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C H A P T E R 7 Virtual LANs (VLANs)
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Table 7.2 describes the commands used to configure a VLAN. For
a complete list of command options, press the Tab key in the
command line interface.
Table 7.2: VLAN Configuration Commands
Command Description
configure dot1q ethertype <ethertype> Configures an IEEE 802.1Q Ethertype. Use
this command only if you have another switch
that supports 802.1Q, but uses an Ethertype
value other than 8100. You must reboot the
switch for this command to take effect.
configure protocol <protocol_name> [add |
delete] <protocol_type> <hex_value>
{<protocol_type> <hex_value>} ...
Configures a protocol filter. Supported
<
protocol_type> values include:
•
etype
• llc
• snap
The variable <hex_value> is a hexadecimal
number between 0 and FFFF that represents
either the Ethernet protocol type, the
Destination Service Access Point/Session
Service Access Point (DSAP/SSAP)
combination (for Link Level Control (LLC)),
or the Subnetwork Network Access Protocol
(SNAP)-encoded Ethernet protocol type (for
SNAP).
configure vlan <name> add port [<portlist> |
all] {tagged | untagged} {nobroadcast}
Adds one or more ports to a VLAN. You can
specify tagged or untagged ports. Specify
nobroadcast to prevent the forwarding of
broadcast, multicast, and unknown unicast
traffic. By default, ports are untagged.
configure vlan <name> delete port [<portlist>
| all]
Deletes one or more ports from a VLAN.
configure vlan <name> ipaddress
<ipaddress> {<mask>}
Assigns an IP address and an optional mask to
the VLAN.