MPLS Traffic Engineering: RSVP Resource Reservation Protocol

Today I am going to talk about the other MPLS traffic Engineering protocol named as RSVP or stands for Resource Reservation Protocol. In my earlier article I talked about the CR-LDP protocol and i promised to discuss about the RSVP protocol. Lets talk about the RSVP protocol in details to understand. I will come up with the configuration part of the RSVP protocol in later stage.

Before starting with the RSVP Protocol, Please have a look on the below mentioned link which will describe you CR-LDP protocol in details.

CR-LDP Protocol



Now Lets Talk about RSVP Protocol.
Resource Reservation Protocol - Traffic Engineering RSVP is a separate protocol at the IP level. It uses IP datagrams (or UDP at the margins of the network) to communicate between LSR peers. It does not require the maintenance of TCP sessions, but as a consequence of this it must handle the loss of control messages 

Fig 1.1- MPLS Traffic Engineering- RSVP Protocol
The Ingress LSR, LSR A, determines that it needs to set up a new LSP to LSR C. The traffic parameters required for the session or administrative policies for the network enable LSR A to determine that the route for Continue reading

Worth Reading: Security is a System Property

here’s lots of security advice in the press: keep your systems patched, use a password manager, don’t click on links in email, etc. But there’s one thing these adages omit: an attacker who is targeting you, rather than whoever falls for the phishing email, won’t be stopped by one defensive measure. Rather, they’ll go after the weakest part of your defenses. You have to protect everything — including things you hadn’t realized were relevant. Security is a systems problem: everything matters, including the links between the components and even the people who use the system. —Steven Bellovin @ CircleID

The post Worth Reading: Security is a System Property appeared first on rule 11 reader.

MPLS Scenario : CR-LDP(Constraint-based Routing Label Distribution Protocol)

Today i am picking very interesting topic about the MPLS. Some of People are aware of MPLS technology and how it works in the ISP - Internet Service Provider environment but some of them are not aware of the MPLS concept even.

This topic is basically for those students who knew the concept of MPLS ( May be the Frame mode MPLS or ATM based MPLS - L2 MPLS or you can say the L3MPLS concept ). Those who don't knew about MPLS, please go through the basic MPLS before this topic as this is one of the advance topic in MPLS named as " MPLS Traffic Engineering " which tells you about the how RSVP or CR-LDP works in the environment.

MPLS is a technology that offers to open up the internet by means of offering many additional services to programs using IP. MPLS forwards statistics using labels which are attached to each facts packet. these labels must be dispensed among the nodes that include the network.

So i have a question for you, Can you please let me know how many labels are used in the MPLS environment ? Did you read that ? Well i guess you knew, there Continue reading

Basics on Cisco DSL Router Configuration

Today I am going to talk about the DSL router basics and the configuration of the Cisco DSL router. People who are from the Routing and Switching background should have this as a basics level of learning. You can connect Cisco DSL router with the PC. A console connection is made with a rolled cable and connects the console port of the Cisco Digital Subscriber Line (DSL) Router to a COM port on a PC. The console cable that is included with the Cisco DSL Router is a flat light blue cable. 

For more information on the pin outs of a rolled cable, or the pin outs of an RJ−45 to DB9 converter, see Cabling Guide for Console and AUX Ports.
  • Connect the RJ−45 connector on one end of a Cisco console cable to the console port of the Cisco DSL Router.
  • Connect the RJ−45 connector at the other end of the console cable to an RJ−45 to DB9 converter.
  • Connect the DB9 connector to an open COM port on your PC.
Fig 1.1- Cisco 871W DSL Router 
Now Lets talk about how to set up the basic configurations on the above mentioned Cisco DSL router in Continue reading

How network automation can speed deployments and improve security

Five years ago, IT was decentralized at the University of New Mexico. “Every school or college had their own IT, and in most cases they were completely under-resourced – a one-person shop having to do phones, apps, email, desktop, servers, storage, disaster recovery, all of that,” said Brian Pietrewicz, deputy CIO at University of New Mexico.The university transitioned to a self-service model that enables each of its more than 100 departments to deploy infrastructure and application services itself and have them managed by the now-centralized IT team.Adopting VMware’s vCloud Automation Center enabled departments to consume cloud resources, but also give the management team the ability to curtail that consumption if necessary.To read this article in full or to leave a comment, please click here

How network automation can speed deployments and improve security

Five years ago, IT was decentralized at the University of New Mexico. “Every school or college had their own IT, and in most cases they were completely under-resourced – a one-person shop having to do phones, apps, email, desktop, servers, storage, disaster recovery, all of that,” said Brian Pietrewicz, deputy CIO at University of New Mexico.The university transitioned to a self-service model that enables each of its more than 100 departments to deploy infrastructure and application services itself and have them managed by the now-centralized IT team.Adopting VMware’s vCloud Automation Center enabled departments to consume cloud resources, but also give the management team the ability to curtail that consumption if necessary.To read this article in full or to leave a comment, please click here

