APC PDPB150G6F User's Guide download pdf (Page 86)

User Guide InfraStruxure 150kVA Power Distribution Unit 78

Other options. The PDU also uses these options within a valid DHCP response. All of these options

except the last are described in RFC2132.

• Network Time Protocol Servers (option 42): Up to two NTP servers (primary and secondary)

that the PDU can use.

• Time Offset (option 2): The offset of the PDU's subnet, in seconds, from Coordinated Universal

Time (UTC).

• Domain Name Server (option 6): Up to two Domain Name System (DNS) servers (primary and

secondary) that the PDU can use.

• Host Name (option 12): The host name that the PDU will use (32-character maximum length).

• Domain Name (option 15): The domain name that the PDU will use (64-character maximum

length).

• Boot File Name (from the file field of the DHCP response, described in RFC2131): The fully

qualified directory-path to an user configuration file (.ini file) to download. The siaddr field of

the DHCP response specifies the IP address of the server from which the PDU will download the

.ini file. After the download, the PDU uses the .ini file as a boot file to reconfigure its settings.

Port Speed

Path: Administration > Network > Port Speed

The Port Speed setting defines the communication speed of the TCP/IP port.

• For Auto-negotiation (the default), Ethernet devices negotiate to transmit at the highest possible

speed, but if the supported speeds of two devices are unmatched, the slower speed is used.

• Alternatively, you can choose 10 Mbps or 100 Mbps, each with the option of half-duplex

(communication in only one direction at a time) or full-duplex (communication in both directions

on the same channel simultaneously).

DNS

Path: Administration > Network > DNS > options

Use the options under DNS on the left navigation menu to configure and test the Domain Name System

(DNS):

• Select servers to specify the IP addresses of the primary and optional secondary DNS server. For

the PDU to send e-mail, at least the IP

address of the primary DNS server must be defined.

– The PDU waits up to 15 seconds for a response from the primary DNS server or the secondary

DNS server (if a secondary DNS server is specified). If the PDU does not receive a response

within that time, e-mail cannot be sent. Therefore, use DNS servers on the same segment as

the PDU or on a nearby segment (but not across a wide-area network [WAN]).

– After you define the IP addresses of the DNS servers, verify that DNS is working correctly by

entering the DNS name of a computer on your network to look up the IP address for that

computer.

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APC PDPB150G6F User's Guide Page 86