Contents

Configuring WLAN uplink detection· 1

About WLAN uplink detection· 1

Restrictions and guidelines: WLAN uplink detection· 1

Configuring WLAN uplink detection· 1

WLAN uplink detection configuration examples· 1

Example: Configuring WLAN uplink detection· 1

 

Configuring WLAN uplink detection

About WLAN uplink detection

When the uplink of an AC fails, clients cannot access external networks through the APs that are connected to the AC. WLAN uplink detection associates the uplink state of an AC with the radio state of the connected APs. When the uplink fails, the AC disables the radios of the APs. When the uplink recovers, the AC enables the radios of the APs. The association ensures that clients can associate with APs connected to another AC when the uplink of an AC fails.

This feature collaborates with a detection module and the Track module to function.

·          When the track entry is in Positive state, the AC enables the radios of the connected APs.

·          When the track entry is in Negative state, the AC disables the radios of the connected APs.

·          When the track entry is in Invalid state, the AC does not change the radio state of the connected APs.

For more information about the track module, see "Configuring Track."

Restrictions and guidelines: WLAN uplink detection

For the WLAN uplink detection feature to function correctly, configure a detection module to detect the uplink state, and associate a track entry with the detection module. For more information, see "Configuring Track."

Configuring WLAN uplink detection

1.        Enter system view.

system-view

2.        Associate a track entry with the WLAN uplink detection feature.

wlan uplink track track-entry-number

By default, WLAN uplink detection is not associated with any track entry.

WLAN uplink detection configuration examples

Example: Configuring WLAN uplink detection

Network configuration

As shown in Figure 1, use an NQA operation to test the reachability of each AC's uplink. Configure WLAN uplink detection on each AC so that clients can associate with the AP connected to another AC when the uplink of an AC fails.

Figure 1 Network diagram

 

Procedure

1.        Configure AC 1:

# Create an ICMP echo operation.

<AC1> system-view

[AC1] nqa entry admin test

[AC1-nqa-admin-test] type icmp-echo

# Specify 10.1.1.1 as the destination IP address of ICMP echo requests.

[AC1-nqa-admin-test-icmp-echo] destination ip 10.1.1.1

# Configure the ICMP echo operation to repeat every 1000 milliseconds.

[AC1-nqa-admin-test-icmp-echo] frequency 1000

# Create reaction entry 1. If the number of consecutive probe failures reaches 5, collaboration is triggered.

[AC1-nqa-admin-test-icmp-echo] reaction 1 checked-element probe-fail threshold-type consecutive 5 action-type trigger-only

[AC1-nqa-admin-test-icmp-echo] quit

# Start the ICMP echo operation.

[AC1] nqa schedule admin test start-time now lifetime forever

# Configure track entry 1, and associate it with reaction entry 1 of the NQA operation (with administrator admin and operation tag test).

[AC1] track 1 nqa entry admin test reaction 1

[AC1-track-1] quit

# Associate track entry 1 with WLAN uplink detection.

[AC1] wlan uplink track 1

[AC1] quit

2.        Configure AC 2:

# Create an ICMP echo operation.

<AC2> system-view

[AC2] nqa entry admin test

[AC2-nqa-admin-test] type icmp-echo

# Specify 11.1.1.1 as the destination IP address of ICMP echo requests.

[AC2-nqa-admin-test-icmp-echo] destination ip 11.1.1.1

# Create reaction entry 1. If the number of consecutive probe failures reaches 5, collaboration is triggered.

[AC2-nqa-admin-test-icmp-echo] reaction 1 checked-element probe-fail threshold-type consecutive 5 action-type trigger-only

[AC2-nqa-admin-test-icmp-echo] quit

# Start the ICMP echo operation.

[AC2] nqa schedule admin test start-time now lifetime forever

# Configure track entry 1, and associate it with reaction entry 1 of the NQA operation (with administrator admin and operation tag test).

