Scenario:
A S5700 switch is configured to synchronize with 3 NTP servers. In the logs it can be observed that the switch is frequently changing the NTP server and a big number of NTP/4/PEER_SELE logs are occupying the logbuffer memory.
Logs:
Nov 7 2016 05:24:48+11:00DST S5700 %%01NTP/4/PEER_SELE(l)[20]:The peer selected by the system is xx.xx.65.254.
Nov 7 2016 03:26:33+11:00DST S5700 %%01NTP/4/PEER_SELE(l)[21]:The peer selected by the system is xx.xx.140.38.
Nov 7 2016 02:53:10+11:00DST S5700 %%01NTP/4/PEER_SELE(l)[22]:The peer selected by the system is xx.xx.129.130.
Configuration :
ntp-service source-interface Vlanif1
ntp-service unicast-server xx.xx.129.130 authentication-keyid 1
ntp-service unicast-server xx.xx.140.38 authentication-keyid 1
ntp-service unicast-server xx.xx.65.254 authentication-keyid 1