Command output

Field	Description
Monitoring group	ID of the monitoring group.
Monitoring ports	Monitoring ports in the monitoring group.

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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

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 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 [ truncation ] [ { destination-ip destination-ip-address source-ip source-ip-address | destination-ipv6 destination-ipv6-address source-ipv6 source-ipv6-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 | destination-ipv6 destination-ipv6-address source-ipv6 source-ipv6-address } [ truncation ] [ 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| destination-ipv6 destination-ipv6-address source-ipv6 source-ipv6-address }

Default

No mirroring actions exist to mirror traffic to interfaces.

Views

Traffic behavior view

Predefined user roles

network-admin

Parameters

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

truncation: Truncates the mirrored packets to retain only the first 192 bytes of each packet.

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.

destination-ipv6 destination-ipv6-address: Specifies the destination IPv6 address for the mirrored packets.

source-ipv6 source-ipv6-address: Specifies the source IPv6 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 4.

Table 4 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.

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.

The encapsulation parameters for the mirrored packets are available only when the mirrored packets are sent out of Ethernet 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.

If you do not specify a VLAN for the mirrored packets destined to a VLAN interface, the device encapsulates the packets as follows:

¡ The device determines whether to encapsulate a VLAN ID for the packets based on the VLAN settings for the Layer 2 Ethernet interface associated with the VLAN interface.

¡ To encapsulate a VLAN ID, the device uses the VLAN ID of the VLAN interface to encapsulate the packets.

You cannot flow-mirror traffic to tunnel interfaces.

Examples

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

<Sysname> system-view

[Sysname] traffic behavior 1

[Sysname-behavior-1] mirror-to interface gigabitethernet 1/0/1

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

· 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 gigabitethernet 1/0/1 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 destination address 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

mirror-to monitoring-group

Use mirror-to monitoring-group to configure a mirroring action that mirrors traffic to a monitoring group.

Use undo mirror-to monitoring-group to delete a mirroring action that mirrors traffic to a monitoring group.

Syntax

mirror-to monitoring-group group-id

undo mirror-to monitoring-group group-id

Default

No mirroring actions exist to mirror traffic to a monitoring group.

Views

Traffic behavior view

Predefined user roles

network-admin

Parameters

group-id: Specifies a monitoring group by its number. The value range for this argument is 4097 to 4112.

Examples

# Create traffic behavior b1 and configure the action of mirroring traffic to monitoring group 1.

<Sysname> system-view

[Sysname] traffic behavior b1

[Sysname-behavior-b1] mirror-to monitoring-group 1

monitoring-group

Use monitoring-group to create a monitoring group and enter its view, or enter the view of an existing monitoring group.

Use undo monitoring-group to delete monitoring groups.

Syntax

monitoring-group group-id

undo monitoring-group { group-id | all }

Default

No monitoring groups exist.

Views

System view

Predefined user roles

network-admin

Parameters

group-id: Specifies a number for the monitoring group. The value range for this argument is 1 to 4112.

all: Specifies all monitoring groups.

Examples

# Create monitoring group 1.

<Sysname> system-view

[Sysname] monitoring-group 1

monitoring-port

Use monitoring-port to assign ports to a monitoring group.

Use undo monitoring-port to remove ports from a monitoring group.

Syntax

Syntax I

monitoring-port interface-list [ { destination-ip destination-ip-address source-ip source-ip-address | destination-ipv6 destination-ipv6-address source-ipv6 source-ipv6-address } [ dscp dscp-value | vlan vlan-id | vrf-instance vrf-name ] * [ destination-mac mac-address ] ]

undo monitoring-port interface-list

Syntax II

monitoring-port { destination-ip destination-ip-address source-ip source-ip-address | destination-ipv6 destination-ipv6-address source-ipv6 source-ipv6-address } [ dscp dscp-value | vlan vlan-id | vrf-instance vrf-name ] * [ destination-mac mac-address ]

undo monitoring-port { destination-ip destination-ip-address source-ip source-ip-address | destination-ipv6 destination-ipv6-address source-ipv6 source-ipv6-address }

Default

A monitoring group does not contain any ports.

