The router is currently configured to use IRB which is a hybrid process. The problems is that the IRB process is overloaded and is dropping traffic faster than it can process it.
Which NPE is in this router? Basically, the 7200 has underpowered CPUs and if you force it to process switch, then it handles a LOT LESS packets per second than you might think. I expect that your config is forcing process switching rather than fast switching. The only three solutions are A) run less traffic through the 7200 so that process switching can cope B) stop using the feature that forces process switching C) replace the 7200 with a 7300 which will probably not have CPU issues. However, not knowing the specifics of what IRB is doing, I would advise you to test a replacement platform before committing to it. Oh well, maybe 4 solutions. If you are using a weak NPE such as NPE-200 you may be able to get some joy by upgrading to a more powerful one. For instance an NPE-400 should handle roughly twice the load of an NPE-200. --Michael Dillon