Brocade Multi-Service IronWare Switching Configuration Gui Manuel d'utilisateur télécharger pdf (Page 218)

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Configuring 802.1q tag-type translation

FIGURE 16 802.1q Tag-type translation configuration example 1

As illustrated in Figure 16, the devices process the packet as follows:

• Customer Edge Switch 1 sends a packet with an 802.1q tag-type of 8100 to Provider Core

Switch 1.

• Since the customer-facing interface on Provider Core Switch 1 has the same 802.1q tag-type

as the incoming packet, it removes the 8100 tag-type and replaces (translates) it with the

9100 tag-type as it sends the packet to the uplink (Provider Core Switch 2).

• The same process occurs between Provider Core Switch 2 and Customer Edge Switch 2.

Figure 16 shows a simple application of the 802.1q tag-type translation in which all of the ports are

tagged and the tag-types between devices match. In this example, each device performs the

802.1q tag-type translation as the packet traverses the network.

Figure 17 shows a more complex example application in which some ports are untagged, not all

tag-types between devices match, and the core devices have multiple tag-types. In this example,

the tag-type translation feature integrates packets that have single and double tag-types.

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