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Ethertype for Custom S-Ports: Allows you to specify the Ethertype/TPID used for Custom S-Ports. The setting is only
used for Ports whose Port Type is set to S-Custom-Port. For a list of Ethertypes please visit: http://standards.ieee.org/
develop/regauth/ethertype/eth.txt
Port VLAN Configuration
Port: Displays the Port Number that corresponds to the VLAN Configuration Row.
Mode Column Menu
Allows you to set the Port Mode which determines the behavior of the Port.
Access: Access Ports are typically used to connect to Client Devices (i.e. PC, Laptop, IP Phone, etc…).
Can only be a Member of one VLAN, default is VLAN 1.
Will Accept Untagged Packets and C-Tagged Packets,
Discards all Packets that are not Tagged to the Access VLAN.
On Egress all Packets are Transmitted Untagged.
Trunk: Trunk Ports can carry traffic from multiple VLANs simultaneously and are tipcally used to connect to other
Switches or VLAN capable Routers.
By default a Trunk Port is Member of all existing VLANs. This can be limited using the Allowed VLANs option.
By default all Packets except Packets classified as the Port VLAN are Tagged on Egress. Packets classified as the Port
VLAN will not be Tagged on Egress.
Egress Tagging can be changed to Tag all Packets in this configuration only Tagged Packets are Accepted on Ingress.
Hybrid: Hybrid Ports are similar to Trunk Ports in many ways but Add Additional Port configuration features. In Addition
to the characteristics described for Trunk Ports Hybrid Ports support these additional functions:
Can be configured to be VLAN Tag Unaware or, C-Tag Aware, S-Tag Aware, or S-custom-Tag Aware
Ingress filtering can be configured.
Ingress Acceptance of Packets and configuration of Egress Tagging can be configured independently.
Port VLAN
Allows you to set the Ports default VLAN ID (PVID). Allowed VLANs Range from 1-4095 with a default of VLAN 1. Ingress
Packets are classified as the Port VLAN if the Port is configured as VLAN Unaware, the Frame is Untagged or VLAN
Awareness is Enabled on the Port but the Frame is Priority Tagged (VLAN ID = 0). Egress Packets classified as the Port
VLAN will not be Tagged if Egress Tagging is set to UnTag Port VLAN. Port VLAN is the Access VLAN for Ports in Access
Mode and Native VLAN for Ports in Trunk or Hybrid Mode.
Port Type
Ports in Hybrid Mode allow you to change the Port Type which affects whether a Packets VLAN Tag is used to
Classify the Frame on Ingress to a particular VLAN. On Egress the Port Type determines the TPID of the Tag if a
Tagging is required.
X
Unaware: On Ingress all Packets VLAN Tagged or not are set as the Port VLAN and Tags are not removed on Egress.
X
C-Port: On Ingress Packets with a VLAN Tag with TPID = 0x8100 are set to the VLAN ID embedded in the Tag. If a
Frame is Untagged or Priority Tagged the Frame will be Tagged to the Port VLAN. If Packets are Tagged on Egress they
will be Tagged with a C-Tag.
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