[cisco-nas] Problems with rate-limit

[Richard Greasley]

Hello all,
We have a problem with rate-limiting on our cisco 7204VXT running IOS
12.2(7a).
The problem is that I'm seeing  packet loss on this FastEthernet link.
I did a standard cisco ping (not extended) and I was getting 96-97% success
rate, when I did an extended ping with settings:
fate#ping
Protocol [ip]:
Target IP address: xxx.xxx.xxx.xxx
Repeat count [5]: 1000
Datagram size [100]: 1428
Timeout in seconds [2]: 1
Extended commands [n]: y
Source address or interface:
Type of service [0]:
Set DF bit in IP header? [no]:
Validate reply data? [no]: yes
Data pattern [0xABCD]:
Loose, Strict, Record, Timestamp, Verbose[none]:
Sweep range of sizes [n]: y
Sweep min size [36]:
Sweep max size [18024]:
Sweep interval [1]:
Type escape sequence to abort.
Sending 17989000, [36..18024]-byte ICMP Echos to xxx.xxx.xxx.xxx, timeout is
1 seconds: Reply data will be validated

I got 81-83% success rate

The interface settings are:
interface FastEthernet0/0.135
 description UNDP IP Circuit, Ip block xxx.xxx.xxx.xxx (255.255.255.224)
 encapsulation dot1Q 135
 ip address xxx.xxx.xxx.xxx 255.255.255.224
 ip accounting mac-address input
 ip accounting mac-address output
 rate-limit input 256000 8000 12000 conform-action transmit exceed-action
drop
 rate-limit output 256000 80000 12000 conform-action transmit exceed-action
drop

When I remove the rate-limiting from the interface, both extended and
regular, pings go through without any problems whatsoever, the customer is
not using the circuit as yet.
When I put back on rate-limiting and I did some ftp download tests from my
end I saw that I was not getting even 16KB/s, removed the rate-limit and I
was getting close to 6000KB/s.
Anyone saw anything similar and/or have a solution to this?

Thanks,
Richardg;