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Layer 3 Features
Modes of Operation
The P333R has three modes of operation (in each mode, Layer 2 is always active):
•
Layer 2-only mode
•
EZ2route mode and Layer 2
•
Router mode and Layer 2.
Forwarding
The P333R forwards IP packets between IP networks. When it receives an IP packet
through one of its interfaces, it forwards the packet through one of its interfaces.
P333R supports multinetting, enabling it to forward packets between IP subnets on
the same VLAN as well as between different VLANs. Forwarding is performed
through standard means in both Router mode and EZ2route mode.
EZ2route Mode
Avaya's EZ2route technology employs the power and simplicity of the
Avaya P333R hardware to perform true Layer 3 switching functions without the
administrative overhead associated with regular routers.
In EZ2route mode, Layer 3 switching is based on automatic learning. This
eliminates the need to configure the switch as a routing entity and eliminates the
complications associated with the configuration of regular routers.
In EZ2route mode, the P333R does not perform any active routing operations, such
as running routing protocols or performing resource-intensive route calculations.
This makes the P333R transparent to other routing entities on the network.
With EZ2route mode, you can increase Level 3 bandwidth simply by adding
additional P333R modules to the stack. A P333R in EZ2route mode can be used to
boost the performance of one or more routers outside the stack, and of other P333R
modules in the same stack operating in Router mode. Multiple P333R modules in
EZ2route mode can be stacked together to increase the Layer 3 forwarding capacity
of the stack.
In EZ2route mode, the P333R learns the network dynamically, and therefore
eliminates the need for configuration. However, there are some special instances,
where minimal configuration is needed.
Avaya P333R User's Guide
Chapter 1
Overview
7
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