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Iuwne10 S01 L09

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Wireless Frame Journey: IUWNE v1.0—1-*
IUWNE v1.0—1-*
Discovering the Network
IUWNE v1.0—1-*
IUWNE v1.0—1-*
Clients in Cells
IUWNE v1.0—1-*
IUWNE v1.0—1-*
IUWNE v1.0—1-*
Acknowledging the Frame
IUWNE v1.0—1-*
IUWNE v1.0—1-*
IUWNE v1.0—1-*
© 2008 Cisco Systems, Inc. All rights reserved.
IUWNE v1.0—1-*
IUWNE v1.0—1-*
IUWNE v1.0—1-*
© 2008 Cisco Systems, Inc. All rights reserved.
IUWNE v1.0—1-*
IUWNE v1.0—1-*
© 2008 Cisco Systems, Inc. All rights reserved.
IUWNE v1.0—1-*
© 2008 Cisco Systems, Inc. All rights reserved.
IUWNE v1.0—1-*
© 2008 Cisco Systems, Inc. All rights reserved.
IUWNE v1.0—1-*
© 2008 Cisco Systems, Inc. All rights reserved.
IUWNE v1.0—1-*
IUWNE v1.0—1-*
IUWNE v1.0—1-*
Understanding Native VLANs
IUWNE v1.0—1-*
1 SSID => 1 subnet and 1 VLAN tag
© 2008 Cisco Systems, Inc. All rights reserved.
IUWNE v1.0—1-*
Save the VLAN configuration.
IUWNE v1.0—1-*
VLAN Creation Guidelines
VLAN 1 is the factory default Ethernet VLAN.
Cisco Discovery Protocol is sent on native untagged VLAN.
The Cisco Catalyst switch IP address is in the management VLAN (VLAN 1 by default).
© 2008 Cisco Systems, Inc. All rights reserved.
IUWNE v1.0—1-*
Adding a VLAN
IUWNE v1.0—1-*
© 2008 Cisco Systems, Inc. All rights reserved.
IUWNE v1.0—1-*
Verifying VLAN Membership
IUWNE v1.0—1-*
IUWNE v1.0—1-*
802.1Q Trunking
Make sure that the native VLAN for an 802.1Q trunk is the same on both ends of the trunk link.
Note that native VLAN frames are untagged.
© 2008 Cisco Systems, Inc. All rights reserved.
IUWNE v1.0—1-*
Configuring 802.1Q Trunking
IUWNE v1.0—1-*
Verifying a Trunk
IUWNE v1.0—1-*
Summary
When wireless frames transit to the wired side of the network, the body is unchanged but the header is transformed to a 802.3 header.
VLANs provide on Ethernet segments the segmentation that SSIDs bring to the wireless side.
VLANs create tags on frames, and trunks carry these framed tags from switch to switch.
VLAN membership can be static or dynamic.
Controllers tag frames, and the other end, which is a switch, has to be in trunk mode.
A switch has a “native VLAN,” which is usually not tagged on a trunk.
Configuring static VLANs consists of creating them and assigning a port to them.
© 2008 Cisco Systems, Inc. All rights reserved.
IUWNE v1.0—1-*