Juniper JUNOSE 11.2, Configuration Manual

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For information about the working of the dynamic encapsulation type lockout feature
for PPPoE sessions that contain the IWF-Session DSL Forum VSA (26-254) in PADR
packets, see “Encapsulation Type Lockout Based on DSL Forum VSAs for IWF PPPoE
Sessions” on page 523.
For illustrations of the interface stacking in dynamic PPPoE over static PPPoE
configurations, see Figure 49 on page 531, Figure 50 on page 533, Figure 51 on page 534, and
Figure 53 on page 539.
Differences from Lockout Configuration for PPPoE over Static ATM
Table 29 on page 545 lists the important differences between how encapsulation type
lockout works for dynamic PPPoE over static PPPoE configurations and how lockout
works for dynamic PPPoE over static ATM 1483 configurations.
Table 29: Differences in Lockout Operation for Dynamic PPPoE
Configurations
Dynamic PPPoE over Static ATM 1483 Dynamic PPPoE over Static PPPoE
Encapsulation type lockout is enabled by default
with a lockout time range of 1–300 seconds. Encapsulation type lockout is disabled by
default.
PPPoE clients automatically inherit their lockout
setting from the lockout parameters configured
for the underlying static ATM 1483 subinterface
with the
auto-configure command.
Currently, the dynamic PPPoE interface layer must
be configured directly above the static ATM 1483
interface layer to support inheritance of lockout
parameters. For an illustration of dynamic PPPoE
over static ATM 1483 interface stacking, see Figure
48 on page 526.
You must explicitly configure encapsulation
type lockout for PPPoE clients with the
pppoe auto-configure command.
For more information about the benefits and operation of dynamic encapsulation type
lockout, see “Encapsulation Type Lockout” on page 521. In particular, see “Guidelines for
Configuring Encapsulation Type Lockout for PPPoE sessions” on page 523 for information
about the rules that apply when you configure the lockout time. These rules are common
to both dynamic PPPoE over static PPPoE configurations and dynamic PPPoE over static
ATM 1483 configurations.
Configuration Tasks
Configuring dynamic encapsulation type lockout for PPPoE clients includes the following
tasks:
• Configuring and verifying lockout for PPPoE clients
•
Clearing the lockout condition for a specific PPPoE client
Configuring and Verifying Lockout for PPPoE Clients
To configure and verify encapsulation type lockout for a PPPoE client:
1.
Configure the underlying physical interface.
545 Copyright © 2010, Juniper Networks, Inc.
Chapter 17: Configuring Dynamic Interfaces