Cisco Intelligent Traffic Director (ITD) is a zero latency multi-terabit layer 4 load-balancer available on 5k/6k/7k/9k. It has support for traffic steering and clustering solution on the Nexus series of switches.
ITD allows customers to deploy servers and appliances from any vendor with no network or topology changes. With a few simple configuration steps on a Cisco Nexus switches, customers can create an appliance or server cluster and deploy multiple devices to scale service capacity with ease. The servers or appliances do not have to be directly connected to the Cisco Nexus switch. ITD takes load balancing decision in a single clock cycle of the switching hardware, Hence avoiding latency altogether.
ITD supports IP-stickiness, resiliency, NAT (EFT), VIP, health monitoring, sophisticated failure handling policies, N+M redundancy, IPv4, IPv6, VRF, weighted load-balancing, bi-directional flow-coherency, and IPSLA probes including DNS. There is no service module or external appliance needed.
ITD provides order of magnitude CAPEX and OPEX savings for the customers. ITD is available on Nexus 7000/7700 series in NX-OS 6.2(8) or later. It is available for demo/EFT on Nexus 5k/6k/9k. ITD is much superior than legacy solutions like PBR, WCCP, ECMP, port-channel, layer-4 load-balancer appliances.
Note:- ITD is not a replacement for L7 load balancers
Tags: Cisco Nexus 9000, ITD, latency, load balancer, nexus, Nexus 7000 Series Switches, Nexus 9000 Series Switches, performance
All too often we networkers spend our time defending the network not only from security threats but from blame as the root cause (actual or perceived) of performance problems. The network is guilty until proven innocent. So how do we counter these arguments, put the issue to rest, and uphold the integrity of the network? Logs, logs, logs.
Logs are evidence to support your hypothesis. There are a couple of different types of logs I’d like to talk through and the roles they provide in a tiered approach to troubleshooting.
SNMP – This is one of the first places I go to when an issue is reported. This provides a look at the current state of the network based on polling intervals and traps, and also a place to explore data patterns and trends. Most enterprises will have an NMS solution in place and in my experience this is also a great place to learn the topology of the network(s) when joining a new company. There are many commercial and open source products available and I suggest trying a few different options to find out which works best for you and your team as they all organize and present the data in slightly different manners. Read More »
Tags: #ciscochampion, nms, packet capture, performance, snmp
Hello all, I trust everyone’s week is going well. Today we get to hear from Michiel Beenen, the founder of TechConnect, based in the Netherlands. Michiel recently heard about the new Cisco WAP371 and wanted to see if this new 802.11ac wireless access point hit the mark. He has already deployed the WAP321 and WAP561, so the new WAP371 was peaking his interest. Here is what Michiel had to say:
“After many years of working with Cisco Aironet and Small Business devices, it was time for our company to start testing new access point models that would support Wi-Fi AC (higher speeds). But for many smaller companies and even for at home, Aironet products are just a bit to much and require way more knowledge than then you would simply need in a SMB/Home environment.
So after testing out the WAP321 and WAP561 last year we decided to buy a couple of Cisco WAP371 access points and so far the experience has been great. Installation was as easy as plugging it into your network, browsing to the IP of the access point and then following the Wizard.
The wizard will simply ask for a new admin password, Wi-Fi network names and security and if you want to setup a ‘cluster’ of WAP access points. A cluster can be very handy in a lot of cases, when you have more than one access point, a cluster takes care of a lot of things like roaming between access points and automatically updating the most important settings to each access point within a cluster (things like SSID and other settings will be automatically synced between all devices).
After the wizard is finished you get back into the graphical user interface and from there you can basically do whatever you want. Adjust settings like QoS, Radio channels, VLAN but also Guest support (with or without a Portal).
So far we have been testing with multiple iPhones, iPads, Android devices and Macbooks plus some Airplay speakers and it all seems to work perfectly fine.
Speed-wise we have reached speeds of up to 870Mbps so far over AC Wi-Fi and up to 250mMbps on the 2.4GHz band.
