This section describes WAN-optimized transactions as delivered through Cisco WAAS or Riverbed Steelhead, and helps you to interpret data for optimized transactions shown in the management console reports on the Optimization page.
WAN-optimization solutions consist of an optimization device on either side of a WAN. The WAN-optimization devices optimize the TCP connection between a client and server by breaking a single TCP connection into these three segments:
WAN-optimization data is available for the three TCP segments created by the WAN-optimization solution. Because it is now monitoring from multiple monitoring points for a single optimized application-server-network combination, the management console generates a separate set of metrics for each of the three segments and treats each set as a separate application. Application behavior along all three segments is analogous to that of a three-tier application with the source and destination ports and addresses remaining the same throughout the tiers. The Optimization page of the management console shows data for WAN-optimized transactions.
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