Asus GigaX1024iPlus - Manual (Page 37)

28
Chapter 4 - Configuration Management
ASUS GigaX 1024i+
port. It communicates with all interfaces within a PVLAN. Some restrictions
in a promiscuous port are as follows:
• Promiscuous port must be an untagged port.
• Trunked port cannot be a promiscuous port.
• Promiscuous port cannot be in Port-Based VLAN Mode.
b) Isolated Port: The non-promiscuous port in a PVLAN. It has complete
Layer 2 separation from the other ports within the same PVLAN, but not
from the promiscuous port. PVLANs block all traffic to isolated ports except
traffic from promiscuous port. Traffic from isolated port is forwarded only
to promiscuous port. Traffic control does not work for isolated port. Some
restrictions in an isolated port are as follows:
• Isolated port only process untagged packets. If isolated port
receives tagged packets, they will be dropped.
• Isolated port only can belong to one VLAN, and the VLAN is a
Private VLAN.
• Isolated port cannot run IGMP snooping.
• Priority Override: When priority override is checked, the priority override
based on the VLAN ID can only occur on the members of this VLAN.
When this occurs, the priority field of any packets with this VLAN ID will be
overridden with the priority value. The VLAN priority override has higher
priority than the port’s default priority, and IP priority.
•
Priority: The priority value is used to override the priority on any frames
associated with this VLAN ID, if priority override is checked.
If you want the VLAN members’ forwarding decision to follow the 802.1Q
Tagged VLAN, you must go to the VLAN Mode page and select “802.1Q
Tagged VLAN” mode as the VLAN Mode of these port members.
Click <
OK> to send the settings to the switch via the HTTP server. Click
< Reload> to refresh the settings. To permanently save the configuration,
please go to the Save Configuration page, then click <Save>.
4.3.9.3 Port-Based VLAN
Port-Based VLAN is VLAN where the packet forwarding decision is based
on the destination MAC address and its associated port. It is the simplest
and most common form of VLAN. In a Port-Based VLAN, the system
administrator assigns the switch’s ports to a specific VLAN group. You can
set up to 28 Port-Based VLAN groups and show VLAN group in this page.