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Example for Sending Trap Massages to the NMS When the Transmission Delay Threshold Is Exceeded
Networking Requirements
A Jitter test needs to be performed to configure a transmission delay threshold and enable the trap function as shown in Figure 6-56. After the jitter test is complete, SwitchA sends a trap message to the NMS when the interval for transmitting the test packet from SwitchA to SwitchC or from SwitchC to SwitchA exceeds the configured unidirectional transmission threshold, or when the RTT of the test packet exceeds the configured two-way transmission threshold. According to the traps received by the NMS, network administrators can easily locate the fault.
Configuration Roadmap
The configuration roadmap is as follows:
Configure SwitchC as the NQA server and configure the host IP address and port number.
Configure SwitchA as the NQA client, configure a threshold for the NQA alarm, and enable the trap function.
- Create a jitter test instance on SwitchA.
Procedure
- Configure an IP address for each interface and ensure reachable routes between switches, as shown in Figure 6-56.
# Configure SwitchA.
<HUAWEI> system-view [HUAWEI] sysname SwitchA [SwitchA] vlan 100 [SwitchA-vlan100] quit [SwitchA] interface gigabitethernet 1/0/1 [SwitchA-GigabitEthernet1/0/1] port link-type hybrid [SwitchA-GigabitEthernet1/0/1] port hybrid pvid vlan 100 [SwitchA-GigabitEthernet1/0/1] port hybrid untagged vlan 100 [SwitchA-GigabitEthernet1/0/1] quit [SwitchA] interface vlanif 100 [SwitchA-Vlanif100] ip address 10.1.1.1 24 [SwitchA-Vlanif100] quit [SwitchA] vlan 120 [SwitchA-vlan120] quit [SwitchA] interface gigabitethernet 1/0/2 [SwitchA-GigabitEthernet1/0/2] port link-type hybrid [SwitchA-GigabitEthernet1/0/2] port hybrid pvid vlan 120 [SwitchA-GigabitEthernet1/0/2] port hybrid untagged vlan 120 [SwitchA-GigabitEthernet1/0/2] quit [SwitchA] interface vlanif 120 [SwitchA-Vlanif120] ip address 10.3.1.1 24 [SwitchA-Vlanif120] quit [SwitchA] ip route-static 10.2.1.0 255.255.255.0 10.1.1.2
# Configure SwitchB.
<HUAWEI> system-view [HUAWEI] sysname SwitchB [SwitchB] vlan 100 [SwitchB-vlan100] quit [SwitchB] vlan 110 [SwitchB-vlan110] quit [SwitchB] interface gigabitethernet 1/0/1 [SwitchB-GigabitEthernet1/0/1] port link-type hybrid [SwitchB-GigabitEthernet1/0/1] port hybrid pvid vlan 100 [SwitchB-GigabitEthernet1/0/1] port hybrid untagged vlan 100 [SwitchB-GigabitEthernet1/0/1] quit [SwitchB] interface vlanif 100 [SwitchB-Vlanif100] ip address 10.1.1.2 24 [SwitchB-Vlanif100] quit [SwitchB] interface gigabitethernet 1/0/2 [SwitchB-GigabitEthernet1/0/2] port link-type hybrid [SwitchB-GigabitEthernet1/0/2] port hybrid pvid vlan 110 [SwitchB-GigabitEthernet1/0/2] port hybrid untagged vlan 110 [SwitchB-GigabitEthernet1/0/2] quit [SwitchB] interface vlanif 110 [SwitchB-Vlanif110] ip address 10.2.1.1 24 [SwitchB-Vlanif110] quit
# Configure SwitchC.
<HUAWEI> system-view [HUAWEI] sysname SwitchC [SwitchC] vlan 110 [SwitchC-vlan110] quit [SwitchC] interface gigabitethernet 1/0/1 [SwitchC-GigabitEthernet1/0/1] port link-type hybrid [SwitchC-GigabitEthernet1/0/1] port hybrid pvid vlan 110 [SwitchC-GigabitEthernet1/0/1] port hybrid untagged vlan 110 [SwitchC-GigabitEthernet1/0/1] quit [SwitchC] interface vlanif 110 [SwitchC-Vlanif110] ip address 10.2.1.2 24 [SwitchC-Vlanif110] quit [SwitchC] ip route-static 10.1.1.0 255.255.255.0 10.2.1.1
- Configure the IP address and port number for monitoring UDP services on SwitchC.
[SwitchC] nqa-server udpecho 10.2.1.2 9000 - Create a jitter test instance on SwitchA.
[SwitchA] nqa test-instance admin jitter [SwitchA-nqa-admin-jitter] test-type jitter [SwitchA-nqa-admin-jitter] destination-address ipv4 10.2.1.2 [SwitchA-nqa-admin-jitter] destination-port 9000
- Set a threshold on SwitchA.
# Configure the RTD threshold on SwitchA.
[SwitchA-nqa-admin-jitter] threshold rtd 20 - Enable the trap function on SwitchA.
[SwitchA-nqa-admin-jitter] send-trap rtd[SwitchA-nqa-admin-jitter] quit - Configure traps to be sent to the NMS.
[SwitchA] snmp-agent sys-info version v2c [SwitchA] snmp-agent community write admin123 [SwitchA] snmp-agent target-host trap address udp-domain 10.3.1.2 params securityname switchA [SwitchA] snmp-agent trap enable
- Start the test instance.
[SwitchA] nqa test-instance admin jitter[SwitchA-nqa-admin-jitter] start now[SwitchA-nqa-admin-jitter] quit - Check the configuration.
