苏pport for load balancing profile

September 14, 2021

Contributed by:

S C

A load balancing configuration has many parameters, so setting the same parameters on several virtual servers can become tedious. From release 11.1, a load balancing (LB) profile makes this task easier. You can now set load balancing parameters in a profile and associate this profile with virtual servers, instead of setting these parameters on each virtual server.

The following parameters are presently supported in an LB profile:

HTTPonlyflag—Include the HttpOnly attribute in persistence cookies. The HttpOnly attribute limits the scope of a cookie to HTTP requests and helps mitigate the risk of cross-site scripting attacks.
UseSecuredPersistenceCookie—Encrypt the persistence cookie values by using the SHA2 hash algorithm.
Cookiepassphrase—Specify the passphrase used to generate a secured persistence cookie value.
DBS_LB—Enable database specific load balancing for MySQL and MSSQL service types.
Cl_process_local—Packets destined to a virtual server in a cluster are not steered. Enable the option for single packet request response mode or when the upstream device is performing a proper RSS for connection based distribution.
lbHashAlgorithm—Specify the hashing algorithm to be used for the following hash-based load balancing methods:
- URL hash method
- Domain hash method
- Destination IP hash method
- 源IP散列法
- Source IP Destination IP hash method
- Source IP Source Port hash method
- Call ID hash method
- Token method
Possible values: DEFAULT, PRAC, JARH Default value: DEFAULT
lbHashFingers—Specify the number of fingers to be used in PRAC and JARH algorithms for hash-based LB methods. Increasing the number of fingers provides better distribution of traffic at the expense of additional memory.

Default value: 256 Minimum value: 1 Maximum value: 1024

Note

You can set DBS_LB and Cl_process_local parameters on a virtual server and in the profile. If you enable these parameters on a virtual server and then set a profile to this virtual server, the parameters appear as disabled in the output of the"show lb vserver"command for that virtual server. Check the profile to see the actual status of these parameters. In addition, if you set and then unset a profile to a virtual server, the parameters are set with default values for that virtual server.

To create an LB profile by using the CLI

At the command prompt, type:

             add lb profile  -dbsLb ( ENABLED | DISABLED ) -processLocal ( ENABLED | DISABLED ) -httpOnlyCookieFlag ( ENABLED | DISABLED ) -cookiePassphrase -useSecuredPersistenceCookie ( ENABLED | DISABLED ) -lbHashAlgorithm  -lbHashFingers  
            

Example:

             > sh lb profile p1 LB Profile name: p1 DBS LB : DISABLED Process Local: DISABLED Persistence Cookie HttpOnly Flag: ENABLED Use Encrypted Persistence Cookie: DISABLED No of vservers bound: 0 Store MQTT clientid and username in transactional logs: NO Hash LB algorithm used in LB decision: DEFAULT Number of fingers for Hash LB algorithm: 256 Done 
            

To create an LB profile by using the GUI

Navigate toSystem>Profiles>LB Profile, and add a profile.

To associate an LB profile with an LB virtual server by using the CLI

At the command prompt, type:

set lb vserver  -lbprofilename

Example

             set lbvserver lbvip1 -lbprofile p1 Done sh lb vserver lbvip1 lbvip1 (203.0.113.1:80) - HTTP Type: ADDRESS State: UP Last state change was at Wed May 25 12:36:20 2016 Time since last state change: 0 days, 00:01:26.140 Effective State: UP ARP:DISABLED Client Idle Timeout: 180 sec Down state flush: ENABLED Disable Primary Vserver On Down : DISABLED Appflow logging: ENABLED Port Rewrite : DISABLED No. of Bound Services : 2 (Total) 2 (Active) Configured Method: LEASTCONNECTION BackupMethod: ROUNDROBIN Mode: IP Persistence: NONE Vserver IP and Port insertion: OFF Push: DISABLED Push VServer: Push Multi Clients: NO Push Label Rule: none L2Conn: OFF Skip Persistency: None Listen Policy: NONE IcmpResponse: PASSIVE RHIstate: PASSIVE New Service Startup Request Rate: 0 PER_SECOND, Increment Interval: 0 Mac mode Retain Vlan: DISABLED DBS_LB: DISABLED Process Local: DISABLED Traffic Domain: 0 LB Profile: p1 Done 
            

To associate an LB profile with an LB virtual server by using the GUI

Navigate toTraffic Management>Load Balancing>Virtual Servers.
Select a virtual server, and clickEdit.
InAdvanced Settings, clickProfiles.
In theLB Profilelist, select the profile to associate with this virtual server.

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苏pport for load balancing profile

September 14, 2021

Contributed by:

S C

September 14, 2021

Contributed by:

S C

苏pport for load balancing profile

To create an LB profile by using the CLI

To create an LB profile by using the GUI

To associate an LB profile with an LB virtual server by using the CLI

To associate an LB profile with an LB virtual server by using the GUI

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