Hi,All
I am using iproute2 to manage bandwith for ADSL router.High,medium,low
priority are needed for different protocol port on the ADSL's upstream side,as
following:
LAN --- |ADSL Router|------WAN
When there aren't traffic on the specific priority, its bandwidth should be
borrowed by other priorities.But it doesn't work.Here is my script:
/usr/sbin/tc qdisc del dev nas0 root
/usr/sbin/tc qdisc del dev br0 root
/usr/sbin/tc qdisc add dev nas0 root handle 1:0 cbq bandwidth 1024kbit avpkt
1000 cell 8
/usr/sbin/tc class add dev nas0 parent 1:0 classid 1:1 cbq bandwidth 1024kbit
rate 1024kbit weight 1024kbit prio 0 allot 1514 cell 8 maxburst 20 avpkt 1000 isolated
bounded
/usr/sbin/tc class add dev nas0 parent 1:1 classid 1:2 cbq bandwidth 1024kbit
rate 611kbit weight 611kbit prio 1 allot 1514 cell 8 maxburst 20 avpkt 1000
/usr/sbin/tc class add dev nas0 parent 1:1 classid 1:3 cbq bandwidth 1024kbit
rate 305kbit weight 305kbit prio 3 allot 1514 cell 8 maxburst 20 avpkt 1000
/usr/sbin/tc class add dev nas0 parent 1:1 classid 1:4 cbq bandwidth 1024kbit
rate 103kbit weight 103kbit prio 5 allot 1514 cell 8 maxburst 20 avpkt 1000
/usr/sbin/tc class add dev nas0 parent 1:1 classid 1:5 cbq bandwidth 1024kbit
rate 5kbit weight 5kbit prio 8 allot 1514 cell 8 maxburst 20 avpkt 1000
class 1:1 is root class;class 1:2 is for high priority;class 1:3 is for
medium priority,class 1:4 is for low priority,class 1:5 is for other traffic.When I
use "bounded" in subclass 1:2,1:3,1:4,1:5,each rate can be assured in each class,but
can't borrow.When I use "isolated" in every subclass,the result isn't expected.
How should I do for "when no traffic on the specific priority,its bandwidth
can be borrowed by other traffic"? Thank you very much!
Regards.
swcims
[EMAIL PROTECTED]
2004-05-25
