- Table of Contents
-
- 02-WLAN Configuration Guides
- 00-Preface
- 01-AP management configuration
- 02-Radio management configuration
- 03-WLAN access configuration
- 04-WLAN security configuration
- 05-WLAN authentication configuration
- 06-WIPS configuration
- 07-WLAN QoS configuration
- 08-WLAN roaming configuration
- 09-WLAN load balancing configuration
- 10-WLAN radio resource measurement configuration
- 11-Channel scanning configuration
- 12-Band navigation configuration
- 13-WLAN high availability configuration
- 14-802.11r configuration
- 15-Wireless location configuration
- 16-AC hierarchy configuration
- 17-WLAN RRM configuration
- 18-WLAN IP snooping configuration
- 19-WLAN probe configuration
- 20-Spectrum management configuration
- 21-WLAN radio load balancing configuration
- 22-User isolation configuration
- 23-Packet capture configuration
- 24-802.1X client configuration
- 25-IP source guard configuration
- Related Documents
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Title | Size | Download |
---|---|---|
21-WLAN radio load balancing configuration | 125.75 KB |
Configuring WLAN radio load balancing
About WLAN radio load balancing
Radio load balancing modes and types
Restrictions and guidelines: WLAN radio load balancing configuration
WLAN radio load balancing tasks at a glance
Prerequisites for WLAN radio load balancing
Enabling WLAN radio load balancing
Configuring radio load balancing parameters
Display and maintenance commands for WLAN radio load balancing
WLAN radio load balancing configuration examples
Example: Configuring WLAN radio load balancing
Configuring WLAN radio load balancing
About WLAN radio load balancing
WLAN radio load balancing dynamically loads balance clients across radios on APs managed by the same AC. It ensures wireless service quality and adequate bandwidth for clients in high-density WLANs.
Networking scheme
As shown in Figure 1, AP 1 and AP 2 are managed by the same AC and they each have Radio 1 and Radio 2 enabled. Radio load balancing is enabled in the WLAN. Radio 1 and Radio 2 of AP 1 have reached their maximum load. When Client 6 tries to associate with a radio on AP 1, the AC rejects the association request and directs Client 6 to other radios.
Radio load balancing modes and types
The device supports session-mode radio load balancing and the following radio load balancing types:
· Session gap threshold based—The device performs radio load balancing when the following conditions are met:
¡ The number of clients associated with a radio reaches the session threshold.
¡ The session gap between the radio and the radio that has the fewest clients reaches the session gap threshold.
· Band ratio based—The device performs radio load balancing in the following scenarios:
Scenario 1
¡ A client requests to associate with a 5 GHz radio.
¡ The number of clients associated with the 5 GHz radio reaches the session threshold.
¡ The ratio of clients associated with all 5 GHz neighbor radios to clients associated with all 2.4 GHz neighbor radios of the client is larger than the band ratio.
Scenario 2
¡ A client requests to associate with a 2.4 GHz radio.
¡ The number of clients associated with the 2.4 GHz radio reaches the session threshold.
¡ The ratio of clients associated with all 5 GHz neighbor radios to clients associated with all 2.4 GHz neighbor radios of the client is smaller than the band ratio.
|
NOTE: Neighbor radios of a client refer to all radios that receive requests from the client. |
Restrictions and guidelines: WLAN radio load balancing configuration
When a client requests to access the WLAN, the system performs radio load balancing only among radios of APs managed by the same AC and can be detected by the client.
WLAN radio load balancing and WLAN load balancing or band navigation are mutually exclusive. For more information about WLAN load balancing and band navigation, see "Configuring WLAN load balancing" and "Configuring band navigation" in WLAN Configuration Guide.
WLAN radio load balancing tasks at a glance
To configure WLAN radio load balancing, perform the following tasks:
· (Required.) Enabling WLAN radio load balancing
· (Optional.) Configuring radio load balancing parameters
Prerequisites for WLAN radio load balancing
Before you configure radio load balancing, make sure the quick association function is disabled. For more information about quick association, see "Enabling quick association" in WLAN Configuration Guide.
