beautypg.com
ii
ICMP echo operation configuration example ···································································································· 34
DHCP operation configuration example ············································································································· 36
DNS operation configuration example ··············································································································· 37
FTP operation configuration example ················································································································· 38
HTTP operation configuration example ··············································································································· 39
UDP jitter operation configuration example ······································································································· 40
SNMP operation configuration example ············································································································ 43
TCP operation configuration example ················································································································ 44
UDP echo operation configuration example ······································································································ 45
Voice operation configuration example ············································································································· 46
DLSw operation configuration example ·············································································································· 49
Path jitter operation configuration example ······································································································· 50
NQA collaboration configuration example········································································································ 52
ICMP template configuration example ················································································································ 54
DNS template configuration example ················································································································· 55
TCP template configuration example ·················································································································· 56
HTTP template configuration example ················································································································· 56
FTP template configuration example ··················································································································· 57
Configuring NTP ························································································································································ 59
Overview ········································································································································································· 59
How NTP works ····················································································································································· 59
NTP architecture ···················································································································································· 60
Association modes ················································································································································ 61
NTP security ··························································································································································· 63
NTP for MPLS VPNs ·············································································································································· 64
Protocols and standards ······································································································································· 64
Configuration restrictions and guidelines ···················································································································· 64
Configuration task list ···················································································································································· 65
Enabling the NTP service ·············································································································································· 65
Configuring NTP association modes ···························································································································· 65
Configuring NTP in client/server mode ·············································································································· 65
Configuring NTP in symmetric active/passive mode ························································································ 66
Configuring NTP in broadcast mode ·················································································································· 67
Configuring NTP in multicast mode ····················································································································· 68
Configuring access control rights ································································································································· 69
Configuring NTP authentication ··································································································································· 69
Configuring NTP authentication in client/server mode ····················································································· 69
Configuring NTP authentication in symmetric active/passive mode ······························································· 71
Configuring NTP authentication in broadcast mode ························································································· 73
Configuring NTP authentication in multicast mode ··························································································· 75
Configuring NTP optional parameters ························································································································· 77
Specifying the source interface for NTP messages ···························································································· 77
Disabling an interface from receiving NTP messages ······················································································· 78
Configuring the maximum number of dynamic associations ············································································ 78
Configuring a DSCP value for NTP packets ······································································································· 79
Configuring the local clock as a reference source ····································································································· 79
Displaying and maintaining NTP ································································································································· 80
NTP client/server mode configuration example ········································································································· 80
IPv6 NTP client/server mode configuration example ································································································· 81
NTP symmetric active/passive mode configuration example ··················································································· 82
IPv6 NTP symmetric active/passive mode configuration example ··········································································· 84
NTP broadcast mode configuration example ············································································································· 86
NTP multicast mode configuration example ················································································································ 88
IPv6 NTP multicast mode configuration example ······································································································· 91
