Siemens S323 User Manual

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User Manual                                                                               UMN:CLI 
SURPASS hiD 6615 S223/S323 R1.5 
A50010-Y3-C150-2-7619                                                                         187 
isolation. If you want to configure Private VLAN on the hiD 6615 S223/S323 switch, refer 
to Port Isolation configuration. 
 
8.1.9.1 Port 
Isolation 
The Port Isolation feature is a method that restricts L2 switching between isolated ports in 
a VLAN. Nevertheless, flows between isolated port and non-isolated port are not re-
stricted. If you use the port protected command, packet cannot be transmitted between 
protected ports. However, to non-protected ports, communication is possible. 
To configure Port Isolation, use the following command. 
Command Mode 
Description 
port protected
 PORTS 
Enables port isolation. 
no port protected
 [PORTS
Bridge 
Disables port isolation. 
 
8.1.9.2 Shared 
VLAN 
This chapter is only for Layer 2 switch operation. The hiD 6615 S223/S323 is Layer 3 
switch, but it can be used for Layer 2 also. Because there is no routing information in 
Layer 2 switch, each VLAN cannot communicate. Especially, the uplink port should re-
ceive packets from all VLANs. Therefore, when you configure the hiD 6615 S223/S323 as 
Layer 2 switch, the uplink ports have to be included in all VLANs.   
 
Fig. 8.4 
In Case Packets Going Outside in Layer 2 environment 
 
As above configuration with untagged packet, if an untagged packet comes into port 1, it 
is added with tag 1 for PVID 1. And the uplink port 24 is also included in the default 
VLAN; it can transmit to port 24. 
However, a problem is possible to occur for coming down untagged packets to uplink 
ports. If an untagged packet comes to uplink ports from outer network, the system does 
not know which PIVD it has and where should it forward.