Configuring A Tunnel Interface - Huawei quidway s7700 Configuration Manual

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Quidway S7700 Smart Routing Switch

Configuration Guide - VPN

Tunnel Binding Mode

Tunnel binding indicates that a certain TE tunnel can only be applied for a specific VPN service.

PE1 and PE3.

Figure 1-1 Networking example using VPN primary tunnel binding

The QoS of both VPN A and VPN B is guaranteed if you configure the VPN primary tunnel

binding, that is, binding VPN A with Tunnel 1 and binding VPN B with Tunnel 2. After the

configuration, both VPN A and VPN B use separate TE tunnels. In this manner, services of VPN

A and VPN B are not affected by each other or other services.

The VPN primary tunnel binding has the following features:

You can arrange network resources by creating MPLS TE tunnels of different QoS features.

Then you can manually configure each TE tunnel to carry the corresponding VPN service.

Therefore, network resources can be optimally used.

1.3 Configuring a Tunnel Interface

Tunnel interfaces are point-to-point virtual interfaces that are used for encapsulating packets.

Similar to loopback interfaces, tunnel interfaces are logical interfaces.

Issue 01 (2011-07-15)

In IPv4 VPN networking, you can configure a maximum of six tunnels for load balancing. And in IPv6

VPN networking,the S7700 does not support load balancing by tunnels, that is, the number of tunnels for

load balancing is 1.

1-1, two MPLS TEs, namely, Tunnel1 and Tunnel2, are set up between

The VPN data to a specific peer PE is always transmitted through the bound TE tunnel.

The bound TE tunnel cannot be used in select-sequence mode or in load balancing.

VPN primary tunnel binding can only use the bound primary tunnel for the specific peer

PE. Other peer PEs, however, adopt the default tunnel policy.

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1 VPN Tunnel Management Configuration

VPN Backbone

TE Tunnel1 for VPNA

TE Tunnel2 for VPNB