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Cisco has brought protocol analysis within a storage network to a new level of capability . Resource management consists of a set of tools designed to manage resources within a system or a fabric that are consumed by users or the devices themselves . Within a normal operating environment , up to four fans can fail before the system is affected . Another important aspect is that as more blade servers ( or blade switches ) are added into the network , the CAM table is flushed for that VLAN leaving the switch to learn the MAC addresses for all devices in that VLAN . At the ingress , the Catalyst 2960 Series also polices to determine whether a packet is in or out of profile , marks to change the classification label , passes through or drops out of profile packets , and queues packets based on classification . Each switch can operate as both a master controller and a forwarding processor . All in all , he is a breath of fresh air for all of us . CiscoWorks network-management software provides management capabilities on a per-port and per-switch basis , providing a common management interface for all Cisco routers , switches , hubs , and other Cisco devices . If an application cannot access its storage , it will experience downtime . Ability to trust the QoS priority settings if an IP phone is present and to disable the trust setting in the event that the IP phone is removed , thereby preventing a malicious user from overriding prioritization policies in the network . Faults within one fabric are contained within a single VSAN and are not propagated to other VSANs . Therefore , the way in which storage is provisioned within a storage subsystem is very important to the overall storage high-availability solution .