S12508与思科3560对接NTP典型组网配置案例

S12508与思科3560对接NTP典型组网配置，其中S12508为时钟源，思科3560为客户端

S12508版本信息如下：

H3C Comware Platform Software

Comware Software, Version 5.20, Release 1828P05

Copyright (c) 2004-2014 Hangzhou H3C Tech. Co., Ltd. All rights reserved.

H3C S12508 uptime is 58 weeks, 4 days, 15 hours, 32 minutes

Last reboot reason : User reboot

思科3560版本信息如下：

Cisco IOS Software, C3560 Software (C3560-IPSERVICES-M), Version 12.2(35)SE5, RELEASE SOFTWARE (fc1)

Copyright (c) 1986-2007 by Cisco Systems, Inc.

Compiled Thu 19-Jul-07 18:15 by nachen

Image text-base: 0x00003000, data-base: 0x01300000

ROM: Bootstrap program is C3560 boot loader

BOOTLDR: C3560 Boot Loader (C3560-HBOOT-M) Version 12.2(25r)SEE4, RELEASE SOFTWARE (fc1)

WAI-F7-XZC-1 uptime is 31 weeks, 5 days, 17 hours, 24 minutes

System returned to ROM by power-on

System restarted at 23:07:18 china Sun Oct 20 2019

System image file is "flash:c3560-ipservices-mz.122-35.SE5/c3560-ipservices-mz.122-35.SE5.bin"

cisco WS-C3560G-48TS (PowerPC405) processor (revision F0) with 122880K/8184K bytes of memory.

Processor board ID FOC1442Z4FZ

Last reset from power-on

2 Virtual Ethernet interfaces

52 Gigabit Ethernet interfaces

The password-recovery mechanism is enabled.

512K bytes of flash-simulated non-volatile configuration memory.

Base ethernet MAC Address       : B4:14:89:E7:D1:80

Motherboard assembly number     : 73-10214-06

Power supply part number        : 341-0107-01

Motherboard serial number       : FOC14425UBW

Power supply serial number      : AZS143501S4

Model revision number           : F0

Motherboard revision number     : A0

Model number                    : WS-C3560G-48TS-E

System serial number            : FOC1442Z4FZ

Top Assembly Part Number        : 800-27479-03

Top Assembly Revision Number    : A0

Version ID                      : V05

CLEI Code Number                : COMBG10BRA

Hardware Board Revision Number  : 0x09

Switch   Ports  Model              SW Version              SW Image           

------   -----  -----              ----------              ----------         

*    1   52     WS-C3560G-48TS     12.2(35)SE5             C3560-IPSERVICES-M 

Configuration register is 0xF

S12508 NTP时钟源配置信息如下：

ntp-service refclock-master 2

interface Vlan-interface4

 ip address 10.190.4.254 255.255.255.0

 vrrp vrid 4 virtual-ip 10.190.4.1

 vrrp vrid 4 priority 105

 packet-filter 3002 inbound

 packet-filter 3002 outbound

思科3560 NTP配置如下：

ntp server 10.190.9.1

S12508查看NTP显示信息：

dis ntp status

 Clock status: synchronized

 Clock stratum: 2

 Reference clock ID: 127.127.1.0

 Nominal frequency: 100.0000 Hz

 Actual frequency: 100.0000 Hz

 Clock precision: 2^14

 Clock offset: 0.0000 ms

 Root delay: 0.00 ms

 Root dispersion: 43.43 ms

 Peer dispersion: 10.00 ms

 Reference time: 08:26:28.027 UTC May 30 2020(E27C9734.072367E4)

dis ntp sessions

       source          reference       stra reach poll  now offset  delay disper

********************************************************************************

[12345]127.127.1.0     LOCL               1   255   64   44    0.0    0.0    1.0

note: 1 source(master),2 source(peer),3 selected,4 candidate,5 configured

Total associations :  1

思科3560查看NTP显示信息：

sh ntp status

Clock is synchronized, stratum 3, reference is 10.190.9.1

nominal freq is 119.2092 Hz, actual freq is 119.2075 Hz, precision is 2**18

reference time is E27C96FA.5A6B2A48 (16:25:30.353 china Sat May 30 2020)

clock offset is -0.0319 msec, root delay is 0.98 msec

root dispersion is 43.59 msec, peer dispersion is 0.06 msec

sh ntp associations

      address         ref clock     st  when  poll reach  delay  offset    disp

*~10.190.9.1       127.127.1.0       2   479   512  377     1.0   -0.03     0.1

 * master (synced), # master (unsynced), + selected, - candidate, ~ configured