Transmit Connect Speed Reporting Considerations; Session Termination For Dynamic Speed Timeout; Advisory Speed Precedence For Vlans Over Bridged Ethernet; Using Aaa Domain Maps To Configure The Transmit Connect Speed Calculation Method - Juniper JUNOSE SOFTWARE FOR E SERIES 11.3.X - BROADBAND ACCESS CONFIGURATION GUIDE 2010-10-12 Configuration Manual

Transmit Connect Speed Reporting Considerations

Using AAA Domain Maps to Configure the Transmit Connect Speed Calculation Method

Copyright © 2010, Juniper Networks, Inc.
Table 71: Transmit Connect Speeds for L2TP over Ethernet Example
(continued)
Transmit Connect
Calculation Speed Reported in
Method AVP 24
QoS 10 Mbps
Actual 10 Mbps
The following considerations affect the transmit connect speed value reported in L2TP
Transmit (TX) Speed AVP 24 when you use this feature.

Session Termination for Dynamic Speed Timeout

Under certain heavy load conditions, the router might be unable to obtain the
dynamic-layer2 value for the transmit connect speed of the subscriber's access interface.
In this situation, the LAC sends the LNS an L2TP Call-Disconnect-Notify (CDN) message
to terminate the L2TP session.
For more information about supported L2TP terminate reasons, see "AAA Terminate
Reasons" on page 277.

Advisory Speed Precedence for VLANs over Bridged Ethernet

For interface columns that consist of an L2TP session over an Ethernet VLAN subinterface
over a bridged Ethernet interface, the advisory transmit speed of the VLAN subinterface,
if configured with the vlan advisory-tx-speed command, takes precedence over the
physical port speed of the underlying layer 2 ATM 1483 interface. As a result, if the advisory
transmit speed is configured for the VLAN subinterface, L2TP reports this value as the
transmit connect speed regardless of the port speed of the ATM 1483 interface.
To configure the transmit connect speed calculation method for a tunneled L2TP session
associated with an AAA domain map:
Access Domain Map Tunnel Configuration mode.
1.
host1(config)#aaa domain-map sunnyvale.com
host1(config-domain-map)#router-name lac
host1(config-domain-map)#tunnel 5
host1(config-domain-map-tunnel)#
For more information about how to map a domain to an L2TP tunnel from Domain
Map Tunnel Configuration mode, see "Mapping a User Domain Name to an L2TP
Tunnel Overview" on page 358 .
From Domain Map Tunnel Configuration mode, configure the calculation method for
2.
the transmit connect speed of the subscriber's access interface.
Chapter 13: Configuring an L2TP LNS
Reason
L2TP reports the transmit connect speed calculated
by QoS.
L2TP reports the lesser of the dynamic layer 2 speed
(100 Mbps) or the QoS speed (10 Mbps).
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