Cisco Or Juniper Firewalls For The Next Cloud Pod?
As mentioned in the previous post, we’re nearing the decision point on our next cloud pod architecture. One of my tasks related to this project is to run a parallel effort to figure out what...
View ArticleMulti-Hop FCoE On Cisco Nexus 7K and MDS 9500
I sat through the major Cisco announcement today titled “Evolutionary Fabric, Revolutionary Scale.” There were several significant announcements today and many were very relevant to our cloud...
View ArticleVLAN Port Instance Limitation On Cisco UCS (STP Logical Interfaces)
In our planning for our second cloud pod using Cisco UCS infrastructure, we’ve run across a limitation that everyone planning a large multi-tenant deployment should be aware of. During our discussions...
View ArticleContinued Investigation On VLAN Port Count (STP Logical Interfaces)
I wanted to post a quick note to say that we are still actively investigating the VLAN port count limitations within a Cisco UCS pod. I’ve seen a couple of different explanations from both Cisco and...
View ArticleVLAN Port Limit (Continuing to Gain an Understanding)
Wouldn’t you know it! Just as we start digging into the VLAN port count (or VLAN port instance or STP logical interface) in preparation for our Vblock cloud deployment, we see a mysterious error pop...
View ArticleVblock Series 300 FX and 300 EX Builds Complete!
After three solid weeks of eating and sleeping Vblock, we have our production and lab Vblocks up and operational. We’ve also completed full failover testing of the entire environment. Here is a brief...
View ArticleDisabling Failback On VMware dvSwitch: Why You Should Consider
During some recent testing with our 1.0 cloud configurations in our lab, we noticed some behavior in failure scenarios that was pretty surprising. The scenario is this. You have a VMware based cloud...
View ArticleUnderstanding VLAN Port Count In A Cisco UCS Environment – Part 3 (Final)
I’ve posted two previous blog entries trying to cover the VLAN Port Count in a cloud environment. In a Cisco UCS environment (specifically a Vblock in our case), you have to be concerned about VLAN...
View ArticleUnderstanding Remote Access Requirements For Multi-Tenant Cloud
We are coming up on the third anniversary of our first service provider, multi-tenant cloud product launch at Windstream. Other than Amazon and a few other major players, there weren’t a lot of people...
View ArticleCisco Cloud Services Router – Brief Introduction For Service Providers
For those that didn’t hear, Cisco announced their Cloud Services Router at Cisco Live this year in San Diego. They didn’t put much emphasis on it at all and if you weren’t paying attention, you would...
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