While at Cisco Live I had the pleasure of meeting several people who were curious about Multihop FCoE but had the unfortunate experience of getting too much misinformation from several sources (yes, including some of Cisco’s competition, but even some partners!). Some had already seen my article on FCoE and TRILL and wanted to know if I could help explain the relationship between FCoE and QCN (Quantized Congestion Notification), one of the documents in the IEEE DCB standard revision.
Even though we have a very good, short white paper on the subject, this is one of those subjects that as soon as people ask about it we break out the white boarding, or in the case of being at Cisco Live, the napkins. There are just some things that pictures help explain better.
Because of this, I’m going to try something different with this blog. It may work, or I may fall flat on my face; I suppose we shall find out. Read More »
Tags: FCoE, MDS 9500, Nexus 5500, Nexus 7000, QCN
Today I want to bring up DCI use case that I’ve been thinking about: capacity expansion. As you know, the purpose of DCI is to connect two or more Data Centers together so that they share resources and deliver services. The capacity expansion use case is when you have temporary traffic bursts, cloud bursts, either planned or unplanned, maintenance windows, migrations or really any temporary service event that requires additional service capacity.
To start addressing the challenge of meeting these planned and unplanned cloud burst and capacity expansion requirements, check out the new ACE + OTV feature called Dynamic Workload Scaling announced recently.
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Tags: ACE, Burst, Capacity Expansion, Cisco, cloud, Cloud Burst, data center, Data Center Interconnect, DC, DCI, DWS, Dynamic Workload Scaling, locality, Nexus 7000, OTV, SASU, Systems Architecture and Strategy Unit, virtual machine, VM, VM Locality
Cisco’s foundation for delivering the service provider Cloud is our Unified Service Delivery (USD) solution, featuring tightly integrated, data center and IP NGN technologies to deliver a virtualized end-to-end infrastructure for cloud services. We thought it would be useful to share some new capabilities that Cisco has added recently to the solution:
MPLS in the Data Center: To streamline the end to end operation across the data center and IP NGN, Cisco announced, last week, that Nexus 7000 supports Multi Protocol Label Switching (MPLS) for Layer 3 virtual private networks (VPNs). This allows MPLS to be deployed at the data center core/aggregation layer rather than terminating at the data center edge. This capability enables Service Providers to greatly simplify L3 segmentation, especially for multi-tenant cloud offerings, depending on their scale and service needs.
Another key to the delivery of a data center built for Cloud requirements of scale, virtualization and multi-tenancy has been the use of a Unified Fabric. Unified Fabric provides the flexibility of high performance, highly available networks to support the needs of both LAN and SAN on a consolidated fabric. Cisco’s Unified Fabric announcements last week bring new capabilities which extend our already robust offerings to further build out a Service Provider Cloud foundation.
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Tags: cloud, data center, mpls, Nexus 7000, Service Provider, storage networks, Unified Fabric, unified service delivery, virtualization
For months people have been asking me what I’m doing, and it’s been difficult to hold something like this under my hat because I’ve been really excited about this.
How the time has flown. I joined Cisco in June of last year, and on my first day my manager told me that I was going to be working on a new product – an FCoE blade for the MDS 9500 Series Fibre Channel Directors. Read More »
Tags: FCoE, MDS, Multihop FCoE, Nexus 2000, Nexus 5000, Nexus 7000