Contents

L2PT commands· 1

display l2protocol statistics· 1

l2protocol rate-limit 2

l2protocol tunnel dot1q· 4

l2protocol tunnel-dmac· 5

reset l2protocol statistics· 6

 

L2PT commands

display l2protocol statistics

Use display l2protocol statistics to display Layer 2 Protocol Tunneling (L2PT) statistics.

Syntax

display l2protocol statistics [ interface interface-type interface-number ]

Views

Any view

Predefined user roles

network-admin

network-operator

mdc-admin

mdc-operator

Parameters

interface interface-type interface-number: Specifies a Layer 2 Ethernet or aggregate interface by its type and number. If you do not specify this option, the command displays L2PT statistics for all Layer 2 Ethernet and aggregate interfaces.

Examples

# Display L2PT statistics for all Layer 2 Ethernet and aggregate interfaces.

<Sysname> display l2protocol statistics

L2PT statistics information on interface Bridge-Aggregation1:

Protocol  Encapsulated      Decapsulated      Forwarded         Dropped

CDP       0                 0                 0                 0

DLDP      0                 3                 0                 0

EOAM      0                 2                 0                 0

GVRP      8                 4                 9                 2

LACP      0                 0                 0                 0

LLDP      0                 3                 0                 0

MVRP      0                 0                 0                 0

PAGP      0                 1                 0                 0

PVST      0                 0                 0                 0

STP       5                 5                 5                 0

Tunnel    N/A               N/A               100               10

VTP       0                 6                 0                 0

UDLD      0                 0                 0                 0

DTP       0                 0                 0                 0

CFD       0                 0                 0                 0

 

L2PT statistics information on interface Ten-GigabitEthernet3/0/1:

Protocol  Encapsulated      Decapsulated      Forwarded         Dropped

CDP       0                 0                 0                 0

DLDP      2                 3                 3                 0

EOAM      5                 2                 9                 0

GVRP      8                 4                 9                 2

LACP      0                 0                 0                 0

LLDP      3                 3                 3                 3

MVRP      0                 0                 0                 0

PAGP      5                 1                 7                 3

PVST      0                 0                 0                 0

STP       5                 5                 5                 0

Tunnel    N/A               N/A               100               10

VTP       0                 6                 0                 0

UDLD      0                 0                 0                 0

DTP       0                 0                 0                 0

CFD       0                 0                 0                 0

Table 1 Command output

Field	Description
Encapsulated	Number of encapsulated packets.  The number increases by 1 when the interface receives and encapsulates a protocol packet from a customer network. For protocol Tunnel, which represents tunneled packets, this field displays N/A.
Decapsulated	Number of decapsulated packets. The number increases by 1 when the interface receives and decapsulates a tunneled packet from the service provider network. For protocol Tunnel, which represents tunneled packets, this field displays N/A.
Forwarded	Number of forwarded packets. The number increases by 1 when the interface receives a protocol packet and forwards it. The number increases by 1 for protocol Tunnel when the interface receives a tunneled packet and forwards it. If no interface of the PE is connected to customer networks, the number does not increase.
Dropped	Number of dropped packets. The number increases by 1 when the interface receives a protocol packet and drops it. Protocol packets dropped by hardware are not counted. The number increases by 1 for protocol Tunnel when the interface receives a tunneled packet and drops it.

‌

l2protocol rate-limit

Use l2protocol rate-limit to configure the maximum rate of transparently transmitting packets of the specified protocol on an L2TP-enabled interface. 

Use undo l2protocol rate-limit to cancel the maximum rate of transparently transmitting packets of the specified protocol on an L2TP-enabled interface.

Syntax

In Layer 2 Ethernet interface view:

l2protocol rate-limit rate [ cdp | dldp | eoam | gvrp | lacp | lldp | mvrp | pvst | stp ]

undo l2protocol rate-limit [ cdp | dldp | eoam | gvrp | lacp | lldp | mvrp | pvst | stp ]

In Layer 2 aggregate interface view:

l2protocol rate-limit rate [ cdp | gvrp | lacp | lldp | mvrp  | pvst | stp ]

undo l2protocol rate-limit [ cdp | gvrp | lacp | lldp | mvrp | pvst | stp ]

Default

The device does not limit the rate of transparently transmitting packets of a protocol on an L2TP-enabled interface.

Views

Layer 2 Ethernet interface view

Layer 2 aggregate interface view

Predefined user roles

network-admin

mdc-admin

Parameters

rate rate: Specifies the maximum number of packets of the specified protocol that can be transparently transmitted per second on an L2TP-enabled interface. The excessive packets will be dropped. The value range for this argument is 1 to 100.

cdp: Specifies CDP.

dldp: Specifies DLDP.

eoam: Specifies EOAM.

gvrp: Specifies GVRP.

mvrp: Specifies MVRP.

lacp: Specifies LACP.

lldp: Specifies LLDP.

pvst: Specifies PVST.

stp: Specifies STP.

Usage guidelines

When there are a large number of protocol packets on the user side, the bandwidth resources of an L2TP-enabled interface might be all occupied by few protocols. As a result, packets of the other protocols will be congested and cannot be transparently transmitted. By executing this command to configure the maximum rate of transparently transmitting packets of each protocol on an interface, you can easily plan the bandwidth ratio for each protocol and fully utilize the interface bandwidth resources.

