Citrix Systems Network Router NETSCALER 9.3 User Manual

pktPerRetx (Maximum Packets per Retransmission)

The maximum limit on the number of packets that should be retransmitted on
receiving a partial ACK. Minimum value: 1. Maximum value: 100. Default: 1.

minRTO (Minimum RTO (in millisec))

The minimum round trip to origin (RTO) time, in milliseconds. Minimum value: 10.
Maximum value: 64,000. Default: 1,000.

slowStartIncr (Slow Start Increment)

The multiplier that determines the rate at which slow start increases the size of the
TCP transmission window after each acknowledgement of successful transmission.
Minimum value: 1. Maximum value: 100. Default: 2.

SACK (Selective Acknowledgement)

Enable or disable selective acknowledgement (SACK). Possible values: ENABLED,
DISABLED. Default: DISABLED.

nagle (Use Nagle's Algorithm)

Enable or disable the Nagle algorithm on TCP connections. Possible values: ENABLED,
DISABLED. Default: DISABLED.

ackOnPush (Immediate ACK on Receiving Packet with PUSH)

Send immediate positive acknowledgement (ACK) on receipt of TCP packets when
doing Web 2.0 PUSH. Possible values: ENABLED, DISABLED. Default: ENABLED.

To add a TCP profile by using the configuration utility

1. In the navigation pane, expand System, and then click Profiles.

2. In the details pane, on the TCP Profiles tab, click Add.

3. In the Create TCP Profiles dialog box, set the following parameters:

• Name*

• Window Scaling

• Factor

• Maximum Burst Limit

• Initial Congestion Window Size

• TCP Delayed ACK Time-out (msec)

• Maximum ooo Packet Queue Size

• Maximum Packets Per MSS

• Maximum Packets per Retransmission

• Minimum RTO (in millisec)

• Slow Start Increment

• Selective Acknowledgement

Citrix NetScaler Administration Guide

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