In this section
This section describes how to configure the external RJ45 time synchronization connector/port on NT SmartNICs.
Static IP address
The PtpIpAddr parameter assigns a static IP address to the Ethernet port.
IPv4 netmask
The PtpNetMask parameter specifies an IPv4 netmask to the Ethernet port.
IPv4 gateway
The PtpGw parameter specifies an IPv4 gateway in unicast mode to the Ethernet port.
DHCP assignment
VLAN ID
The PtpVlanId parameter assigns a VLAN ID to all packets transmitted from the Ethernet port. VLAN-tagged packets that are received by the port are only accepted if the VLAN tag is equal to the PtpVlanId value. Packets that are not VLAN-tagged are accepted regardless of the PtpVlanId value. The reason for this is that VLAN tags are often removed by routing devices. PtpVlanId applies to both layer 2 and IPv4/UDP communication protocols. The value 0 corresponds to no VLAN ID.
VLAN priority
The PtpVlanPrio parameter only applies when the PtpVlanId parameter (see VLAN ID) is not set to 0. It specifies a priority that is assigned to all packets transmitted from the Ethernet port. The VLAN priority on received packets is ignored. PtpVlanPrio applies to both layer 2 and IPv4/UDP communication protocols The value 0 corresponds to no VLAN priority.
ntservice.ini code line
The syntax for the ntservice.ini code line configuring the PTP clock is:
'PtpIpAddr' '=' <IP address> 'PtpNetMask' '=' <IP address> 'PtpGw' '=' <IP address> 'PtpDhcp' '=' ( 'DISABLE' | 'ENABLE' ) 'PtpVlanId' '=' ( '0' | '1' | '2' | ... | '4095' ) 'PtpVlanPrio' '=' ( '0' | '1' | '2' | ... | '7' )
Example:
PtpIpAddr=192.168.1.2 PtpNetMask=255.255.0.0 PtpGw=192.168.1.1 PtpDhcp=DISABLE PtpVlanId=10 PtpVlanPrio=4
Default values
This table shows the default values.
| Parameter | Default Value |
|---|---|
| PtpIpAddr | 192.168.0.2 |
| PtpNetMask | 255.255.255.0 |
| PtpGw | 192.168.0.1 |
| PtpDhcp | ENABLE |
| PtpVlanId | 0 |
| PtpVlanPrio | 0 |