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ASK THE EXPERT - WIDE AREA APPLICATION SERVICES (WAAS)

Welcome to the Cisco Networking Professionals Ask the Expert conversation. This is an opportunity to discuss about Cisco WAAS design, deployment, and troubleshooting, with Cisco expert Zach Seils. Zach, CCIE #7861, is a Technical Leader in the Advanced Services Data Center Networking Practice. His focus is the design, deployment, and troubleshooting of application acceleration solutions for Cisco's largest enterprise and service provider customers. He is also frequently engaged with partners and internal Cisco engineers worldwide to advise on the design, implementation, and troubleshooting of the Cisco Wide Area Application Services solution. In addition to working closely with partners and customers, he works closely with the Application Delivery Business Unit on product enhancements, testing, and application acceleration architectures. Prior to joining Cisco, Seils spent six years in various senior technical roles for a managed service provider.

Remember to use the rating system to let Zach know if you have received an adequate response.

Zach might not be able to answer each question due to the volume expected during this event. Our moderators will post many of the unanswered questions in other discussion forums shortly after the event. This event lasts through December 21, 2007. Visit this forum often to view responses to your questions and the questions of other community members.

101 REPLIES

Re: ASK THE EXPERT - WIDE AREA APPLICATION SERVICES (WAAS)

Where do you see the WAAS NM being most effective?

-brad

www.ccbootcamp.com

(please rate the post if this helps!)

Cisco Employee

Re: ASK THE EXPERT - WIDE AREA APPLICATION SERVICES (WAAS)

Brad,

The NME-WAE is intended for small branch office environments ranging from 5-75 users and single digit Mbps WAN bandwidth.

Thanks,

Zach

Community Member

Re: ASK THE EXPERT - WIDE AREA APPLICATION SERVICES (WAAS)

Hi,

i have two links with different ISP's and both the links (512Kbps)are terminated on seprate seprate cisco routers(2811).Currently we are useing one link and another one link is new.I want to loadsharing and redundency between them.Right now i am not using BGP (routers are configured in simple manner).Here is a my client cost matter,so i want .My presant network seneriois like this:-

Internet Ri(Isp1)-- Layer 3 switch (working here like as a simple switch)---firewall 1 (cisco ASA5510)--firewall 2(ciscoASA5510)---Lan.

on firewall-1 remote and site to site vpn configuered, one dmz.

my lan is in 172.16.1.xx series,dmz in 172.16.4.10, and after 172.16.1.30 is using for desktop ,192.168.x.x is managment ip.

Right now i have one another internet link(512kbps) from different ISP.

So please advise me how can i do that (loadbalancing with redundeny). once i was trying oer but not successfull due to IOs image (c2800nm-ipbasek9-mz.124-11.T.bin)and

ISP's AS.it can be possible through natting,and ACL. or ple give me any idea with OER or any solution.If possible ple send me also sample configuration.

If u want any info ,ple tell me .

Please reply me as soon as possible.

Thanks and regards,

sujeet

Cisco Employee

Re: ASK THE EXPERT - WIDE AREA APPLICATION SERVICES (WAAS)

Sujeet,

This conversation is for discussion of Cisco Wide Area Application Services (WAAS). It sounds like your post would be better suited for the 'WAN, Routing and Switching' conversation. I recommend that you report your question in that forum.

Thanks,

Zach

Community Member

Re: ASK THE EXPERT - WIDE AREA APPLICATION SERVICES (WAAS)

ok Thanks.

Community Member

Re: ASK THE EXPERT - WIDE AREA APPLICATION SERVICES (WAAS)

Dear Zach,

really i am affreied to this problem and i have been wondering for solution from last ten days .I respact your words and understand but right now i have to need you or your team help ,if possible.

I have two links with different ISP's and both the links (512Kbps)are terminated on seprate seprate cisco routers(2811).Currently we are useing one link and another one link is new.I want to loadsharing and redundency between them.Right now i am not using BGP (routers are configured in simple manner).Here is a my client cost matter,so i want .My presant network seneriois like this:-

Internet Ri(Isp1)-- Layer 3 switch (working here like as a simple switch)---firewall 1 (cisco ASA5510)--firewall 2(ciscoASA5510)---Lan.

on firewall-1 remote and site to site vpn configuered, one dmz.

my lan is in 172.16.1.xx series,dmz in 172.16.4.10, and after 172.16.1.30 is using for desktop ,192.168.x.x is managment ip.