If you do not specify any protocol, this command configures the maximum rate of transparently transmitting packets of each protocol.

Examples

# Configure the maximum rate of transparently transmitting packets of the LACP protocol as 50 pps on Ten-GigabitEthernet 3/0/1.

<Sysname> system-view

[Sysname] interface ten-gigabitethernet 3/0/1

[Sysname-Ten-GigabitEthernet3/0/1] l2protocol rate-limit 50 lacp

# Configure the maximum rate of transparently transmitting packets of the LACP protocol as 50 pps on Layer 2 aggregate interface Bridge-Aggregation 1.

<Sysname> system-view

[Sysname] interface bridge-aggregation 1

[Sysname-Bridge-Aggregation1] l2protocol rate-limit 50 lacp

Related commands

l2protocol tunnel dot1q

l2protocol tunnel dot1q

Use l2protocol tunnel dot1q to enable L2PT for a protocol.

Use undo l2protocol tunnel dot1q to disable L2PT for a protocol.

Syntax

In Layer 2 Ethernet interface view:

l2protocol { cdp | dldp | eoam | gvrp | lacp | lldp | mvrp | pvst | stp } tunnel dot1q

undo l2protocol { cdp | dldp | eoam | gvrp | lacp | lldp | mvrp | pvst | stp } tunnel dot1q

In Layer 2 aggregate interface view:

l2protocol { cdp | gvrp | lacp | lldp | mvrp | pvst | stp } tunnel dot1q

undo l2protocol { cdp | gvrp | lacp | lldp | mvrp | pvst | stp } tunnel dot1q

Default

L2PT is disabled for all protocols.

Views

Layer 2 Ethernet interface view

Layer 2 aggregate interface view

Predefined user roles

network-admin

mdc-admin

Parameters

cdp: Specifies CDP.

dldp: Specifies DLDP.

eoam: Specifies EOAM.

gvrp: Specifies GVRP.

lacp: Specifies LACP.

lldp: Specifies LLDP. L2PT for LLDP supports LLDP packets from only nearest bridge agents.

mvrp: Specifies MVRP.

pvst: Specifies PVST.

stp: Specifies STP.

Usage guidelines

Before you enable L2PT for a protocol on a port, perform the following tasks:

·     Enable the protocol on the CE, and disable the protocol on the port.

·     Enable L2PT only on customer-facing PE ports. If you enable L2PT on ports connected to the service provider network, L2PT determines that the ports are connected to a customer network.

·     Disable the protocol (for example, STP) on the PE ports connecting to an aggregate interface on a CE when the following conditions exist:

¡     The protocol is running on the aggregate interface on the CE.

¡     The aggregate interface on the CE connects to an L2PT-enabled port on the PE.

Do not enable L2PT on a port that is going to join a service loopback group.

You can enable L2PT on member ports of a Layer 2 aggregation group, but the configuration does not take effect.

Examples

# Disable STP and enable L2PT for STP on Ten-GigabitEthernet 3/0/1.

<Sysname> system-view

[Sysname] interface ten-gigabitethernet 3/0/1

[Sysname-Ten-GigabitEthernet3/0/1] undo stp enable

[Sysname-Ten-GigabitEthernet3/0/1] l2protocol stp tunnel dot1q

# Disable STP and enable L2PT for STP on Bridge-Aggregation 1.

<Sysname> system-view

[Sysname] interface bridge-aggregation 1

[Sysname-Bridge-Aggregation1] undo stp enable

[Sysname-Bridge-Aggregation1] l2protocol stp tunnel dot1q

l2protocol tunnel-dmac

Use l2protocol tunnel-dmac to set the destination multicast MAC address for tunneled packets of all protocols.

Use undo l2protocol tunnel-dmac to restore the default.

Syntax

l2protocol tunnel-dmac mac-address

undo l2protocol tunnel-dmac

Default

The tunneled packets of all protocols use 010f-e200-0003 as the destination multicast MAC address.

Views

System view

Predefined user roles

network-admin

mdc-admin

Parameters

mac-address: Specifies a destination multicast MAC address. The available addresses are 0100-0ccd-cdd0, 0100-0ccd-cdd1, 0100-0ccd-cdd2, and 010f-e200-0003.

Usage guidelines

The l2protocol tunnel-dmac command sets the destination multicast MAC address for tunneled packets of all protocols. The l2protocol type tunnel-dmac command sets the destination multicast MAC address for tunneled packets of the specified protocol. If both commands are executed, the l2protocol type tunnel-dmac command takes priority.

Examples

# Set the destination multicast MAC address to 0100-0ccd-cdd0 for tunneled packets.

<Sysname> system-view

[Sysname] l2protocol tunnel-dmac 0100-0ccd-cdd0

Related commands

l2protocol type tunnel-dmac

reset l2protocol statistics

Use reset l2protocol statistics to clear L2PT statistics.

Syntax

reset l2protocol statistics [ interface interface-type interface-number ]

Views

User view

Predefined user roles

network-admin

mdc-admin

Parameters

interface interface-type interface-number: Specifies a Layer 2 Ethernet or aggregate interface by its type and number. If you do not specify this option, the command clears L2PT statistics on all Layer 2 Ethernet and aggregate interfaces.

Examples

# Clear L2PT statistics on all Layer 2 Ethernet and aggregate interfaces.

<Sysname> reset l2protocol statistics