cisoc wan optimisers

cisco8887 · ‎10-22-2015

Hi Guys,

I have read a bit about wan optimiser and trying to make sense of the following from the article below:

http://www.cisco.com/c/en/us/products/collateral/routers/wide-area-application-services-waas-software/solution-overview-c22-732054.html

Target WAN Bandwidth (Mbps) vs Optimized LAN Throughput (Mbps).

Taking 294 to consideration, does this mean a 10-20 mb line can carry an equivelent of 150Mb ?

I know latency plays a role in TCP connections and on maximum tcp window size of 64K without tcp scaling and a 100ms rtt link you can achive about achieve about 6.4Mbps(512000bps/0.100)=5.12

It only needs to connections to send data and saturate the line.

do they do massive compression ?

caching ?

so when cisco claims 10-20mb is 100-150 on Lan, how do they get this?

many thanks

WAVE Platform	WAVE 294	WAVE 594	WAVE 694	WAVE 7541	WAVE 7571	WAVE 8541

Network Location	Small Branch Office	Large Branch Office or Campus	Large Branch Office, Data Center, or Campus	Data Center or Campus	Data Center or Campus	Data Center or Campus
Target WAN Bandwidth (Mbps)	10-20	50-100	200	500	1,000	2,000
Number of Optimized TCP Connections Supported	200-400	750-1,300	2,500-6,000	18,000	60,000	150,000
Optimized LAN Throughput (Mbps)	100-150	250-300	450-500	1,000	2,000	4,000

Joseph W. Doherty · ‎10-23-2015

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Posting

do they do massive compression ?

Often they do.

caching ?

Often they do.

so when cisco claims 10-20mb is 100-150 on Lan, how do they get this?

Often, compression with caching.

The common trick is they often have some kind of token they send across the WAN link that indicates a block of data to be pulled from the local cache.

"Your mileage may vary".