Vlan Based Hvlan - Allied Telesis SwitchBlade x3100 Series Manual

Introduction

4.9.4 VLAN Based HVLAN

This feature allows a customer VLAN that is configured on several interfaces to have an outer tag applied. The
outer VLAN can be configured so that it goes to a specific ISP, such as one that provides data or voice.
VLANs that are configured for multicast traffic, such as those for video service, are not part of this
Note:
feature.
With the port-based HVLAN, once a customer interface is assigned to an HVLAN all ingress frames are inter-
nally tagged with the HVLAN. In contrast, the VLAN-based HVLAN feature assigns an outer tag to a single-
tagged egress frame (exiting the shelf).
4.9.4.1 VLAN-based HVLAN Configuration
Refer to Figure 4-26, which shows an example configuration with the following VLANs:
The outer tags that are applied to VLAN-based HVLANs are referred to as Service VLANs, or
Note:
SVLANS.
VLAN 10 is a multicast VLAN that is routed to a Video Head end. It is passed through the XE4 card.
•
VLAN 20 is a VLAN for data service and connects to an ISP that handles data service.
•
VLAN 30 is a VLAN for voice service and connects to an ISP that handles voice service.
•
VLAN 20 traffic is given an outer tag of SVLAN 200 and then passed through the systems to the ISP. Note that
other customers on different customer interfaces (and different systems) can also be a member of VLAN 20
with an outer tag of SVLAN200, and routed to the ISP. The same is true for VLAN 30.
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Software Reference for SwitchBlade x3100 Series Switches (Layer Two Switching)
VLAN Based HVLAN