Artesyn ATCA-8310 Installation and Use (May 2014) - Manual (Page 171)

U-Boot
ATCA-8310 Installation and Use (6806800M72E) 171
6.2.1.3 Network interfaces
The three network interfaces available in U-Boot are:
 FM2@DTSEC0
 DTSEC0 interface on frame manager 2. Connects to VLAN 21 in the Broadcom switch,
which corresponds to the ATCA base interface 1.
 FM2@DTSEC2
 DTSEC2 interface on frame manager 2. Connects to VLAN 21 in the Broadcom switch,
which corresponds to the ATCA base interface 2.
 FM1@TGEC
 10G interface on frame manager 1. The default VLAN on the broadcom switch is 50, which
connects to the DSPs. Additional VLANs are 61 (RTM 10G uplink) and 11/12 (Fabric
interface 1 and 2 respectively).
To select a specific network interface for subsequent network operations, set the "ethact"
variable. To let u-boot assign a default value to ethact, set the "ethprime" variable and save it to
NVRAM.
6.2.1.4 GPP Control
By default, the GPP is held in reset when the blade starts. If the SPP performs a reset cycle, the
GPP will not get reset.