Example for Testing the Jitter and Packet Loss Ratio of a Telepresence Network
Networking Requirements
In the telepresence network shown in Figure 6-58, SwitchA is the source node and SwitchD is the destination node.
| Switch | Interface and IP Address |
|---|---|
| SwitchA |  |
| SwitchD |  |
This example provides the RTP test configuration on SwitchA (NQA client) and configuration of Telepresence packet loss ratio and jitter test on SwitchD (NQA server). After the configurations are complete, the test can be conducted successfully as long as the two switches have reachable route to each other.
Configuration Roadmap
The configuration roadmap is as follows:
Configure IP addresses for interfaces of SwitchA and SwitchD and ensure that the two switches have reachable routes to each other.
Configure SwitchA as the NQA client for RTP test, and configure SwitchD as the NQA server to test the packet loss ratio and jitter of the Telepresence service.
Configure an RTP test instance on the NQA client and an RTP snooping test instance on the NQA server.
Procedure
- Configure IP addresses for interfaces of SwitchA and SwitchD and ensure that the two switches have reachable routes to each other.
# Configure IP addresses and masks for switch interfaces according to Figure 6-58. Configure OSPF on the switches to ensure that they can communicate at the network layer.
<HUAWEI> system-view [HUAWEI] sysname SwitchA [SwitchA] vlan batch 10 20 [SwitchA] interface gigabitethernet1/0/1 [SwitchA-GigabitEthernet1/0/1] port link-type hybrid [SwitchA-GigabitEthernet1/0/1] port hybrid pvid vlan 10 [SwitchA-GigabitEthernet1/0/1] port hybrid untagged vlan 10 [SwitchA-GigabitEthernet1/0/1] quit [SwitchA] interface gigabitethernet1/0/2 [SwitchA-GigabitEthernet1/0/2] port link-type hybrid [SwitchA-GigabitEthernet1/0/2] port hybrid pvid vlan 20 [SwitchA-GigabitEthernet1/0/2] port hybrid untagged vlan 20 [SwitchA-GigabitEthernet1/0/2] quit [SwitchA] interface vlanif 10 [SwitchA-Vlanif10] ip address 10.1.1.2 24 [SwitchA-Vlanif10] quit [SwitchA] interface vlanif 20 [SwitchA-Vlanif20] ip address 10.2.1.2 24 [SwitchA-Vlanif20] quit [SwitchA] ospf [SwitchA-ospf-1] area 0 [SwitchA-ospf-1-area-0.0.0.0] network 10.1.1.0 0.0.0.255 [SwitchA-ospf-1-area-0.0.0.0] network 10.2.1.0 0.0.0.255 [SwitchA-ospf-1-area-0.0.0.0] quit [SwitchA-ospf-1] quit
For configurations of SwitchD, see the configuration file.
- Configure an RTP test instance.
# On SwitchA, configure an NQA test instance, set the NQA test type to rtptest, and configure the source and destination port numbers and IP addresses.
[SwitchA] nqa test-instance admin rtptest[SwitchA-nqa-admin-rtptest] test-type rtptest[SwitchA-nqa-admin-rtptest] source-address ipv4 10.1.1.2[SwitchA-nqa-admin-rtptest] source-port 8000[SwitchA-nqa-admin-rtptest] destination-address ipv4 10.1.2.2[SwitchA-nqa-admin-rtptest] destination-port 9000# On SwitchD, configure an NQA test instance, set the NQA test type to rtpsnoop, and configure the source and destination port numbers and IP addresses.
[SwitchD] nqa test-instance admin rtpsnoop[SwitchD-nqa-admin-rtpsnoop] test-type rtpsnoop[SwitchD-nqa-admin-rtpsnoop] source-address ipv4 10.1.1.2[SwitchD-nqa-admin-rtpsnoop] source-port 8000[SwitchD-nqa-admin-rtpsnoop] destination-address ipv4 10.1.2.2[SwitchD-nqa-admin-rtpsnoop] destination-port 9000[SwitchD-nqa-admin-rtpsnoop] quit - Configure the RTP snooping server.
# Configure the RTP snooping server on SwitchD.
[SwitchD] nqa-server rtp-udp 10.1.2.2 9000 - Start the NQA test instance.
# On SwitchA, start the RTP test instance.
[SwitchA-nqa-admin-rtptest] start now# On SwitchD, start the RTP snoop test instance.
[SwitchD] nqa test-instance admin rtpsnoop[SwitchD-nqa-admin-rtpsnoop] start now - Verify test results.
# On SwitchA, verify RTP test results.
[SwitchA-nqa-admin-rtptest] display nqa results test-instance admin rtptestNQA entry(admin, rtptest) :testflag is inactive ,testtype is rtptest 1 . Test 1 result The test is finished Completion:finished SendProbe:60000 ResponseProbe:59999 NumOfRTT:59999 Packet Loss Ratio:0% Min/Max/Avg/Sum RTT:0/0/0/0 ms Min/Max/Avg jitter:0/0/0 Destination Port:9000 Source Port:8000 Destination Address Type/Address:IPv4/10.1.2.2 Source Address Type/Address:IPv4/10.1.1.2# On SwitchD, verify RTP snoop test results.
[SwitchD-nqa-admin-rtpsnoop] display nqa results test-instance admin rtpsnoopNQA entry(admin, rtpsnoop) :testflag is inactive ,testtype is rtpsnoop 1 . Test 1 result The test is finished Completion:finished Snoop Packet:11202 DSCP Value:0 Min/Max/Avg jitter:0/0/0 Max Packet Lost:0 Packet Lost Ratio:0% Destination Port:9000 Source Port:8000 Destination Address Type/Address:IPv4/10.1.2.2 Source Address Type/Address:IPv4/10.1.1.2
Configuration Files
SwitchA configuration file
# sysname SwitchA # vlan batch 10 20 # interface Vlanif10 ip address 10.1.1.2 255.255.255.0 # interface Vlanif20 ip address 10.2.1.2 255.255.255.0 # interface GigabitEthernet1/0/1 port link-type hybrid port hybrid pvid vlan 10 port hybrid untagged vlan 10 # interface GigabitEthernet1/0/2 port link-type hybrid port hybrid pvid vlan 20 port hybrid untagged vlan 20 # ospf 1 area 0.0.0.0 network 10.1.1.0 0.0.0.255 network 10.2.1.0 0.0.0.255 # nqa test-instance admin rtptest test-type rtptest destination-address ipv4 10.1.2.2 source-address ipv4 10.1.1.2 destination-port 9000 source-port 8000 # return
SwitchD configuration file
# sysname SwitchD # vlan batch 10 20 # interface Vlanif10 ip address 10.1.2.2 255.255.255.0 # interface Vlanif20 ip address 10.2.2.2 255.255.255.0 # interface GigabitEthernet1/0/1 port link-type hybrid port hybrid pvid vlan 10 port hybrid untagged vlan 10 # interface GigabitEthernet1/0/2 port link-type hybrid port hybrid pvid vlan 20 port hybrid untagged vlan 20 # ospf 1 area 0.0.0.0 network 10.1.2.0 0.0.0.255 network 10.2.2.0 0.0.0.255 # nqa-server rtp-udp 10.1.2.2 9000 # nqa test-instance admin rtpsnoop test-type rtpsnoop destination-address ipv4 10.1.2.2 source-address ipv4 10.1.1.2 destination-port 9000 source-port 8000 # return