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Cisco Bug: CSCvu36324 - vEdge 100m lose IP for a Cellular interface

Last Modified

Sep 03, 2020

Products (1)

  • Cisco vEdge Router

Known Affected Releases

19.2.2

Description (partial)

Symptom:
CELLULAR INFORMATION:

lrgga0613-vedg01# show cellular 

Radio mode                                 LTE
Frequency band                             2
Bandwidth                                  5.0 MHz
Transmit channel                           19175
Receive channel                            1175
Received signal strength indicator, RSSI   -67 dBm
Reference signal receive power, RSRP       -99 dBm, Good
Reference signal receive quality, RSRQ     -19 dB, Poor
Signal-to-noise ratio, SNR                 -1.0 dB, Poor


Data bearer                : LTE
Dormancy state             : Active
Active profile             : 5
Session uptime             : 0:00:01:29

IPv4                       : 
   Assigned address        : 166.130.101.26/30
   Gateway                 : 166.130.101.25
   Primary DNS server      : 166.216.138.41
   Secondary DNS server    : 166.216.138.42


SHOW INTERFACE


blrgga0613-vedg01# show interface | tab

                                          IF      IF      IF                                                                 TCP                                     
                 AF                       ADMIN   OPER    TRACKER  ENCAP                                      SPEED          MSS                 RX        TX        
VPN  INTERFACE   TYPE  IP ADDRESS         STATUS  STATUS  STATUS   TYPE   PORT TYPE  MTU   HWADDR             MBPS   DUPLEX  ADJUST  UPTIME      PACKETS   PACKETS   
---------------------------------------------------------------------------------------------------------------------------------------------------------------------
0    eth1        ipv4  -                  Down    Down    NA       null   service    1500  0e:e3:2e:7f:30:71  -      -       1416    -           0         0         
0    gre1        ipv4  172.17.143.113/30  Up      Down    NA       null   service    1476  a6:82:65:1a:00:00  -      -       1392    -           3734028   2771099   
0    gre2        ipv4  172.17.143.117/30  Up      Down    NA       null   service    1476  a6:82:65:1a:00:00  -      -       1392    -           0         0         
0    ge0/1       ipv4  -                  Down    Down    NA       null   service    1500  80:b7:09:15:49:f1  -      -       1416    -           0         0         
0    ge0/2       ipv4  -                  Up      Up      NA       null   service    1504  80:b7:09:15:49:f2  1000   full    1420    4:00:00:24  0         0         
0    ge0/4       ipv4  -                  Down    Down    NA       null   service    1500  80:b7:09:15:49:f4  -      -       1416    -           0         0         
0    system      ipv4  10.254.100.215/32  Up      Up      NA       null   loopback   1500  00:00:00:00:00:00  10     full    1416    4:00:00:43  0         0         
0    cellular0   ipv4  -                  Up      Up      NA       vlan   transport  1428  80:b7:09:15:49:fe  0      half    1344    0:00:01:58  34080961  33554796  
0    ge0/2.101   ipv4  10.254.51.209/31   Up      Up      NA       vlan   transport  1500  80:b7:09:15:49:f2  1000   full    1416    4:00:00:24  32489789  33486975  
1    ge0/0       ipv4  10.254.49.209/31   Up      Up      NA       null   service    1500  80:b7:09:15:49:f0  1000   full    1416    4:00:00:04  64066     63840     
1    ge0/2.2025  ipv4  10.254.50.209/31   Up      Up      NA       vlan   service    1500  80:b7:09:15:49:f2  1000   full    1416    4:00:00:04  26745701  26506010  
512  ge0/3       ipv4  172.20.209.235/24  Up      Up      NA       null   service    1500  80:b7:09:15:49:f3  1000   full    1416    4:00:00:04  832965    805275    

blrgga0613-vedg01#

Conditions:
upgrade the device from 18.x.x. code to 19.2.2. version

the device shows these logs:

