System Management
7450 ESS OS Basic System Configuration Guide Page 347
multicast
Syntax multicast [version version] [key-id key-id]
no multicast
Context config>system>time>ntp
Description
This command configures NTP the node to transmit multicast packets on the
CPMCCM MGMT port.
Broadcast and multicast messages can easily be spoofed; authentication is strongly recommended.
The no form of this command removes the multicast address from the configuration.
Parameters version version — Specifies the NTP version number that is generated by this node. This parameter does
not need to be configured when in client mode in which case all three versions are accepted.
Values 2 — 4
Default 4
key-id key-id — Specifies the configured authentication key and authentication type used by this version to
transmit NTP packets. If this command is omitted from the configuration, packets are sent un-
encrypted.
Values 1 — 255
Default None
multicastclient
Syntax multicastclient [authenticate]
no multicastclient
Context config>system>time>ntp
Description
This command configures the node to receive multicast NTP messages on the
CPM MGMT port. If
multicastclient is not configured, received NTP multicast traffic will be ignored. Use the show command to
view the state of the configuration.
The no construct of this message removes the multicast client for the specified interface from the
configuration.
Parameters authenticate — This optional parameter makes authentication a requirement. If authentication is required,
the authentication key-id received must have been configured in the “authentication-key” command,
and that key-id’s type and key value must also match.
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