Configuring The Transmit Connect Speed Calculation Method; Transmit Connect Speed Calculation Methods - Juniper JUNOSE SOFTWARE 11.2.X - BROADBAND ACCESS CONFIGURATION GUIDE 7-20-2010 Configuration Manual

Configuring the Transmit Connect Speed Calculation Method

Transmit Connect Speed Calculation Methods

Copyright © 2010, Juniper Networks, Inc.
You can configure the method that the router uses to calculate the transmit connect
speed of the subscriber's access interface for a tunneled L2TP session. L2TP reports the
transmit connect speed in L2TP Transmit (TX) Speed AVP 24. During the establishment
of an L2TP tunnel session, the LAC sends AVP 24 to the LNS to convey the transmit speed
of the subscriber's access interface.
You can configure the calculation method for the transmit connect speed reported in
L2TP Transmit (TX) Speed AVP 24 in any of the following ways. The first three
methods—AAA domain maps, AAA tunnel groups, and RADIUS—are mutually exclusive.
AAA domain maps—Use the tx-connect-speed-method command from Domain Map
Tunnel Configuration mode. For instructions, see "Using AAA Domain Maps to Configure
the Transmit Connect Speed Calculation Method" on page 395.
AAA tunnel groups—Use the tx-connect-speed-method command from Tunnel Group
Tunnel Configuration mode. For instructions, see "Using AAA Tunnel Groups to Configure
the Transmit Connect Speed Calculation Method" on page 395.
AAA default tunnel parameters—Use the aaa tunnel tx-connect-speed-method
command from Global Configuration mode. The router uses the calculation method
specified with this command if the tunnel attributes returned from an AAA domain
map, an AAA tunnel group, or a RADIUS authentication server do not include the
transmit connect speed calculation method. For instructions, see "Using AAA Default
Tunnel Parameters to Configure the Transmit Connect Speed Calculation Method" on
page 396.
RADIUS Include the Tunnel-Tx-Speed-Method RADIUS attribute (Juniper Networks
VSA 26-94) in RADIUS Access-Accept messages. For instructions, see "Using AAA
Default Tunnel Parameters to Configure the Transmit Connect Speed Calculation
Method" on page 396.
In previous releases, the router calculated the transmit speed of the subscriber's access
interface based only on statically configured settings for the underlying layer 2 access
interface. With this feature, you can obtain a more accurate representation of the transmit
connect speed by choosing a calculation method that reflects changes to the layer 2
interface due to statically configured settings, dynamically configured settings, or QoS
settings.
You can choose one of the following methods for calculating the transmit connect speed
that is reported in L2TP Transmit (TX) Speed AVP 24:
Static layer 2
Dynamic layer 2
QoS
Actual (lesser of dynamic layer 2 or QoS)
Chapter 13: Configuring an L2TP LNS
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