2.15.12.5 Configuring Anycast Via Ntp Expert Mode - Safran SecureSync 2400 User Manual

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
Anycast configuration files (zebra.conf; ospfd.conf; ospf6d.conf and bgp-
d.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.
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2 SecureSync 2400 User Manual Rev. 5.2
14. Next, specify the maximum
Holdover Timeout
accuracy "tolerance window": A small window will cause SecureSync to
deliver a more accurate time window, but also will cause it to quickly with-
draw from the Anycast server pool, i.e. declare itself an invalid reference.
(For more information about TFOM, see
page 252.)
Navigate to Management
top-right corner of the
15. Set the value Maximum TFOM for Sync
go out of sync if the phase error is greater than 1μs).
16. Set the value for
holdover quickly.
17. Leave the Phase Error Limit
(or, for more information, see
Caution: Expert Mode should only be utilized by advanced users, as
incorrectly altering the Anycast files can cause Anycast to stop work-
ing.
Caution: Any configurations made in Expert Mode will be lost as
soon as Expert Mode is disabled.
1. To access Expert Mode, navigate to
2. Enable the switch for Expert Mode in the panel
TFOM Setting
value. These two parameters determine SecureSync's
> Disciplining, and click the GEAR icon in the
Status panel.
Holdover Timeout to 10 s, to allow SecureSync to exit
at 0, and do not check any of the checkboxes
"Configuring the Oscillator" on
page 146), which allows you to write directly into the
MANAGEMENT > NTP
2.15 Configure NTP
(Time Figure of Merit), and the
"Configuring the Oscillator" on
to 4 (this will make SecureSync to
Setup.
NTP Services.
page 252).
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