Avaya 580 사용자 설명서

Document No. 10-300077, Issue 2

8-9

Configuring Ports

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 VLAN and causes all untagged 
frames arriving on this port to be assigned to the specified VLAN. The 
port(s) will still assign incoming tagged packets to the VLAN indicated by 
the tag.

In the current release of software, a non-trunk port only supports a single 
VLAN per port. Multiple VLANs per port is NOT recommended and can 
have adverse effects on network performance.

Bind to Received

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.                                                                      

Bind to Received

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.

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. 

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.