Switching

Hey,

having a problen on QFX-5100  -- The issue is slow arp resolving :

> show arp | match 1.1.1.1

<< nothing >>

but we can successfuly ping the address 1.1.1.1

we're running version : 13.2X51-D35.3

what might be the problem ?

What does QFX5100 config look like?  Is this purely [default] L2?  In that case ARP may not show, only MAC.  What does your output for

show ethernet-switching table

look like?

Hello there,

Is

show arp no-resolve | match 1.1.1.1

- also slow?

Additionally, there is a way not to use "match":

show arp no-resolve hostname 1.1.1.1

- will give You ARP entry for IP address 1.1.1.1

HTH

Thanks

Alex

this is a default setting that is really kind of annoying to me.

if you have confiugred DNS servers then Junos will try to resolve all of the ARP IPs to hostnames, it will eventually timeout and present you the addresses.

If you use "show arp no-resolve" you should get immediate returns on the output.  I wish the no-resolve was the default, and resolve was an option.

will

Hello,

Yes we have tried the "no resolve" statement .. it also takes long time to resolve the MAC .

Sorry that I didn't mentioned that .

Hi,

FYI..

problem solved ..

We've changed the arp timer to 5 minutes :

[edit system arp]
aging-timer minutes;