NE40 connects router of other corporations (Z corporation and C corporation) through CPOS interface, there is great loss when interconnected address of NE40 is pinged on router of other corporations(the packet is larger than 800 BYTES).
Check dropped amount of leaky bucket with DISPLAY SYSTEM-BUCKET command. It is found that the loss in No. 31 leaky bucket is increasing and the size of leaky bucket channel is 16K. Change the channel as 64K and there is no loss. The problem is solved.
The channle of No. 31 leaky bucket (ICMP packet with destination address as gateway. The typical one is ping.) is too small and there is loss.
Small channel of leaky bucket can better prevent attack. Not change it too large.