Nokia 7210 SAS-Mxp - Page 405

7210 SAS-MXP, R6, R12, S, SX, T BASIC SYSTEM
CONFIGURATION GUIDE RELEASE 22.9.R1
System management
Platforms
Supported on all 7210 SAS platforms as described in this document, including platforms configured in the
access-uplink operating mode
Description
Commands in this context configure Network Time Protocol (NTP) and its operation. This protocol defines
a method to accurately distribute and maintain time for network elements. Furthermore this capability
allows for the synchronization of clocks between the various network elements.
The no form of this command stops the execution of NTP and removes its configuration.
authentication-check
Syntax
[no] authentication-check
Context
config>system>time>ntp
Platforms
Supported on all 7210 SAS platforms as described in this document
Description
This command provides the option to skip the rejection of NTP PDUs that do not match the authentication
key ID, type or key requirements. The default behavior when authentication is configured is to reject all
NTP protocol PDUs that have a mismatch in either the authentication key ID, type or key.
When authentication-check is enabled, NTP PDUs are authenticated on receipt. However, mismatches
cause a counter to be increased, one counter for type and one for key ID, one for type, value mismatches.
These counters are visible in a show command.
The no form of this command allows authentication mismatches to be accepted; the counters however are
maintained.
Default
authentication-check — rejects authentication mismatches
authentication-key
Syntax
authentication-key key-id {key key} [hash | hash2] type {des | message-digest}
no authentication-key key-id
Context
config>system>time>ntp
3HE 18197 AAAB TQZZA
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