Graco GE-DS-242-POE Manual De Usuario

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Chapter 4: Web-Based Management 
GE-DS-242-PoE Managed Ethernet Switch User Manual 
67 
In cases where a given service VLAN only has two member ports on the switch, the 
learning can be disabled for the particular VLAN and can therefore rely on flooding as 
the forwarding mechanism between the two ports. This way, the MAC table 
requirements are reduced. 
Q-in-Q Port Setting 
The QinQ VLAN \ QinQ Port Setting screen in Figure 4-31 appears. 
Figure 4-31: Q-in-Q Port Setting interface 
 
This page includes the following fields: 
 
OBJECT 
DESCRIPTION 
Enable 
Sets the Managed Switch to QinQ mode, and allows the 
QinQ tunnel port to be configured. 
Disable 
The Managed Switch operates in its normal VLAN mode. 
QinQ 
The default is for the Managed Switch to function in Disable mode. 
QinQ TPID 
The Tag Protocol Identifier (TPID) specifies the ethertype of incoming 
packets on a tunnel access port.  
802.1Q Tag : 8100 
vMAN Tag : 88A8 
Default : 802.1Q Tag. 
Port QinQ 
Check: Sets the Port to QinQ mode. Or the port operates in its normal 
VLAN mode.  
Default: Un-check.