Assigning Vlans To A Port And Associated Issues - Avaya Cajun P882 User Manual

Chapter 5
VLAN
Binding
Bind to Received
Bind to Received

Assigning VLANs to a Port and Associated Issues

5-8
Table 5-2. Relationship Between Switch Parameters
Trunk Description
Mode
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
learned on the port will be forwarded.
Egress: All frames transmitted will be sent with no
tagging.
802.1Q Ingress: Untagged frames are classified to the VLAN
associated with the port on which the frame is
Multi-
received. Tagged frames are classified to the VLAN
layer
identified by the VLAN tag in the frame's tag header.
Note:
Forwarding: All broadcast frames from all VLANs
learned on the port will be forwarded.
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.
There are two ways to assign VLANs to ports on the Avaya
Multiservice Switch. You configure the Port(s) to the VLAN desired
for the individual port(s), or entire module. Assigning the VLAN this
way enables the port(s) to receive information for the assigned
Avaya P550R, P580, P880, and P882 Multiservice Switch User Guide, Version v5.3.1
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 and 3Com mode: if a tagged
frame is received, but the VLAN for that tagged
frame does not exists on the switch, that frame
will be dropped.
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