Enterasys Networks D-Series - Manual (Page 273)

Enterasys D-Series CLI Reference 9-1
9
802.1Q VLAN Configuration
This chapter describes the D‐Series system’s capabilities to implement 802.1Q virtual LANs
(VLANs).
VLAN Configuration Summary
Virtual LANs allow the network administrator to partition network traffic into logical groups and
control the flow of that traffic through the network. Once the traffic and, in effect, the users
creating the traffic, are assigned to a VLAN, then broadcast and multicast traffic is contained
within the VLAN and users can be allowed or denied access to any of the network’s resources.
Also, some or all of the ports on the device can be configured as GVRP ports, which enable frames
received with a particular VLAN ID and protocol to be transmitted on a limited number of ports.
This keeps the traffic associated with a particular VLAN and protocol isolated from the other parts
of the network.
Port String Syntax Used in the CLI
For information on how to designate VLANs and port numbers in the CLI syntax, refer to “ Port
String Syntax Used in the CLI ” on page 6‐1.
Creating a Secure Management VLAN
By default at startup, there is one VLAN configured on the D‐Series device. It is VLAN ID 1, the
DEFAULT VLAN. The default community name, which determines remote access for SNMP
management, is set to “public” with read‐write access.
For information about... Refer to page...
VLAN Configuration Summary 9-1
Viewing VLANs 9-2
Creating and Naming Static VLANs 9-5
Assigning Port VLAN IDs (PVIDs) and Ingress Filtering 9-8
Configuring the VLAN Egress List 9-13
Setting the Host VLAN 9-18
Enabling/Disabling GVRP (GARP VLAN Registration Protocol) 9-20
Note: The device can support up to 1024 802.1Q VLANs. The allowable range for VLAN IDs is 1
to 4093. As a default, all ports on the device are assigned to VLAN ID 1, untagged.