Abhilash Verma

Director of Product Management for Cloud Networking Group. Looking after NetScaler and ecosystem products and working with global customers. With Citrix from over 9 years in NetScaler group and spent time in various engineering and externally focused roles.
  1. NetScaler Cluster – How the New IP Sub System Works

    Couple months back I wrote an introductory blog on NetScaler Cluster (http://blogs.citrix.com/2013/09/12/netscaler-cluster-the-way-ahead/) and always wanted to follow up with more blogs and data around this awesome technology and architecture. As we see more and more customers moving towards Cluster adoption, here is the next level data on important concepts.   NetScaler has couple important types of IP addressing schemes in the system. As a NetScaler user I ...

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  2. The Grand Party at Mobile World Congress 2014

    Last week was pretty busy with Citrix’s participation at Mobile World Congress, Barcelona. This is one of the largest events worldwide and would not be wrong to say that 100s of Indian marriages were happening at same place and same time :)   Now you have an idea about the crowd and kiosks one had to go through every day. Great thing about this event is that ...

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  3. Master Wizard – Let Us Learn The Magic Behind

    Last blog (http://blogs.citrix.com/2013/09/20/master-wizard-reducing-deployment-time-from-weeks-to-hours/) introduced the Master Wizard and I believe you had exciting start and now you want to know more about the magic happening behind the scene. Let us go through the logical flow of wizard and see what is getting done smartly.   The wizard starts with selection of the topology where you just see one… then why select? That’s an indication that more will ...

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  4. Master Wizard – Reducing Deployment Time from Weeks to Hours

    NetScaler is the de-facto ADC standard for XenApp and XenDesktop deployments. There are several NetScaler features which add great value to the VDI deployments. End users most of the time are either not aware of the value add or are not familiar with the configuration and workflow. In majority of cases NetScaler Gateway feature is used for secure remote connectivity followed by load balancing of core components. ...

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  5. NetScaler Cluster – The Way Ahead

    Let us start with the question "How are you deploying your NetScaler?".   NetScaler has come through a long way of being a Kernel based Packet Engine to user mode Multi Core (nCore) platform and today you can Cluster these nCore devices together. All flavors of NetScaler (VPX, MPX and VPX over SDX) support Cluster mode of deployment. With release 10.1 we support most of the important features ...

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  6. MPTCP: NetScaler Way

    So far we understood what is not working in today’s TCP implementation and how MPTCP comes to rescue (http://blogs.citrix.com/2013/08/23/networking-beyond-tcp-the-mptcp-way/). As we prepare ourselves to play a major role in Mobile world and transport requirements, MPTCP implementation was a natural fit. In Mobile world the client side changes happen at rapid rates as compared to Servers/Apps. Mobile clients are able to adopt newer technology changes and ...

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  7. Networking Beyond TCP: The MPTCP Way

    I am sure you had nice time thinking around the discussion captured in last blog (http://blogs.citrix.com/2013/08/16/networking-beyond-tcp/). So we know the problem well and we understand that trying to change the basis of networking is not going to be acceptable in any ways. Several researchers have worked together on this issue and finally came up with the proposal of MPTCP – Multi Path TCP.   Let us go back ...

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  8. Networking Beyond TCP

    Difficult to imagine? From our grandparents days Networking across systems is working reliably over TCP and that is what we have seen all throughout. The systems at either end of the network did not have to bother how the TCP connection was being established so the core definition of TCP was “a single connection between two hosts”. While researchers designed TCP/IP protocol suite, they did ...

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  9. Backup and Restore – Huge Value for NetScaler Admins

    Backup and Restore is functionally associated with every software and hardware device you work with today. Traditionally you would find this as key functionality in operating systems and file systems we work with and there are great use cases and value it brings on table.  Think of a networking device like NetScaler and the core use cases remain same. So far we were working with the ...

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  10. AppQoE: Quality of Experience at Application Layer

    In the last blog (http://blogs.citrix.com/2013/07/11/up-leveled-queuing-for-the-applications/) we discussed various queuing mechanism in NetScaler and how we got the core system queue up leveled for client connection handling. There are clear benefits of moving the queue to vserver/app layer from individual services but what beyond that? That’s a tricky question and it was in all our minds once we decided to up level the queue. The thought process ...

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