iv
Configuring HTTP test example···························································································································· 38
Configuring UDP jitter test example ···················································································································· 40
Configuring SNMP test example ························································································································· 43
Configuring TCP test example······························································································································ 44
Configuring UDP echo test example ··················································································································· 45
Configuring voice test example ··························································································································· 47
Configuring DLSw test example··························································································································· 50
Configuring NQA collaboration example·········································································································· 51
Configuring NTP ························································································································································54
NTP applications ··················································································································································· 54
NTP advantages ···················································································································································· 54
How NTP works····················································································································································· 55
NTP message format············································································································································· 56
NTP operation modes ··········································································································································· 57
Multiple instances of NTP····································································································································· 59
NTP configuration task list············································································································································· 60
Configuring the operation modes of NTP ··················································································································· 60
Configuring NTP client/server mode ·················································································································· 60
Configuring the NTP symmetric peers mode······································································································ 61
Configuring NTP broadcast mode ······················································································································ 62
Configuring NTP multicast mode························································································································· 63
Configuring optional parameters of NTP ···················································································································· 63
Specifying the source interface for NTP messages···························································································· 63
Disabling an interface from receiving NTP messages······················································································· 64
Configuring the maximum number of dynamic sessions allowed···································································· 64
Configuring access-control rights ································································································································· 65
Configuration prerequisites ·································································································································· 65
Configuration procedure ······································································································································ 65
Configuring NTP authentication ··································································································································· 65
Configuration prerequisites ·································································································································· 66
Configuration procedure ······································································································································ 66
Displaying and maintaining NTP ································································································································· 67
Configuring NTP examples··········································································································································· 68
Configuring NTP client/server mode example ·································································································· 68
Configuring the NTP symmetric mode example································································································· 69
Configuring NTP broadcast mode example······································································································· 71
Configuring NTP multicast mode example ········································································································· 72
Configuring NTP client/server mode with authentication example································································· 75
Configuring NTP broadcast mode with authentication example ····································································· 76
Configuring MPLS VPN time synchronization in client/server mode example··············································· 78
Configuring MPLS VPN time synchronization in symmetric peers mode example ········································ 80
Configuring IPC··························································································································································82
Enabling IPC performance statistics ····························································································································· 83
Displaying and maintaining IPC··································································································································· 84