Why do Cisco IOS routers hang in the middle of large downloads?

Posted by cjavapro on Server Fault See other posts from Server Fault or by cjavapro
Published on 2010-12-22T19:29:36Z Indexed on 2010/12/22 19:56 UTC
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Filed under:

cisco

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router

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ios

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hang

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large-file-download

After a few years in use. We have seen Cisco 871 and 851 routers that would hang if you had a single download that was more than 100M large. It is intermittent. Sometimes the problem goes away, sometimes it happens on very small downloads (just a 10KB web page). It seems that the just about all the downloads eventually finish, but the bigger the download the longer the hang.

Is there a way to resolve this? (short of router replacement which is what we have been doing)

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