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CCNP BCMSN Notes - VLANs and Trunks


The normal range allows for VLANs 1 -1005; IEEE 802.1Q expands this to 1 - 4095.

VTP version 1 and 2 only support VLANs 1 - 1005. VTPv3 will support extended VLANs but isn't available yet.

Dynamic VLANs can be configured by a VLAN Membership Policy Server (VMPS).

Trunk types:

     Inter-Switch Link (ISL) - Cisco proprietary; 26-byte header

     IEEE 802.1Q - Open standard; 4-byte header

IEEE 802.3ac extends the Ethernet MTU to 1522 to account for the 4-byte 802.1Q header.

Trunk configuration:

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Post date: 2009-10-30 15:50:45
Post date GMT: 2009-10-30 07:50:45
Post modified date: 2010-07-23 00:50:56
Post modified date GMT: 2010-07-22 16:50:56
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