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If you decide to integrate IBM technology onto a
multiprotocol network, the biggest concern of those responsible for
delivering IBM application support is that they will lose the
ability to guarantee response times. Typically, SNA applications
have predictable low bandwidth consumption, whereas TCP/IP protocols
are typified by bursts of traffic, often generating a need for high
bandwidth availability. To alleviate these fears, Cisco implemented
priority output
queuing, which
enables network administrators to prioritize traffic based upon
protocol, message size, physical interface, or SNA device. If this
mechanism is deemed inadequate, Cisco's custom queuing allows
specific bandwidth to be allocated to different types of traffic, in
effect providing separate channels on the one link for the different
types of traffic carried. |
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