All in all, we are very satisfied with this product and happy that Cisco is coming up with products like this for the Small Business and Home users.”
More about TechConnect: TechConnect started in 1997, from the melting pot of several successful tech community web sites. Through the years, it has evolved into an internet company whose focus lies on technology solutions, gaming, music and online advertising. In the beginning, TechConnect was about the passion for technology, and the drive to making dreams come true.
TechConnect’s strength lies in the unique blend of skills and knowledge brought about by the varied and international nature of its employees. Hailing from across Europe, and from all walks of life, TechConnect employees are the lifeblood and heartbeat of the company, with their ideas, varied life experience and professional training. TechConnect helps small and medium sized companies in the Netherlands and Belgium with IT solutions and web services.
Michiel Beenen is the Founder and Managing Director of TechConnect. Internet entrepreneur and online gaming enthusiast, Michiel started the online community (GameConnect) through a combination of his passion for bringing friends together. Michiel has worked on many projects on the cutting edge of online and offline technology, and each has allowed him to build an unparalleled amount of personal connections at all levels of the advertising and gaming worlds, and he loves nothing more than creating new opportunities and projects driven by passion and technical aptitude.
Thank you to Michiel for taking the time out to pen this up for us. Make it a great rest of the week.
Tags: #80211ac, #wireless, branch, edge, ip, network, performance, router, smb, switch, WAP
It’s always interesting and often entertaining to observe how competitors promote their products and what they choose to focus on—and more importantly, what they choose not to focus on and what they hope people won’t ask questions about.
Consider yet again how a competitor chooses to position their “purpose built” AP vs. the Cisco Aironet 3700 802.11ac Access Point Series.
This competitor frequently (and somewhat obsessively) points out that its 802.11ac AP has dual “active” 800 MHz cores while the Cisco AP3700 has only one “active” 800 MHz core. This is not completely true since it completely overlooks the fact that the Cisco AP3700 also has a dedicated CPU core and DSP for each radio subsystem.
Furthermore, it also overlooks that the dual “active” cores in the competitor’s AP share 512 MB of DRAM. The single “active” core of the AP3700 has dedicated 512 MB of DRAM. Also each radio subsystem has a dedicated 128 MB DRAM (for 768 MB total DRAM in the AP3700).
Why is all of this important? Read More »
Tags: 11ac, 802.11ac, access point, AP, architecture, ASIC, client, compute, Computing, design, device, DRAM, efficiency, hardware, HD, HDX, high density, Industry, infrastructure, LAN, MB, memory, memory management, Mhz, mobile, mobility, network, networking, performance, rf, system, wi-fi, wifi, wireless, wlan
Englewood Cliffs public schools system, based in Bergen County, New Jersey offers classes to children from K-8 grades. The school system consists of two schools, the North Cliff school serving grades from K-2 and the Upper school serving grades from 3-8. The school system utilizes cutting-edge technology to assist learning from the classrooms equipped with technology, the 1 to 1 computer tablet initiative to the 6th, 7th and 8th graders to upgrading to the best-in-class wired and wireless infrastructure needed to support the advanced technologies.
At a Glance:
Located in: Bergen County, New Jersey
Number of students: 478
Number of teachers: 39
Access-Points: Thirty three units of 3602i with the 802.11ac module and two units of 3602e
Switch and Controller: Ten units of 3850 Series switch, that offers 40 Gig of line-rate performance even with imix traffic. Wireless LAN controller functionality is run within the switch itself. The switches are deployed in stacks of two and the rest are single switches. The wireless controller functionality is operating on the main stack in each school MDF. Operating in the latest release IOS-XE 3.3.3 Read More »
Tags: 11ac, 802.11, 802.11ac, access point, controllers, Converged Access, customer, deployment, education, englewood cliffs, equipment, Gig, imix, infrastructure, initiative, IOS XE, K-8, macbook, mdf, network, performance, school, switch, tablet, technology, UA, unified access, wi-fi, wifi, wired, wireless, wlan