I'm trying to setup traffic shaping on a 1812 to limit
the Internet traffic incoming on a single internal PC.
The IOS version is c181x-adventerprisek9-mz.124-15.T1.bin
access-list 125 remark Limit downloads of my pc
access-list 125 permit ip any host 192.168.13.56
description 8port FastEthernet switch (Fe2 to Fe9)
ip address 192.168.13.254 255.255.255.0
ip access-group 100 in
ip nat inside
ip tcp adjust-mss 1452
traffic-shape group 125 3000000 75000 75000 1000
arp timeout 240
The command "traffic-shape" is correctly accepted and saved in the vlan
interface configuration, but there is no shaping (my PC can still download at
full speed and I want to limit it to 3Mbps)
my-1812#sh traffic-shape statistics
Acc. Queue Packets Bytes Packets Bytes Shaping
I/F List Depth Delayed Delayed Active
Vl1 125 0 11 4462 0 0 no
The rate policer works: changing the "traffic-shape group..." line with
rate-limit output access-group 125 3000000 2048 3072 conform-action continue exceed-action drop
i can have a limit on traffic... but the bandwidth speed is not regular with the policer
and I would like to use GTS.
The same problems arise when using traffic shape in QoS rules applied to Vlan1
and in cisco 871 routers vlan interface.
I'm able to have traffic shaper works correctly when applied to phisical FastEthernet
interfaces (like FastEthernet 0 or 1 in the 1812), but it doesn't work for vlan1
and the command is not accepted on phisical Fastheternet interfaces 2 to 10 of the
What can I do to shape the traffic of my PC ?