Show 224 – HTTP2. Its The Biggest (Network) Thing Happening on the Internet Today
HTTP/2 is now submitted to the RFC Editor and will bring major changes to networking. Efficient design means smaller firewalls, less bandwidth and faster response times for users. And the default to encryption means that transparent caches, proxies, IDS/IPS and other network security systems will be seriously impacted.
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The post Show 224 – HTTP2. Its The Biggest (Network) Thing Happening on the Internet Today appeared first on Packet Pushers Podcast and was written by Greg Ferro.
Update: Performance of Hash Table Lookups
In the Myths That Refuse to Die: Scalability of Overlay Virtual Networking blog post I wrote “number of MAC addresses has absolutely no impact on the forwarding performance until the MAC hash table overflows”, which happens to be almost true.
Read more ...Free-Form Discussion at CLEUR
I was fortunate enough to be invited out to Milan, Italy for Cisco Live Europe, and we had a few interesting discussions about a multitude of topics. One of them was more free-form than the others, and focused on defining SDN, what it’s value is, and where that value is most realized.
Check out this video recording of the session; it was good to get a few perspectives from non-networkers, since I’m sure their perspective is different from the network administrator’s as it pertains to the ongoing shift in this industry:
For the record, it’s not fair to say that VLAN provisioning takes two weeks, even after change approval. What the server administrator is usually asking for is an entirely new logical network, and there’s much that has to happen in order to do this, the easiest of which is tagging the server port on the ToR. These networks have dependencies, like IP space, firewall and load balancer contexts. Sometimes, routing configurations have to be changed. Is the current provisioning model optimal, or even acceptable? Of course not – that’s why I’m focusing on the newer, more automated methods. However, there’s more than meets the eye here.
I also want Continue reading
Free-Form Discussion at CLEUR
I was fortunate enough to be invited out to Milan, Italy for Cisco Live Europe, and we had a few interesting discussions about a multitude of topics. One of them was more free-form than the others, and focused on defining SDN, what it’s value is, and where that value is most realized.
Check out this video recording of the session; it was good to get a few perspectives from non-networkers, since I’m sure their perspective is different from the network administrator’s as it pertains to the ongoing shift in this industry:
For the record, it’s not fair to say that VLAN provisioning takes two weeks, even after change approval. What the server administrator is usually asking for is an entirely new logical network, and there’s much that has to happen in order to do this, the easiest of which is tagging the server port on the ToR. These networks have dependencies, like IP space, firewall and load balancer contexts. Sometimes, routing configurations have to be changed. Is the current provisioning model optimal, or even acceptable? Of course not - that’s why I’m focusing on the newer, more automated methods. However, there’s more than meets the eye here.
I also want Continue reading
Device Naming Conventions – What’s in a Name
Choosing a device hostname seems trivial to say the least. However, from multiple design meetings, this is a topic that tends to drag on...[[ Summary content only, you can read everything now, just visit the site for full story ]]
Networking Field Day – Afterthoughts – NetBeez & Wireless Monitoring
Well, Networking Field Day 9 has ended, it was a very quick, fun and informative three days. I have to start by giving NetBeez a lot of respect for the great presentation, and I that same I almost want to apologize for the suggestions and feedback that we (All the delegates) bombarded them with during […]