Huawei AR150/200 Series Configuration Manual page 110

Huawei AR150&200 Series Enterprise Routers
Configuration Guide - Network Management
Method
DHCP
Auto-delivery by ACS
Local configuration on the
CPE
The ACS's URL is in the HTTP or HTTPS format. The HTTPS format can ensure the
communication security and data integrity between the ACS and CPE.
Auto connection between ACS and CPE
A session can be initiated by a CPE or an ACS.
Both the CPE and the ACS are allowed to initiate connections. This avoids the need for a
persistent connection to be maintained between each CPE and an ACS. The following
configuration procedure shows how a CPE initiates a connection with the ACS.
To set up a connection, the CPE sends Inform messages to the ACS. You can configure the CPE
to automatically send Inform messages to the ACS by setting Inform message parameters. The
CPE can use two methods to send Inform messages.
Method
Sending Inform
messages
periodically
Issue 02 (2012-03-30)
NOTE
In the following configuration procedure, only the local configuration on the CPE is mentioned.
Advantage
This avoids the need
for a persistent
connection to be
maintained between
each CPE and an
ACS.
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Description
The URL is specified by
Option 43 on a DHCP server.
When the CPE accesses the
DHCP server, the DHCP
server sends the URL to the
CPE.
When the URL of the ACS
changes, the ACS
automatically delivers the
updated URL to the CPE.
The URL of the ACS is
configured on the CPE by
using commands.
Disadvantage
If the interval is
short, the CPE
frequently sends
Inform messages,
which occupy many
network resources.
4 CWMP Configuration
Applicable Scenario
The IP addresses of the ACS
and CPE are assigned by a
DHCP server.
A connection has been set up
between the ACS and the
CPE.
The CPE executes
commands to set up a
connection with the ACS.
Applicable
Scenario
The connections
between the CPE and
the ACS need to be
maintained
periodically, and
routine maintenance
needs to be
performed on the
ACS and CPE.
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