| The rate estimator can match on estimated rates as collected by the RATEEST |
| target. It supports matching on absolute bps/pps values, comparing two rate |
| estimators and matching on the difference between two rate estimators. |
| .TP |
| \fB\-\-rateest1\fP \fIname\fP |
| Name of the first rate estimator. |
| .TP |
| \fB\-\-rateest2\fP \fIname\fP |
| Name of the second rate estimator (if difference is to be calculated). |
| .TP |
| \fB\-\-rateest\-delta\fP |
| Compare difference(s) to given rate(s) |
| .TP |
| \fB\-\-rateest1\-bps\fP \fIvalue\fP |
| .TP |
| \fB\-\-rateest2\-bps\fP \fIvalue\fP |
| Compare bytes per second. |
| .TP |
| \fB\-\-rateest1\-pps\fP \fIvalue\fP |
| .TP |
| \fB\-\-rateest2\-pps\fP \fIvalue\fP |
| Compare packets per second. |
| .TP |
| [\fB!\fP] \fB\-\-rateest\-lt\fP |
| Match if rate is less than given rate/estimator. |
| .TP |
| [\fB!\fP] \fB\-\-rateest\-gt\fP |
| Match if rate is greater than given rate/estimator. |
| .TP |
| [\fB!\fP] \fB\-\-rateest\-eq\fP |
| Match if rate is equal to given rate/estimator. |
| .PP |
| Example: This is what can be used to route outgoing data connections from an |
| FTP server over two lines based on the available bandwidth at the time the data |
| connection was started: |
| .PP |
| # Estimate outgoing rates |
| .PP |
| iptables \-t mangle \-A POSTROUTING \-o eth0 \-j RATEEST \-\-rateest\-name eth0 |
| \-\-rateest\-interval 250ms \-\-rateest\-ewma 0.5s |
| .PP |
| iptables \-t mangle \-A POSTROUTING \-o ppp0 \-j RATEEST \-\-rateest\-name ppp0 |
| \-\-rateest\-interval 250ms \-\-rateest\-ewma 0.5s |
| .PP |
| # Mark based on available bandwidth |
| .PP |
| iptables \-t mangle \-A balance \-m conntrack \-\-ctstate NEW \-m helper \-\-helper ftp |
| \-m rateest \-\-rateest\-delta \-\-rateest1 eth0 \-\-rateest\-bps1 2.5mbit \-\-rateest\-gt |
| \-\-rateest2 ppp0 \-\-rateest\-bps2 2mbit \-j CONNMARK \-\-set\-mark 1 |
| .PP |
| iptables \-t mangle \-A balance \-m conntrack \-\-ctstate NEW \-m helper \-\-helper ftp |
| \-m rateest \-\-rateest\-delta \-\-rateest1 ppp0 \-\-rateest\-bps1 2mbit \-\-rateest\-gt |
| \-\-rateest2 eth0 \-\-rateest\-bps2 2.5mbit \-j CONNMARK \-\-set\-mark 2 |
| .PP |
| iptables \-t mangle \-A balance \-j CONNMARK \-\-restore\-mark |