Given that an explicit burst size value was not specified, the policer’s burst tolerance is set to the recommended value for a low-speed interface, which is ten times the interface’s MTU. For a high-speed interface, such as an OC-192, the recommended burst size is the transmit rate of the interface times 3–5 milliseconds.
juniper@LAB# set firewall policer width if-exceeding burst-size-limit ?
Possible completions:
<burst-size-limit> Burst size limit (1500..100000000000 bytes)
低速鏈路上，使用10倍的的MTU
高速鏈路，如10G鏈路，則使用3-5倍的毫秒速率
OC192=10Gbps=10mbits/ms
3X10mbits per millisends=30mbits/ms，需要更改單位爲bytes? ?=3750k