Cisco Cisco IOS Software Release 12.2(1)T
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Cisco IOS Release 12.2(13)T
ATM Policing by Service Category for
SVC/SoftPVC
SVC/SoftPVC
Feature History
This document describes the ATM Policing by Service Category for SVC/SoftPVC feature in Cisco IOS
Release 12.2(13)T and includes the following sections:
Release 12.2(13)T and includes the following sections:
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Feature Overview
When configured, an ATM switch at the network side of a user-to-network (UNI) interface polices the
flow of cells in the forward (into the network) direction of a virtual connection. These traffic policing
mechanisms are known as usage parameter control (UPC). With UPC, the switch determines whether
received cells comply with the negotiated traffic management values and takes one of the following
actions on violating cells:
flow of cells in the forward (into the network) direction of a virtual connection. These traffic policing
mechanisms are known as usage parameter control (UPC). With UPC, the switch determines whether
received cells comply with the negotiated traffic management values and takes one of the following
actions on violating cells:
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Pass the cell without changing the cell loss priority (CLP) bit in the cell header.
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Tag the cell with a CLP bit value of 1.
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Drop (discard) the cell.
The ATM Policing by Service Category for SVC/SoftPVC feature enables you to specify which traffic
to police, based on service category, on switched virtual circuits (SVCs) or terminating VCs on the
destination end of a soft VC.
to police, based on service category, on switched virtual circuits (SVCs) or terminating VCs on the
destination end of a soft VC.
Release
Modification
12.2(4)B
This feature was introduced on the Cisco 6400 NSP.
12.2(13)T
This command was integrated into Cisco IOS Release 12.2(13)T.