Published on: 2019-05-08
San Jose, CA May 8th, 2019 - Cisco and Colombian President Ivan Duque Marquez today announced joint efforts to fund and develop secure digital solutions addressing key social and economic goals in Colombia through the Country Digital Acceleration (CDA) program.
Published on: 2019-05-07
Enterprises recognize that all of the new technologies they want to deploy - IoT, edge computing, serverless, containers, hybrid cloud, and AI - require a robust, flexible, secure, self-healing, software-driven network. And the industry has responded with fresh new approaches such as ...
Published on: 2019-05-06
Cisco is looking to give traditional or legacy wide-area network users another reason to move to the software-defined WAN world. The company has rolled out an integrated hardware/software package called SD-WAN Cloud onRamp for CoLocation that lets customers tie distributed multicloud ...
Published on: 2019-05-02
SAN JOSE, Calif, --- May 2, 2019 --- Cisco today announced that it will participate in the following conferences with the financial community during the month of May. These sessions will be webcast. Interested parties can view these events on Cisco's Investor Relations website at ...
Published on: 2019-05-02
Related Media Astronauts and other Apollo 11 legends will use Cisco Webex to connect and celebrate the 50th anniversary of the lunar landing in July. "That's one small step for man, one giant leap for mankind." Chances are good you know exactly who said those words...and where he was when he ...
Published on: 2019-05-01
SAN JOSE, Calif, --- May 1, 2019 --- Cisco has scheduled a conference call for Wednesday, May 15, 2019 at 1:30 PM (PT); 4:30 PM (ET) to announce its third quarter fiscal year 2019 financial results for the period ending Saturday, April 27, 2019.
Published on: 2019-04-29
Today Cisco is announcing innovative solutions that help customers embrace a new age of wireless connectivity. Wi-Fi 6 (also known as 802.11ax), the new standard for Wi-Fi networks, is redefining what's possible for businesses - powering a new era of immersive wireless experiences and the ...
Published on: 2019-04-16
Hardware reigned supreme in the networking world until the emergence of software-defined networking (SDN), a category of technologies that separate the network control plane from the forwarding plane to enable more automated provisioning and policy-based management of network resources.
Published on: 2019-02-27
Disruptive network technologies are great-at least until they threaten to disrupt essential everyday network services and activities. That's when it's time to consider how innovations such as SDN, SD-WAN, intent-based networking ( IBN) and network functions virtualization ( NFV) can be ...
Published on: 2019-05-13
Today's Network Break explores why Microsoft is adding a Linux kernel to Windows, examines a new SD-WAN colo option from Cisco, discusses a new offering from VMware and Dell EMC that lets you get infrastructure on premises but pay for it like the cloud, plus more tech news and a couple of ...
Published on: 2019-05-09
In April, Cisco has released the newest Catalyst switch, the Catalyst 9600 series. Cisco Catalyst 9600 Series switches are purpose-built for resiliency at scale. They provide comprehensive security and can help your organization grow at low total operational cost.
Published on: 2019-05-07
Recently, Cisco released the newest AP, the Catalyst 9100 series access points, which are shipped with Wi-Fi 6. We all know the Wi-Fi 6 is the newest Wi-Fi technology, the next-generation wireless standard that's faster than 802.11ac. What is the Wi-Fi 6? The emerging IEEE Wi-Fi 6 standard is ...
Published on: 2019-05-06
Today on Network Break we dive in the deluge of products announced at Dell EMC World, discuss new Wi-Fi 6 gear from Cisco, explore Cumulus's latest version of its NetQ switch management software, and tackle even more tech news. It's a bonanza episode so pack a few extra virtual donuts.
Published on: 2019-05-03
You’ve probably heard by now of the big launch of Cisco’s new 802.11ax (neé Wi-Fi 6) portfolio of devices. Cisco did a special roundtable with a group of influencers from the community called Just The Tech. Here’s a video from … Continue reading →
Published on: 2019-04-29
Cisco switches family becomes bigger and bigger. There are at least 7 series in Catalyst family, such as Catalyst 3850, Catalyst 9300, Catalyst 9500, etc. How to find the right one to meet our need? Today, we'd like to introduce you a tool from Router-switch.com, the Switch Selector.
