The Collaborations Journal

Hello there,

Here is the final part of the first Series of Cisco Expressway – Design overview. In Part 4 we highlight the Design Considerations of Expressway including Service Discovery, Directory Search, and regional and global design. We highlight as well what will be covered in the next parts of the series.

Your feedback on the all series is appreciated as well. What is good and what is need to be mitigated. I really appreciate your feedback.

Also For any question or Enquiry, please Comment.

Thanks

In Part 3 we talk about Cisco Expressway Mobile and Remote Access Licensing and Sizing. How to design a scalable Expressway solution for several organisation sizes. This is an important Part. Enjoy

For any question or Enquiry, please post in the comment here or on Youtube

Thanks

Cisco Collaboration Edge architecture is an umbrella definition of delivering Collaboration services at the Edge of the Enterprise network. Services such as Business to Business (SIP URI), Business to Consumer (Jabber Guest), 3rd Party Video Interoperability, H.323 integration, SIP integration, and Mobile and Remote Access (VPN-Less Access to Client).

In Part 2 we talk about Cisco Expressway Mobile and Remote Access Overview, Features, and Offering difference of UCM- Expressway offering and on VCS-C/Expressway offering.

For any question or enquiry please post in the comment section or send me on UC Journal Blog:
http://ucjournal.net
Abdel-moniem E. REZK

Cisco Collaboration Edge architecture is an umbrella definition of delivering Collaboration services at the Edge of the Enterprise network. Services such as Business to Business (SIP URI), Business to Consumer (Jabber Guest), 3rd Party Video Interoperability, H.323 integration, SIP integration, and Mobile and Remote Access (VPN-Less Access to Client).

In this first Collaborations Tech-Bites,  we introduce the concept of Cisco Collaboration Edge with focusing on Business to Business and Mobile and Remote Access Design overview and considerations. In Part 1 we introduce the Concept of Cisco Collaboration Edge in general and find out what is Collaboration and what is not.

For any question or enquiry please post in the comment section here or on Youtube.

Thanks

Hello All

Today I am launching “Collaboration Tech-Bites”  videos covering series of comprehensive educational tutorial in the Unified Communications and Collaborations technologies, Evolving & Emerging technologies, and products highlights. Basically trying to capture several unique aspects in the industry as far as I can. I am always as well open to your suggestions on future subjects and feedback on any posted video.

First Collaboration Tech-bit will be a comprehensive series of Video covering the Design overview and Design considerations of Cisco Collaboration Edge – Expressway  Technology for Mobile and Remote Access and Business to Business Services. Stay tight

Abdel-moniem E. REZK

Continue reading “A brief journey inside one of the largest Data Centres in the World” →

A very good guide in how to setup Cisco Expressway for Mobile and Remote Access (MRA) in a multi-domain setup.

A good read in the following Link:

http://www.cisco.com/c/en/us/support/docs/unified-communications/expressway-series/117811-configure-vcs-00.html

A very good Article by Terry Slattery on NoJitter Portal. He is arguing about the current network research of speeding up the internet and a trial by some network researchers in Duke and Illinois universities in testing several part of the internet access in Microwave Link access in the effect of this improvement to the general speed of the internet in this part. In this article, Terry is refereeing to the current limitations in TCP/UDP protocol stack in relation to the current used application and also three current used alternative that could be leveraged to mitigate those limitations.

The proposed alternative protocols are:

• Stream Control Transport Protocol (SCTP): that is documented in RFC4960 that clearly describes the limitations in the current TCP/UDP protocols and  how SCTP would address those limitations. In a future Post, we will work through using SCTP along with Session initiation Protocol in WebRTC technology.
• SPDY: which is not an abbreviation but a word-playing of the actual “Speedy” that was a trial from Google to promote high speed web access in which is replaced later by HTTP/2
• Quick UDP for Internet Connection (QUIC): In which Google introduced back in 2013 to the public and with an excellent update back in April 2015 that is used now in the YouTube streaming with a Zero-ms Delay in session transmission eliminating the Three-way handshaking in traditional TCP and provide significant improvement in using TCP over TLS.

How this will shape the future of the Unified Communications Applications and Interactive Voice and Video over IP. Improving the underlying transport protocol will introduce a significant effect on the performance the Collaborations services from interactive immersive Video conferencing to IM and Presence Chat service.

In A future post, we will perform some digging in both SCTP and its WebRTC adaption and QUIC with Youtube and how it can be application to Unified Communications Applications.

Enjoy the Read of the article below:

Speeding up the Internet 

Thanks

Abdel-Moniem E. REZK

A good read about the current state of Unified Communications as a Service by Joseph Williams at UCstartegies.com . He highlights two major aspects in the current offering of UCaaS from vendors and Operators. This includes the lack of  KPIs and the challenge of having a geographical resilient architecture.

The article is  titled A Quick Look at the State of UC as a Service  Enjoy the read.

Abdel-moniem E. REZK