[j-nsp] M120 : Arp broadcast messages causes irradic behaviour

[joel jaeggli]

On 11/28/12 10:56 PM, Sunil Mayenkar wrote:
> Hello Gentlemen,
>
> Problem faced: When a large broadcast generated by the downstream network(1,00,000Pkts per sec) hits the Juniper gigE interface it causes the node to behave erratically, not allowing remote login, LSPs flap, until the port is shut down.
>
> I understand that a default arp policer is applied on the interface. What is the value of this policer? And whether its a good idea to modify this policer?
The  policer is global and iirc varies by platform and release, you can 
police arp storms to lower per interface limits than the global limits  
which does reduce the likelyhood of the box becoming unusable. I recall 
having to experiment in order to get it right.
> Thanks in advance.
> Sunil Mayenkar
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