Version 7.2
815
Mediant 500 MSBR
User's Manual
51. Automatic Provisioning
51.2.7 Querying Provisioning Server for Updated Files
Each time the Automatic Update feature is triggered, for each file and its configured URL
the device does the following:
1.
If you have configured the device to authenticate itself to the HTTP/S server for secure
access, the device sends the access authentication username and password to the
HTTP/S server (for more information, see Access Authentication with HTTP Server on
page 814). If authentication succeeds, Step 2 occurs.
2.
The device establishes an HTTP/S connection with the URL host (provisioning
server). If the connection is HTTPS, the device verifies the certificate of the
provisioning server, and presents its own certificate if requested by the server. To
configure the certificate, use the CLI command, use-zero-conf-certificate. If set to yes,
the device uses the installed "Zero Conf" certificate (pre-provisioned during
production); otherwise, it uses the "regular" certificates (used for Web and SIP
applications).
3.
The device queries the provisioning server for the requested file by sending an HTTP
Get request. This request contains the HTTP User-Agent Header, which identifies the
device to the provisioning server. The header is used for both the Automatic Update
and Zero Configuration features. By default, the header includes the device's model
name, MAC address, and currently installed software and configuration versions.
Based on its own dynamic applications for logic decision making, the provisioning
server uses this information to check if it has relevant files available for the device and
determines which files must be downloaded (working in conjunction with the HTTP If-
Modified-Since header, described further on in this section).
You can configure the information sent in the User-Agent header, using the
AupdHttpUserAgent parameter or CLI command, configure system > http-user-agent.
The information can include any user-defined string or the following supported string
variable tags (case-sensitive):
•
<NAME>:
product name, according to the installed License Key
•
<MAC>:
device's MAC address
•
<VER>:
software version currently installed on the device, e.g., "7.00.200.001"
•
<CONF>:
configuration version, as configured by the ini file parameter,
INIFileVersion or CLI command, configuration-version
The device automatically populates these tag variables with actual values in the sent
header. By default, the device sends the following in the User-Agent header:
User-Agent: Mozilla/4.0 (compatible; AudioCodes;
<NAME>;<VER>;<MAC>;<CONF>)
For example, if you set AupdHttpUserAgent = MyWorld-<NAME>;<VER>(<MAC>), the
device sends the following User-Agent header:
User-Agent: MyWorld-Mediant;7.00.200.001(00908F1DD0D3)
Note:
If you configure the AupdHttpUserAgent parameter with the <CONF> variable
tag, you must reset the device with a save-to-flash for your settings to take effect.
4.
If the provisioning server has relevant files available for the device, the following
occurs, depending on file type and configuration:
Summary of Contents for Mediant 500 MSBR
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Page 115: ...Part III General System Settings ...
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Page 137: ...Part IV General VoIP Configuration ...
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Page 837: ...Part X Status Performance Monitoring and Reporting ...
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Page 927: ...Part XI Diagnostics ...
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