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A – Port- and HBA-level Parameters
Port-level Parameters
SN0054621-00 E A-9
A
Task_Management_
Timeout
0–
65535
TMTO Timeout value for various firmware operations.
For example, timeout value is used for PDUs
created and transmitted that are not related to
IOCB and Task Management commands.
TCP_DHCP on, off TCPDHCP When on, the HBA uses DHCP to get its IP
address, gateway IP address, and subnet mask.
TCP_Nagle on, off TCPN When on, uses Nagle algorithm.
TCP_Time_Stamp on, off TCPTMS When on, puts a timestamp in every transmitted
TCP segment. Receiver ACKs with timestamp
so transmitter can calculate RTT and retrans-
missions. When off, RTT calculated on one out-
standing segment at a time.
TCP_Timer_Scale
a
— n/a Each TCP timer is a number of local timer ticks.
This is a scale factor that adjusts the interval
between timer ticks on each connection allowing
faster timeouts on small networks.
TCP_Window_Scale 0–14 WINSCALE TCP window scale.
VLAN_Enable on, off VLAN When on, VLAN filtering is enabled for the HBA
(IPv4 traffic only).
VLAN_ID 0–4095 VLANID When the VLAN_Enable parameter is on, this
12-bit ID (appended to inbound Ethernet
frames) must match the ID configured for that
interface. (IPv4 traffic only).
VLAN_User_Priority 0–7 VLANUPRIOR When the VLAN_Enable parameter is on, this
16-bit field is appended to outbound Ethernet
frames for the TCP connection. (IPv4 traffic
only).
ZIO 2–16 ZIO Number of completions the firmware posts to the
completion queue before interrupting the host
driver to say there are items in the queue. Valid
only when FW_ZIO_Enable_Mode is on.
Table Footnotes
a
Read-only parameter (alias is not applicable—”n/a”)
b
Router may override this parameter
Table A-1. Port Settings (Continued)
Parameter Value Alias Description