June 2003
Intermediate to advanced
432 pages
15h 56m
English
book
Cisco Catalyst QoS: Quality of Service in Campus Networks
by Mike Flannagan - CCIE® No. 7651, Richard Froom - CCIE No. 5102, Kevin Turek - CCIE No. 7284
Content preview from Cisco Catalyst QoS: Quality of Service in Campus Networks
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32 Chapter 2: End-to-End QoS: Quality of Service at Layer 3 and Layer 2
• LAN-to-WAN connections—When traffic is flowing from a LAN, where bandwidth
is typically at least 10 Mbps, to a WAN, where bandwidth is typically less than 10
Mbps, the possibility of congestion is very real.
• Aggregation—When several links are aggregated and their traffic transmitted over a
single link, the possibility exists that a situation may cause congestion. If ten 10-Mbps
links were being aggregated into a Gigabit Ethernet connection, congestion would not
be possible, because the single link’s bandwidth would exceed that of the aggregated
links. However, it is more ...
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