I'm setting up a DRTIO master and satellite. Both are Kasli v1.1.

[nix-shell:~/artiq-test]$ cat sinara-systems/brittonlab-kasli-master.json 
 
{
    "target": "kasli",
    "min_artiq_version": "6.0",
    "variant": "brittonlab-kasli-master",
    "hw_rev": "v1.1",
    "base": "master",
    "core_addr": "192.168.1.40",
    "peripherals": [
        {
            "type": "dio",
            "ports": [0],
            "bank_direction_low": "input",
            "bank_direction_high": "output"
        }
   ]
}

[nix-shell:~/artiq-test]$ cat sinara-systems/brittonlab-kasli-satellite.json 
{
    "target": "kasli",
    "min_artiq_version": "6.0",
    "variant": "brittonlab-kasli-satellite",
    "hw_rev": "v1.1",
    "base": "satellite",
    "peripherals": [
        {
            "type": "dio",
            "ports": [0],
            "bank_direction_low": "input",
            "bank_direction_high": "output"
        }
   ]
}


[nix-shell:~/artiq-test]$  python -m artiq.gateware.targets.kasli_generic sinara-systems/brittonlab-kasli-master.json

[nix-shell:~/artiq-test]$  python -m artiq.gateware.targets.kasli_generic sinara-systems/brittonlab-kasli-satellite.json

# Confirm that both Kasli #1 and Kasli #2 can be properly flashed with a master variant of the gateware/firmware. This is a check that the hardware is working properly. 

# connected USB to Kasli #1, Ethernet to SFP0 (192.168.1.40)
[nix-shell:~/artiq-test]$ artiq_flash --srcbuild -d artiq_kasli -V brittonlab-kasli-master
# confirmed that I can ping Kasli #1

# connected USB to Kasli #2, Ethernet to SFP0 (192.168.1.41)
[nix-shell:~/artiq-test]$ artiq_flash --srcbuild -d artiq_kasli -V brittonlab-kasli-master
# confirmed that I can ping Kasli #2
# GOOD: Both Kasli are working properly in master role

# keep USB connected to Kasli #2
[nix-shell:~/artiq-test]$ artiq_flash --srcbuild -d artiq_kasli -V brittonlab-kasli-satellite
# cycle power on Kasli #2

# connect Kasli #1 SFP1 (downstream) to Kasli #2 SFP0 (upstream)
# configure routing table
[nix-shell:~/artiq-test]$ artiq_route rt.bin init
[nix-shell:~/artiq-test]$ artiq_route rt.bin set 0 0
[nix-shell:~/artiq-test]$ artiq_route rt.bin set 1 1 0
[nix-shell:~/artiq-test]$ artiq_route rt.bin show
  0:   0
  1:   1   0
[nix-shell:~/artiq-test]$ artiq_coremgmt -D 192.168.1.40 config write -f routing_table rt.bin 
[nix-shell:~/artiq-test]$ artiq_coremgmt -D 192.168.1.40 reboot

Look at Kasli #1 master log.

