I have about a dozen sites that keep getting memory allocation failures and the router stops routing. The routers are 3700's with an external csu/dsu, I need the external due to verizon framewatch service. Sometimes I cannot even dialin to the router.The logs keep getting memory allocation failures when the problem happens. The problems appears to happen just after an error condition on the t-1. I am probably going to do an ios upgrade to see if that helps but I am not positive. If anyone else has had the problem please let me know what your fix was. Did you find anything solid to tell the telco? Thanks.