Dell PowerConnect 6248 User's Guide - Page 27
GVRP Support, Protected Ports Private VLAN Edge, Subnet-based VLAN, MAC-based VLAN, Double VLANs - trunking
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Page 27 highlights
GVRP Support GARP VLAN Registration Protocol (GVRP) provides IEEE 802.1Q-compliant VLAN pruning and dynamic VLAN creation on 802.1Q trunk ports. When GVRP is enabled, the switch registers and propagates VLAN membership on all ports that are part of the active spanning tree protocol topology. For information about configuring GVRP, see "GVRP Parameters." Protected Ports (Private VLAN Edge) Private VLAN Edge (PVE) ports are a Layer 2 security feature that provides port-based security between ports that are members of the same VLAN. It is an extension of the common VLAN. Traffic from protected ports is sent only to the uplink ports and cannot be sent to other ports within the VLAN. Subnet-based VLAN This feature allows incoming untagged packets to be assigned to a VLAN and traffic class based on the source IP address of the packet. For information about configuring Subnet-based VLANs, see "Bind IP Subnet to VLAN." MAC-based VLAN This feature allows incoming untagged packets to be assigned to a VLAN and traffic class based on the source MAC address of the packet. For information about configuring MAC-based VLANs, see "Bind MAC to VLAN." Double VLANs The Double VLAN feature allows the use of a second tag on network traffic. The additional tag helps differentiate between customers in the Metropolitan Area Networks (MAN) while preserving individual customer's VLAN identification when they enter their own 802.1Q domain. Protocol-based VLANs In a protocol-based VLAN, traffic is bridged through specified ports based on the VLAN's protocol. Userdefined packet filters determine if a particular packet belongs to a particular VLAN. Protocol-based VLANs are most often used in situations where network segments contain hosts running multiple protocols. Introduction 27