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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◆ If the switch fails to download the bootup configuration file based on
information passed by the DHCP server, it will not send any further DHCP
client requests.
◆ If the switch does not receive a DHCP response prior to completing the
bootup process, it will continue to send a DHCP client request once a
minute. These requests will only be terminated if the switch’s address is
manually configured, but will resume if the address mode is set back to
DHCP.
To successfully transmit a bootup configuration file to the switch, the DHCP
daemon (using a Linux based system for this example) must be configured
with the following information:
◆ Options 60, 66 and 67 statements can be added to the daemon’s
configuration file.
◆ By default, DHCP option 66/67 parameters are not carried in a DHCP
server reply. To ask for a DHCP reply with option 66/67 information, the
DHCP client request sent by this switch includes a “parameter request list”
asking for this information. Besides these items, the client request also
includes a “vendor class identifier” that allows the DHCP server to identify
the device, and select the appropriate configuration file for download. This
information is included in Option 55 and 124.
The following configuration example is provided for a Linux-based DHCP
daemon (dhcpd.conf file). In the “Vendor class” section, the server will always
send Option 66 and 67 to tell the switch to download the “test” configuration
file from server 192.168.255.101.
Table 1: Options 60, 66 and 67 Statements
Option
Statement
Keyword Parameter
60 vendor-class-identifier a string indicating the vendor class identifier
66 tftp-server-name a string indicating the tftp server name
67 bootfile-name a string indicating the bootfile name
Table 2: Options 55 and 124 Statements
Option
Statement
Keyword Parameter
55 dhcp-parameter-request-list a list of parameters, separated by a comma ', '
124 vendor-class-identifier a string indicating the vendor class identifier