You do not tell us what model of router this is and knowing that might be helpful. I see from your config that on this interface you are doing:
- frame relay which takes a small amount of bandwidth for overhead traffic such as LMI
- access list filtering on traffic through the interface
- ip inspect to dynamically track and control traffic through the interface
- address translation
- crypto processing (encryption) of traffic through the interface
Each of these things puts some load on the router. It is possible that the combined load is slowing things down. If your access list has some lines that include the "log" parameter that could impose additional load on the router. Perhaps it would be helpful if you would post the output of show proc cpu hist
Besides the issue Rick noted, you didn't note whether there are inteface drops.
As to users complaining about slowness, very common with most WAN links (especially if users are used to LAN perfomance).
As to your bandwidth meter only showing 200-500 Kbps, is that all traffic or one flow? If the latter, could be just what's available on the link when you measure.
There are many other issues to consider. One that often arises, is FIFO queuing impact to traffic when there's congestion (I see FQ is disabled). If this is an Internet connection, what's the ISP doing on their side? What's interface load look like?
There may be other aspects to think about that could help explain these symptoms. Is it possible that there could be something between the router and the LAN that might be a bottle neck, such as a duplex mismatch, or a faulty cable that could be corrupting packets and requiring retransmission?
In other locations that are seeing full T1 bandwidth are they also 1720 routers?
as previously mentioned by others rather than using bandwidth meters better you can ask some ftp access form your upstream provider and monitor the bandwidth. Because you ISP should provide the guarantee.
We are pleased to announce availability of Beta software for 16.6.3.
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