
iv
Traffic mirroring configuration example ····················································································································111
Traffic mirroring configuration example ···········································································································111
NQA configuration················································································································································· 114
NQA overview ·····························································································································································114
NQA features ······················································································································································114
NQA concepts·····················································································································································116
NQA probe operation procedure ·····················································································································117
NQA configuration task list ········································································································································117
Configuring the NQA server ······································································································································118
Enabling the NQA client·············································································································································118
Creating an NQA test group······································································································································119
Configuring an NQA test group ································································································································119
Configuring ICMP echo tests······························································································································119
Configuring DHCP tests ······································································································································120
Configuring DNS tests ········································································································································121
Configuring FTP tests···········································································································································122
Configuring HTTP tests········································································································································123
Configuring UDP jitter tests·································································································································124
Configuring SNMP tests ·····································································································································126
Configuring TCP tests··········································································································································126
Configuring UDP echo tests································································································································127
Configuring voice tests ·······································································································································128
Configuring DLSw tests ·······································································································································130
Configuring the collaboration function ······················································································································131
Configuring threshold monitoring·······························································································································131
Configuring the NQA statistics collection function···································································································133
Configuring the history records saving function ·······································································································133
Configuring optional parameters for an NQA test group·······················································································134
Configuring a schedule for an NQA test group·······································································································135
Displaying and maintaining NQA·····························································································································136
NQA configuration examples ····································································································································136
ICMP echo test configuration example ·············································································································136
DHCP Test configuration example·····················································································································138
DNS test configuration example························································································································139
FTP test configuration example ··························································································································141
HTTP test configuration example························································································································142
UDP jitter test configuration example ················································································································143
SNMP test configuration example ·····················································································································146
TCP test configuration example ·························································································································147
UDP echo test configuration example ···············································································································149
Voice test configuration example ······················································································································150
DLSw test configuration example·······················································································································153
NQA collaboration configuration example······································································································154
sFlow configuration················································································································································· 157
sFlow overview·····························································································································································157
Introduction to sFlow ···········································································································································157
sFlow operation ···················································································································································157
Configuring sFlow························································································································································158
Configuring the sFlow agent and sFlow collector····························································································158
Configuring flow sampling·································································································································158
Configuring counter sampling····························································································································159
Displaying and maintaining sFlow·····························································································································159
sFlow configuration example······································································································································159