H3C S6850 Series, Руководство по настройке

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3. (Optional.) Set a name for the VLAN.
name text
By default, the name of a VLAN is VLAN vlan-id. The vlan-id argument specifies the VLAN ID in
a four-digit format. If the VLAN ID has fewer than four digits, leading zeros are added. For
example, the name of VLAN 100 is
VLAN 0100 .
4. (Optional.) Configure the description for the VLAN.
description text
By default, the description of a VLAN is VLAN vlan-id. The vlan-id argument specifies the VLAN
ID in a four-digit format. If the VLAN ID has fewer than four digits, leading zeros are added. For
example, the default description of VLAN 100 is
VLAN 0100 .
Enabling packet dropping in the VLAN
About packet dropping in the VLAN
This feature enables the device to drop packets (including protocol packets) forwarded by the
software in a VLAN. To drop all packets that are received and transmitted in the VLAN, you must
configure a QoS policy. For more information about configuring QoS policies, see QoS configuration
in
ACL and QoS Configuration Guide .
Procedure
1. Enter system view.
system-view
2. Enter VLAN view.
vlan vlan-id
3. Enable packet dropping in the VLAN.
block outbound
By default, packet dropping is disabled in a VLAN.
Configuring port-based VLANs
Restrictions and guidelines for port-based VLANs
•
When you use the
undo vlan
command to delete the PVID of a port, either of the following
events occurs depending on the port link type:
{
For an access port, the PVID of the port changes to VLAN 1.
{
For a hybrid or trunk port, the PVID setting of the port does not change.
You can use a nonexistent VLAN as the PVID for a hybrid or trunk port, but not for an access
port.
•
As a best practice, set the same PVID for a local port and its peer.
•
To prevent a port from dropping untagged packets or PVID-tagged packets, assign the port to
its PVID.
Assigning an access port to a VLAN
About assigning an access port to a VLAN
You can assign an access port to a VLAN in VLAN view or interface view.