[Enterprise SONiC] Backup/Restore configure Follow

How to backup and restore the configure

• How to backup configure
• Recovery the configure by backup file

Tested model & firmware version:

• Switch model name:
  DCS203 (AS7326-56X)

• Edgecore SONiC version:
  202006.4
  202012.0 ~ 202012.4
  202111.0 ~ 202111.3

Restriction

1. known issue: Wrong alias names in the default configuration with "AS7326-56X".(This issue is fixed in Edgecore-SONiC_20201229_070315_ec202006_101 and above)
   

   admin@sonic:~$ show interfaces status
     Interface            Lanes    Speed    MTU    FEC    Alias    Vlan    Oper    Admin             Type    Asym PFC
   -----------  ---------------  -------  -----  -----  -------  ------  ------  -------  ---------------  ----------
     Ethernet0                3      25G   9100   none   Eth5/3  routed    down       up              N/A         N/A
     Ethernet1                2      25G   9100   none   Eth5/2  routed    down       up              N/A         N/A
     Ethernet2                4      25G   9100   none   Eth5/4  routed    down       up              N/A         N/A
     Ethernet3                8      25G   9100   none   Eth6/4  routed    down       up              N/A         N/A
     Ethernet4                7      25G   9100   none   Eth6/3  routed    down       up              N/A         N/A
     ... 
     omitted
     ...

Relation article

• [Edgecore SONiC] Reset default configure

How to backup configure

Method 1: Backup default configuration "config_db.json" .

 admin@sonic:~$ sudo cp /etc/sonic/config_db.json /etc/sonic/config_db.json.bk

Note. If you do the backup file after installed, it will help you to backup the factory default configuration file.

Method 2: Backup default configuration "config_db.json".

admin@sonic:~$ sudo config save config_db.json.bk
Existing files will be overwritten, continue? [y/N]: y
Running command: /usr/local/bin/sonic-cfggen -d --print-data > config_db.json.bk

After that, the backup configuration will generate in the home directory.

admin@sonic:~$ ls
config_db.json.bk

Recovery the configure by backup file

Step 1. If we want to reset the setting to backup file, replace current config_db.json by backup  configuration file.

admin@sonic:~$ sudo cp /etc/sonic/config_db.json.bk /etc/sonic/config_db.json

Step 2. config reload or power cycle the switch

admin@sonic:~$ sudo config reload -y