Avaya C360 Manager, Installation And Configuration Manual

Page: 122 / 248

Avaya C360 Layer 2 Features
122 Installation and Configuration Guide Avaya C360 Multilayer Stackable Switches, version 4.5
●
If Tagging Mode is set to "IEEE-802.1Q", all frames keep their tags when they leave the
device. Frames that enter the switch without a VLAN tag will be tagged with the VLAN ID
of the port they entered through.
Multi VLAN Binding
Multi VLAN binding (Multiple VLANs per port) allows access to shared resources by stations
that belong to different VLANs through the same port. This is useful in applications such as
multi-tenant networks, where each user has his a VLAN for privacy, but the whole building has a
shared high-speed connection to the ISP.
In order to accomplish this, C360 allows you to set multiple VLANs per port. The three available
Port Multi-VLAN binding modes are:
●
Bind to All - the port is programmed to support the entire 3K VLANs range. Traffic from any
VLAN is forwarded through a port defined as "Bind to All". This is intended mainly for easy
backbone link configuration
●
Bind to Configured - the port supports all the VLANs configured in the switch/stack. These
may be either Port VLAN IDs (PVID) or VLANs that were manually added to the switch.
●
Statically Bound - the port supports VLANs manually configured on it.
Tip:
Tip:
VLAN Binding - The forwarding mechanism of the C360 switches is based on
frame's VLAN and MAC address. If a frame is destined to a known MAC address
but arrives on a different VLAN than the VLAN on which this MAC address was
learnt, this frame will be flooded as unknown to all ports that are bound to its
VLAN. Hence, VLAN binding should be executed with care, especially on ports
connected to workstations or servers.
Figure 23 illustrates these binding modes in C360.