STAs cannot send pictures

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Procedure for troubleshooting this problem

1. Check whether the Internet access service is normal.

2. Check the Internet gateway, and try to adjust the TCP MSS value to reduce packet fragmentation.

If the AC or AP is connected to the extranet, run the following command to adjust the TCP MSS value on the interface connected to the extranet.

tcp adjust-mss 1200

Other related questions:
Whether eSpace client support send mass picture
ESpace Desktop from the V200R001C03 version began to support the group IM window screenshot sent, but does not support the selection of local pictures sent.ESpace Mobile began to support rich media messages sent from the V200R003C00 version,eSpace mobile client can select multiple images from the mobile phone library (default up to 9) to send. ESpace Desktop supports receiving display, but does not support sending. Description: eSpace Desktop support screenshot sent, unable to send pictures in group.

STAs cannot access some websites
Procedure for troubleshooting this problem 1. Access other websites on the STA. 2. Try to access the websites through the wired network. If these websites cannot be accessed through both wired and wireless networks, this problem is not related to the AC or AP. In this case, check the websites and egress devices.

Why does the AR router not raise alarms
SNMP provides the alarm control function which can be used to control the alarm output of a module. A device can raise alarms only when this function is enabled on it. To enable the alarm switch control function, perform the following steps: 1. Run the system-view command to enter the system view. 2. Run the snmp-agent trap enable command to enable the device to send alarms to the NMS. 3. Run the snmp-agent target-host trap-paramsname paramsname v1 securityname securityname [ binding-private-value ] [ trap-filterprofilename filterprofilename ] [ private-netmanager ] command to set the parameters of the Trap package sent by the device. 4. Run the snmp-agent target-host trap-hostname hostname address ipv4-addr [ udp-port udp-portid ] [ public-net | vpn-instance vpn-instance-name ] trap-paramsname paramsnam command to configure the target host to which the device sends alarms and error codes. Description: 1. The binding-private-value parameter is supported in V200R001C01 or later. 2. The private-netmanager parameter is supported in V200R002C00 or later.

Why cannot an AR router send trap messages

SNMP provides the trap function to control the output of trap messages. An AR router generates trap messages only when the trap function has been enabled on the AR router.

Perform the following operations to enable the trap function on an AR router:

  1. Run the system-view command to enter the system view.
  2. Run the snmp-agent trap enable command to enable the AR router to send trap messages to the NMS.
  3. Run the snmp-agent target-host trap-paramsname paramsname v1 securityname securityname [ binding-private-value ] [ trap-filterprofilename filterprofilename ] [ private-netmanager ] command to set parameters for sending trap messages.
    NOTE:
    • V200R001C01 and later versions support binding-private-value.
    • V200R002C00 and later versions support private-netmanager.
  4. Run the snmp-agent target-host trap-hostname hostname address ipv4-addr [ udp-port udp-portid ] [ public-net | vpn-instance vpn-instance-name ] trap-paramsname paramsname command to specify the destination host for receiving trap messages and error codes.
    NOTE:

    The default destination UDP port number is 162. To ensure secure communication between the NMS and managed devices, run the udp-port command to change the UDP port number to a non-well-known port number.


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