For ExtremeWare basic config

configure snmp sysName "HOSTNAME_you_want"
configure timezone name GMT 480 noautodst

configure vlan default delete ports all

configure dns-client add name-server 8.8.8.8

enable sntp-client
configure sntp-client primary server "tock.stdtime.gov.tw"
configure sntp-client update-interval 16284
configure timezone name GMT 480 noautodst