KB.15.15

Table 6 VLAN membership in Example 46 “Management VLAN control in a LAN”

C8C6C3C2B9B5B4B2A7A6A3A1Switch

NNNYNNYYYNNY

Management VLAN

(VID = 7)

YYYNNNNNNNNN

Marketing VLAN

(VID = 12)

NNNNNNNNNYYN

Shipping Dept. VLAN

(VID = 20)

YYYYYYYYYYYY

DEFAULT-VLAN (VID

= 1)

Operating notes for Management VLANs

• Use only a static, port-based VLAN for the Management VLAN.

• The Management VLAN feature applies to both IPv4 and IPv6 traffic.

• The Management VLAN does not support IGMP operation.

• Routing between the Management VLAN and other VLANs is not allowed.

• If there are more than 25 VLANs configured on the switch, reboot the switch after configuring

the Management VLAN.

• If you implement a Management VLAN in a switch mesh environment, all meshed ports on

the switch will be members of the Management VLAN.

• Only one Management VLAN can be active in the switch. If one Management VLAN VID is

saved in the startup-config file and you configure a different VID in the running-config file, the

switch uses the running-config version until you either use the write-memory command or

reboot the switch.

• During a Telnet session to the switch, if you configure the Management VLAN to a VID that

excludes the port through which you are connected to the switch, you will continue to have

access only until you terminate the session by logging out or rebooting the switch.

NOTE: The Management VLAN feature does not control management access through a

direct connection to the switch's serial port.

• During a WebAgent session, if you configure the Management VLAN to a VID that excludes

the port through which you are connected to the switch, you will continue to have access only

until you close the browser session or reboot the switch.

Introducing tagged VLAN technology into networks running untagged VLANs 59