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Avaya 580 User Manual

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8-8

User Guide for the Avaya P580 and P882 Multiservice Switches, v6.1

Chapter 8

Table 8-2. Relationship Between Switch Parameters

VLAN Binding

Trunk
Mode

Description

Static

Clear

Ingress: Untagged frames are classified to the VLAN associated with
the port on which the frame is received. Tagged frames are classified to
the VLAN identified by the VLAN tag in the tag header of the frame.

Forwarding: Only forward frames to the port for the assigned VLAN.

Egress: All frames transmitted will be sent with no tagging.

Static

802.1Q

Multi-layer

Ingress: Untagged frames are classified to the VLAN associated with
the port on which the frame is received. Tagged frames are classified to
the VLAN identified by the VLAN tag in the tag header of the frame.

Forwarding: Only forward frames to the port for the assigned VLAN.

Egress: All frames transmitted out of the port will be tagged using the
IEEE 802.1Q/Multi-Layer tag header format. The tag used will be that
assigned to the port.

Bind to All

Clear

NOT RECOMMENDED

Ingress: Untagged frames are classified to the VLAN associated with
the port on which the frame is received. Tagged frames are classified to
the VLAN identified by the VLAN tag in the tag header of the frame.

Forwarding: All broadcast frames from all VLANs will be forwarded
to the port.

Egress: All frames transmitted will be sent with no tagging.

Bind to All

802.1Q

Multi-layer

Ingress: Untagged frames are classified to the VLAN associated with
the port on which the frame is received. Tagged frames are classified to
the VLAN identified by the VLAN tag in the frame’s tag header.

Note:

For 802.1q mode: if a tagged frame is received, but the VLAN

for that tagged frame does not exist on the switch, that frame
will be placed onto the port VLAN assigned to the port. This
may cause unicast and broadcast VLAN traffic from other
VLANs to be seen on the port VLAN. To avoid this behavior,
you can set the port VLAN into the “discard” VLAN which
will drop all untagged frames and tagged frames with unknown
VLAN IDs. For Multi-layer: if a tagged frame is received, but
the VLAN for that tagged frame does not exists on the switch,
that frame will be dropped. Forwarding: All broadcast

frames from all VLANs will be forwarded to the port.

Egress: All frames transmitted out of the port to be tagged using the
IEEE 802.1Q/Multi-Layer tag header format. The tagged used will be
that of the VLAN in which the frame was received.

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