Hi all,
Can anybody explain me the logic how the meter drops packet in a software
switch? I am not able to understand the below code snippet. Please help.
static bool
consume_tokens(struct ofl_meter_band_stats *band, uint16_t meter_flag,
struct packet *pkt){
if(meter_flag & OFPMF_KBPS){
uint32_t pkt_size = (pkt->buffer->size*8)/1024;
if (band->tokens >= pkt_size) {
band->tokens -= pkt_size;
return true;
} else {
return false;
}
}
else if(meter_flag & OFPMF_PKTPS) {
if (band->tokens >= 1000) {
band->tokens -= 1000;
return true;
} else {
return false;
}
}
return false;
}
-> What are band->tokens? I am not able to find them in the code.
-> What is the significance of 1000?
--
*Regards,*
*Purnima*
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