Media5 Mediatrix 4104, Справочное руководство, Страница: 81 / 466

Firmware Download Reference Manual (SIP Version)
Mediatrix 4104 59
• If the time range is set to '14:00 - 15:00' and the automatic update is enabled within
those hours, the first update will take place the following day. This means that a range
of '00:00:00 - 23:59:59' will always take place the next day.
10. Click Submit if you do not need to set other parameters.
Spanning Tree Protocol (STP)
Many network switches use the Spanning Tree Protocol (STP) to manage Ethernet ports activity. When a
firmware download occurs, the
Ethernet connector of the Mediatrix 4104 may switch off. This shutdown may
trigger these network switches to shutdown the matching Ethernet port for at least one minute. This shutdown
on the switch side can prevent firmware download.
To prevent this, the Mediatrix 4104 supports the STP. However, this management has a potential time cost. It
may appear from time to time that firmware downloads take more time. This is normal.
The following is an example where the STP management impacts the download duration.

The firmware download procedure does not use any DHCP and DNS services.

The primary image server is down (or not properly configured).

The secondary image server is up and running well.
In this case, the Mediatrix 4104 tries to contact the primary image server. As it is not available, the Mediatrix
4104 retries for two minutes. It contacts the secondary server after that period and starts the firmware
download.
Firmware Downgrade
It is possible to downgrade a Mediatrix 4104 from the current version (for instance, v5.0rx.x) to an older version
(for instance, v4.4rx.x).

To perform a firmware downgrade:
1. Create, in a common folder under the TFTP root path, the current (for instance, v5.0) and older (for
instance, v4.4) applications folders.
2. Re-update the Mediatrix 4104 with the current application.
The Mediatrix 4104 runs the current firmware version (v5.0rx.x).
3. Perform the firmware downgrade to the older application (v4.4rx.x) as described in “Firmware
Download Procedure” on page 56 .
Note:
The Periodic Update Time of Day field is deprecated. It is recommended to use the Periodic Update
Time Range field because it has precedence over this field.
Note:
When using the Mediatrix 4104, Media5 recommends to disable the Spanning Tree Protocol on the
network to which the unit is connected.
Note:
If you perform a default reset on the Mediatrix 4104, you must download the current version into the
unit before performing the firmware downgrade procedure.