mpls l2vpn hard-pipe bandwidth

Function

The mpls l2vpn hard-pipe bandwidth command enables the hard pipe function for static PWs on an interface.

The undo mpls l2vpn hard-pipe command disables the hard pipe function of static PWs on an interface.

By default, the hard pipe function is not enabled for static PWs.

Format

mpls l2vpn hard-pipe bandwidth bandwidth [ burst-time burst-time ] [ expand-ratio expand-ratio ]

undo mpls l2vpn hard-pipe [ { bandwidth bandwidth } [ burst-time burst-time ] [ expand-ratio expand-ratio ] ]

Parameters

Parameter	Description	Value
bandwidth bandwidth	Specifies the AC interface bandwidth. The bandwidth of non-Ethernet interface is fixed. The bandwidth bandwidth parameter must be specified if an Ethernet interface functions as the AC interface and cannot be specified if a non-Ethernet interface functions as the AC interface.	The value is an integer ranging from 16 to 4294967294, in kbit/s. The bandwidth range is consistent with that for the user-queue command.
burst-time burst-time	Specifies the burst time for a hard pipe. A device is configured with strong anti-burst capability because of CAR limit. In the hard pipe scenarios, the use of CAR limit on an AC interface requires the restriction on the anti-burst capability. Otherwise, the delay in forwarding the burst traffic on the PW-side interface cannot be ensured. To reduce the delay in traffic forwarding, you can configure the burst-time burst-time parameter to adjust the traffic burst time on the AC interface. This configuration helps control the committed burst size (CBS) and flexibly adjust the delay on the hard pipe and anti-burst performance. Because the bandwidth delay on a non-Ethernet interface is fixed, non-Ethernet interfaces do not support the configuration of the burst-time burst-time parameter. However, if an AC interface is an Ethernet interface, you can configure this parameter.	The value is an integer ranging from 100 to 5000, in microseconds. The default value is 100 microseconds.
expand-ratio expand-ratio	Specifies the bandwidth expansion ratio for an AC interface.	The value is an integer ranging from 0 to 100. The default value is 10. The value is an integer for CES services, it ranges from 0 to 10000; for other types of services, it is in the range of 0 to 100, in kbit/s. The default value is 10 kbit/s.

Parameter

Description

Value

bandwidth bandwidth

Specifies the AC interface bandwidth.

The bandwidth of non-Ethernet interface is fixed. The bandwidth bandwidth parameter must be specified if an Ethernet interface functions as the AC interface and cannot be specified if a non-Ethernet interface functions as the AC interface.

The value is an integer ranging from 16 to 4294967294, in kbit/s.

The bandwidth range is consistent with that for the user-queue command.

burst-time burst-time

Specifies the burst time for a hard pipe.

A device is configured with strong anti-burst capability because of CAR limit. In the hard pipe scenarios, the use of CAR limit on an AC interface requires the restriction on the anti-burst capability. Otherwise, the delay in forwarding the burst traffic on the PW-side interface cannot be ensured. To reduce the delay in traffic forwarding, you can configure the burst-time burst-time parameter to adjust the traffic burst time on the AC interface. This configuration helps control the committed burst size (CBS) and flexibly adjust the delay on the hard pipe and anti-burst performance.

Because the bandwidth delay on a non-Ethernet interface is fixed, non-Ethernet interfaces do not support the configuration of the burst-time burst-time parameter. However, if an AC interface is an Ethernet interface, you can configure this parameter.

The value is an integer ranging from 100 to 5000, in microseconds. The default value is 100 microseconds.

expand-ratio expand-ratio

Specifies the bandwidth expansion ratio for an AC interface.

The value is an integer ranging from 0 to 100. The default value is 10.

The value is an integer for CES services, it ranges from 0 to 10000; for other types of services, it is in the range of 0 to 100, in kbit/s. The default value is 10 kbit/s.

Views

100GE interface view, 10GE interface view, 200GE sub-interface view, 25GE sub-interface view, 25GE interface view, 400GE sub-interface view, 400GE interface view, 40GE interface view, 50GE sub-interface view, 50GE interface view, Eth-Trunk sub-interface view, Eth-Trunk interface view, FlexE sub-interface view, FlexE interface view, GE optical interface view, GE sub-interface view, GE interface view, GE electrical interface view, Global VE sub-interface view, VE sub-interface view, XGE sub-interface view, XGE interface view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
l2vpn	write

Usage Guidelines

Usage Scenario

IP hard pipe is a pipe technology that establishes a static PW over a static bidirectional co-routed LSP to simulate an SDH leased line.

In an IP hard pipe scenario, bandwidth must be reserved for PWs on the public network side. To configure the hard pipe function for static PWs on an interface, run the mpls l2vpn hard-pipe command. After the bandwidth expansion ratio of an AC interface is specified, the device automatically calculates the bandwidth reserved for the static PW on the public network side using either of the following formulas:

Ethernet AC interface: Reserved static PW bandwidth = bandwidth/(1 - expand-ratio/100)
Non-Ethernet AC interface: Reserved static PW bandwidth = AC interface bandwidth/(1 - expand-ratio/10000)

Prerequisites

A static PW has been created using the mpls static-l2vc command.

Configuration Impact

After the mpls l2vpn hard-pipe command is run on an interface, all static PWs on the interface have the hard pipe function, including primary, secondary, and bypass PWs.

Precautions

The mpls l2vpn hard-pipe command can be configured only on the AC interfaces for static PWs, including SS-PWs and MS-PWs.

On the same interface, the mpls l2vpn hard-pipe command is mutually exclusive with the following commands:

qos-profile (interface view)
user-queue (interface view)

Example

# Configure the bandwidth of GE0/1/0.1 as 50 kbit/s and the bandwidth expansion ratio as 20%.

<HUAWEI> system-view
[~HUAWEI] interface Tunnel 10
[~HUAWEI-Tunnel10] quit
[~HUAWEI] tunnel-policy policy1
[*HUAWEI-tunnel-policy-policy1] tunnel binding destination 3.3.3.3 te Tunnel 10
[*HUAWEI-tunnel-policy-policy1] quit
[*HUAWEI] mpls
[*HUAWEI-mpls] quit
[*HUAWEI] mpls l2vpn
[*HUAWEI-l2vpn] quit
[*HUAWEI] interface GigabitEthernet 0/1/0.1
[*HUAWEI-GigabitEthernet0/1/0.1] mpls static-l2vc destination 1.1.1.1 1 transmit-vpn-label 100 receive-vpn-label 100 tunnel-policy policy1
[*HUAWEI-GigabitEthernet0/1/0.1] mpls l2vpn hard-pipe bandwidth 50 expand-ratio 20