Cisco ASR 5500 System Administration Guide

balancer may distribute those packets dynamically and confuse the NTP client. NTP packets are latency and
jitter sensitive. Relaying them through a load balancer can confuse the NTP client and is not a supported
practice.
Verifying the NTP Configuration
Verify the NTP configuration is correct. Enter the following command at the Exec mode prompt:
show ntp associations
The output displays information about all NTP servers. See the output below for an example deploying two
NTP servers.
+----Peer Selection: ( ) - Rejected / No Response
| (x) - False Tick
| (.) - Excess
| (-) - Outlyer
| (+) - Candidate
| (#) - Selected
| (*) - System Peer
| (o) - PPS Peer
v
remote refid st t when poll reach delay offset jitter
==============================================================================
*10.81.254.202 .GPS. 1 u 160 1024 377 21.516 0.019 0.009
The following table describes the parameters output by the show ntp associations command.
Table 2: NTP Parameters
DescriptionColumn Title
List of the current NTP servers. One of these characters precedes each IP address to
show the server's current condition:
•
( ) Rejected/No response
•
X False tick
•
. Excess
•
- Outlyer
•
+ Candidate
•
# Selected
•
* System peer
•
(o) PPS peer
remote
Last reported NTP reference to which the server is synchronizing.refid
NTP server stratum level.st
Communication type: broadcast, multicast, etc.t
Number of seconds since the last contact.when
ASR 5500 System Administration Guide, StarOS Release 21.5
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System Settings
Verifying the NTP Configuration

Cisco ASR 5500 Specifications

General

Brand	Cisco
Model	ASR 5500
Category	Network Router
Language	English