[AC2] track 1 nqa entry admin test reaction 1

# Associate track entry 1 with WLAN uplink detection.

[AC2] wlan uplink track 1

[AC2] quit

Verifying the configuration

This example uses AC 1 to verify the configuration.

1.        Verify that the radio state of AP 1 is Up when the state of track entry 1 is Positive:

# Display information about track entry 1.

<AC1> display track 1

Track ID: 1

  State: Positive

  Duration: 0 days 1 hours 5 minutes 48 seconds

  Notification delay: Positive 0, Negative 0 (in seconds)

  Tracked object:

    NQA entry: admin test

    Reaction: 1

# Display detailed information about AP ap1.

<AC1> display wlan ap name ap1 verbose

AP name                       : ap1

AP ID                         : 1

AP group name                 : default-group

State                         : Run

Backup Type                   : Master

Online time                   : 0 days 2 hours 25 minutes 12 seconds

System up time                : 0 days 1 hours 22 minutes 12 seconds

Model                         : WA4320H

Region code                   : US

Region code lock              : Disable

Serial ID                     : 219801A0YG8165E00001

MAC address                   : 83D5-AB43-67FF

IP address                    : 1.1.1.2

H/W version                   : Ver.C

S/W version                   : V700R001B62D001

Boot version                  : 1.01

Description                   : wtp1

Priority                      : 4

Echo interval                 : 10 seconds

Statistics report interval    : 50 seconds

Jumbo frame value             : Disabled

MAC type                      : Local MAC & Split MAC

Tunnel mode                   : Local Bridging & 802.3 Frame & Native Frame

Discovery type                : DHCP

Retransmission count          : 3

Retransmission interval       : 5 seconds

Firmware upgrade              : Enabled

Sent control packets          : 1

Received control packets      : 1

Connection count              : 1

Backup Ipv4                   : Not configured

Backup Ipv6                   : Not configured

Tunnel encryption             : Disabled

LED mode                      : Normal

Radio 1:

    Basic BSSID               : N/A

    Admin state               : Up

    Radio type                : 802.11n(5GHz)

    Antenna type              : internal

    Client dot11ac-only       : Disabled

    Client dot11n-only        : Disabled

    Channel band-width        : 20/40MHz

    Secondary channel offset  : SCB

    Short GI for 20MHz        : Supported

    Short GI for 40MHz        : Supported

    A-MSDU                    : Enabled

    A-MPDU                    : Enabled

    LDPC                      : Not Supported

    STBC                      : Supported

    Operational HT MCS Set:

        Mandatory             : Not configured

        Supported             : 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,

                                10, 11, 12, 13, 14, 15

        Multicast             : Not configured

    Channel                   : 64(auto)

    Max power                 : 13 dBm

    Operational rate:

        Mandatory             : 6, 12, 24 Mbps

        Supported             : 9, 18, 36, 48, 54 Mbps

        Multicast             : 24 Mbps

        Disabled              : Not configured

    Distance                  : 1 km

    ANI                       : Enabled

    Fragmentation threshold   : 2346 bytes

    Beacon interval           : 100 TU

    Protection threshold      : 2346 bytes

    Long retry threshold      : 4

    Short retry threshold     : 7

    Maximum rx duration       : 2000 ms

    Noise Floor               : 0 dBm

    Smart antenna             : Enabled

    Smart antenna policy      : Auto

Radio 2:

    Basic BSSID               : N/A

    Admin state               : Up

    Radio type                : 802.11b

    Antenna type              : internal

    Channel                   : 5(auto)

    Max power                 : 20 dBm

    Preamble type             : Short

    Operational rate:

        Mandatory             : 1, 2 Mbps

        Multicast             : Auto

        Supported             : 5.5, 11 Mbps

        Disabled              : Not configured

    Distance                  : 1 km

    ANI                       : Enabled

    Fragmentation threshold   : 2346 bytes

    Beacon interval           : 100 TU

    Protection threshold      : 2346 bytes

    Long retry threshold      : 4

    Short retry threshold     : 7

    Maximum rx duration       : 2000 ms

    Noise Floor               : 0 dBm

2.        Verify that the radio state of AP 1 is Down when the state of track entry 1 is Negative:

# Display information about track entry 1.

<AC1> display track 1

Track ID: 1

  State: Negative

  Duration: 0 days 2 hours 5 minutes 48 seconds

  Notification delay: Positive 0, Negative 0 (in seconds)

