Configuring Vlan Mapping; Demonstrating One-To-One And Many-To-One Vlan Mapping - HP A5830 Configuration Manual

Configuring VLAN mapping

VLAN mapping re-marks VLAN tagged traffic with new VLAN IDs. HP provides the following types of
VLAN mapping:
 One-to-one VLAN mapping—Replaces one VLAN tag with another. use one-to-one VLAN mapping
to sub-classify traffic from a particular VLAN for granular QoS control.
Many-to-one VLAN mapping—Replaces multiple VLAN tags with the same VLAN tag. use many-to-

one VLAN mapping to aggregate traffic from different VLANs to regulate the aggregate traffic as a
whole. Many-to-one VLAN mapping is usually used together with one-to-one VLAN mapping.
One-to-two VLAN mapping—Tags single-tagged packets with an outer VLAN tag. One-to-two

VLAN mapping expands the VLAN tag space, and enables a service provider and its customers to
assign VLANs independently without the risk of VLAN assignment conflicts.
Two-to-two VLAN mapping—Replaces the outer and inner VLAN IDs of double tagged traffic with a

new pair of VLAN IDs. use two-to-two VLAN mapping to enable two remote sites in different VLANs
to communicate at Layer 2 across two service provider networks that use different VLAN assignment
schemes.

Demonstrating one-to-one and many-to-one VLAN mapping

Figure 55 shows a typical application scenario in which each home gateway uses different VLANs to
transmit the PC, VoD, and VoIP services.
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