Right now i have one another internet link(512kbps) from different ISP.

So please advise me how can i do that (loadbalancing with redundeny). once i was trying oer but not successfull due to IOs image (c2800nm-ipbasek9-mz.124-11.T.bin)and

ISP's AS.it can be possible through natting,and ACL. or ple give me any idea with OER or any solution.If possible ple send me also sample configuration.

Cisco Employee

Re: ASK THE EXPERT - WIDE AREA APPLICATION SERVICES (WAAS)

Sujeet,

This conversation is for discussion of Cisco Wide Area Application Services (WAAS). It sounds like your post would be better suited for the 'WAN, Routing and Switching' conversation. I recommend that you repost your question in that forum.

Thanks,

Zach

Community Member

Re: ASK THE EXPERT - WIDE AREA APPLICATION SERVICES (WAAS)

Dear Zach,

What is the minimum cost of loadbalancer through which we manage two ISP's internet link for middle size network.

Thanks, sujeet

Cisco Employee

Re: ASK THE EXPERT - WIDE AREA APPLICATION SERVICES (WAAS)

Sujeet,

This conversation is for discussion of Cisco Wide Area Application Services (WAAS). It sounds like your post would be better suited for the 'Application Networking' forum. I recommend that you repost your question in that forum.

Thanks,

Zach

Community Member

Re: ASK THE EXPERT - WIDE AREA APPLICATION SERVICES (WAAS)

Dear Zach,

What is the minimum cost of loadbalancer through which we manage two ISP's internet link for middle size network.

Thanks, sujeet

Cisco Employee

Re: ASK THE EXPERT - WIDE AREA APPLICATION SERVICES (WAAS)

Sujeet,

This conversation is for discussion of Cisco Wide Area Application Services (WAAS). It sounds like your post would be better suited for the 'Application Networking' forum. I recommend that you repost your question in that forum.

Thanks,

Zach

Community Member

Re: ASK THE EXPERT - WIDE AREA APPLICATION SERVICES (WAAS)

Hi Zach,

Could you discuss the application of WAS in the context of proprietary applications and real time data feeds. I work for a financial services company and am looking at minimising the footprint of applications that run over our WAN. These applications are proprietary order management systems and communicate over IP. We also have development sites worldwide, they use clearcase for version control, how does WAS help here??

Thanks

Gavin

Cisco Employee

Re: ASK THE EXPERT - WIDE AREA APPLICATION SERVICES (WAAS)

Gavin,

WAAS can enhance throughput and lower bandwidth consumption for any application that leverages TCP as the transport protocol. The level of optimization provided depends on the specific application, and to some extent how the application is deployed.

Obviously it's difficult to gauge the type of optimization you would see with a proprietary application. That being said, we provide some utilities that allow you to replay a packet capture between two hosts, in between which you can enable WAAS. This allows you to test the effect of WAAS on an application in a non-production environment. You can find the tool, called TCP Replay, here:

http://www.cisco.com/cgi-bin/tablebuild.pl/fe_util

For clearcase, WAAS can help reduce bandwidth consumption (on all link types) and improve throughput (on high BDP links). This can improve application response times for operations that involve large volumes of data. In some cases, we have seen compression levels of 50-60%, but this can depend on the deployment.

Regards,

Zach

Community Member

Re: ASK THE EXPERT - WIDE AREA APPLICATION SERVICES (WAAS)

Kindly let me know how should i configure my e1 channelised in cisco 2811 as my other nodes has cisco 1841

Cisco Employee

Re: ASK THE EXPERT - WIDE AREA APPLICATION SERVICES (WAAS)

Preetam,

This conversation is for discussion of Cisco Wide Area Application Services (WAAS). It sounds like your post would be better suited for the 'WAN, Routing and Switching' conversation. I recommend that you report your question in that forum.

Thanks,

Zach

Community Member

Re: ASK THE EXPERT - WIDE AREA APPLICATION SERVICES (WAAS)

Zach

When would you recommend the use of pre-positioning? I have a customer who has a lot of static data on a file server in their brnach offices, would you recommend we preposition the data from the central DC to the remote site or rely on the CIFS accelaration?