Published on: 2019-04-26
Well, the Cisco Live Scheduler is now open and there is one thing that I forgot to mention. If you are a CCIE, Cisco Live sessions can help you with your recertification by earning you CE credits via the Continuing Education Program.
Published on: 2019-04-24
One of the awesome benefits of Cisco Live is the free Cisco Pearson Vue testing that takes place during the event. Normally in past years, the testing center has been located at the convention location, yet in recent years the testing center has been located not within the convention center.
Published on: 2019-03-21
MPLS core networks that use Label Distribution Protocol (LDP) are common in SP core networks and have served us well. So, the thought of pulling the guts out of the core is pretty daunting and invites the question why you would want to perform open-heart surgery on such critical infrastructure.
Published on: 2019-03-14
We're using Cisco NSO in our lab at the moment to provision L3VPNs across multi-vendor environments as part of a demo. Just noting down a few things here for future reference: You can use the curl (command-line URL) utility to query NSO's API and retrieve the configuration of a device it knows ...
Published on: 2019-03-07
Cisco Live happened in Barcelona end of January, and as usual I am a little late with my blog posts about it. Like the last two years I was invited to join the group of technology experts for Tech Field Day Extra, with various presentations covering a number of new and improved Cisco ...
Published on: 2019-03-04
Recently, Wireshark dropped a major release which adds a few cool features (some new and some old). However outside of the new features, there is one major under the hood change this feature introduces. WireShark v3 for Windows now ships with Npcap as opposed to Winpcap that we have been used ...
Published on: 2019-01-16
The Networking Field Day Exclusive one-day event with Cisco's Service Provider business unit definitely exceeded my expectations, and I believe showcased a different approach to technology and their customers than we might have seen from the Cisco Systems of four or five years ago.
Published on: 2019-01-02
2018 is done! I wanted to share what I have done during the last year. During 2018, probably the biggest decision for me was establishing a company in Turkey. This photo was taken during a CCDE Bootcamp 10 days after I opened my office in Istanbul.
Published on: 2019-01-02
BGP Implicit and Explicit Withdraw are important BGP messages. Understanding these two mechanisms not only help for understanding BGP convergence but also helps for BGP path diversity. While I was explaining BGP Add-Path in my Instructor Led CCDE course, I used the term 'BGP Implicit Withdraw' ...
Published on: 2018-10-09
In the last article, I explained how to configure DMVPN phase3, but what are the most useful commands to troubleshoot this type of network architecture? Five are the main group of commands used to troubleshoot a DMVPN topology: The "show dmvpn" and "show ip nhrp" commands permit to obtain the ...
Published on: 2018-07-16
In a previous article, I explained what is and how it works DMVPN technology. In this article you see how to configure DMVPN phase3. This phase allows spokes to build a spoke-to-spoke tunnel and to overcomes the phase2 restriction using NHRP traffic indication messages from the hub to signal to ...
Published on: 2018-06-26
In an old post, dated 2011, I explained various types of VPN technologies. In seven years several things have changed: SHA1 is deprecated, des and 3des are no more used for security issues, but some VPN technologies are still used with protocols more secure (SHA256, AES, ...).
Published on: 2018-04-05
At the end of March, Cisco published a stack-based buffer overflow vulnerability in Smart Install Client code. This vulnerability enables an attacker to remotely execute arbitrary code without authentication. So it allows getting full control over a vulnerable network equipment. Cisco Smart ...
Published on: 2018-10-18
The inspiration for this post comes from spending way too much time trying to solve an issue that would have taken only minutes had I been aware of the key information I'm generously bestowing upon my fine readers today. The problem started with reports that just 8841 phones weren't successfully ...
Published on: 2018-09-26
Way, way back in 2013, I attended Wireless Field Day 4 and I heard a presentation by Sean Rhea of Meraki about their backend database LittleTable, how it was developed, how it worked and how it grew. A few highlights of Sean's presentation covered the server redundancy with data-center ...
Published on: 2018-09-04
Mobility Field Day is coming sooon. September 12-14th I will gather with 11 other MFD delegates in San Jose to take part in Mobility Field Day 3! I haven't taken part in a full length Tech Field Day event since Wireless Field Day 8 (and that was a long, long time ago!).