[nix-shell:~/artiq-test]$ artiq_coremgmt -D 192.168.1.40 log
[     0.000009s]  INFO(runtime): ARTIQ runtime starting...
[     0.003933s]  INFO(runtime): software ident 7.7614.011f3bdb.beta;brittonlab-kasli-master
[     0.012046s]  INFO(runtime): gateware ident 7.7614.011f3bdb.beta;brittonlab-kasli-master
[     0.020186s]  INFO(runtime): log level set to INFO by default
[     0.025906s]  INFO(runtime): UART log level set to INFO by default
[     0.032290s]  INFO(runtime::rtio_clocking): using internal RTIO clock
[     0.309725s]  INFO(board_artiq::si5324): waiting for Si5324 lock...
[     3.463786s]  INFO(board_artiq::si5324):   ...locked
[     3.494739s]  INFO(runtime): network addresses: MAC=80-1f-12-47-2c-7f IPv4=192.168.1.40 IPv6-LL=fe80::821f:12ff:fe47:2c7f IPv6=no configured address
[     3.512116s]  INFO(board_artiq::drtio_routing): routing table: RoutingTable { 0: 0; 1: 1 0; }
[     3.524637s]  INFO(runtime::mgmt): management interface active
[     3.538953s]  INFO(runtime::session): accepting network sessions
[     3.554368s]  INFO(runtime::session): running startup kernel
[     3.558864s]  INFO(runtime::session): no startup kernel found
[     3.564653s]  INFO(runtime::session): no connection, starting idle kernel
[     3.571506s]  INFO(runtime::session): no idle kernel found
[     3.576888s]  INFO(runtime::rtio_mgt::drtio): [LINK#0] link RX became up, pinging
[     5.554406s]  INFO(runtime::mgmt): new connection from 192.168.1.68:44310
[     7.598641s]  INFO(runtime::mgmt): new connection from 192.168.1.68:44312
[    21.177270s]  INFO(runtime::mgmt): new connection from 192.168.1.68:44314
[    23.768125s] ERROR(runtime::rtio_mgt::drtio): [LINK#0] ping failed
[    23.773096s]  INFO(runtime::rtio_mgt::drtio): [DEST#0] destination is up
[    23.979546s]  INFO(runtime::rtio_mgt::drtio): [LINK#0] link RX became up, pinging
[    28.802686s]  INFO(runtime::mgmt): new connection from 192.168.1.68:44316

Look at Kasli #2 (satellite) UART log.

# look at UART on Kasli #2 (satellite) as it boots
[nix-shell:~/artiq-test]$ artiq_flash -t kasli -V brittonlab-kasli-satellite start; flterm /dev/ttyUSB2
Open On-Chip Debugger 0.10.0-snapshot (2021-04-08-04:15)
Licensed under GNU GPL v2
For bug reports, read
http://openocd.org/doc/doxygen/bugs.html
none separate
adapter speed: 25000 kHz
Info : ftdi: if you experience problems at higher adapter clocks, try the command "ftdi_tdo_sample_edge falling"
Info : clock speed 25000 kHz
Info : JTAG tap: xc7.tap tap/device found: 0x13631093 (mfg: 0x049 (Xilinx), part: 0x3631, ver: 0x1)
Info : gdb server disabled
TEMP 63.17 C
VCCINT 0.991 V
VCCAUX 1.773 V
VCCBRAM 0.995 V
VPVN 0.000 V
VREFP 0.000 V
VREFN 0.000 V
VCCPINT 0.000 V
VCCPAUX 0.000 V
VCCODDR 0.000 V
 
__  __ _ ____         ____ 
|  \/  (_) ___|  ___  / ___|
| |\/| | \___ \ / _ \| |    
| |  | | |___) | (_) | |___ 
|_|  |_|_|____/ \___/ \____|
 
MiSoC Bootloader
Copyright (c) 2017-2021 M-Labs Limited
 
Bootloader CRC passed
Gateware ident 7.7614.011f3bdb.beta;brittonlab-kasli-satellite
Initializing SDRAM...
Read leveling scan:
Module 1:
00000000000011111111111000000000
Module 0:
00000000000011111111110000000000
Read leveling: 17+-5 16+-5 done
SDRAM initialized
Memory test passed
 
Booting from flash...
Starting firmware.
[     0.000004s]  INFO(satman): ARTIQ satellite manager starting...
[     0.005612s]  INFO(satman): software ident 7.7614.011f3bdb.beta;brittonlab-kasli-satellite
[     0.013897s]  INFO(satman): gateware ident 7.7614.011f3bdb.beta;brittonlab-kasli-satellite
[     0.292661s]  INFO(board_artiq::si5324): waiting for Si5324 lock...
[     2.920849s]  INFO(board_artiq::si5324):   ...locked