If the VMware vFabric speculation is true, then the service focussed data centre designs just got very, very, interesting.
VMware “vFabric” And the Potential Impact on Data Centre Network Design
11 August 2010 By 9 Comments
Bisectional Bandwidth. And Why L2MP and Trill/RBridges Is Important ?
3 June 2010 By 8 Comments
Greg Ferro looks at Bisectional Bandwidth as a design technique in the data centre and why the impact of Layer 2 Multi-Pathing is a vital part of Data Centre Network Design.
F5 LTM and Tcp Timouts
15 April 2010 By 2 Comments
One of the dangers of being from a pure cisco background is assumption. You treat all devices as if they have the same defaults as ‘normal’ Cisco devices. I think I’m pretty good at avoiding this, but it gets us all sometimes. As we all know, when you run long lived TCP connections through application [...]
Blessay: Autonegotiation on Ethernet – It Works, It Should Be Mandatory!
12 March 2010 By 37 Comments
Interesting Switch Designs for Data Centre Racks From Juniper
8 March 2010 By 8 Comments
I was reviewing the Juniper Virtual Chassis Technology and there are some very interesting designs possible with their specific stacking technology.
Blessay: On Stackable / Fixed vs Chassis / Modular Ethernet Switches
27 February 2010 By 17 Comments
The debate on Stackable vs Chassis based switches has a long and proud pedigree. Here is my addition to the debate.
The Ten Networking Commandments
18 February 2010 By 4 Comments
If you run a Network team using these as a basis for business planning and operational excellence then you won’t go wrong.
Is EEM Ready for the Big Time ?
17 February 2010 By Leave a Comment
Cisco Releasing Spam RFCs? And Discovery on IETF Informational RFCs
10 February 2010 By 3 Comments
Why is M Foschiano from Cisco releasing Informational RFC’s to no real purpose ? Is this RFC Spam or some evil marketing plot ?
Notes on Cisco Catalyst 6500 Architecture. (Or What Does 720 in Supervisor 720 Mean ?)
4 February 2010 By 13 Comments
What does the ’720′ in the Supervisor 720 stand for ? Or, what do you need to know about Cisco C6500 switch architecture.
Can You Learn Anything From Google or Facebook Data Centers ?
10 January 2010 By Leave a Comment
Google and Facebook have been puffing themselves up about how clever they are at solving technical problems. Is it just cheap marketing, and is there actually anything that Enterprise computing can learn from what they have shared ?
Blessay: Lessons to Be Learned From Nortel’s Death Throes
11 December 2009 By 2 Comments
FCoE Isn’t a Replacement for Infiniband, It’s a Cheaper Copy That Customers Will Buy
6 December 2009 By 11 Comments
What the Letters on 802.1 Ethernet Standards Stand For
3 November 2009 By Leave a Comment
Rant:Why Is the IEEE All About Secrecy ?
23 October 2009 By Leave a Comment
Mibi Mega Kibi Kilo – Decimal and Binary Prefixes
22 October 2009 By 1 Comment
Cisco IOS Order of Operation – Updated, Again
9 September 2009 By 12 Comments
I often need to refer to the IOS order of operation when I start stacking multiple functions in an IOS configuration.
