WLAN User Details Test

This test auto-discovers the WLAN users who are logged in on the WLANs that are under control of the Ruckus ZoneDirector and reveals the radio type to which each user is associated with. For each user, this test measures the rate at which the packets were transmitted/received, the rate at which the data was transmitted/received, and the rate at which the error packets transmitted/received. In addition, this test reports the number of times the transmission was retried by each user and the amount of data retransmitted by each user after transmission failure. In the process, administrators can also detect the Signal-to-Noise ratio for each user and the strength of the signal transmitted/received by each user.

Target of the test : A Ruckus ZoneDirector

Agent deploying the test : An external agent

Outputs of the test : One set of results for each user on the WLANs that are under control of the target Ruckus ZoneDirector being monitored.

Configurable parameters for the test
Parameters Description

Test period

How often should the test be executed

Host

The host for which the test is to be configured.

SNMPPort

The port at which the monitored target exposes its SNMP MIB; the default is 161.

SNMPversion

By default, the eG agent supports SNMP version 1. Accordingly, the default selection in the SNMPversion list is v1. However, if a different SNMP framework is in use in your environment, say SNMP v2 or v3, then select the corresponding option from this list.

SNMPCommunity

The SNMP community name that the test uses to communicate with the firewall. This parameter is specific to SNMP v1 and v2 only. Therefore, if the snmpversion chosen is v3, then this parameter will not appear.

Username

This parameter appears only when v3 is selected as the SNMPversion. SNMP version 3 (SNMPv3) is an extensible SNMP Framework which supplements the SNMPv2 Framework, by additionally supporting message security, access control, and remote SNMP configuration capabilities. To extract performance statistics from the MIB using the highly secure SNMP v3 protocol, the eG agent has to be configured with the required access privileges – in other words, the eG agent should connect to the MIB using the credentials of a user with access permissions to be MIB. Therefore, specify the name of such a user against this parameter. 

Context

This parameter appears only when v3 is selected as the SNMPVERSION. An SNMP context is a collection of management information accessible by an SNMP entity. An item of management information may exist in more than one context and an SNMP entity potentially has access to many contexts. A context is identified by the SNMPEngineID value of the entity hosting the management information (also called a contextEngineID) and a context name that identifies the specific context (also called a contextName). If the Username provided is associated with a context name, then the eG agent will be able to poll the MIB and collect metrics only if it is configured with the context name as well. In such cases therefore, specify the context name of the Username in the Context text box.  By default, this parameter is set to none.

Authpass

Specify the password that corresponds to the above-mentioned Username. This parameter once again appears only if the SNMPversion selected is v3.

Confirm password

Confirm the Authpass by retyping it here.

Authtype

This parameter too appears only if v3 is selected as the SNMPversion. From the Authtype list box, choose the authentication algorithm using which SNMP v3 converts the specified username and password into a 32-bit format to ensure security of SNMP transactions. You can choose between the following options:

  • MD5 – Message Digest Algorithm
  • SHA – Secure Hash Algorithm

Encryptflag

This flag appears only when v3 is selected as the SNMPversion. By default, the eG agent does not encrypt SNMP requests. Accordingly, the this flag is set to No by default. To ensure that SNMP requests sent by the eG agent are encrypted, select the Yes option. 

Encrypttype

If this Encryptflag is set to Yes, then you will have to mention the encryption type by selecting an option from the Encrypttype list. SNMP v3 supports the following encryption types:

  • DES – Data Encryption Standard
  • AES – Advanced Encryption Standard

Encryptpassword

Specify the encryption password here.

Confirm Password

Confirm the encryption password by retyping it here.

Timeout

Specify the duration (in seconds) within which the SNMP query executed by this test should time out in this text box. The default is 10 seconds.

Data Over TCP

By default, in an IT environment, all data transmission occurs over UDP. Some environments however, may be specifically configured to offload a fraction of the data traffic – for instance, certain types of data traffic or traffic pertaining to specific components – to other protocols like TCP, so as to prevent UDP overloads. In such environments, you can instruct the eG agent to conduct the SNMP data traffic related to the monitored target over TCP (and not UDP). For this, set this flag to Yes. By default, this flag is set to No.

Detailed Diagnosis

To make diagnosis more efficient and accurate, the eG Enterprise embeds an optional detailed diagnostic capability. With this capability, the eG agents can be configured to run detailed, more elaborate tests as and when specific problems are detected. To enable the detailed diagnosis capability of this test for a particular server, choose the On option. To disable the capability, click on the Off option.

The option to selectively enable/disable the detailed diagnosis capability will be available only if the following conditions are fulfilled:

  • The eG manager license should allow the detailed diagnosis capability
  • Both the normal and abnormal frequencies configured for the detailed diagnosis measures should not be 0.
Measurements made by the test
Measurement Description Measurement Unit Interpretation

Radio type

Indicates the type of radio to which this user is associated with.

 

The values reported by this measure and its numeric equivalents are mentioned in the table below:

Measure value Numeric Value
Radio11a 0
Radio11b 1
Radio11g 2
Radio11ng 3
Radio11na 4

Note:

By default, this measure reports the Measure Values listed in the table above to indicate the Radio type of this user. The graph of this measure however, represents the type of a rogue device using the numeric equivalents only - 0 and 4.

The detailed diagnosis of this measure provides you the Access point mac address and service set ID (SSID) of the WLAN user.

Packets transmitted

Indicates the rate at which the packets were transmitted by this user.

Packets/sec

 

Packets received

Indicates the rate at which the packets were received by this user.

Packets/sec

 

Data transmitted

Indicates the rate at which the data was transmitted by this user.

MB/sec

 

Data received

Indicates the rate at which the data was received by this user.

MB/sec

 

Transmitted packets dropped

Indicates the rate at which the packets were dropped during transmission.

Packets/sec

Ideally, the value of this measure should be zero.

Received packets dropped

Indicates the rate at which the packets were dropped during reception.

Packets/sec

Ideally, the value of this measure should be zero.

Transmitted error packets

Indicates the rate at which the error packets were transmitted by this user.

Packets/sec

Ideally, the values of these measures should be zero. A higher value results in unreliable connection and affects throughput.

 

Received error packets

Indicates the rate at which the error packets were received by this user.

Packets/sec

Transmitted retries

Indicates the number of times the transmission was retried by this user after transmission failure.

Number

 

Transmitted retry data

Indicates the rate at which the data was retransmitted by this user after transmission failure.

MB/sec

 

Signal noise ratio

Indicates the Signal-to-Noise Ratio for this user.

dB

Ideally, the value of this measure should be high.

Signal strength

Indicates the signal strength of this user.

dBm_negative

Ideally, the value of this measure should be high. Since stronger signal strength results in more reliable communication and higher speeds.