Configuring VLANs
Client 1
Port 1/1
VLAN 101 | . . . |
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Ports 1/1 - 1/5
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Device A
Tag Type 8100
Device E
Tag Type 8100
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VLAN 103 | VLAN 105 | VLAN 101 | VLAN 103 | VLAN 105 | |||||||||||||||||||
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209.157.2.12/24
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Port 2/1 | Port 2/1 | Tag Type 8100 | |
Tagged | Tagged |
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Port 3/1 | Port 3/2 |
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Untagged | Untagged |
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Device C |
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Tag Type 9100 |
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VLAN Aggregation |
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Enabled | Port 4/1 |
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Device D |
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Tag Type 9100 |
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VLAN Aggregation |
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Enabled |
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Port 3/1 | Port 3/2 |
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Untagged | Untagged |
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Port 2/1 | Port 2/1 |
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Tagged |
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Tagged |
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Ports 1/1 - 1/5 | Ports 1/1 - 1/5 | Device F | |
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Untagged | Untagged | ||
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Figure 16.17 Example Super Aggregated VLAN Application
In this example, a collocation service provides private channels for multiple clients. Although the same devices are used for all the clients, the VLANs ensure that each client receives its own Layer 2 broadcast domain, separate from the broadcast domains of other clients. For example, client 1 cannot ping client 5.
The clients at each end of a channel appear to each other to be directly connected and thus can be on the same
Since each VLAN configured on the core devices is an aggregate of multiple client VLANs, the aggregated VLANs greatly increase the number of clients a core device can accommodate.
This example shows a single link between the core devices. However, you can use a trunk group to add
Configuring Aggregated VLANs
To configure aggregated VLANs, perform the following tasks:
•On each edge device, configure a separate
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