H3C S3600 Series Operation Manual

Also see for H3C S3600 Series: Datasheet Installation manual Command manual Operation manual Operation manual

Contents

H3C S3600 Series Operation Manual Manual pdf 17 page image

Operation Manual – NTPH3C S3600 Series Ethernet Switches-Release 1510 Chapter 1 NTP Configuration1-16[H3C3] ntp-service unicast-peer 3.0.1.33The S3600 Ethernet switch and H3C3 are a pair of peers. H3C3 operates in active peermode, while the S3600 Ethernet switch operates in passive peer mode. Because thestratum level of the local clock of H3C3 is 1, and that of the S3600 Ethernet switch is 3,the S3600 Ethernet switch is synchronized to H3C3.View the status of the S3600 Ethernet switch after synchronization.[S3600] display ntp-service statusClock status: synchronizedClock stratum: 2Reference clock ID: 3.0.1.32Nominal frequency: 60.0002 HzActual frequency: 60.0002 HzClock precision: 2^18Clock offset: 0.0000 msRoot delay: 31.28 msRoot dispersion: 0.08 msPeer dispersion: 27.31 msReference time: 07:07:59.823 UTC Apr 25 2006(C7F8494F.D2E568A5)The output information indicates that the S3600 Ethernet switch is synchronized toH3C3 and the stratum level of its local clock is 2, one level lower than that H3C3.# View the information about the NTP sessions of the S3600 Ethernet switch (you cansee that a connection is established between the S3600 Ethernet switch and H3C3).[S3600] display ntp-service sessionssource reference stra reach poll now offset delay disper**************************************************************************[2]3.0.1.32 LOCL 1 14 64 60 -1.0 0.0 1.6note: 1 source(master),2 source(peer),3 selected,4 candidate,5 configured1.7.3 Configuring NTP Broadcast ModeI. Network requirementsThe local clock of H3C3 is set to the NTP master clock, with a stratum level of 2. NTPpackets are broadcast through Vlan-interface2.Configure S3600-1 and S3600-2 to listen to broadcast packets through their ownVlan-interface2.