Intel ZT8101 user manual Static Port-BasedVLANs, Switch Management and Operating Concepts

Switch Management and Operating Concepts

•Load balancing is automatically applied to the links in the aggregation group, and a link failure within the group causes the network traffic to be directed to the remaining links in the group.

•Switches that use a load-balancing scheme that sends the packets of a host-to-host data stream over multiple ports cannot have a trunk connection with the ZT8101 switch.

•Enable the group prior to connecting any cable between the switches to avoid creating a data loop. Disconnect all link aggregation cables or disable the ports before removing a link aggregation group to avoid creating a data loop.

VLANs

VLANs allow you to group some physical ports as if they were on the same LAN. VLAN can be created either statically or dynamically.

•Static VLAN—Ports are assigned to a specific VLAN.

•Dynamic VLAN—Using GVRP (GARP VLAN Registration Protocol), ports are allowed to dynamically join a VLAN group.

VLANs reduce traffic because traffic between VLANs is restricted. Bridges forward unicast, multicast, and broadcast traffic only on LAN segments that serve the VLAN to which the traffic belongs.

For static VLAN configuration, the switch supports two kinds of VLANs:

•Static port—Uses untagged frames.

•Static IEEE 802.1Q VLAN—Uses tagged or untagged frames. Ports that use tagged frames can belong to more than one VLAN.

By default, all ports belong to a special VLAN called “default.” This default VLAN is a static IEEE802.1Q VLAN, which has the following unique characteristics:

•The name and the type fields are read-only.

•It cannot be deleted.

•It can contain no VLAN members.

•Its VID is 1, which cannot be changed.

All user-configured VLANs have the following characteristics:

•The size of VLAN name field is 32 bytes.

•Ingress checking is set to on.

•Up to 32 static VLANs can be configured.

The switch supports a maximum of 255 VLANs (64 static, the rest dynamic).

Static Port-Based VLANs

A port-based VLAN is the easiest type to configure on the switch because you only need to specify the following:

•VLAN name

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