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C
C-3
GFK-1004B
Appendix C Soft Switch Parameters
Load Source
The Load Source parameter tells the Ethernet Interface the source for its software
download.
The default setting is “ALT”. This cycles between local and network load sources,
starting with local. This method selects the first available load source.
This parameter may also select local or network downloading exclusively. See Table
C-1 for more information.
LAN Online
The LAN Online parameter tells the Ethernet Interface whether or not it should connect
to the network after diagnostics. The default setting is YES.
Backplane Online
This parameter tells the Ethernet Interface whether or not to allow backplane
communications after initialization. The default setting is YES.
Network Load Address
The Network Load Address parameter specifies the multicast address used by this
station to receive network download multicast messages. This parameter is used only for
network downloading. The default value of zeroes means use the default network load
address (090060000000).
A network GSM which is ready to provide network downloading identifies itself on the
network by sending a message to one or more download multicast addresses. This
message contains network data needed by a station to enter the network and request a
download. Each station recognizes a network GSM downloader at only one specific
download multicast address: the address specified in the Network Download Address
parameter.
The Network Load Address must be a valid MAC multicast address; the
Individual/Group address (I/G) bit must be set to “1”. That is, the first byte of the
address must have its least significant bit ON. If you are not familiar with address
formats, refer to “Structure of the MAC Address” in Chapter 3.
Note
The Network Load Address parameter should be changed ONLY if there
is a GEnet System Manager (GSM) which is configured to use this
address. Changing the Network Load Address to an address not used
by some GSM on the network will cause the station to be unable to
receive a network download.