Views

Monitoring group view

Predefined user roles

network-admin

Parameters

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 start interface number must be identical to or lower than the end interface number. The types and number of interfaces supported in a monitoring group vary by device model.

destination-ip destination-ip-address: Specifies the destination IPv4 address for the mirrored packets.

source-ip source-ip-address: Specifies the source IPv4 address for the mirrored packets.

destination-ipv6 destination-ipv6-address: Specifies the destination IPv6 address for the mirrored packets.

source-ipv6 source-ipv6-address: Specifies the source IPv6 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 5.

Table 5 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.

Usage guidelines

Use the ports in a monitoring group only for flow mirroring, so the data monitoring device receives and analyzes only the mirrored traffic.

If you use syntax 1 to assign multiple ports to a monitoring group, the device encapsulates a mirrored packet with the specified encapsulation parameters in a GRE packet with a protocol number of 0x88BE. Then, a copy of the packet is sent of each port in the monitoring group.

If you use syntax II, the device encapsulates a mirrored packet with the specified encapsulation parameters in a GRE packet with a protocol number of 0x88BE. Then, the device looks up the source IP address and destination IP address of the packet in the routing table and forwards the packet based on the matching route. The outgoing interface of the route is the destination interface of the mirrored packet.

Through configuring load sharing in the routing protocols, you can specify multiple destination interfaces for the mirrored traffic. When the current mirroring destination interface fails, the mirrored traffic is forwarded to the outgoing interface re-calculated by the routing protocols. If you do not specify a VLAN for the mirrored packets destined to a VLAN interface, the device encapsulates the packets as follows:

· The device determines whether to encapsulate a VLAN ID for the packets based on the VLAN settings for the Layer 2 Ethernet interface associated with the VLAN interface.

· To encapsulate a VLAN ID, the device uses the VLAN ID of the VLAN interface to encapsulate the packets.

If you specify encapsulation parameters when flow-mirroring traffic to a monitoring group, the encapsulation parameters for flow-mirroring traffic to the monitoring group member ports must be the same as the encapsulation parameters of the first member port.

Examples

# Create monitoring group 1 and assign GigabitEthernet 1/0/1 and GigabitEthernet 1/0/2 to it.

<Sysname> system-view

[Sysname] monitoring-group 1

[Sysname-monitoring-group-1] monitoring-port gigabitethernet 1/0/1 to gigabitethernet 1/0/2

# Create monitoring group 2 and encapsulate the mirrored packets with destination IP address 1.1.1.1, source IP address 2.2.2.2, DSCP value 20, and VLAN ID 100. Forward the mirrored packets based on the routing table of the VPN instance named vrf1.

<Sysname> system-view

[Sysname] monitoring-group 2

[Sysname-monitoring-group-2] monitoring-port destination-ip 1.1.1.1 source-ip 2.2.2.2 dscp 20 vlan 100 vrf-instance vrf1

# Create monitoring group 3 and assign GigabitEthernet 1/0/1 to the monitoring group. Encapsulate the mirrored packets with destination IP address 1.1.1.1, source IP address 2.2.2.2, DSCP value 20, and VLAN ID 100. Forward the mirrored packets based on the routing table of the VPN instance named vrf2.

<Sysname> system-view

[Sysname] monitoring-group 3

[Sysname-monitoring-group-3] monitoring-port gigabitethernet 1/0/1 destination-ip 1.1.1.1 source-ip 2.2.2.2 dscp 20 vlan 100 vrf-instance vrf2

Related commands

monitoring-group

11-Network Management and Monitoring Command Reference

display mirroring-group

mirroring-group mirroring-cpu

mirroring-group mirroring-port (system view)

mirroring-group monitor-port (interface view)

mirroring-group monitor-port (system view)

mirror-to interface

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