How network automation can speed deployments and improve security

Five years ago, IT was decentralized at the University of New Mexico. “Every school or college had their own IT, and in most cases they were completely under-resourced – a one-person shop having to do phones, apps, email, desktop, servers, storage, disaster recovery, all of that,” said Brian Pietrewicz, deputy CIO at University of New Mexico.The university transitioned to a self-service model that enables each of its more than 100 departments to deploy infrastructure and application services itself and have them managed by the now-centralized IT team.Adopting VMware’s vCloud Automation Center enabled departments to consume cloud resources, but also give the management team the ability to curtail that consumption if necessary.To read this article in full or to leave a comment, please click here

VMware adds whitelist security to the hypervisor

Overlooked in the hoopla around the VMworld conference was an announcement of the availability of AppDefense, a new product that lets companies restrict the types of operations applications are allowed to run on virtualized servers. AppDefense works with the VMware hypervisor and can also connect to third-party provisioning, configuration management and workflow automation platforms. It can send out alerts, quarantine apps, shut them down and even restore a VM from an image. All of this is based on AppDefense catching unusual behavior, such as trying to modify the kernel or communicate with an unrecognized remote server. VMware already has some security features built into its NSX and VSAN products, but those are around networking and storage. AppDefense secures the core virtual machines in vSphere itself. It does this by using behavior-based whitelisting, which is not easy to do on desktops because they run a lot of apps. But on a server, especially a virtual server, it’s a much easier proposition. In some cases, virtual servers run only one or two apps, so shutting out everything else is simple.To read this article in full or to leave a comment, please click here

VMware adds whitelist security to the hypervisor

Overlooked in the hoopla around the VMworld conference was an announcement of the availability of AppDefense, a new product that lets companies restrict the types of operations applications are allowed to run on virtualized servers. AppDefense works with the VMware hypervisor and can also connect to third-party provisioning, configuration management and workflow automation platforms. It can send out alerts, quarantine apps, shut them down and even restore a VM from an image. All of this is based on AppDefense catching unusual behavior, such as trying to modify the kernel or communicate with an unrecognized remote server. VMware already has some security features built into its NSX and VSAN products, but those are around networking and storage. AppDefense secures the core virtual machines in vSphere itself. It does this by using behavior-based whitelisting, which is not easy to do on desktops because they run a lot of apps. But on a server, especially a virtual server, it’s a much easier proposition. In some cases, virtual servers run only one or two apps, so shutting out everything else is simple.To read this article in full or to leave a comment, please click here

VMware adds whitelist security to the hypervisor

Overlooked in the hoopla around the VMworld conference was an announcement of the availability of AppDefense, a new product that lets companies restrict the types of operations applications are allowed to run on virtualized servers. AppDefense works with the VMware hypervisor and can also connect to third-party provisioning, configuration management and workflow automation platforms. It can send out alerts, quarantine apps, shut them down and even restore a VM from an image. All of this is based on AppDefense catching unusual behavior, such as trying to modify the kernel or communicate with an unrecognized remote server. VMware already has some security features built into its NSX and VSAN products, but those are around networking and storage. AppDefense secures the core virtual machines in vSphere itself. It does this by using behavior-based whitelisting, which is not easy to do on desktops because they run a lot of apps. But on a server, especially a virtual server, it’s a much easier proposition. In some cases, virtual servers run only one or two apps, so shutting out everything else is simple.To read this article in full or to leave a comment, please click here

44% off Anker SoundBuds Bluetooth and Sweatproof Sport Headphones – Deal Alert

These Bluetooth headphones from Anker are lightweight, water resistant and provide up to 7 hours of listening on a single charge, making them a good consideration for workouts or outdoor activities. Customizable EarTips and InEar-Hooks give anyone a strong and comfortable fit. Anker promises a worry-free 18 month warranty, and right now if you buy the item on Amazon you'll get it for just $19.99, 44% off its typical list price, and an additional promotion also gets you discounts when you buy other Anker gadgets as well. See this deal on Amazon.To read this article in full or to leave a comment, please click here

Will Ransomware Die?

Ransomware has been one of the more prevalent security topics for past few years. Some probably think this form of digital destruction is here for the long haul. While this may be an accurate prediction, I can imagine a turn of events that would end this form of attack. To be clear, my theory is not that enterprise networks will plug every possible entry point. My prediction is that the ransomware business model COULD cease to be viable.

Let me expand on my position. For a business model to work, it has to have a monetization strategy. For ransomware, that strategy includes the victim sending money (typically bitcoin) to the attacker—trusting that they will be given the keys to decrypt their files. In this model, the victim has to trust their attacker [to do the right thing]. In and of itself, that seems to be an oxymoron and a plea in desperation.

