Verifying And Managing The Dhcp Maintain Subscribers Feature; Preserving Subscriber Binding Information - Juniper ACX1000 Configuration Manual

Related
Documentation

Verifying and Managing the DHCP Maintain Subscribers Feature

Purpose
Action
Related
Documentation

Preserving Subscriber Binding Information

Copyright © 2017, Juniper Networks, Inc.
Subscriber Binding Retention During Interface Delete Events on page 337
Understanding Dynamic Reconfiguration of Extended DHCP Local Server Clients on
page 341
Configuring Dynamic Reconfiguration of DHCP Clients to Avoid Extended Outages Due
to Server Configuration Changes on page 344
Configuring Dynamic Reconfiguration Attempts for DHCP Clients on page 345
Configuring Deletion of the Client When Dynamic Reconfiguration Fails on page 346
Requesting DHCP Local Server to Initiate Reconfiguration of Client Bindings on page 347
Clearing DHCP Bindings for Subscriber Access on page 348
Verifying and Managing the DHCP Maintain Subscribers Feature on page 339
Display information related to the DHCP maintain-subscribers feature and explicitly log
out maintained clients.
To display DHCP local server binding information for the DHCP maintain subscribers
feature:
user@host>show dhcp server binding detail
To explicitly log out a DHCP local server subscriber when the maintain subscriber
feature is enabled:
user@host>clear dhcp server binding binding-type
Verifying and Managing DHCP Local Server Configuration on page 349
When ACX series router functioning as a DHCP local server reboots, by default, all the
subscriber binding information is lost. You can configure ACX series router to preserve
the subscriber binding information to a file in /var/preserve and when the router reboots,
the DHCP local server reads the file and restores the subscriber binding information and
resumes normal packet processing for the subscriber.
The statement under the
persistent-storage
hierarchy level enables you to store subscriber binding information. The
statement is configured for each routing instance.
The statement under the
persistent-storage
level allows you to assign a name for the file. By default, the file is named as
. The
jdhcpd_client_data persistent-storage
dhcp-service] hierarchy level allows you to configure the frequency (between 1 to 48
Chapter 10: Configuring DHCP Client and DHCP Server
[edit system services dhcp-local-server]
[edit system processes dhcp-service]
statement under the
[edit system processes
persistent-storage
hierarchy
339