Got it

Guide capture DSP media for AR router series.

798 0 0 0 0

Hello everyone,

Today I will share with you how to capture DSP media for AR series router(V2R7, AR series with MindSpeed DSP).

DSP capture is the final method for the troubleshooting of analog voice issues. It can capture the analog media flow, Modem signal, or fax signal, pack them into IP packets, and redirect to the capture server. As soon as the server gets the packets, RnD will analyze the packets by using professional software. Finally, we can get two-direction media to flow sent/received by the DSP module, to that confirm the issue origin.

Working topology080801n4bd4gcatn6btbn4.jpg


Procedure:

1. Install Wireshark on PC to capture the packets received from local interface.

2. Configure local IP on PC, and ensure it is reachable with AR’s voice service IP address.

a) On the AR configure a new Vlan and Vlanif interface to allow Vlan inter- routing with the Voice Service IP (e.g Vlan 120).

Huawei> system-view

[Huawei] vlan 120

[Huawei-vlan120] quit

[Huawei] interface vlanif 120

[Huawei-Vlanif120] ip address 192.168.0.1 255.255.255.0

[Huawei-Vlanif120]quit

[Huawei]interface Ethernet 0/0/1

[Huawei-Ethernet0/0/1] port link-type access

[Huawei-Ethernet0/0/1] port default vlan 120

b) Configure the IP address 192.168.0.2 and mask 255.255.255.0 on the PC.

c) Validate that PC can ping the voice Service IP 172.16.0.1 

3. Configure mandatory capture configuration on target FXO port (For details please refer to the next section).

Configuration

Enter the mandatory command to activate internally command lines.

[AR]voice

[AR-voice]sipserver

[AR-voice-sipserver]reg-count-per-second 10

Configure mandatory parameters for remote capture.

[AR]voice

[AR-voice]diag

[AR-voice-vdiagnose]remote-capture server-ip 192.168.1.2 udp-port 9999 source-ip 172.16.0.1

[AR-voice-vdiagnose]remote-capture trace port 1/0/4 base enable

P.S: Server IP (PC ip) and Source IP (Voice Service IP) must be reachable with each other.

Note:  Service-ip is IP address of PC. Source-IP is voice source IP of AR.

Set the FXO port which should be captured.

Establish calls

If UDP flow with destination port value eq 9999 can be captured from Wireshark on PC, it means the analog media flow is successfully redirected to PC. Then save the Wireshark file, and provide it to RnD for following deep analysis.

 080803xpvshvsabgaz00ta.jpg

Analysis procedures

1. Open the packet file with Wireshark, and save it as ‘.pcap’.

080805ap3h3uhduxpp3m35.jpg

2. Open the file with Beethoven , then click Extract->Extract Unified Diag over IP/UDP to generate a ‘.cap’ file.

080808x89f99fzx12ydyrr.jpg

Open the ‘.cap’ file with Beethoven, then click STAT.

080810p5eb7e98wybuu7bz.jpg

080812ycc0jlf3yot0kkxx.jpg

4. Open the two files with Cool Edit, and directly listen to them.

That is all I want to share with you! Thank you!

  • x
  • convention:

Comment

You need to log in to comment to the post Login | Register
Comment

Notice: To protect the legitimate rights and interests of you, the community, and third parties, do not release content that may bring legal risks to all parties, including but are not limited to the following:
  • Politically sensitive content
  • Content concerning pornography, gambling, and drug abuse
  • Content that may disclose or infringe upon others ' commercial secrets, intellectual properties, including trade marks, copyrights, and patents, and personal privacy
Do not share your account and password with others. All operations performed using your account will be regarded as your own actions and all consequences arising therefrom will be borne by you. For details, see " User Agreement."

My Followers

Login and enjoy all the member benefits

Login

Block
Are you sure to block this user?
Users on your blacklist cannot comment on your post,cannot mention you, cannot send you private messages.
Reminder
Please bind your phone number to obtain invitation bonus.