So if these types of attacks fail to produce recovery options and gain widespread coverage, this trust is further eroded. To some degree this has already happened with Nyetya.

TALOS – New Ransomware Variant “Nyetya” Compromises Systems Worldwide

 

Without analyzing the key generation or key storage components, Talos believes Continue reading

Will Ransomware Die?

Ransomware has been one of the more prevalent security topics for past few years. Some probably think this form of digital destruction is here for the long haul. While this may be an accurate prediction, I can imagine a turn of events that would end this form of attack. To be clear, my theory is not that enterprise networks will plug every possible entry point. My prediction is that the ransomware business model COULD cease to be viable.

Let me expand on my position. For a business model to work, it has to have a monetization strategy. For ransomware, that strategy includes the victim sending money (typically bitcoin) to the attacker—trusting that they will be given the keys to decrypt their files. In this model, the victim has to trust their attacker [to do the right thing]. In and of itself, that seems to be an oxymoron and a plea in desperation.

So if these types of attacks fail to produce recovery options and gain widespread coverage, this trust is further eroded. To some degree this has already happened with Nyetya.

TALOS – New Ransomware Variant “Nyetya” Compromises Systems Worldwide

 

Without analyzing the key generation or key storage components, Talos believes Continue reading

Will Ransomware Die?

Ransomware has been one of the more prevalent security topics for past few years. Some probably think this form of digital destruction is here for the long haul. While this may be an accurate prediction, I can imagine a turn of events that would end this form of attack. To be clear, my theory is not that enterprise networks will plug every possible entry point. My prediction is that the ransomware business model COULD cease to be viable.

Let me expand on my position. For a business model to work, it has to have a monetization strategy. For ransomware, that strategy includes the victim sending money (typically bitcoin) to the attacker—trusting that they will be given the keys to decrypt their files. In this model, the victim has to trust their attacker [to do the right thing]. In and of itself, that seems to be an oxymoron and a plea in desperation.

So if these types of attacks fail to produce recovery options and gain widespread coverage, this trust is further eroded. To some degree this has already happened with Nyetya.

TALOS – New Ransomware Variant “Nyetya” Compromises Systems Worldwide

 

Without analyzing the key generation or key storage components, Talos believes Continue reading

IDG Contributor Network: Why hybrid cloud is the future of enterprise IT

As cloud computing continues to generate a huge amount of buzz and interest over its future, another phenomenon is gaining investor’s and developer’s interest with promises to upend the future of enterprise IT. Hybrid cloud tech, which has only recently come into its own, is increasingly being recognized as the cash-cow of the future. But what exactly is this tech, and is it worth all the hubbub it’s garnered?A quick look at today’s hybrid cloud tech shows that the attention it’s drawn to itself is entirely warranted; the idea behind it may not be new, but recent advancements in computing have enabled it to truly thrive in the marketplace for the first time, and it could very well be on the verge of redefining modern computing. So what exactly is the future of hybrid cloud, and how close is it to taking off?To read this article in full or to leave a comment, please click here

IDG Contributor Network: Why hybrid cloud is the future of enterprise IT

As cloud computing continues to generate a huge amount of buzz and interest over its future, another phenomenon is gaining investor’s and developer’s interest with promises to upend the future of enterprise IT. Hybrid cloud tech, which has only recently come into its own, is increasingly being recognized as the cash-cow of the future. But what exactly is this tech, and is it worth all the hubbub it’s garnered?A quick look at today’s hybrid cloud tech shows that the attention it’s drawn to itself is entirely warranted; the idea behind it may not be new, but recent advancements in computing have enabled it to truly thrive in the marketplace for the first time, and it could very well be on the verge of redefining modern computing. So what exactly is the future of hybrid cloud, and how close is it to taking off?To read this article in full or to leave a comment, please click here

4 Main Design Principles of Mobile Networks

4 Main, Key Design Principles of Mobile Networks – I will explain the 4 key design principles of cellular networks in plain English.   In fact I should have said, cell based systems as mobile networks may not be design based on cell based architecture.   Let me explain what would be the other deployment […]

The post 4 Main Design Principles of Mobile Networks appeared first on Cisco Network Design and Architecture | CCDE Bootcamp | orhanergun.net.

What’s So Bad About POSIX I/O?

POSIX I/O is almost universally agreed to be one of the most significant limitations standing in the way of I/O performance exascale system designs push 100,000 client nodes.

The desire to kill off POSIX I/O is a commonly beaten drum among high-performance computing experts, and a variety of new approaches—ranging from I/O forwarding layers, user-space I/O stacks, and completely new I/O interfaces—are bandied about as remedies to the impending exascale I/O crisis.

However, it is much less common to hear exactly why POSIX I/O is so detrimental to scalability and performance, and what needs to change to have a suitably …

What’s So Bad About POSIX I/O? was written by Nicole Hemsoth at The Next Platform.

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