Chapter 13. WAN Aggregator QoS Design
This chapter discusses WAN QoS considerations and designs, including the following:
Slow-speed (≤ 768 kbps) WAN link design
Medium-speed (768 kbps to T1/E1 speed) WAN link design
High-speed (> T1/E1 speed) WAN link design
Additionally, these designs are applied to specific Layer 2 WAN media, including the following:
Leased lines
Frame Relay
ATM
ATM-to-Frame Relay Service Interworking
ISDN
A fundamental principle of economics states that the more scarce a resource is the more efficiently it should be managed. In an enterprise network infrastructure, bandwidth is the prime resource and also is the scarcest (and, likewise, most expensive) over the WAN. Therefore, the case for efficient bandwidth optimization using QoS ...
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