AudioCodes Media Pack MP-11x, Руководство пользователя

Страница: 391 / 650

Version 6.6 391 MP-11x & MP-124
User's Manual 33. Automatic Update
Note: By default, the duration between BootP/DHCP requests sent by the device is
one second (configured by the BootPDelay ini file parameter). By default, the number
of requests is three (configured by the BootPRetries ini file parameter).
33.1.2 VLAN ID Discovery using LLDP
You can enable the device, through the EnableLLDP ini file parameter, to use the Link
Layer Discovery Protocol (LLDP) discovery protocol to obtain over the Layer-2 data link
layer, a VLAN ID for its OAMP interface (per IEEE 802.1, IEEE 802.3 and TR-41). The
device supports LLDP attributes referred to as TLVs (type, length, and value descriptions),
which are sent and received in LLDP messages. The device is defined as a Media
Endpoint Device (LLDP-MED, Class II), which is an extension of LLDP. The device
supports all TLV's per specification:

IEEE 802.1 TLV's: Chassis ID; Port ID; Time To Live; End Of LLDPDU.

Basic management TLV's: Port Description; System Name; System Description;
System Capabilities.

IEEE 802.3 Organizationally Specific TLV's: MAC/PHY Configuration/Status (indicates
the auto-negotiation capability and the duplex/speed status of IEEE 802.3
MAC/PHYs); Maximum Frame Size (indicates the maximum supported IEEE 802.3
frame size).

LLDP-MED TLVs: LLDP-MED Capabilities; Network Policy.
Upon startup (reset or powered up), the device sends an LLDP broadcast message
containing its identity to request a VLAN ID from a server in the network. If it receives an
LLDP reply with a VLAN ID from a server within 30 seconds, the device overwrites the
current VLAN ID of its OAMP interface (in the Interface table) with this new VLAN ID. If no
LLDP reply is received within 30 seconds, the device continues with its normal startup
process.
33.1.3 Local Configuration Server with BootP/TFTP
Local configuration server with BootP/TFTP provides an easy and efficient method for
automatic provisioning, where configuration occurs at a staging warehouse, as follows:
1. Install AudioCodes AcBootP/TFTP utility program on a computer located in a staging
warehouse.
2. Prepare a standard configuration ini file and place it in the TFTP directory.
3. Enter the MAC address of each device in the AcBootP utility.
4. For each device added in the BootP utility, select the cmp and ini file in the 'BootP File'
field.
5. Connect each device to the network and then power up the device.
6. The BootP reply contains the cmp and ini file names entered in the 'BootP File' field.
Each device retrieves these files using BootP and stores them in its flash memory. If
Auxiliary files are required (e.g., call progress tones), they may also be specified in the
ini file and downloaded from the same TFTP server.
7. When the devices' LEDs turn green indicating that the files were successfully loaded,
disconnect the devices and ship to the customer.