  To cope with the ongoing changing demands of the internet, 'in-network
caching' has been presented as an application solution for two decades. With
the advent of information-centric network (ICN) architecture, 'in-network
caching' becomes a network level solution. Some unique features of ICNs, e.g.,
rapidly changing cache states, higher request arrival rates, smaller cache
sizes, and other factors, impose diverse requirements on the content eviction
policies. In particular, eviction policies should be fast and lightweight. In
this study, we propose cache replication and eviction schemes, Conditional
Leave Cope Everywhere (CLCE) and Least Frequent Recently Used (LFRU), which are
well suited for the ICN type of cache networks (CNs). The CLCE replication
scheme reduces the redundant caching of contents; hence improves the cache
space utilization. LFRU approximates the Least Frequently Used (LFU) scheme
coupled with the Least Recently Used (LRU) scheme and is practically
implementable for rapidly changing cache networks like ICNs.