  Tracked object:

    NQA entry: admin test

    Reaction: 1

# Display detailed information about AP ap1.

<AC1> display wlan ap name ap1 verbose

AP name                       : ap1

AP ID                         : 1

AP group name                 : default-group

State                         : Run

Backup Type                   : Master

Online time                   : 0 days 3 hours 25 minutes 12 seconds

System up time                : 0 days 2 hours 22 minutes 12 seconds

Model                         : WA4320H

Region code                   : US

Region code lock              : Disable

Serial ID                     : 219801A0YG8165E00001

MAC address                   : 83D5-AB43-67FF

IP address                    : 1.1.1.2

H/W version                   : Ver.C

S/W version                   : V700R001B62D001

Boot version                  : 1.01

Description                   : wtp1

Priority                      : 4

Echo interval                 : 10 seconds

Statistics report interval    : 50 seconds

Jumbo frame value             : Disabled

MAC type                      : Local MAC & Split MAC

Tunnel mode                   : Local Bridging & 802.3 Frame & Native Frame

Discovery type                : DHCP

Retransmission count          : 3

Retransmission interval       : 5 seconds

Firmware upgrade              : Enabled

Sent control packets          : 1

Received control packets      : 1

Connection count              : 1

Backup Ipv4                   : Not configured

Backup Ipv6                   : Not configured

Tunnel encryption             : Disabled

LED mode                      : Normal

Radio 1:

    Basic BSSID               : N/A

    Admin state               : Down

    Radio type                : 802.11n(5GHz)

    Antenna type              : internal

    Client dot11ac-only       : Disabled

    Client dot11n-only        : Disabled

    Channel band-width        : 20/40MHz

    Secondary channel offset  : SCB

    Short GI for 20MHz        : Supported

    Short GI for 40MHz        : Supported

    A-MSDU                    : Enabled

    A-MPDU                    : Enabled

    LDPC                      : Not Supported

    STBC                      : Supported

    Operational HT MCS Set:

        Mandatory             : Not configured

        Supported             : 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,

                                10, 11, 12, 13, 14, 15

        Multicast             : Not configured

    Channel                   : 64(auto)

    Max power                 : 13 dBm

    Operational rate:

        Mandatory             : 6, 12, 24 Mbps

        Supported             : 9, 18, 36, 48, 54 Mbps

        Multicast             : 24 Mbps

        Disabled              : Not configured

    Distance                  : 1 km

    ANI                       : Enabled

    Fragmentation threshold   : 2346 bytes

    Beacon interval           : 100 TU

    Protection threshold      : 2346 bytes

    Long retry threshold      : 4

    Short retry threshold     : 7

    Maximum rx duration       : 2000 ms

    Noise Floor               : 0 dBm

    Smart antenna             : Enabled

    Smart antenna policy      : Auto

Radio 2:

    Basic BSSID               : N/A

    Admin state               : Down

    Radio type                : 802.11b

    Antenna type              : internal

    Channel                   : 5(auto)

    Max power                 : 20 dBm

    Preamble type             : Short

    Operational rate:

        Mandatory             : 1, 2 Mbps

        Multicast             : Auto

        Supported             : 5.5, 11 Mbps

        Disabled              : Not configured

    Distance                  : 1 km

    ANI                       : Enabled

    Fragmentation threshold   : 2346 bytes

    Beacon interval           : 100 TU

    Protection threshold      : 2346 bytes

    Long retry threshold      : 4

    Short retry threshold     : 7

    Maximum rx duration       : 2000 ms

    Noise Floor               : 0 dBm