Retrieval Of Dsl Line Rate Information From Access Nodes Overview - Juniper JUNOSE 11.1.X - BROADBAND ACCESS CONFIGURATION GUIDE 6-4-2010 Configuration Manual

JUNOSe 11.1.x Broadband Access Configuration Guide

Retrieval of DSL Line Rate Information from Access Nodes Overview

You can retrieve updated DSL line rate information from the Access Node Control
Protocol (ANCP) and report this information to the SRC software with corresponding
COPS messages. ANCP is also known as Layer 2 Control (L2C). To enable the router
that functions as the SRC client to obtain updated line rate parameters from ANCP
and transmit them to the COPS server, use the sscc update-policy-request enable
command in Global Configuration mode. You can configure this setting on a
per-virtual-router basis.
In networks with digital subscriber line access multiplexers (DSLAMs), after a
connection is established between an subscriber and a routing gateway, the access
node or DSLAM obtains the line rate information of the subscriber using a
synchronization process. The line rate parameters are transferred in the COPS
interface request by using the ANCP topology discovery message to the router that
functions as the network access server (NAS). Typically, a COPS interface request is
sent from the access node to the SRC client whenever an interface becomes
operational.
You can configure the SRC client to obtain the line rate details from the access node
whenever any change in the values of the parameters occurs. The capability to receive
line rate data, when it changes on the access node, is disabled by default on the SRC
client.
The access node passes the DSL line rate parameters, whenever they change, to the
SRC client. The SRC client appends updated parameters to the COPS messages that
it sends to the COPS server or SRC server. A COPS server processes the following
topology parameters that it receives from the SRC client in the updated COPS
messages:
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Retrieval of DSL Line Rate Information from Access Nodes Overview
host1(config)#sscc update-policy-request enable
Use the no version to restore the default behavior, which disables updated line
rate parameters to be sent to the COPS server.
See sscc update-policy-request enable
junoseIpInterfaceMode
junoseIpInterfaceUpstreamRate
junoseIpInterfaceDownstreamRate
junoseIpInterfaceMinimumDataRateUpstream
junoseIpInterfaceMinimumDataRateDownstream
junoseIpInterfaceAttainableDataRateUpstream
junoseIpInterfaceAttainableDataRateDownstream
junoseIpInterfaceMaximumDataRateUpstream
junoseIpInterfaceMaximumDataRateDownstream
junoseIpInterfaceMinimumLowPowerDataRateUpstream
junoseIpInterfaceMinimumLowPowerDataRateDownstream