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ntp时钟同步状态不生效,但是时间已同步成功
<H3CS7610>dis ntp status
Clock status: unsynchronized
Clock stratum: 16
Reference clock ID: none
Clock jitter: 0.000000 s
Stability: 0.000 pps
Clock precision: 2^-23
Root delay: 0.00000 ms
Root dispersion: 0.00000 ms
Reference time: 00000000.00000000 Mon, Jan 1 1900 8:05:52.000
System poll interval: 8 s
1、 查看了ntp会话正常
<H3CS7610>dis ntp sessions
source reference stra reach poll now offset delay disper
********************************************************************************
[25]10.110.96.78 GPS 1 255 64 7 -55180 7.0343 0.9613
Notes: 1 source(master), 2 source(peer), 3 selected, 4 candidate, 5 configured.
Total sessions: 1
2、 ntp的配置正常,可以ping通服务器
<SCYAA_YY04301_1_SNS_SW06_H3CS7610>dis cu | in ntp
clock protocol ntp mdc 1
ntp-service enable
ntp-service source Vlan-interface3800
ntp-service server acl 2015
ntp-service unicast-server 10.110.96.78
<H3CS7610>dis acl 2015
Basic IPv4 ACL 2015, 2 rules,
SPE_NTP
ACL's step is 5, start ID is 0
rule 13000 permit source 10.110.96.78 0 (46162 times matched)
rule 65000 deny
3、 让现场查看debugg信息,时间正常同步
<SCYAA_YY04301_1_SNS_SW05_H3CS7610>*Oct 28 15:39:50:863 2022 SCYAA_YY04301_1_SNS_SW05_H3CS7610 NTP/7/PACKET_SEND: -MDC=1; Flushing packet, 1 items
*Oct 28 15:40:04:185 2022 H3CS7610 NTP/7/PACKET_SEND: -MDC=1;
packet to 10.110.96.78, length: 48
leap: 3, version: 4, mode: 3, vrfindex: 0
stratum: 16, poll: 6, precision: 2^-23
rdel: 0.000, rdsp: 0.961, refid: INIT
reftime: 00000000.00000000 Mon, Jan 1 1900 8:05:52.000
orgtime: e7060573.43da9435 Fri, Oct 28 2022 15:38:27.265
rectime: e7060593.316b2ffd Fri, Oct 28 2022 15:38:59.193
xmttime: e70605d4.2f736179 Fri, Oct 28 2022 15:40:04.185
*Oct 28 15:40:04:193 2022 H3CS7610 NTP/7/PACKET_RECV: -MDC=1;
packet from 10.110.96.78 to 10.110.178.146 on Vlan-interface3800
leap: 0, version: 4, mode: 4, vrfindex: 0
stratum: 1, poll: 6, precision: 2^-16
rdel: 0.000, rdsp: 2.121, refid: GPS
reftime: e70605b3.94f1d3ed Fri, Oct 28 2022 15:39:31.581
orgtime: e70605d4.2f736179 Fri, Oct 28 2022 15:40:04.185
rectime: e70605b4.435f1bef Fri, Oct 28 2022 15:39:32.263
xmttime: e70605b4.436fc158 Fri, Oct 28 2022 15:39:32.263
inptime: e70605d4.316d17dc Fri, Oct 28 2022 15:40:04.193
解决方案:
修改ntp-service 的权限等级。
将ntp-service server acl 2015 修改成 ntp-service peer acl 2015 之后问题解决
原因:
Server权限只允许自己向其他设备同步时间,不允许其他设备修改本机时间