LAN Configuration and Management Manual
SCF Commands for the SLSA Subsystem
LAN Configuration and Management Manual—520469-012
4-34
ALTER PIF Command
10 through 200 milliseconds. The default value is 10 milliseconds. This attribute is 
supported for ATM3SAs only. The value of df-count is in the range of 1 through 50. 
The default is 2. This attribute is supported for ATM3SAs only.
DUPLEX { HALF | FULL }
Select HALF to set the FESA, GESA, or G4SA communication line to half duplex. 
Select FULL to set the FESA, GESA, or G4SA communication line to full duplex. 
An error is returned if the AUTONEGOTIATION attribute is set to ON. The 
DUPLEX attribute is supported only for FESAs, GESAs, and G4SAs. The value 
must be set by the user.  There is no default value.
EARLYTOKENRELEASE { ON | OFF }
specifies whether the adapter operates in the early token release mode. This 
parameter applies only to 16 Mbps operation. The default is OFF. 
EARLYTOKENRELEASE is supported for TRSAs only.
EMSVERBOSE { ON | OFF }
Select ON to enable issuing detailed informational EMS messages from the 
ATMSAP PIF. Select OFF to disable issuing detailed informational EMS messages 
from the ATM3SA PIF. Detailed informational EMS messages display control and 
flow of PIF processing within the ATM3SA adapter. This information is used 
primarily for debugging purposes. The default value is OFF. This attribute is 
supported for ATM3SAs only.
JUMBOFRAME { ON | OFF }
specifies whether the adapter operates with the IEEE standard of 1.5K bytes as 
the maximum transmission unit (MTU) or with the jumbo frame size of 9K bytes. 
The default is OFF. JUMBOFRAME is supported for GESAs and G4SAs only. 
Jumbo frames are supported by Parallel Library TCP/IP and NonStop TCP/IPv6, 
but not by conventional TCP/IP. Parallel Library TCP/IP and NonStop TCP/IPv6 
must be configured for use with jumbo frames. Use the ALTER SUBNET command 
to set the MTU value. Set an MTU size between 512 and 65535 in the 
configuration. To allow jumbo frames, set the MTU greater than the default frame 
size of 1500 bytes. Either the receiving PIF and all intermediate switches and 
routers must also have the same MTU size, or you must use PATHMTU to allow 
discovery of the MTU. 
LINESPEED { 10 | 100 | 1000 }
Select 10 to set the FESA communication line to 10 Mbit/s. Select 100 to set the 
FESA communication line to 100 Mbit/s. The GESA  and G4SA adapters with a 
copper interface can be set to any speed (typically 1000), but the fiber interface 
may only be set to 1000. An error is returned if the LINESPEED attribute is set 
when AUTONEGOTIATION is set to ON. The LINESPEED attribute is supported 
Note. Parallel Library TCP/IP is not supported on Integrity NonStop NS-series servers.










