Hi - We have an ISP network and sell increments of a 10Gb WAN interface to customers.
At the moment we are policing inbound at the edges of our network to rate limuit L2VPN bandwidth and policing inbound and outbound at the egress of out network for IP transit. We had a few problems with our initial policing config in that it was quite brutal and the effect for L2VPN users was that anything over the 50Mb was just getting dropped and their TCP applications were throttling back loads and the perceived bandwidth (by the customer) was much lower than the 50Mb. The policer we used was this.
police 50000000 1500 1500 conform-action transmit exceed-action drop
Having looked at a few other ISP's configs, I can see shapers being used extensively instead of policers. I know the technical differences between the two, but want to know if we should look to implement shaping instead of policing to provide a better experience for the customer whilst still restricting bandwidth?
Also, I can understand the variables used in policers and shapers, but are there some standard fugures that you would use for say 20, 40 and 50 Mb policers as I can imagine just guessing them is not going to work
Many Thanks in advance