Concept Guide
Occasionally, while sending broadcast trac over multiple VLANs, state of a VLAN interface may continually switch between Master and
Backup.
• auto vlan
• default vlan-id
• name
• show cong (from INTERFACE VLAN mode)
• show vlan
• vlan tagged
• vlan untagged
auto vlan
Change the port to auto or admin vlan mode (enable or disable all auto VLANs).
Syntax
auto vlan
To remove membership from 4K VLAN, use the no auto vlan command.
Defaults none
Parameters
description Enter a text string description to identify the VLAN (80 characters maximum).
Command Modes INTERFACE
Supported Modes Standalone Mode
Usasge Information The auto vlan command adds the port as untagged to default vlan and tagged to all other 4094 VLAN.
Command History
Version Description
9.4(0.0) Supported on the FN I/O Aggregator.
8.3.17.0 Supported on the M I/O Aggregator.
clear mac-address-table dynamic
Clear the MAC address table of all MAC addresses learned dynamically.
Syntax
clear mac-address-table dynamic {interface tengigabitethernet slot/port-id}
Parameters
interface Enter the keyword interface range and one of the interfaces — slot/port, port-
channel or VLAN number. Select the range of interfaces for bulk conguration. You can
enter up to six comma separated ranges-spaces are not required between the commas.
Comma-separated ranges can include VLANs, port-channels and physical interfaces.
Slot/Port information must contain a space before and after the dash. For example,
interface range tengigabitethernet 0/1 - 5 is valid; interface range tengigabitethernet
0/1-5 is not valid.
•
For a 10-Gigabit Ethernet interface, enter the keyword TenGigabitEthernet
followed by the slot/port information.
Interfaces 593