This read-only counter tallies bytes which exceeded this rate limit. This is the byte-volume version of ccarStatFilteredPkts, useful specifically for gauging how much actual bandwidth was involved in the excess traffic, which matters when judging whether the configured rate is simply too conservative for legitimate demand versus catching genuinely abusive traffic. A large value here made up of relatively few filtered packets would point to a handful of large transfers exceeding the rate, rather than many small packets.