Thursday 31 October 2019

Configuring ZTP on Arista EOS

ZTP
  • CLIs:
    • zerotouch cancel - cancel this time
    • zerotouch disable - distable ztp permanently
    • bash vi /mnt/flash/zerotouch-config
  • DHCPd config:
    • see below
  • Supported version:
    • Fixed - v3.7
    • Chassis - v4.10
  • If no startup-config the switch will default to ZTP, if not disable ZTP, the switch will not function properly.  
  • automatic configuration based on DHCP
    • configure all eth and management ports with "no switchport" to allow DHCP
    • can use dhcpd on the Linux
    • below bootfile can be either config or script
DHCPd config:
option subnet-mask 255.255.255.0
option broadcast-address 192.168.1.255

option routers 192.168.1.1
option domain-name-server 192.168.1.200, 192.168.1.205
option domain-name "gad.net"

subnet 192.168.1.0 netmask 255.255.255.0 {
range 192.168.1.160 192.168.1.167;
}

host Arista1 {
 option dhcp-client-identifier 00:1c:73:08:91:33;
 fixed-address 192.168.1.170
 option bootfile-name "http://www2.gad.net/config/Arista1-ZTP"
}

ZTP Script:
#!/usr/bin/Cli -p2
enable
copy http://<url>/arista1-startup flash:startup-config
copy http://<url>/EOS-4.9.3.swi flash:
config
boot system flash:EOS-4.9.3.swi

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