Thanks

Matt

Cisco Employee

Re: ASK THE EXPERT - WIDE AREA APPLICATION SERVICES (WAAS)

Matthew,

When I work with client, I usually limit PP to content such as software packages/patches. If you are dealing with a large amount of static data, you can consider running a single PP job at the beginning of the deployment, just to warm the caches.

Thanks,

Zach

Community Member

Re: ASK THE EXPERT - WIDE AREA APPLICATION SERVICES (WAAS)

Zach

Thanks for the information, just another note the customer has large pst files have you any recommendation around whether to pre-position first then rely on cache or pre-postion every day?

Thanks

Matt

Cisco Employee

Re: ASK THE EXPERT - WIDE AREA APPLICATION SERVICES (WAAS)

I should first warn you that Microsoft doesn't recommended storing PST files on a local or remote file server. That being said, many customers do it.

In general the Outlook client doesn't read the entire PST file, but rather only a few byte ranges. The exception to this is when a PST file is searched, at which point the entire file can potentially be read (depending on the search criteria).

I would recommend an initial PP job, and then move forward relying on the on-demand caching functionality. If you find that this doesn't meet the user performance requirements, you can then consider and recurring PP job for PST files.

Zach

Community Member

Re: ASK THE EXPERT - WIDE AREA APPLICATION SERVICES (WAAS)

Hi,

is WIDE AREA APPLICATION SERVICES (WAAS)

a hardware piece?

Re: ASK THE EXPERT - WIDE AREA APPLICATION SERVICES (WAAS)

yes

Community Member

Re: ASK THE EXPERT - WIDE AREA APPLICATION SERVICES (WAAS)

what's its main use? and what about price or part numbers?

are they a series? meaning is there an entry level series, medium and then the most expensive and robust ones?

lastly, will they be a solution for WAN slowness. I mean, I have an office in Texas with 10+ users and they all use 6 or 7 applications which are published via citrix at the main office located in CT.

If I deploy this device, will it help in increasing response time ?

Cisco Employee

Re: ASK THE EXPERT - WIDE AREA APPLICATION SERVICES (WAAS)

Angel,

See my previous post (in response to your original question) for a link to the product information. We also have case studies available, including ones covering Citrix, available at the following location:

http://cisco.com/en/US/products/ps6870/prod_case_studies_list.html

Zach

Community Member

Re: ASK THE EXPERT - WIDE AREA APPLICATION SERVICES (WAAS)

great link... however, sounds like more of a marketing point of view.

can I buy one of these devices and deploy it in my headquarters, where the citrix servers are located, and then expect an increase on the response time for my citrix users who are located at remote branches?

Cisco Employee

Re: ASK THE EXPERT - WIDE AREA APPLICATION SERVICES (WAAS)

Yes, it is possible to improve response time for remote Citrix users. Please see the following white paper:

http://cisco.com/en/US/partner/products/ps6870/products_white_paper0900aecd8051d5ce.shtml

Thanks,

Zach

Community Member

Re: ASK THE EXPERT - WIDE AREA APPLICATION SERVICES (WAAS)

Cisco Employee

Re: ASK THE EXPERT - WIDE AREA APPLICATION SERVICES (WAAS)

Community Member

Re: ASK THE EXPERT - WIDE AREA APPLICATION SERVICES (WAAS)

Zach, a question on WAAS software upgrading.

When upgrading WAE's the software package (all 260Mbyte) is located on a server (i.e. PC - via http or ftp). Can the package be stored on the CM WAE instead and disstributed to its core/edge WAE's. This would be helpful for a Service Provider managing a Cussomers' WAE's

Cisco Employee

Re: ASK THE EXPERT - WIDE AREA APPLICATION SERVICES (WAAS)

Mick,

Yes, this is possible. You can do the following:

1. Enable the FTP service on the CM with the command 'inetd enable ftp'.

2. Create a directory on the CM disk for storing images (ex: 'mkdir images).

3. Connect to the CM using an FTP client and upload the .bin WAAS images to the directory you have created.

4. When you define the image path in the CM, point the CM at itself (ex: at its own IP address).

Zach

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