If you are doing a fresh install of CSM but previously had a different version of CSM installed, then you will need to backup/restore certain switch configurations after the switch has been wiped.
The backup needs to be done before wiping the switch.
This includes:
This configuration will likely vary from site to site. This guide will cover the most common site setup.
You can find the site connections in the SHCD file.
CAN switch cfcanb6s1 - 31 sw-25g01 x3000 u39 - j36
CAN switch cfcanb6s1 - 46 sw-25g02 x3000 u40 - j36
With this information we know that we need to backup the configuration on port 36 on both spine switches.
Log into the switches. Get the configurations of the ports and the default route. Save this output; this will be used after we apply the generated configurations.
show run int 1/1/36
interface 1/1/36
no shutdown
description to:CANswitch_cfcanb6s1-31:from:sw-25g01_x3000u39-j36
ip address 10.101.15.142/30
exit
sw-spine-001(config)# show run | include interface-group
system interface-group 3 speed 10g
show run int 1/1/36
interface 1/1/36
no shutdown
description to:CANswitch_cfcanb6s1-46:from:sw-25g02_x3000u40-j36
ip address 10.101.15.190/30
exit
sw-spine-002(config)# show run | include interface-group
system interface-group 3 speed 10g
show run | include "ip route"
ip route 0.0.0.0/0 10.101.15.141
show run | include "ip route"
ip route 0.0.0.0/0 10.101.15.189
sw-spine-001 [mlag-domain: master] # show run int ethernet 1/16
interface ethernet 1/16 speed 10G force
interface ethernet 1/16 mtu 1500 force
interface ethernet 1/16 no switchport force
interface ethernet 1/16 ip address 10.102.255.10/30 primary
sw-spine-002 [mlag-domain: master] # show run int ethernet 1/16
interface ethernet 1/16 speed 10G force
interface ethernet 1/16 mtu 1500 force
interface ethernet 1/16 no switchport force
interface ethernet 1/16 ip address 10.102.255.86/30 primary
sw-spine-001 [mlag-domain: master] # show run | include "ip route"
ip route 0.0.0.0/0 10.102.3.3 5
ip route 0.0.0.0/0 10.102.255.9
sw-spine-002 [mlag-domain: master] # show run | include "ip route"
ip route 0.0.0.0/0 10.102.3.2 5
ip route 0.0.0.0/0 10.102.255.85
show run | include user
user admin group administrators password ciphertext xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
show running-configuration | grep user
system-user linuxadmin password xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
username admin password xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx role sysadmin priv-lvl 15
sw-spine-001 [standalone: master] # show run | include username
username admin password 7 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
username monitor password 7 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
For more information on SNMP credentials, see Configuring SNMP in CSM and Update Default Air-Cooled BMC and Leaf-BMC Switch SNMP Credentials
Once these credentials are retrieved from Vault, the xxxxxx fields below can be filled in.
show run | include snmp
snmp-server vrf default
snmpv3 user testuser auth md5 auth-pass plaintext xxxxxx priv des priv-pass plaintext xxxxxx
show running-configuration | grep snmp
snmp-server group cray-reds-group 3 noauth read cray-reds-view
snmp-server user xxxxxx cray-reds-group 3 auth md5 xxxxxx priv des xxxxxx
snmp-server view cray-reds-view 1.3.6.1.2 included
sw-spine-001 [mlag-domain: standby] # show running-config | include snmp
snmp-server user testuser v3 capability admin
snmp-server user testuser v3 enable
snmp-server user testuser v3 enable sets
snmp-server user testuser v3 encrypted auth md5 xxxxxx priv des xxxxxx
snmp-server user testuser v3 require-privacy