Amer Networks SS2R48G4i V2 - Manual (Page 104)

SS2R24G4i/SS2R48G4i
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SS2R48G4I (Config-Vlan3)#switchport interface ethernet 0/0/1
SS2R48G4I (Config-Vlan3)#exit
SS2R48G4I (Config)#dot1q-tunnel enable
SS2R48G4I (Config)#interface ethernet 0/0/1
SS2R48G4I (Config-Ethernet0/0/1)#switchport dot1q-tunnel mode customer
SS2R48G4I (Config-Ethernet0/0/1)#exit
SS2R48G4I (Config)#interface ethernet 0/0/10
SS2R48G4I (Config-Ethernet0/0/10)#switchport mode trunk
SS2R48G4I (Config-Ethernet0/0/10)#switchport dot1q-tunnel mode uplink
SS2R48G4I (Config-Ethernet0/0/10)#exit
SS2R48G4I (Config)#
9.3.4 Dot1q-tunnel Troubleshooting
& This function cannot be used simultaneously with private-vlan(refer to session 9.2.2.9).
& customer port mode has to be configured on access ports, while the uplink port mode has to be
configured on trunk ports.
& It is recommened that using the uplink pord mode on 1000bps ports to reach the expected
transimission rate of uplink ports and guarantee the high-speed operation of network.
9.4 Protocol VLAN Configuration
9.4.1 Protocol VLAN Introduction
To be simple and clear, Protocol VLAN mirrors packets without tags to VLAN according to their
protocol types, instead of determining their VLAN identity according to the physical ports of the
switches they connect to. After configureing the Protocol VLAN, the switch will check the packets
received on the ports, designating a VLAN membership to them based on their protocol types and
encapsulation types. For example, after configuring the IPV4 protocol VLAN encapsulated by ehternet
II, when receiving a packet of this kind without a VLAN tag, it will be classified as a member of the VLAN
specified by IP protocol.
Protocol VLAN filter is only applied to the received packets without a VLAN tag. The packets with
VLAN tags received on the same port will not be affected and will keep their original state.
Protocol VLANs do not create new VLAN, but share with port-based VLANs. Once the packets
enters these VLANs, they will be transimitted according to the same rules as port-based VLANs use.
Classified by network layer protocols, different protocols can belongs to different VLANs. This is
very attractive for those networks hoping to organize users aiming at specific applications and services.
Beside, users can move as they will within the network while keeping their VLAN membership
unchanged. The advantage of this method is that, the physical location of users can change without
reconfigureing the VLAN they belong to. And it is also very significant for the network managers that the
VLAN can be classified by protocol type. What’s more, this method does not need additional frame tag
to identify VLANs,and thus can decrease the communication traffic of the network.