Chapter 5 Avaya P460 Layer 3 Features
Avaya P460 Configuration Guide 63
Policy Configuration
Policy Configuration Overview
The P460 supports QoS (Quality of Service) by using multiple priority levels and
IEEE 802.1p priority tagging. This QoS ensures that data and voice receive the
necessary levels of service.
The Avaya P460 can enforce QoS policy on routed packets and change their 802.1p
priority, according to the following criteria:
• The packet protocol
• Matching the packet's source or destination IP address to the configured
priority policy.
• Whether the packet source or destination TCP/UDP port number falls within a
pre-defined range.
In addition, the 802.1p priority of a packet can be modified according to the DSCP
value in the IP header. This value is based on the DSCP-802.1p mapping configured
by the user.
The P460 supports Access Control policy. Access Control rules define how the P460
handles routed packets. There are three possible ways to handle such packets:
• Forward the packet (Permit operation)
• Discard the packet (Deny operation)
• Discard the packet and notify the management station (Deny and Notify)
The Avaya P460 can enforce Access Control policy on each routed packet, according
to the following criteria:
• Matching the packet's source or destination IP address to the configured Access
Control policy.
• Determine if the packet protocol and source or destination TCP/UDP port
number falls within a pre-defined range.
• Using the ACK bit of the TCP header.
The P460 uses policy lists containing both Access Control rules and QoS rules. The
policy lists are ordered by rule indexing.
You can configure the Avaya P460 access control rules with the Command Line
Interface and the Avaya EZ2Rule central policy management application under
Avaya™ MSNM.