3com S7906E 설치 설명서

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1-14 
 
 
Do not configure both the dsap-id and ssap-id arguments in the protocol-vlan command as 0xe0 
or 0xff when configuring the user-defined template for llc encapsulation. Otherwise, the 
encapsulation format of the matching packets will be the same as that of the ipx llc or ipx raw 
packets respectively. 
When you use the mode keyword to configure a user-defined protocol template, do not set etype-id 
in ethernetii etype etype-id to 0x0800, 0x8137,  0x809b, or 0x86dd. Otherwise, the encapsulation 
format of the matching packets will be the same as that of the IPv4, IPX, AppleTalk, and IPv6 
packets respectively. 
A protocol-based VLAN on a hybrid port can process only untagged inbound packets, whereas the 
voice VLAN in automatic mode on a hybrid port can process only tagged voice traffic. Therefore, do 
not configure a VLAN as both a protocol-based VLAN and a voice VLAN. For more information, 
.  
After you configure a command on a Layer 2 aggregate interface, the system starts applying the 
configuration to the aggregate interface and its aggregation member ports. If the system fails to do 
that on the aggregate interface, it stops applying the configuration to the aggregation member ports. 
If it fails to do that on an aggregation member port, it simply skips the port and moves to the next 
port.  
 
IP Subnet-Based VLAN Configuration 
Introduction 
In this approach, packets are assigned to VLANs based on their source IP addresses and subnet masks. 
A port configured with IP subnet-based VLANs assigns a received untagged packet to a VLAN based on 
the source address of the packet.  
This feature is used to assign packets from the specified network segment or IP address to a specific 
VLAN.  
Configuring an IP Subnet-Based VLAN 
 
 
This feature is only applicable on hybrid ports. 
 
Follow these steps to configure an IP subnet-based VLAN: 
To do… 
Use the command… 
Remarks 
Enter system view 
system-view 
— 
Enter VLAN view 
vlan vlan-id 
—