Flood Pruning Using Vlans - Avaya Cajun P882 User Manual

Chapter 1

Flood Pruning Using VLANs

1-15
VLANs provide network managers with two significant capabilities:
The ability to segment traffic in a flat switched network. This
helps prevent traffic from being forwarded to stations where
it is not needed.
The ability to ignore physical switch locations when creating
workgroups. VLANs are logical constructions and can
traverse physical switch boundaries.
The hardware on all multiservice switches support port-based
VLANs with the following characteristics:
Frames classified as Layer 1 (Port-based) when they enter the
switch
Explicitly tagged VLAN packets — these are forwarded based
on the information in the packet.
Up to 1,000 VLANs — VLANs define a set of ports in a
flooding domain. Packets that need to be flooded are sent
only to ports participating in that VLAN (Figure 1-3).
Figure 1-3. Flooding Domain
Frame Classification
Avaya P550R, P580, P880, and P882 Multiservice Switch User Guide, v5.3.1
Virtual Bridging
Function
Function
Port
Registration
Function
Policies