VCCV-PING
The S7700 supports VC Connectivity Verification (VCCV) negotiation and VCCV-PING on
U-PEs of a static PW, dynamic PW, SH-PW, and MH-PW.
The VCCV-PING has two modes: CW mode and Label Alert mode.
l The CW mode supports VCCV between two U-PEs.
l The Label Alert mode supports VCCV-PING between U-PEs and VCCV-PING between
a U-PE and an S-PE.
PW Template
A PW template is a set of common attributes abstracted from PWs. A PW template can be shared
by different PWs. To facilitate the expansion, you can configure the common attributes of certain
PWs into a PW template. When creating a PW in interface mode, you can use this PW template.
The PW can be bound with PW template and can be reset.
Other Features
The other features supported by the S7700 are as follows:
l Supporting the PW protection (the signaling is LDP)
You can configure two PWs with different PW IDs on the same interface. One serves as
the master PW, and the other serves as the backup PW. When the master PW fails, the
service is switched to the backup PW automatically. This configuration fits better for an
MH PW.
l Supporting the PW to be configured on a VLANIF interface, XGE interface, GE interface,
Ethernet interface, Eth-Trunk interface, XGE sub-interface, GE sub-interface, Ethernet
sub-interface, and Eth-Trunk sub-interface
l Supporting the PWE3 configuration on Layer 2 devices
6.3 Configuring the Attributes of a PW Template
This section describes how to import a PW template to simplify the configurations of PWs with
similar attributes.
6.3.1 Establishing the Configuration Task
Before configuring the attributes of a PW template, familiarize yourself with the applicable
environment, complete the pre-configuration tasks, and obtain the required data. This can help
you complete the configuration task correctly and quickly.
Applicable Environments
Using the pw-template command, you can set the attributes for a PW, such as the peer, CW,
and tunnel policy. Importing a PW template simplifies the process of configuring the PWs with
similar attributes. The PW template is configured on a U-PE.
To verify the PW connectivity, you must configure the PW with a PW template.
Quidway S7700 Smart Routing Switch
Configuration Guide - VPN 6 PWE3 Configuration
Issue 01 (2011-07-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
551
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