PAM Configuration and Management Manual

SCF for PAM
PAM Configuration and Management Manual—523349-003
3-16
ALTER PORT Command
is thousandths of a second (milliseconds). The valid range is 0.01 second (10
milliseconds) through 60 seconds. The decimal point is significant. Fractions of a
second must be entered with a zero preceding the decimal point (for example,
0.01). If the message should wait indefinitely, the keyword INFINITE must be
specified.
The delivery of inbound messages is also triggered when the number of messages
present in the receive queue equals the DATAFORWARDCOUNT value described
here, regardless of the amount of time elapsed.
DELIVERYMODE
determines how READ requests are queued. SERIAL causes all READs to be
queued together and serviced first-in, first-out. PARALLEL causes READ requests
to be queued separately for each opener of the PORT. Inbound messages are
delivered to each opener of the port that has a READ posted.
GROUPMACADDRESS macaddress
is a locally administered MAC address. The adapter listens for frames that contain
this group address at the MAC level instead of frames that contain the
individual-station MAC address. Several adapters can have the same group MAC
address. All of them will receive any frames sent to that address. This group
address overrides the adapter’s default individual-station MAC address only for this
particular port. The macaddress value must be specified as 12 hexadecimal digits
with bit 0 of byte 0 set to 1. The keyword DEFAULT is used to change a port’s
GROUPMACADDRESS back to the adapter’s default MAC address.
REQUESTSIZE integer
is the maximum size, in bytes, of a message that the port can write and read. This
attribute’s value cannot be greater than the LINE’s MAXREQUESTSIZE. The
minimum value that must be specified for this attribute is 32 bytes for Ethernet-type
ports and 49 bytes for LLC1-type ports. The range of values is 1 through 32000.
The default is 32000.
Consideration
DATAFOWARDTIME and DATAFORWARDCOUNT can be altered when the port is
STOPPED or STARTED. To alter other attributes, the port must first be stopped.
Example
This example alters the DATAFORWARDCOUNT to 10 for the port name #ENET1:
->ALTER PORT $PAMA.#ENET1, DATAFORWARDCOUNT 10