connection
Function
The connection command creates a connection in Kompella mode between CEs.
The undo connection ce-offset command deletes a connection in Kompella mode between CEs.
By default, no connection in Kompella mode is created between CEs.
Format
connection [ ce-offset id ] interface interface-type interface-number [ tunnel-policy policy-name ] [ raw | tagged ] [ secondary ]
undo connection ce-offset id
Parameters
| Parameter | Description | Value |
|---|---|---|
ce-offset id |
Specifies the ID of the peer CE connected to the L2VPN. |
The value is a decimal integer that ranges from 0 to 249. id must be not more than ce-range. For the configuration about ce-range, see ce. For a remote connection, ce-offset and the ID of the remote CE must be the same; for a local connection between two CEs, ce-offset of a CE is the ID of the other CE. |
interface interface-type interface-number |
Specifies the type and number of the interface connected to the CE.
|
- |
tunnel-policy policy-name |
Specifies the name of a tunnel policy applied to a VLL connection. |
The value is a string of 1 to 39 case-sensitive characters, spaces not supported. When double quotation marks are used around the string, spaces are allowed in the string. |
raw |
Sets the encapsulation mode to raw mode. In raw mode, the device deletes the Provider tag (P-Tag) in the packets. The P-Tag is inserted by an SP device to distinguish traffic from different users. |
- |
tagged |
Sets the encapsulation mode to tagged mode. In tagged mode, the device retains the P-Tag in the packets. |
- |
secondary |
Specifies the secondary connection of the CE. If this parameter is not specified, the new connection becomes the primary connection. Specify this parameter only when a primary connection exists locally. |
- |
Usage Guidelines
Usage Scenario
In a Kompella VLL networking, you can use the connection command to create a connection.
Precautions
An interface cannot serve as an L2VPN AC interface and L3VPN AC interface at the same time. After an interface is bound to an L2VPN, the Layer 3 features such as the IP address and routing protocol configured on this interface become invalid.
When the sub-interface is bound to a VLL, the encapsulation protocol type of the main interface cannot be changed.
If a sub-interface is bound to a VLL, the sub-interface can be deleted only after the sub-interface is unbound from the VLL.
VLANIF interfaces, XGE interfaces, 25GE interface, MultiGE interface, 40GE interfaces, 100GE interfaces, GE interfaces, Eth-Trunk interfaces, XGE sub-interfaces, 25GE sub-interface, MultiGE sub-interfaces, 40GE sub-interfaces, 100GE sub-interfaces, GE sub-interfaces, or Eth-Trunk sub-interfaces can be used as AC interfaces connected to CEs.
To use an XGE interface, a GE interface, a 25GE interface, a MultiGE interface, a 40GE interface, a 100GE interface, or an Eth-Trunk interface of the device as the AC interface of the PE, run the undo portswitch command to change a Layer 2 interface to a Layer 3 interface.
The management interface cannot be configured as the AC interface connected to a CE.
When creating a connection in Kompella mode, you need to specify the peer CE ID and the local CE interface.
If you do not specify ce-offset id:
For the first connection of the CE, by default, ce-offset id is the same as the default-offset. For the description about default-offset, see ce. If ce-offset equals the current CE ID, ce-offset increases by 1.
For other connections, ce-offset id is the last CE ID plus 1. If the CE offset ID of the last connection plus 1 equals the current CE ID, the ce-offset id is the value obtained by CE offset of the last connection plus 2.
It is recommended that you number CE IDs from 1 in ascending order, and to configure connections in the order of CE IDs. To simplify configuration, you can use the default ce-offset directly in most connections.
After the command is configured, the default policy is adopted in the following situations:
If you do not specify a policy name
If the specified policy is not configured
In the default policy:
Only LSP tunnels are selected.
No load balancing is performed.
By default, link type negotiation is enabled globally on the device. If a VLANIF interface is used as an AC-side interface for L2VPN, the configuration conflicts with link type negotiation. In this case, run the lnp disable command in the system view to disable link type negotiation.
Example
# Create a connection in Kompella mode.
<HUAWEI1> system-view [HUAWEI1] mpls l2vpn vpn1 encapsulation vlan [HUAWEI1-mpls-l2vpn-vpn1] route-distinguisher 100:1 [HUAWEI1-mpls-l2vpn-vpn1] vpn-target 1:1 [HUAWEI1-mpls-l2vpn-vpn1] ce ce1 id 1 range 10 [HUAWEI1-mpls-l2vpn-ce-vpn1-ce1] connection ce-offset 2 interface vlanif 10
<HUAWEI2> system-view [HUAWEI2] mpls l2vpn vpn1 encapsulation vlan [HUAWEI2-mpls-l2vpn-vpn1] route-distinguisher 100:1 [HUAWEI2-mpls-l2vpn-vpn1] vpn-target 1:1 [HUAWEI2-mpls-l2vpn-vpn1] ce ce2 id 2 range 10 [HUAWEI2-mpls-l2vpn-ce-vpn1-ce2] connection ce-offset 1 interface vlanif 20