How do I enable the packet loss concealment function on a VP9000 series MCU?

If you cannot capture packets on firewall interfaces but you want to view packet loss information, you can use the quintuple packet capture statistics function. The operation is as follows: 1. Create an ACL. [system] acl 3999 [system-acl-adv-3999] rule 5 permit icmp source 10.2.4.2 0 destination 10.2.2.2 0 [system] diagnose [system-diagnose] firewall statistic acl 3999 enable 3. View quintuple packet capture statistics information. system-view [sysname] diagnose [sysname-diagnose] display firewall statistics acl ******************************************************************************** * Summary of ACL-based packet statistics * ******************************************************************************** SLOT 1 CPU 1 RcvnFrag RcvFrag Forward DisnFrag DisFrag Obverse(pkts) : 100 0 95 0 0 Reverse(pkts) : 100 0 100 0 0 SLOT 1 CPU 3 RcvnFrag RcvFrag Forward DisnFrag DisFrag Obverse(pkts) : 2 0 2 0 0 Reverse(pkts) : 1 0 1 0 0 SLOT: 2 Fastforward Discard Obverse(pkts) : 98 0 Reverse(pkts) : 999 0 Detailed information of discarded packets: ******************************************************************************** * Detailed information of ACL-based packet statistics * ******************************************************************************** Protocol(udp) SourceIp(10.2.4.2) DestinationIp(10.2.2.2) SourcePort(333) DestinationPort(444) VpnIndex(public) RcvnFrag RcvFrag Forward DisnFrag DisFrag Obverse(pkts) : 2 0 2 0 0 Reverse(pkts) : 1 0 1 0 0 Discard detail information: Protocol(udp) SourceIp(10.2.4.2) DestinationIp(10.2.2.2) SourcePort(555) DestinationPort(666) VpnIndex(public) RcvnFrag RcvFrag Forward DisnFrag DisFrag Obverse(pkts) : 100 0 95 5 0 Reverse(pkts) : 100 0 100 0 0 Discard detail information: Packet filter packets discarded: 5 Please check the security policy and whether the interface added to a security zone. 4. After locating the problem, run the undo firewall statistics acl command to disable the quintuple packet statistics function to prevent adverse impact on device performance.

For S series switches (except the S1700), you can run the ping command to check ping packet loss directly. For example: [HUAWEI] ping -c 100 192.168.2.21 PING 192.168.2.21: 56 data bytes, press CTRL_C to break Reply from 192.168.2.21: bytes=56 Sequence=1 ttl=124 time=1 ms ... --- 192.168.2.21 ping statistics --- 100 packet(s) transmitted //Total number of sent packets 91 packet(s) received //Total number of received packets 9.00% packet loss //Packet loss ratio round-trip min/avg/max = 1/1/19 ms You can also perform the following steps to configure traffic statistics collection to check ping packet loss: Configure traffic statistics collection for packets received by a switch. 1. Configure an ACL rule. [HUAWEI] acl number 3000 [HUAWEI-acl-adv-3000] rule permit icmp source 192.168.2.21 0 destination 192.168.2.20 0 [HUAWEI-acl-adv-3000] quit 2. Configure a traffic classifier. [HUAWEI] traffic classifier 3000 [HUAWEI-classifier-3000] if-match acl 3000 [HUAWEI-classifier-3000] quit3. Configure a traffic behavior. [HUAWEI] traffic behavior 3000 [HUAWEI-behavior-3000] statistic enable [HUAWEI-behavior-3000] quit 4. Configure a traffic policy. [HUAWEI] traffic policy 3000 [HUAWEI-trafficpolicy-3000] classifier 3000 behavior 3000 [HUAWEI-trafficpolicy-3000] quit 5. Apply the traffic policy to an interface. [HUAWEI] interface gigabitethernet 0/0/2 [HUAWEI-GigabitEthernet0/0/2] traffic-policy 3000 inbound [HUAWEI-GigabitEthernet0/0/2] quit 6. Check traffic statistics of packets received by the switch. [HUAWEI] display traffic policy statistics interface gigabitethernet 0/0/2 inbound verbose rule-base //The output is omitted. For more information about ping packet loss, see "Ping Failure Troubleshooting" or "S Series Switches packet Loss Troubleshooting" in "Maintenance Topics" in the Huawei S Series Campus Switches Maintenance Guide.

To capture signaling packets on a VP9000 series MCU, perform the following operations: Log in to the MCU web interface, choose Settings > Maintenance > Signaling Diagnostics, click Start, reproduce the problem, click Stop, and export captured signaling packets. To capture signaling packets on a ViewPoint 8000 series MCU, perform the following operations: Log in to the MCU web interface, choose Settings > Maintenance > Signaling Diagnostics, and start signaling packet capture. Reproduce the problem. After packet capture ends, click Export to export signaling diagnostics or captured packets.

Commands of disabling packet loss concealment (PLC) on endpoints: ui config set conf.VidArqCap: Disable the ARQ PLC capability. ui config set conf.EnableSEC: Disable the SEC1.0 PLC capability. ui config set conf.EnableSEC2: Disable the SEC2.0 PLC capability for video delivery. ui config set conf.EnableSEC2Aux: Disable the SEC2.0 PLC capability for presentation delivery. To disable the ARQ PLC, for example, run the following commands: main cpu ui config set conf.VidArqCap VidArqCap(0): 0 main cpu mc allparam save Save Current g_AllParam ! Restart the endpoint for the configuration to take effect.

On the home screen, choose Apps > System > Bluetooth. The Bluetooth screen is displayed. Press Enable. After you enable Bluetooth, you can perform the following steps to pair a Bluetooth device with the phone: On the home screen, choose Apps > System > Bluetooth. The Bluetooth screen is displayed. Press Search. NOTE: Before the phone searches for Bluetooth devices, ensure that Bluetooth is enabled for the device to be paired. Select the Bluetooth device to pair and press Connect. NOTE: The default password for pairing a Bluetooth device is 0000 on the IP phone. If the password of your Bluetooth device to pair is not 0000, enter the actual password in the Bluetooth Match Request dialog box that is displayed on the IP phone, and press Match for a re-connection. When the pairing succeeds, the paired Bluetooth device becomes connected to the phone.