Brocade Communications Systems ServerIron ADX 12.4.00 Service Manual download pdf (Page 45)

ServerIron ADX Advanced Server Load Balancing Guide 33

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Chapter

Transparent Cache Switching

TCS Overview

Transparent Cache Switching (TCS) allows a ServerIron ADX to detect and switch web traffic to a

local cache server within the network. A single ServerIron ADX (or hot standby pair) can provide

transparent cache switching for up to 256 web cache servers per cache group.

Cache servers process web queries faster and more efficiently by temporarily storing details about

repetitive web queries locally, reducing the number of external inquiries required to process a web

query. By limiting the number of queries sent to remote web servers, the overall WAN access

capacity required is lessened as is the overall operating cost for WAN access.

Brocade switches increase the reliability of transparent caching within a network by supporting

redundant web cache server configurations known as web cache server groups.

While TCS can be configured to support IPv4 and IPv6 cache servers separately or concurrently,

IPv4 cache servers can only handle IPv4 traffic and IPv6 cache servers can only handle IPv6 traffic.

Suppose you want to use transparent caching within the network to increase the performance of

web queries and lessen the demands on the current WAN access link to the Internet. Refer to

Figure 9.

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Brocade Communications Systems ServerIron ADX 12.4.00 Service Manual Page 45