Mac-Based Vlan Limitations; Mac-Based Vlan Example; Timed Configuration Download For Mac-Based Vlans - Extreme Networks ExtremeWare 7.2e Installation And User Manual

Virtual LANs (VLANs)
00:00:00:00:00:01
2 matching entries
• The group "any" is equivalent to the group "0". Ports that are configured as "any" allow any MAC
address to be assigned to a VLAN, regardless of group association.
• Partial configurations of the MAC to VLAN database can be downloaded to the switch using the
timed download configuration feature.

MAC-Based VLAN Limitations

The following list contains the limitations of MAC-based VLANs:
• Ports participating in MAC VLANs must first be removed from any static VLANs.
• The MAC- to-VLAN mapping can only be associated with VLANs that exist on the switch.
• A MAC address cannot be configured to associate with more than 1 VLAN. If this is attempted, the
MAC address is associated with the most recent VLAN entry in the MAC-to-VLAN database.
• The feature is intended to support one client per physical port. Once a client MAC address has
successfully registered, the VLAN association remains until the port connection is dropped or the
FDB entry ages out.

MAC-Based VLAN Example

In this following example, three VLANs are created: engineering, marketing, and sales. A single MAC
address is associated with each VLAN. The MAC address 00:00:00:00:00:02 has a group number of
"any" or "0" associated with it, allowing it to be plugged into any port that is in MacVlanDiscover
mode (ports 10-15 in this case). The MAC address 00:00:00:00:00:01 has a group number of 10 associated
with it, and can only be assigned to a VLAN if inserted into ports 16 or 17. The MAC address
00:00:00:00:00:03 has a group number of 200 associated with it and can only be inserted into ports 18
through 20.
enable mac-vlan mac-group any ports 10-15
enable mac-vlan mac-group 10 ports 16-17
enable mac-vlan mac-group 200 ports 18-20
configure mac-vlan add mac-address 00:00:00:00:00:01 mac-group 10 engineering
configure mac-vlan add mac-address 00:00:00:00:00:02 mac-group any marketing
configure mac-vlan add mac-address 00:00:00:00:00:03 mac-group 200 sales

Timed Configuration Download for MAC-Based VLANs

To allow centralized control of MAC-based VLANs over multiple switches, a timed TFTP configuration
download allows you to download incremental configuration files from a primary or secondary server
at specified time intervals. The timed downloads are configurable in 24 hour intervals. When a switch
reboots, the configuration is automatically downloaded immediately after booting, per the configured
primary and secondary servers.
To configure the primary and/or secondary server and file name, use the following command:
configure download server [primary | secondary] [<ip address> | <hostname>] <filename>
To enable timed interval downloads, use the following command:
download configuration every <time>
100
sales any
ExtremeWare 7.2e Installation and User Guide