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Advanced O&M Command Reference

OceanStor 5000, 5000F, 6000, and 6000F V5 Series V500R007

This document is applicable to OceanStor 5110 V5, 5110F V5, 5300 V5, 5500 V5, 5600 V5, 5800 V5, 6800 V5, 5300F V5, 5500F V5, 5600F V5, 5800F V5, and 6800F V5. Based on the CLI, this document describes how to use various commands classified by functionsand how to set the CLI and manage the storage system through these commands.
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show noma rtt_jitter

show noma rtt_jitter

Function

The show noma rtt_jitter is used to query NOMA algorithm parameters.

Format

show noma rtt_jitter

Parameters

None

Views

Developer view

Usage Guidelines

OceanStor 5110 V5 storage systems supports this command.

Example

Query NOMA algorithm parameters.

developer:/>show noma rtt_jitter 
RTT Jitter Lower            : 20 
RTT Jitter Upper            : 80  
Base RTT Update Peroids(s)  : 60 
Debug Switch                : Off 
Init Switch                 : On  
LOG Switch                  : Off 
Policy Nono Congestion      : 1     
Policy Congestion           : 1 
Controller Add Step unblock : 10      
Update Policy Threshold     : 1     
Controller Add Step         : 10 
Controller Original Policy  : 0     
Threshold Original Policy : 0 
Update Policy Congestion : 1     
Update Policy Parameter     : 200 
Modify Peroids Switch       : Off 
Modify Peroids(jiffies)     : 25 
Threshold Add Step          : 0     
Base RTT Update Switch      : On

System Response

The following table describes the parameter meanings.

Parameter

Meaning

RTT Jitter Lower

Lower limit of delay variation.

RTT Jitter Upper

Upper limit of delay variation.

Base RTT Update Peroids(s)

BASE_RTT update period.

Debug Switch

Configure whether to switch on the debug mode.

Init Switch

Switch that configures whether to initialize the NOMA algorithm when the CA_EVENT_TX_START event occurs.

LOG Switch

Switch that configures whether to log the NOMA algorithm when the CA_EVENT_TX_START event occurs.

Policy Nono Congestion

Set the policy on updating the slow start threshold and that on increasing the congestion window when the CA_EVENT_COMPLETE_CWR event is being processed and congestion does not occur.

Policy Congestion

Set the policy on updating the slow start threshold and that on increasing the congestion window when the CA_EVENT_COMPLETE_CWR event is being processed and congestion occurs.

Controller Add Step unblock

Set the steps by which the congestion window is increased during fake congestion.

Update Policy Threshold

Set the update policy for the threshold of slow start during congestion.

Controller Add Step

Set the steps by which the congestion window is increased when congestion ceases or the TCP connection state transits.

Controller Original Policy

Set the initialization policy for the congestion window during link initialization.

Threshold Original Policy

Set the initialization policy for the threshold of slow start during link initialization.

Update Policy Congestion

Set the update policies for the congestion window and the threshold of slow start when the TCP connection state is restored to OPEN from another state.

Update Policy Parameter

During fake congestion, adjust the congestion window and the threshold of slow start according to the adjustment policies.

Modify Peroids Switch

Switch that configures whether to change the bandwidth estimation period.

Modify Peroids(jiffies)

Bandwidth estimation period.

Threshold Add Step

Set the steps by which the threshold of slow start is increased during congestion.

Base RTT Update Switch

Switch that configures whether to update BASE_RTT.

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Updated: 2019-07-11

Document ID: EDOC1000181619

Views: 579529

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