Contents

L2PT commands· 1

display l2protocol statistics· 1

l2protocol tunnel dot1q· 2

l2protocol tunnel-dmac· 3

reset l2protocol statistics· 4

 

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

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

 

L2PT statistics information on interface GigabitEthernet1/0/1:

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

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 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 | pagp | pvst | stp | udld | vtp } tunnel dot1q

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

In Layer 2 aggregate interface view:

l2protocol { gvrp | mvrp | pvst | stp | vtp } tunnel dot1q

undo l2protocol { gvrp | mvrp | pvst | stp | vtp } 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

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.

pagp: Specifies PAgP.

pvst: Specifies PVST.

stp: Specifies STP.

udld: Specifies UDLD.

vtp: Specifies VTP.

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.

Do not enable L2PT on a port that is going to join a service loopback group. All configuration is removed after the port joins the 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 GigabitEthernet 1/0/1.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] undo stp enable

[Sysname-GigabitEthernet1/0/1] 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.

Use undo l2protocol tunnel-dmac to restore the default.

Syntax

l2protocol tunnel-dmac mac-address

undo l2protocol tunnel-dmac

Default

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

Views

System view

Predefined user roles

network-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.

Examples

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

<Sysname> system-view

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

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

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