Enabling WLAN radio load balancing
1. Enter system view.
system-view
2. Enable WLAN radio load balancing.
wlan radio-load-balance enable [ mode session value [ gap gap-value | band-ratio 5g-proportion 2.4g-proportion ] [ report-time time ] ]
By default, WLAN radio load balancing is disabled.
Configuring radio load balancing parameters
About radio load balancing parameters
The following parameters affect radio load balancing calculation:
· Radio load balancing RSSI threshold—If a radio detects that the RSSI of a client is lower than the specified RSSI threshold, the radio ignores the association requests of the client.
· Maximum number of denials for association requests—If the number of times that a radio rejects a client reaches the specified maximum number of denials for association requests, the radio accepts the association request of the client.
Procedure
1. Enter system view.
system-view
2. Set the RSSI threshold.
wlan radio-load-balance rssi-threshold rssi-threshold
By default, the RSSI threshold is 30.
3. Set the maximum number of denials for association requests.
wlan radio-load-balance access-denial access-denial
By default, the maximum number of denials is 3 for association requests.
Display and maintenance commands for WLAN radio load balancing
Execute the display command in any view.
Task |
Command |
Display radio load balancing information for radios that are bound to a service template. |
display wlan radio-load-balance status service-template template-name client mac-address |
WLAN radio load balancing configuration examples
Example: Configuring WLAN radio load balancing
Network configuration
As shown in Figure 2, AP 1 and AP 2 are managed by the AC and the clients can discover the APs. Client 1 associates with AP 1, and Client 2 through Client 4 associate with AP 2.
Configure the AP to perform radio load balancing on radios of AP 1 and AP 2 when the following conditions are met:
· The number of sessions on a radio of an AP reaches 3.
· The session gap between the radio and the radio that has the fewest sessions reaches 2.
Procedure
# Create wireless service template 1, and set its SSID to rlb.
<AC> system-view
[AC] wlan service-template 1
[AC-wlan-st-1] ssid rlb
[AC-wlan-st-1] service-template enable
[AC-wlan-st-1] quit
# Create AP template ap1, and specify the model and serial ID.
[AC] wlan ap ap1 model WA4320H
[AC-wlan-ap-ap1] serial-id 219801A0YG8165E00001
# Bind service template 1 to radio 2 of AP 1.
[AC-wlan-ap-ap1] radio 2
[AC-wlan-ap-ap1-radio-2] service-template 1
[AC-wlan-ap-ap1-radio-2] radio enable
[AC-wlan-ap-ap1-radio-2] quit
[AC-wlan-ap-ap1] quit
# Create AP template ap2, and specify the model and serial ID.
[AC] wlan ap ap2 model WA4320H
[AC-wlan-ap-ap2] serial-id 219801A0YG8165E00002
# Bind service template 1 to radio 2 of AP 2.
[AC-wlan-ap-ap2] radio 2
[AC-wlan-ap-ap2-radio-2] service-template 1
[AC-wlan-ap-ap2-radio-2] radio enable
[AC-wlan-ap-ap2-radio-2] quit
[AC-wlan-ap-ap2] quit
# Enable WLAN radio load balancing, and set the session threshold and session gap threshold to 3 and 2, respectively.
[AC] wlan radio-load-balance enable mode session 3 gap 2
# Set the RSSI threshold to 30.
[AC] wlan radio-load-balance rssi-threshold 30
# Set the maximum number of denials for association requests to 4.
[AC] wlan radio-load-balance access-denial 4
Verifying the configuration
# Verify that the AC performs radio load balancing on radios of AP 1 and AP 2 when the following conditions are met:
· The number of sessions on radio 2 of AP 2 reaches 3.
· The session gap between radio 2 of AP 2 and radio 2 of AP 1 reaches 2. (Details not shown.)
# Verify that radio 2 on AP 1 and radio 2 on AP 2 are load balanced by using the display wlan client command. (Details not shown.)