User`s guide

USER’S GUIDE

Metered Rack PDU

• Rebinding Time, T2 (option 59): The time that the Rack PDU must wait after an IP

address lease is assigned before it can seek to rebind that lease.

Other options. The Rack 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 Network Time Protocol

Servers (NTP) (primary and secondary) that the Rack PDU can use.

• Time Offset (option 2): The offset of the Rack 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 Rack PDU can use.

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

maximum length).

• Domain Name (option 15): The domain name that the Rack 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 APC user configuration file (.ini file) to

download. The siaddr field of the DHCP response specifies the IP address of the

server from which the Rack PDU will download the .ini file. After the download, the

Rack PDU uses the .ini file as a boot file to reconfigure its settings.

Port Speed (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).