creation and troubleshoot LTE in Mist

Owned by Jean-luc KRIKER
Last updated: Apr 20, 2023
5 min read


on MistNAMING CONVENTION:

GUI: lte-0/0/0

CLI:  lte-0-0


lte-0/0/0


lsusb
[root@sn2032220074 ~]# ls /sys/bus/usb/drivers/qmi_wwan/*/net/
[root@sn2032220074 ~]# lsusb
Bus 002 Device 002: ID 1199:9071 Sierra Wireless, Inc. AirPrime MC7455 3G/4G LTE Modem
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
[root@sn2032220074 ~]# 2023/03/06 14:01:03 "/var/tmp/ssr/ssr-running-transformed.json.gz" uploaded to cloud
[  432.498910] IPv6: ADDRCONF(NETDEV_UP): lte-0-0: link is not ready
[  432.505339] IPv6: ADDRCONF(NETDEV_CHANGE): lte-0-0: link becomes ready


[root@sn2032220074 ~]# ls /sys/bus/usb/drivers/qmi_wwan/*/net/
wwp0s21u1i8



show device-interface name lte-0-0 detail

Connection Status: disconnected

RSSI Signal Strength:-92 dBm

Registration Status:not-registered-searching
SNR Signal Strength:N/A
Signal Strength: poor

device details 
admin@node0.90ec7734d5b1# show device-interface name lte-0-0 detail
Mon 2023-03-06 14:24:36 UTC
Retrieving device interface information...

==============================================================
 node0:lte-0-0
==============================================================
 Type:                lte
 Forwarding:          true
 Mode:                host
 MAC Address:         1a:dd:9b:ed:c3:34

 Admin Status:        up
 Operational Status:  down
 Provisional Status:  up
 Redundancy Status:   non-redundant
 Speed:               n/a
 Duplex:              n/a

 in-octets:                       40318
 in-unicast-pkts:                   468
 in-errors:                           0
 out-octets:                     129410
 out-unicast-pkts:                 1922
 out-errors:                       1091

 LTE:
   3GPP Profile List:
       APN:           wap.vodafone.co.uk
       Auth:          none
       PDP type:      ipv4
       index:         1
   Active 3GPP Profile:
     APN:             wap.vodafone.co.uk
     Auth:            none
     PDP type:        ipv4
     index:           1
   Active Band Class: wcdma-2100
   Active Channel:    10564
   Carrier:           N/A
   Connection Status: disconnected
   Current Ipv4 Settings:N/A
   Enabled LTE Bands: 1, 2, 3, 4, 5, 7, 8, 12, 13, 20, 25, 41
   Packet Stats:      N/A
   RSRP Signal Strength:N/A
   RSRQ Signal Strength:N/A
   RSSI Signal Strength:-92 dBm
   Radio Interface:   umts
   Registration Status:not-registered-searching
   SNR Signal Strength:N/A
   Signal Strength:   poor
   conn-status-unknown:14
   failure:
     code:            2001
     last-failure-time:Mon Mar  6 14:24:12 2023
     next-retry-time: Mon Mar  6 14:24:22 2023
     reason:          no-service
     type:            3
   last-conn-status-unknown-time:Mon Mar  6 14:23:34 2023
   lte-card-info:
     band-preference:
       AT&T:
         add-command: !BAND={},"ATT",0,80A
         expected-enabled-bands:2, 4, 12
         login-command:!ENTERCND="A710"
         set-command: !BAND={}
     drivers:
       conflicting:
         cdc_mbim
       valid:
         qmi_wwan
     image-preference:
       auto-setup:    AUTO-SIM
       check-command: !IMPREF?
       set-command:   !IMPREF="{}"
     name:            EM74xx/MC74xx
     product-id:      0x9071
     reset-command:   !RESET
     serial-port:     /dev/ttyUSB2
     usb-mode-setup:
       expected-mode: 0000010D
       login-command: !ENTERCND="A710"
       query-command: !USBCOMP?
       set-command:   !USBCOMP=1,1,10D
     vendor-id:       0x1199
     vendor-name:     Sierra Wireless
   reinit-attempt:    21
   usb-port:          /dev/ttyUSB2
   ICCID:             unavailable

Completed in 2.98 seconds
admin@node0.90ec7734d5b1#