Cisco Unveils Data Center Monitoring Platform
Tetration Analytics, which gathers telemetry from Nexus 9K switches and server sensors, promises complete visibility.
Programmable hardware: Barefoot Networks, PISA, and P4
table sflow_ing_take_sample {
/* take_sample > MAX_VAL_31 and valid sflow_session_id => take the sample */
reads {
ingress_metadata.sflow_take_sample : ternary;
sflow_metadata.sflow_session_id : exact;
}
actions {
nop;
sflow_ing_pkt_to_cpu;
}
}Network visibility is one of the major use cases for P4 based switches. Improving Network Monitoring and Management with Programmable Data Planes describes how P4 can be used to collect information about latency and queueing in the switch forwarding pipeline.
Net Neutrality Decision: What Matters, What Doesn’t
The FCC has won its latest court battle over net neutrality rules this week, but a bigger political and economic battle is looming.
74% of Organizations Feel the Pull of the Public Cloud
Numbers showing how many, what kind, and to what extent organizations are moving to public cloud.
Running Barefoot – Thoughts on Tofino and P4
The big announcement this week is that Barefoot Networks leaped out of stealth mode and announced that they’re working on a very, very fast datacenter switch. The Barefoot Tofino can do up to 6.5 Tbps of throughput. That’s a pretty significant number. But what sets the Tofino apart is that it also uses the open source P4 programming language to configure the device for everything, from forwarding packets to making routing decisions. Here’s why that may be bigger than another fast switch.
Feature Presentation
Barefoot admits in their announcement post that one of the ways they were able to drive the performance of the Tofino platform higher was to remove a lot of the accumulated cruft that has been added to switch software for the past twenty years. For Barefoot, this is mostly about pushing P4 as the software component of their switch platform and driving adoption of it in a wider market.
Let’s take a look at what this really means for you. Modern network operating systems typically fall into one of two categories. The first is the “kitchen sink” system. This OS has every possible feature you could ever want built in at runtime. Sure, you get Continue reading
Unhappiness with MPLS Spurs SD-WAN Adoption
These are enterprises with more than 1,000 employees.
