Installation manual

3-177
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Web – Click Spanning Tree, MSTP, Port Configuration or Trunk Configuration. Enter the
priority and path cost for an interface, and click Apply.
Figure 3-98 Displaying MSTP Interface Settings
CLI – This example sets the MSTP attributes for port 4.
VLAN Configuration
IEEE 802.1Q VLANs
In large networks, routers are used to isolate broadcast traffic for each subnet into
separate domains. This switch provides a similar service at Layer 2 by using VLANs to
organize any group of network nodes into separate broadcast domains. VLANs confine
broadcast traffic to the originating group, and can eliminate broadcast storms in large
networks. This also provides a more secure and cleaner network environment.
An IEEE 802.1Q VLAN is a group of ports that can be located anywhere in the network,
but communicate as though they belong to the same physical segment.
VLANs help to simplify network management by allowing you to move devices to a new
VLAN without having to change any physical connections. VLANs can be easily
organized to reflect departmental groups (such as Marketing or R&D), usage groups
(such as e-mail), or multicast groups (used for multimedia applications such as
videoconferencing).
VLANs provide greater network efficiency by reducing broadcast traffic, and allow you to
make network changes without having to update IP addresses or IP subnets. VLANs
Console(config)#interface ethernet 1/4 4-186
Console(config-if)#spanning-tree mst port-priority 0 4-233
Console(config-if)#spanning-tree mst cost 50 4-232
Console(config-if)