Published on: 2018-09-03
Every once in a while there is some news about Wireshark being vulnerable to being attacked/exploited/pwned, meaning that there is a way to craft frames/packets in a pcap/pcapng file to make Wireshark crash and (if done right) execute malicious code. So let's take a look at what that means and ...
Published on: 2018-08-17
When configuring ACI, have you ever wondered what those Resolution Immediacy options [ Immediate | On Demand | Pre-provision] and the Deployment Immediacy options [ Immediate | On Demand] do? Read on to find out. I always like to start with a picture.
Published on: 2018-06-12
Cisco ACI uses OpFlex to communicate with VMWare DVS/VDS. OpFlex is an extensible policy protocol designed to exchange abstract policy between a network controller and a set of smart devices capable of rendering policy. OpFlex relies on a separate information model understood by agents in both ...
Published on: 2018-07-10
It's hard to believe it's been nearly a month since Cisco Live 2018! The amazing week at Geek Camp was filled with fantastic sessions, Tech Field Day goodness, and lots of great conversations with incredibly talented people. Engineering Deathmatch had a great lineup, and even launched a new quiz ...
Published on: 2018-06-09
I am excited to be in my first Ciscolive US starting tomorrow in Orlando, Florida. This post is about how I spent my time on the way to CLUS. When I decided I will go to CLUS, I booked my return fl...
Published on: 2017-10-16
*** This page is being updated regularly. Please check back periodically. ***I'm sure everyone who does anything with networking or Wi-Fi has heard about the announced WPA2 KRACK vulnerability. I won't go into depth with my opinion on it. I'd just like to start a collection of useful information ...
Published on: 2017-10-07
Cisco Aironet Developer Platform A few months ago I had heard about a solution Cisco was working on to provide developers access to the modular interface on the AP3800. Cisco, for awhile, has had some sort of modularity in their high end AP but it was reserved for future standards or Cisco ...
Published on: 2017-08-04
In my previous post in april I figured out how to upgrade the software step by step. In the mean time I found out it’s possible to do this in once. You need to setup first some tools before you can start. Have a TFTP and a FTP Server TFTP server needs to contain the…
Published on: 2017-01-18
Lately I'm busy to configure Cisco IOS routers in combination with Remote offices where we place Meraki Appliances (like the MX64, MX65 or the Z1) When we do this we create also a VPN connection (site to site). In this setup the Main office has a Cisco IOS router.
Published on: 2016-03-10
Today I am embarking on a new method of study for me. I have been procrastinating taking my CCDP ARCH exam(300-320) for over a year now. To achieve my goal of passing it finally, I have decided to post my study notes as I go through the Encouragement, brow beating and other forms of ...
Published on: 2015-06-01
By now most people in the networking industry have heard that there will be a large gathering of networking people in San Diego, CA June 7-11. For those that are going, especially first timers, here are some of my tips and tricks. Training This is to me the meat of the week.
Published on: 2015-04-15
If you still aren't convinced to go to Cisco Live! this year in San Diego, perhaps a sneak peek at two of the courses will help. BRKRST-2311P - IPv6 Planning, Deployment and Troubleshooting (1 Hour) Presented by Jim Bailey - Technical Leader, Cisco 10:00am PDT / 12:00pm CDT/1:00pm EDT This ...
Published on: 2015-02-14
Network Engineers are known to have to work in dirty places like under desks, janitors closets (err I mean network closets), and those weird spaces in mechanical rooms in which someone decided to hide a switch or two.
Published on: 2016-11-19
I know I am a few months late on this one, but figured it would be worth throwing out there. Earlier in the year Cisco updated and released its access points to be compliant with -B domain regulations set forth by the FCC in North America.
Published on: 2016-09-22
Looks like the SITCS Exam, that is part of the CCNP: Security exam is going from v1.0 to v1.5. SITCS is the exam oriented around 'Implementing Cisco Threat Control Soluation'. Now, it only makes sense as the original version of this exam was more geared towards Cisco IPS & CX which has since ...
Published on: 2014-02-07
Yes, it can be done by BGP. What was the question anyway? Path hiding on a route server running BGP can happen if the route server has been configured to filter the chosen best path from reaching a particular route server client. Assuming a traditional best path selection, when the same prefix ...