Where to start with Cisco & SourceFire
Since Cisco announced EoX for both it’s traditional IPS and it’s CX-Modules it’s been time to start looking at the new SourceFire modules, however that can be quite an undertaking since SourceFire is a completely different beast from its predecessors. Which raises the question where do you start to begin getting familiar with this new system. […]
Good Enough
Looking at my desk in the late 1990’s, that little haven where I came in early in the morning, and left ealry’ish in the afternoon, you’d see a catalog rack. Only it wasn’t full of catalogs, it contained a full set of the latest Cisco IOS documentation. We whined when a new version of the docs came out that wouldn’t fit in the catalog racks we already owned, and ordered another one. There was a bookcase on the side which contained the documentation from the last two or three versions of the IOS code, and then every hardware manual I could find. Another stack of books would be lying in a corner, the “quick reference” stuff that wouldn’t fit in one of the catalog racks. All over the walls were pieces of paper, carefully crafted shortcut sheets, shared around the TAC, pinned up. Given the nature of cubicle walls, we either bought special cubicle clips, or we made to do with various sorts of push pins. Just a few years later, the ISO auditors came along and made us throw it all away. Every last scrap. The dumpsters were filled to the max. Extra dumpsters were brought in, and we Continue reading
30 – VxLAN/EVPN and Integrated Routing Bridging
VxLAN/EVPN and Integrated Routing Bridging
Summary
As I mentioned in the post 28 – Is VxLAN Control Plane a DCI solution for LAN extension, VxLAN/EVPN is taking a big step forward with its Control Plane and could be used potentially for extending Layer 2 segments across multiple sites. However it is still crucial that we keep in mind some weaknesses and lacks related to DCI purposes.
DCI is not just a layer 2 extension between two or multiple sites. DCI/LAN extension is aiming to offer business continuity and elasticity for the cloud (hybrid cloud). It offers disaster recovery and disaster avoidances services for Enterprise business applications, consequently it must be very robust and efficient. As it concerns on Layer 2 broadcast domain, it is really important to understand the requirement for a solid DCI/LAN extension and how we can leverage the right tools and network services to address some of the shortcomings that rely on the current implementation of VxLAN/EVPN offering a solid DCI solution.
In this article we will examine the integrated anycast L3 gateway available with VxLAN/EVPN MP-BGP control plane, which is one of the key DCI requirements.
Integrated Routing and Bridging
One of the needs for an efficient DCI deployment is the Continue reading
Broadcom Adds Another 25G/50G Piece for the Data Center
The 50G data center is within reach, Broadcom says.
The Evolving WAN Architecture
Emerging software-defined WAN technologies overcome the limitations of traditional WAN design.Published: New SDN and NFV Materials
Last week I published slide decks for Network Function Virtualization, BGP-Based SDN Solutions and SDN Use Cases webinars – they’re available to subscribers and attendees registered for individual webinars.
Content from all three webinars is part of my SDN workshop – if you’d like to hear a live explanation, register for one of them.
Security – Just Another Risk
I made a conscious decision to move away from full-time information security work. I retain an interest, and try to keep up with developments, but I don’t want to be “the security guy.” There are several reasons for it, but a large part is due to the hype, the bullshit, and general inability for the security industry to act like grown-ups.
The most frustrating part was the inability to properly classify risk. Robert Graham put this eloquently here:
Infosec isn’t a real profession. Among the things missing is proper “risk analysis”. Instead of quantifying risk, we treat it as an absolute. Risk is binary, either there is risk or there isn’t. We respond to risk emotionally rather than rationally, claiming all risk needs to be removed. This is why nobody listens to us. Business leaders quantify and prioritize risk, but we don’t, so our useless advice is ignored.
Security folk often forget that they are just another risk. Yes, it’s a risk shipping the product with that bug. But not shipping at all might be a larger risk to the business. Even complete data breach may or may not be catastrophic to the business – RSA is still Continue reading
Citizens of Tech 011 – Prosthetic Phone Diving
In today’s show, we acknowledge our software overlords, let the cars do the driving, investigate Lego prosthetics, deep dive on diving, and more.
The post Citizens of Tech 011 – Prosthetic Phone Diving appeared first on Packet Pushers.
Citizens of Tech 011 – Prosthetic Phone Diving
In today’s show, we acknowledge our software overlords, let the cars do the driving, investigate Lego prosthetics, deep dive on diving, and more.
Author information
The post Citizens of Tech 011 – Prosthetic Phone Diving appeared first on Packet Pushers Podcast and was written by Ethan Banks.