on page215.)
Navigate to Management > Disciplining, and click the GEAR icon in the top-right corner
of the Status panel.
15.
Set the value Maximum TFOM for Sync to4 (this will make NetClock to go out of sync if
the phase error is greater than 1μs).
16.
Set the value for Holdover Timeout to 10s, to allow NetClock to exit holdover quickly.
17.
Leave the Phase Error Limit at 0, and do not check any of the checkboxes (or, for more
information, see "Configuring the Oscillator" on page215).
2.15.12.5 Configuring Anycast via NTP Expert Mode
Advanced Anycast configuration is possible via the NTP Expert Mode (see also "NTP Expert
Mode" on page133), which allows you to write directly into the Anycast configuration files
(zebra.conf; ospfd.conf; ospf6d.conf and bgpd.conf).
The zebra.conf file is required for both IPv4, and IPv6 Anycast. The ospfd.conf file is
required for IPv4 OSPF only, the ospf6d.conf file is required for IPv6 OSPF only, and the
bgpd.conf file has multiprotocol functionality, hence it can be used for both IPv4, and IPv6
Anycast.
Caution: Expert Mode should only be utilized by advanced users, as incorrectly
altering the Anycast files can cause Anycast to stop working.
Caution: Any configurations made in Expert Mode will be lost as soon as Expert
Mode is disabled.
1.
To access Expert Mode, navigate to MANAGEMENT > NTP Setup.
2.
Enable the switch for Expert Mode in the panel NTP Services.
3.
Once it is enabled, click NTP Anycast in the Actions Panel. The Expert mode window
will appear, with a separate tab for each of the three configuration files.
4.
To enable OSPF IPv4 Anycast, check Enable under the OSPF tab. To enable OSPF IPv6
Anycast, check Enable under the OSPF6 tab. To enable BGP Anycast, check Enable
under the BGP tab. Then click Submit.
When the NTP Anycast Expert Mode window is opened, the files displayed are the con
figuration files in their current states. If no configuration was done outside of Expert Mode,
these will be the factory default files. If Anycast configuration was already done from the Web
UI, you will be able to edit the existing Anycast setup.
When editing zebra.conf in expert mode, you should ensure that the first line under an
interface line is an ip address line declaring an IPv4 address (if there is one for the
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CHAPTER 2 • NetClock User Reference Guide Rev. 16
2.15 Configuring NTP
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