local7.info: May  6 12:42:53 blrgga0613-vedg01 DHCP_CLIENT[1281]: %Viptela-blrgga0613-vedg01-DHCP_CLIENT-6-INFO-1300005: No response for dhcp discover packets for interface cellular0
local7.debug: May  6 12:42:57 blrgga0613-vedg01 FTMD[1270]: ftm_dpi_flow_exp_delete[2928]: calling ftm_dpi_flow_free fromfunction_name: ftm_dpi_flow_exp_delete
local7.debug: May  6 12:43:17 blrgga0613-vedg01 last message repeated 5 times
local7.info: May  6 12:43:23 blrgga0613-vedg01 FTMD[1270]: %Viptela-blrgga0613-vedg01-ftmd-6-INFO-1400002: Notification: 5/6/2020 16:43:23 fib-update severity-level:minor host-name:"blrgga0613-vedg01" system-ip:10.254.100.215 vpn-id:0 address-family-type:ipv6 fib-last-update-time:2020-05-06T12:42:36+00:00 
kern.info: May  6 12:42:50 blrgga0613-vedg01 last message repeated 2 times
local7.info: May  6 12:43:28 blrgga0613-vedg01 DHCP_CLIENT[1281]: %Viptela-blrgga0613-vedg01-DHCP_CLIENT-6-INFO-1300005: No response for dhcp discover packets for interface cellular0
local7.debug: May  6 12:43:41 blrgga0613-vedg01 ZEBRA.512[3444]: RTM_DELROUTE ipv6 unicast proto 
local7.debug: May  6 12:43:57 blrgga0613-vedg01 FTMD[1270]: ftm_dpi_flow_exp_delete[2928]: calling ftm_dpi_flow_free fromfunction_name: ftm_dpi_flow_exp_delete
local7.info: May  6 12:44:03 blrgga0613-vedg01 DHCP_CLIENT[1281]: %Viptela-blrgga0613-vedg01-DHCP_CLIENT-6-INFO-1300005: No response for dhcp discover packets for interface cellular0
local7.debug: May  6 12:44:27 blrgga0613-vedg01 FTMD[1270]: ftm_dpi_flow_exp_delete[2928]: calling ftm_dpi_flow_free fromfunction_name: ftm_dpi_flow_exp_delete
local7.info: May  6 12:44:35 blrgga0613-vedg01 WWAND[1286]: %Viptela-blrgga0613-vedg01-WWAND-6-INFO-2400020: Data session state changed to Disconnected
local7.debug: May  6 12:44:35 blrgga0613-vedg01 WWAND[1286]: wwan_slqs_cb_session_state[618]: Data session state changed to Disconnected  (1008) - inst 0 svc 1 v4 1137948864 v6 0
local7.debug: May  6 12:44:35 blrgga0613-vedg01 WWAND[1286]: wwan_slqs_cb_session_state[626]:  Disconnect reason : Regular PDP context deactivation
local7.info: May  6 12:44:35 blrgga0613-vedg01 WWAND[1286]: %Viptela-blrgga0613-vedg01-WWAND-6-INFO-2400024: Data session disconnect reason: Regular PDP context deactivation
local7.debug: May  6 12:44:35 blrgga0613-vedg01 WWAND[1286]: wwan_slqs_cb_session_state[632]:  Disconnect verbose : 3GPP equivalent ESM(EPS Session Management) cause code value 36
local7.info: May  6 12:44:35 blrgga0613-vedg01 WWAND[1286]: %Viptela-blrgga0613-vedg01-WWAND-6-INFO-2400025: Data session disconnect reason verbose: 3GPP equivalent ESM(EPS Session Management) cause code value 36
local7.debug: May  6 12:44:35 blrgga0613-vedg01 WWAND[1286]: wwan_handle_session_state[1289]: Handle session state - 1 clear and start
local7.info: May  6 12:44:35 blrgga0613-vedg01 WWAND[1286]: %Viptela-blrgga0613-vedg01-WWAND-6-INFO-2400023: Data session disconnect: restarting session
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