Re: [Xen-users] Linux Traffic Shaping concept for Xen

[Timo Benk <timo.benk@xxxxxx>]

Anand Gupta wrote:
> Would you mind sharing your tc rules / scripts and how you have used
> them to
> shape traffic for domU's ? Will appreciate the help.
> 
> On 1/7/07, Timo Benk <timo.benk@xxxxxx> wrote:
>>
>> why choppy? It works on my side. BTW, no ebtables is needed to achieve
>> traffic shaping. You can stick your tc rules inside Dom0 at the
>> vif-Interfaces of the gateway domain. It is nothing more than tc-magic;-)

You can use the IFB-Device for shaping of the incoming traffic:

(The following tc commands are not tested, but they should give you a
good starting point)

####
## IFB Rules

# modprobe ifb
# tc qdisc add dev eth0 ingress
# tc filter add dev eth0 parent ffff: \
    protocol ip prio 10 u32           \
    match ip dst 0/0 flowid 1:1       \
    action mirred egress redirect dev ifb0

####
## HTB QDiscs

# tc qdisc add dev ifb0 root handle 1:0 htb
# tc class add dev ifb0 parent 1:0 \
    classid 1:1 htb                \
    rate 1mbit mtu 16000 quantum 16000

# tc class add dev ifb0 parent 1:0 \
    classid 1:2 htb                \
    rate 10mbit mtu 16000 quantum 16000

####
## Filter Definitions

# tc filter add dev ifb0 parent 1:0            \
    protocol ip prio 1 u32                     \
    match ip dst 172.17.0.101/32 flowid 1:1

# tc filter add dev ifb0 parent 1:0            \
    protocol ip prio 1 u32                     \
    match ip dst 172.17.0.102/32 flowid 1:2

Greetings,
-timo
-- 
Timo Benk - Jabber ID: fry@xxxxxxxxxxxx - ICQ ID: #414944731
PGP Public Key: http://www.m28s01.vlinux.de/timo_benk_gpg_key.asc


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