Network Configuration

Note: The following section is not valid for P3898 as it has a different switch.

NVIDIA DRIVE? OS 6.0 supports two network configurations named Base and Safety. Base configuration is applicable to standard PCD configuration i.e., AV+L Standard and AV+Q Standard, while Safety is applicable for AV+Q prod, Prod_debug, and prod_debug_extra. These switch configurations are controlled by the AURIX MCU firmware via AURIX command line.

The configuration selection is enabled via AURIX MCU AUTOSAR firmware commands. Commands details:

getnetworkconfig : Get the current network config info
setnetworkconfig <config value>: Sets network config for next MCU boot

Where the <config value> parameter is as below:


Configuration	Value	Max MTU supported (MGBE2-OAK)	PTP support in OAK Switch	Switch Over the air update support
NW_CFG_BASE	0	Up to 16Kbytes	Yes (Refer PTP section)	Yes
NW_CFG_BASE_SAFETY	1	1500 bytes	Bypass (Switch CPU disable)	No

The major difference use cases between NW_CFG_BASE and NW_CFG_BASE_SAFETY are:

Switch CPU & Firmware disabled : NVIDIA switch developemnt firmware only supports AVNU profile. For other profiles like AUTOSAR PTP support, this mode is helpful.
Max MTU size: The max MTU size of OAK switch is reduced to ~1500 to minimize the PTP bypass latency time when switch is not PTP aware.
OTA support: In switch CPU disable mode, switch firmware OTA is N/A as no firmware is running in the switch.

Note: It is important to keep the software in Tegra (Orin) and network configuration setting in Aurix compatible as defined above in table . This has to be done manually and there is no automated way to keep Orin software and Aurix 'setnetworkconfig' in sync/compatible mode. Using a network configuration that does not match the Orin PCT might result in undefined behavior.

P3710 Networking Port Configuration

Networking port configuration is captured below and is common for both networking configurations i.e., NW_CFG_BASE and NW_CFG_BASE_SAFETY.


Node	Controller/Switch Port	Mode & Speed	T1 Role	PHY present	L2 switch forwarding restriction
Tegra	EQOS	1G-BASE-T	NA	Yes	NA
	MGBE-0	10G-BASE-T1	Secondary	Yes	NA
	MGBE-1	10G-BASE-T	NA	Yes	NA
	MGBE-2	5G (XFI)	NA	No	NA
	MGBE-3	10G (XFI)	NA	No	NA
Switch-1 (88Q5072)	P0 (Internal CPU port)	1G	NA	No	No Restriction
	P1	100M-BASE-T1	Primary	Yes (internal)	No Restriction except forwarding to Switch-1 P8
	P2	100M-BASE-T1	Primary	Yes (internal)	No Restriction except forwarding to Switch-1 P8
	P3	100M-BASE-T1	Primary	Yes (internal)	No Restriction except forwarding to Switch-1 P8
	P4	100M-BASE-T1	Primary	Yes (internal)	No Restriction except forwarding to Switch-1 P8
	P5	100M-BASE-T1	Primary	Yes (internal)	No Restriction except forwarding to Switch-1 P8
	P6	100M-BASE-T1	Primary	Yes (internal)	No Restriction except forwarding to Switch-1 P8
	P7	100M-BASE-T1	Primary	Yes (internal)	No Restriction except forwarding to Switch-1 P8
	P8	1G (RGMII)	NA	No	Only to P10
	P9	1G-BASE-T1	Primary	Yes	No Restriction except forwarding to Switch-1 P8
	P10	5G (XFI)	NA	No	No Restriction
	P11	PCIe Gen3 X1	NA	No	No Restriction except forwarding to Switch-1 P8
Switch-2 (88Q6113)	P0 (Internal CPU port)	1G	NA	No	No Restriction
	P1	1G-BASE-T1	Secondary	Yes	No Restriction
	P2	1G-BASE-T1	Secondary	Yes	No Restriction
	P3	1G-BASE-T1	Secondary	Yes	No Restriction
	P4	1G-BASE-T1	Secondary	Yes	No Restriction
	P5	1G-BASE-T1	Secondary	Yes	No Restriction
	P6	SGMII	NA	No	No Restriction
	P7	1G-BASE-T1	Secondary	Yes	No Restriction
	P8	1G-BASE-T1	Secondary	Yes	No Restriction
	P9	1G-BASE-T1	Secondary	Yes	No Restriction
	P10	10G (XFI)	NA	No	No Restriction
	P11	PCIe Gen3 X2	NA	No	No Restriction
Tegra PCIe Ethernet	LAN 7431 controller	1G-BASE-T1	Master	Yes	NA

P3663 Network Port Configuration

Networking port configuration is captured below and its common for both networking configurations i.e., NW_CFG_BASE and NW_CFG_BASE_SAFETY.


Node	Controller/Switch Port	Mode & Speed	T1 Role	PHY present	L2 Routing
Tegra	EQOS	1G-BASE-T1	NA	Yes	NA
	MGBE-0	10G-BASE-T1	Secondary	Yes	NA
	MGBE-2	5G (XFI)	NA	No	NA
Switch-1 (88Q5072)	P0 (Internal CPU port)	1G	NA	No	No Restriction
	P1	100M-BASE-T1	Primary	Yes (internal)	No Restriction except forwarding to Switch-1 P8 (ie, to Aurix)
	P2
	P3
	P4
	P5
	P6
	P7
	P8	1G (RGMII)	NA	No	Only to P10 (ie, Aurix to Tegra)
	P10	5G (XFI)			No Restriction
	P11	PCIe Gen3 X1			No Restriction except forwarding to Switch-1 P8 (ie, to Aurix)
Tegra PCIe Ethernet	LAN 7431 controller	1G-BASE-T1	Primary	Yes	NA

P3898 Network Port Configuration

The p3898 network port configuration is as follows:


Node	Controller/Switch Port	Mode & Speed	T1 Role	PHY present	L2 Routing
Tegra	EQOS	1G (RGMII)	N/A	No	N/A
Switch	P2	100M-BASE-T1	Primary	Yes (internal)	No Restriction except forwarding to Switch P5 (I.e., to AURIX)
	P3
	P4
	P5	1G (RGMII)	N/A	No	Only to P8 (i.e., Aurix to Tegra)
	P8	1G (RGMII)	N/A	No	No restriction
	P0	1G-BASE-T1	Primary	Yes	No Restriction except forwarding to Switch P5 (i.e., to AURIX)
	P6	1G-BASE-T1	Primary	Yes