Monitoring and Analyzing Switch Operation

Status and Counters Data

VLAN Information

The switch uses the CLI to display the following VLAN status:

Syntax: show vlan

Lists:

Maximum number of VLANs to support

Existing VLANs

Status (static or dynamic)

Primary VLAN

Syntax: show vlan < vlan-id>

For the specified VLAN, lists:

Name, VID, and status (static/dynamic)

Per-Port mode (tagged, untagged, forbid, no/ auto)

“Unknown VLAN” setting (Learn, Block, Disable)

Port status (up/down)

For example, suppose that your switch has the following VLANs:

PortsVLAN

VID

1 - 12

DEFAULT_VLAN

1

1, 2

VLAN-33

33

3, 4

VLAN-44

44

The next three figures show how you could list data on the above VLANs.

B-21