What's the difference between “show arp no-resolve” and “show arp” in Juniper?

Question

What's the difference between show arp no-resolve and show arp?

If I add the no-resolve, what's the difference of it?

Answer 1

no-resolve indicates you don't want to do DNS lookups for every IP address in the ARP table:

teun@juniper> show arp ?
Possible completions:
  ...
  no-resolve           Don't attempt to print addresses symbolically

So with no-resolve only see IP adresses, which can be a lot faster when you have a lot of ARP entries.

Answer 2

show arp :display and modify the ARP show ARP noresolve : only display the ARP