Hi, I have planned to replace the Mikrotik R11E-LTE6 cards with a Telit LM940 card for 3 CA aggregation
Tested configurations:
Mikrotik LHGGR-ROS 7.15.3
LM940 card with software 24/01/519
– USB 2.0 configured – AT#USBSWITCH=1 command
- mode configured - 1041 MBIM- AT#USBCFG=2
- FIRMWARE 1 configured – GENERIC AT#FIRMWARE=1
Flags: I - inactive
0 device=“3-0” seller=“Linux 5.6.3 xhci-hcd” name=“xHCI Host Controller”
serial number=“d0058000.usb” vendor-id=“0x1d6b” device-id=“0x0003”
speed=“5000” ports=1 version-USB=“3.00”
1 device=“1-0” seller=“Linux 5.6.3 ehci_hcd” name=“EHCI Host Controller”
serial number=“d005e000.usb” vendor-id=“0x1d6b” device-id=“0x0002”
speed=“480” ports=1 version-USB=“2.00”
2 device=“2-0” seller=“Linux 5.6.3 xhci-hcd” name=“xHCI Host Controller”
serial number=“d0058000.usb” vendor-id=“0x1d6b” device-id=“0x0002”
speed=“480” ports=1 version-USB=“2.00”
3 device=“2-1” seller=“Telit Wireless Solutions” name=“LM940-CP”
serial number=“e0a8f96a” vendor-id=“0x1bc7” device-id=“0x1041” speed=“480”
USB-version=“2.00”
LTE interface invisible
Mikrotik LHGR- ROS 7.15.3
The LM940 card has firmware 24/01/519
– USB 2.0 configured – AT#USBSWITCH=1 command
- mode configured - 1041 MBIM- AT#USBCFG=2
- FIRMWARE 1 configured – GENERIC AT#FIRMWARE=1
Flags: I - inactive
0 device=“3-0” vendor=“Linux 5.6.3 xhci-hcd” name=“xHCI Host Controller”
serial-number=“d0058000.usb” vendor-id=“0x1d6b” device-id=“0x0003”
speed=“5000” ports=1 usb-version=“3.00”
1 device=“1-0” vendor=“Linux 5.6.3 ehci_hcd” name=“EHCI Host Controller”
serial-number=“d005e000.usb” vendor-id=“0x1d6b” device-id=“0x0002”
speed=“480” ports=1 usb-version=“2.00”
2 device=“2-0” vendor=“Linux 5.6.3 xhci-hcd” name=“xHCI Host Controller”
serial-number=“d0058000.usb” vendor-id=“0x1d6b” device-id=“0x0002”
speed=“480” ports=1 usb-version=“2.00”
3 device=“2-1” vendor=“Telit Wireless Solutions” name=“LM940-CP”
serial-number=“e0a8f96a” vendor-id=“0x1bc7” device-id=“0x1041” speed=“480”
usb-version=“2.00”
LTE interface visible - the card works properly and aggregates 3 CA
RBM33G – ROS 7.15.3
The LM940 card has firmware 24/01/519
– configured for USB 2.0 – command AT#USBSWITCH=1
- mode configured - 1041 MBIM- AT#USBCFG=2
- FIRMWARE 1 configured – GENERIC AT#FIRMWARE=1
LTE interface visible - the card works properly
Flags: I - inactive
0 device=“1-0” vendor=“Linux 5.6.3 xhci-hcd” name=“xHCI Host Controller” serial-number=“1e1c0000.xhci”
vendor-id=“0x1d6b” device-id=“0x0002” speed=“480” ports=2 usb-version=“2.00”
1 device=“2-0” vendor=“Linux 5.6.3 xhci-hcd” name=“xHCI Host Controller” serial-number=“1e1c0000.xhci”
vendor-id=“0x1d6b” device-id=“0x0003” speed=“5000” ports=1 usb-version=“3.00”
2 device=“1-2” vendor=“Telit Wireless Solutions” name=“LM940-CP” serial-number=“e0a8f96a” vendor-id=“0x1bc7”
device-id=“0x1041” speed=“480” usb-version=“2.00”
LTE interface visible - the card works properly and aggregates 3 CA
The question is what is the reason that the LTE interface is not visible in LHGGR?