TP-LINK tl-sl5428e User Manual

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the description for the VLAN. Meanwhile, specify its member 
ports.  
Create MAC VLAN. 
Required.  On  the  VLAN→MAC VLAN page, create the MAC 
VLAN. For the device in a MAC VLAN, it’s required to set its 
connected port of switch to be a member of this VLAN so as to 
ensure the normal communication.   
4  Select your desired 
ports for MAC VLAN 
feature.  
Required. On the VLAN→MAC VLAN→Port Enable page, 
select and enable the desired ports for MAC VLAN feature. 
6.3  Protocol VLAN 
Protocol VLAN is another way to classify VLANs basing on network protocol. Protocol VLANs can 
be sorted by IP, IPX, DECnet, AppleTalk, Banyan and so on. Through the Protocol VLANs, the 
broadcast domain can span over multiple switches and the Host can change its physical position 
in the network with its VLAN member role always effective. By creating Protocol VLANs, the 
network administrator can manage the network clients basing on their actual applications and 
services effectively.   
This switch can classify VLANs basing on the common protocol types listed in the following table. 
Please create the Protocol VLAN to your actual need.   
Protocol Type 
Type value 
ARP 0x0806 
IP 0x0800 
MPLS 0x8847/0x8848 
IPX 0x8137 
IS-IS 0x8000 
LACP 0x8809 
802.1X 0x888E 
Table  6-2 
Protocol types in common use 
The packet in Protocol VLAN is processed in the following way: 
1.  When receiving an untagged packet, the switch matches the packet with the current Protocol 
VLAN. If the packet is matched, the switch will add a corresponding Protocol VLAN tag to it. If 
no Protocol VLAN is matched, the switch will add a tag to the packet according to the PVID of 
the received port. Thus, the packet is assigned automatically to the corresponding VLAN for 
transmission.  
2.  When receiving tagged packet, the switch will process it basing on the 802.1Q VLAN. If the 
received port is the member of the VLAN to which the tagged packet belongs, the packet will 
be forwarded normally. Otherwise, the packet will be discarded. 
3.  If the Protocol VLAN is created, please set its enabled port to be the member of 
corresponding 802.1Q VLAN so as to ensure the packets forwarded normally.