METRObility Optical Systems R821-1S, Инструкция по установке и эксплуатации

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Management
Software Settings
Several functions and settings on the Radiance services line card can be
modified only through software commands. This section describes the
card’s management features including IP addressing management.
IP Addressing
Management
You can configure the R821 to obtain its IP addressing information (IP
address, network mask, and default gateway) through any of the
following means:
•
DHCP assignment
•
Manual configuration
•
Default value
DHCP Assignment
By default, the R821 has DHCP enabled for obtaining its IP addressing
information. When DHCP is enabled, the R821 enters a discovery mode
to locate a DHCP server. The card makes up to three
3
attempts to
resolve its IP addressing information. If any of the attempts is successful,
the card will use the information assigned by the DHCP server. The card
will also save the DHCP server’s IP address along with the address
lease time. Once the IP addressing information is acquired, the R821
preserves it in memory and renews it continuously. However, the
addressing information is not preserved across power cycles. If the card
is reset or loses power, it will enter the discovery mode again and
attempt to obtain new IP addressing information.
When DHCP is disabled, the R821 uses its last known IP addressing
information (i.e., the address that was used to issue the command to
disable DHCP). After the R821 successfully acquires its addressing infor-
mation, through whatever means, Metrobility recommends disabling
DHCP to ensure that the card always uses this information. IP
addressing information is retained across power cycles when DHCP is
disabled.
3.The max number of retires is configurable. The retry count starts at 4 seconds and doubles for each ad-
ditional retry (1 = 4 seconds, 2 = 12 seconds, 3 = 28 seconds, 4 = 60 seconds, 5 = 124 seconds)