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Juniper EX switch port security best practice

Last Modified: 2015-04-09
I know that there are a lot of port security features, including DIA, dhcp-trusted, examine-dhcp. Do I need to use them all? Is there any information on Juniper switch port security best practice?
Is auto-negotiate the default setting for the access ports? In other words, if I connect a trunk port from another switch to the access port of this switch, will the port becomes a trunk?
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