Cisco SF250, SG250, SF350, SG350, SG350XG, and SG550XG series switches
Cisco network engineers might not be familiar with the multi-vendor sFlow technology since it is a relatively new addition to Cisco products. The article, Cisco adds sFlow support, describes some of the key features of sFlow and contrasts them to Cisco NetFlow.Configuring sFlow on the switches is straightforward. For example, The following commands configure a switch to sample packets at 1-in-1024, poll counters every 30 seconds and send sFlow to an analyzer (10.0.0.50) over UDP using the default sFlow port (6343):
sflow receiver 1 10.0.0.50For each interface:
sflow flow-sampling 1024 1A previous posting discussed the selection of sampling rates. Additional information can be found on the Cisco web site.
sflow counter-sampling 30 1
NFV World Congress: NFV Progress And Standards
Here are highlights from the event, which showcased service providers' NFV deployments.
How Walmart Canada’s responsive redesign boosted conversions by 20%: a case Study
With conversion optimization on the rise, it is a great idea to look into case studies which help you learn and adopt them to your personal needs positively. To find the material on conversion optimization you need from case studies, here are some few pointers:
- Find out which case studies reflect your situation currently in business and your future aspirations.
- Find out why a certain aspect of a case study worked and how to adopt it to specifically address your website’s needs.
- Ensure you keep the references of your case study in order to go back to them when you need them.
Find out which case studies reflect your situation currently in business and your future aspirations.Find out why a certain aspect of a case study worked and how to adopt it to specifically address your website’s needs.Ensure you keep the Continue reading
Interop 2016 Photo Gallery
Don't miss a bit of the action going on at Interop Las Vegas 2016. Check back for new photos daily.
Worth Watching: IPv6 Measurements
The post Worth Watching: IPv6 Measurements appeared first on 'net work.
Worth Watching: IPv6 Measurements
The post Worth Watching: IPv6 Measurements appeared first on 'net work.
Does Your Ethernet Switch Break Application Performance?
Test results show that a Tomahawk-based switch unfairly allocates bandwidth, while a Mellanox Spectrum-based switch allocates bandwidth fairly regardless of which ports are used.
The post Does Your Ethernet Switch Break Application Performance? appeared first on Packet Pushers.
Does Your Ethernet Switch Break Application Performance?
Test results show that a Tomahawk-based switch unfairly allocates bandwidth, while a Mellanox Spectrum-based switch allocates bandwidth fairly regardless of which ports are used.
The post Does Your Ethernet Switch Break Application Performance? appeared first on Packet Pushers.
Quantifying Benefits of Network Virtualization in the Data Center
Network virtualization for the data center promises to improve service agility, simplify network operations, and reduce capital expenditures. One of the biggest challenges for IT professionals is to quantify the return-on-investment required to justify the costs of network virtualization and the changes it requires in their data center network operations.
OSI Model…moving up-and-down the stack
Hello everyone!
I recently received an email from a learner who is studying for his CCNA Routing-and-Switching Certification and he had a few excellent questions about the OSI model and how, exactly data moves from one-layer to the next. I figured my response might prove valuable to others studying for their CCNA so…here it is!
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- Learner-Question: In video of the osi model, you said that the session layer should provide the source and destination port number but the fields of those ports are at the transport header- my question is how does the session layer put this number on field which does not exist in that time (when i send the date the encapsulation process goes down from the app layer)?
In order to thoroughly answer all of your questions below, one really needs to know about computer programming, APIs, etc…which frankly, I know very little about. But what I do know, I’ll try to explain. From my understanding, there are some kind of software “links” or “hooks” which are used to allow a program at one layer of the OSI model to communicate with a program at another layer. Many applications have software built-in that provide multi-layer functionality. Continue reading