GE T1000 Technical Manual page 187

Chapter 7 – Configuration
REASON SWITCHES-TM-EN-3
the switch untagged and tagged frames leave
the switch tagged) or to Tag all frames.
Hybrid: indicates that port will operate as a hybrid port.

This is the most flexible port mode, as Hybrid ports allow
configuring every process on the VLAN function. Main
characteristics of these ports are:

VLAN Identifier Ingress process: untagged
frames are forwarded to the Port VLAN identifier
VLAN, and tagged frames are forwarded to the
VLAN that is embedded at the frame;

Filtering ingress process: it is possible to define
if only tagged, only untagged or if both tagged
and untagged frames would be acceptable.
Besides, frames that do not belong to the
Allowed Access VLANs field or belong to the
Forbidden VLANs field are discarded. Ingress
Acceptance filtering does not depend on the
egress Tagging process;

Egress process: egress behaviour will depend on
the Egress Tagging field configuration. A Hybrid
port can be set to Untag only frames with Port
VLAN identifier (that is, untagged frames leave
the switch untagged and tagged frames leave
the switch tagged) or to Tag all frames. Egress
Tagging filtering does not affect Ingress
Acceptance filter.

VLAN Identifier Ingress process: untagged
frames are forwarded to the Port VLAN identifier
VLAN, and tagged frames are forwarded to the
VLAN that is embedded at the frame;

Filtering ingress process: it is possible to define
if only tagged, only untagged or if both tagged
and untagged frames would be acceptable.
Besides, frames that do not belong to the
Allowed Access VLANs field or belong to the
Forbidden VLANs field are discarded. Ingress
Acceptance filtering does not depend on the
egress Tagging process;

Egress process: egress behaviour will depend on
the Egress Tagging field configuration. A Hybrid
port can be set to Untag only frames with Port
VLAN identifier (that is, untagged frames leave
the switch untagged and tagged frames leave
the switch tagged) or to Tag all frames. Egress
Tagging filtering does not affect Ingress
Acceptance filter.
GE Reason Switches
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