SignaMax SC30010, Справочное руководство CLI

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Chapter 1
| Initial Switch Configuration
Downloading Configuration Files / Other Parameters from a DHCP Server
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DHCP client Identifier (Option 60) is used by DHCP clients to specify their
unique identifier. The client identifier is optional and can be specified while
configuring DHCP on the primary network interface. DHCP Option 60 is
disabled by default.
The general framework for this DHCP option is set out in RFC 2132 (Option
60). This information is used to convey configuration settings or other
identification information about a client, but the specific string to use should be
supplied by your service provider or network administrator. Options 60
(vendor-class-identifier), 66 (tftp-server-name) and 67 (bootfile-name)
statements can be added to the server daemon’s configuration file as
described in the following section.
If the DHCP server has an index entry for a switch requesting service, it
should reply with the TFTP server name and boot file name. Note that the
vendor class identifier can be formatted in either text or hexadecimal, but the
format used by both the client and server must be the same.
Console(config)#interface vlan 2
Console(config-if)#ip dhcp client class-id hex 0000e8666572
Console(config-if)#
Downloading Configuration Files / Other Parameters from a DHCP Server
Information passed on to the switch from a DHCP server may also include a
configuration file to be downloaded and the TFTP servers where that file can
be accessed, as well as other parameters. If the Factory Default Configuration
file is used to provision the switch at startup, in addition to requesting IP
configuration settings from the DHCP server, it will also ask for the name of a
bootup configuration file and TFTP servers where that file is stored.
If the switch receives information that allows it to download the remote bootup
file, it will save this file to a local buffer, and then restart the provision process.
Note the following DHCP client behavior:
◆ To enable dynamic provisioning via a DHCP server, this feature must be
enabled using the
ip dhcp dynamic-provision command.
◆
The bootup configuration file received from a TFTP server is stored on the
switch with the original file name. If this file name already exists in the
switch, the file is overwritten.
◆
If the name of the bootup configuration file is the same as the Factory
Default Configuration file, the download procedure will be terminated, and
the switch will not send any further DHCP client requests.