Hello,
I have some questions about prio queue discipline, hope somebody can
clear things up. I can't find good docs about it anywehere...
1) How does mapping works? For example, in this command
tc qdisc add dev ppp0 parent 2:1 handle 1: prio \
bands 3 priomap 1 2 2 2 1 2 0 0 1 1 1 1 1 1 1 1
Does this mean I have 16 priorities mapped this way?
Priority BAND
1 -> 1
2 -> 2
3 -> 2
4 -> 2
5 -> 1
6 -> 2
7 -> 0
8 -> 0
9 -> 1
10 -> 1
11 -> 1
12 -> 1
13 -> 1
14 -> 1
15 -> 1
16 -> 1
2) On my local network, I want the machine 192.168.1.1 to have the
highest priority for every tcp/udp connection, and the 192.168.1.4 the
lowest, would the following setup correct?
tc qdisc add dev ppp0 root handle 10: prio
tc filter add dev ppp0 parent 10:0 protocol ip prio 16 u32 match ip src
192.168.1.4
tc filter add dev ppp0 parent 10:0 protocol ip prio 0 u32 match ip src
192.168.1.1
I also use ip tables to masq local machines on my DialUP linux machine,
like this:
iptables -t nat -A POSTROUTING -o ppp0 -j MASQUERADE
I beleive the queueing is done before the packet is sent to the ppp0
interface, so I could use src 192.168.1.XX as u32 classifier, and after
that the masquerading is applied,so my rules will be matched, is that
correct?
(I use 2.4 kernel)
Thanks in advance
Nikolai