# Check NQA test results on SwitchA.
[SwitchA] display nqa results test-instance admin jitter NQA entry(admin, jitter) :testflag is inactive ,testtype is jitter 1 . Test 1 result The test is finished SendProbe:60 ResponseProbe:60 Completion:success RTD OverThresholds number:0 OWD OverThresholds SD number:0 OWD OverThresholds DS number:0 Min/Max/Avg/Sum RTT:2/9/2/133 RTT Square Sum:347 NumOfRTT:60 Drop operation number:0 Operation sequence errors number:0 RTT Stats errors number:0 System busy operation number:0 Operation timeout number:0 Min Positive SD:1 Min Positive DS:1 Max Positive SD:7 Max Positive DS:1 Positive SD Number:8 Positive DS Number:4 Positive SD Sum:14 Positive DS Sum:4 Positive SD Square Sum:56 Positive DS Square Sum:4 Min Negative SD:1 Min Negative DS:1 Max Negative SD:6 Max Negative DS:1 Negative SD Number:9 Negative DS Number:5 Negative SD Sum:14 Negative DS Sum:5 Negative SD Square Sum:44 Negative DS Square Sum:5 Min Delay SD:1 Min Delay DS:0 Avg Delay SD:1 Avg Delay DS:0 Max Delay SD:4 Max Delay DS:4 Delay SD Square Sum:75 Delay DS Square Sum:22 Packet Loss SD:0 Packet Loss DS:0 Packet Loss Unknown:0 Average of Jitter:1 Average of Jitter SD:1 Average of Jitter DS:1 Jitter out value:0.3257526 Jitter in value:0.1015234 NumberOfOWD:60 Packet Loss Ratio: 0% OWD SD Sum:63 OWD DS Sum:10 ICPIF value: 0 MOS-CQ value: 0 TimeStamp unit: ms Packet Rewrite Number: 0 Packet Rewrite Ratio: 0% Packet Disorder Number: 0 Packet Disorder Ratio: 0% Fragment-disorder Number: 0 Fragment-disorder Ratio: 0% Jitter OverThresholds SD number:0 Jitter OverThresholds DS number:0 OverallOverThresholds number:0 Start time: 2014-09-01 10:47:57+08:00 End time: 2014-09-01 10:48:01+08:00# Check whether traps are generated in the trap buffer. (At the same time, the NMS also receives the traps.)
<SwitchA> display trapbufferTrapping buffer configuration and contents : enabled Allowed max buffer size : 1024 Actual buffer size : 256 Channel number : 3 , Channel name : trapbuffer Dropped messages : 0 Overwritten messages : 3363 Current messages : 256 #Nov 15 2012 16:57:21+06:00 SwitchA NQA/4/RTDTHRESHOLD:OID 1.3.6.1.4.1.2011.5.25.111.6.16 NQA entry RTD over threshold. (OwnerIndex=admin, TestName=jitter) #Nov 15 2012 16:57:21+06:00 SwitchA NQA/4/SDTHRESHOLD:OID 1.3.6.1.4.1.2011.5.25.111.6.17 NQA entry OWD-SD over threshold. (OwnerIndex=admin, TestName=jitter) #Nov 15 2012 16:57:21+06:00 SwitchA NQA/4/DSTHRESHOLD:OID 1.3.6.1.4.1.2011.5.25.111.6.18 NQA entry OWD-DS over threshold. (OwnerIndex=admin, TestName=jitter)
Configuration Files
SwitchA configuration file
# sysname SwitchA # vlan batch 100 120 # interface Vlanif100 ip address 10.1.1.1 255.255.255.0 # interface Vlanif120 ip address 10.3.1.1 255.255.255.0 # interface GigabitEthernet1/0/1 port link-type hybrid port hybrid pvid vlan 100 port hybrid untagged vlan 100 # interface GigabitEthernet1/0/2 port link-type hybrid port hybrid pvid vlan 120 port hybrid untagged vlan 120 # ip route-static 10.2.1.0 255.255.255.0 10.1.1.2 # snmp-agent snmp-agent local-engineid 800007DB0300E009877890 snmp-agent community write cipher %^%#BuDX98e.>CF6_w@~U.TW&(2J*r`dw94l@E)TkK%%Zz>5(|/KEJ>]a+Qe&E-S}R/00tDR:8fy,}2LATeI%^%# snmp-agent sys-info version v2c v3 snmp-agent target-host trap address udp-domain 10.3.1.2 params securityname cipher %^%#.VYh22r_VPzZ5m2azPQDYh^9:]r~oIFBl[#Aq95*%^%# snmp-agent trap enable # nqa test-instance admin jitter test-type jitter destination-address ipv4 10.2.1.2 destination-port 9000 threshold rtd 20 send-trap rtd # return
SwitchB configuration file
# sysname SwitchB # vlan batch 100 110 # interface Vlanif100 ip address 10.1.1.2 255.255.255.0 # interface Vlanif110 ip address 10.2.1.1 255.255.255.0 # interface GigabitEthernet1/0/1 port link-type hybrid port hybrid pvid vlan 100 port hybrid untagged vlan 100 # interface GigabitEthernet1/0/2 port link-type hybrid port hybrid pvid vlan 110 port hybrid untagged vlan 110 # return
SwitchC configuration file
# sysname SwitchC # vlan batch 110 # interface Vlanif110 ip address 10.2.1.2 255.255.255.0 # interface GigabitEthernet1/0/1 port link-type hybrid port hybrid pvid vlan 110 port hybrid untagged vlan 110 # nqa-server udpecho 10.2.1.2 9000 # ip route-static 10.1.1.0 255.255.255.0 10.2.1.1 # return