Collaborations Tech-Bites – Cisco Expressway Design Overview and Considerations – Part 2 of 4

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

Collaborations Tech-Bites – Cisco Expressway Design Overview and Considerations – Part 1 of 4

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

Unified Communications and Collaborations Tech-Bites Launch

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

A brief journey inside one of the largest Data Centres in the World

Last week, I had the chance to visit one of the largest Data Centres in the World that is located in Metro-area Atlanta, Georgia as part of a project of a customer’s Data Centre relocation. Being in several large Data Centres in the past makes me say I am really impressed by the huge data footprint, Systems organisation, Access security, and the massive support infrastructure for The Data Centre. This massive facility features its own on-site Georgia Power substation and direct Fibre access to a wide variety of carrier alternatives.

Atlanta2-Supporting

Atlanta1-Supporting
I took the opportunity to take several pictures of one Corridor location in the Data Centre, and it is an endless hall with several doors on the right and left, each is representing a massive Data Centre locations hosting several Carriers and providers.
Huge hall way with Data Centres doors on the right and left each protected by two factor physical access and two doors access to a huge data centres.
IMG_5222
Inside one of the doors

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

A Good read : Cisco Expressway with Multiple Domain setup

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 Good Read: Speeding up the internet

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 – A Quick look at the sate of the UCaaS by Joseph Williams

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

Are you going to Cisco Live 2015 in San Diego this year!

ciccolive2015
Cisco Live is just around the corner and it is in the beautiful San Diego this year. This will be my second attendance to Cisco Live and let me say I am really looking forward to it. If you haven’t attended Cisco Live before, I strongly recommend to do so. Even if you will not attend the full conference, World of Solutions alone worth it.
I will be in Cisco Live attending several Collaboration and Data Centre sessions. Beside working on some on the Walk-in DevOps and walking through the World of Solution. I will be actively tweeting every significant experience during the Event using the twitter handle @moniemrezk to the people out there didn’t have the chance to attend. This would be part of several Tweeting list mentioned by Tom Hollingsworth in the networkingnerd blog.
Cisco Live would be a great opportunity to meet and network . I will be in the CCIE Hall of Fame every day and in several Collaboration sessions. I would be glad to meet and network with you guys. Please drop me a line or a comment to meet.
I will see you guys in Cisco Live
Abdo

Cisco UCM 10.x Licensing Reference

Understanding the Cisco UCM Licensing model 9.x and 10.x is an essential step in the pre-sale and Post-sale process in working with Cisco Collaboration Architecture. By knowing the different types of licensing model and its mapping to users and devices, pricing, quoting, design, and even upgrade decisions would be informative and clearer.

The following two figures can be considered as  a reference in understanding the licensing model for users and devices.

  1. Licenses and Features:
Licensing Picture
Licensing and Features

2. Licenses and Device types/user features associations

Licensings Devices_users