The Next Generation in Cloud-Scale Networking: The Arista 7500E
Today we are announcing our new 7500E modular switch, the fastest and densest modular switching platform in the industry, enabling cloud networks to scale to over 100,000 servers and millions of virtual machines.
The Arista 7500E is a remarkable 3X better than its predecessor. It offers 3X the number of ports, 3X the fabric bandwidth, 3X the packet buffer, 3X the supervisor performance, and 3X the power-efficiency, without a chassis or power upgrade.
But the real story of the 7500E it that it enables customers to build a universal cloud networking infrastructure for the worldʼs largest data centers that can handle even the most demanding workloads with ease.
Letʼs take a look inside this remarkable new switch.
3X the Fabric Bandwidth
The 7500E has 3.84 Tbps fabric bandwidth per slot, or 30 Tbps per 8-slot chassis, three times the bandwidth of the first generation 7500.
3X the Port Density
The 7508E supports 1152 10G, 288 40G or 96 100G wire-speed ports in a 11U chassis, the highest port density in the industry and three times the number of ports of the first generation 7500.
3X the Packet Buffer
The 7500E comes with a world-record 144 GByte of packet buffer per 8-slot chassis, Continue reading
VMware VCDX Lab: The Hardware
I have to admit I’m a big VMware fanboy. Wanting to master the art of virtualization, I’ve set out to build out a personal lab. My primary goal is to work my way up to the VCDX certification. The curious thing about building a VMware lab is that all parts need to be on the […]
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The post VMware VCDX Lab: The Hardware appeared first on Packet Pushers Podcast and was written by Douglas Hanks.
Show 145 – Talking OpenDaylight and SDN
A community show where we get Brent Salisbury and Ivan Pepelnjak to talk about the events of the last few weeks. In the end, the only thing we seemed to cover was OpenDaylight, ONS and various SDN topics. Open Networking Summit – Brent reports in. Talking SDN and OpenDaylight Ivan asks “will you install open […]
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The post Show 145 – Talking OpenDaylight and SDN appeared first on Packet Pushers Podcast and was written by Greg Ferro.
Nexus 7000 IO Module SKU Cheat Sheet
Wow the title of this post is a mouthful.
Similar to my previous post on the Nexus 2000 (Nexus 2000 Model Number Cheat Sheet), this post will explain what the letters and numbers mean in the Nexus 7000 IO module part numbers. This will allow you to quickly identify the characteristics of the card just by looking at the part number which in turn should help you out as you're building BOMs and picking the right card for the job.
Update July 2, 2013: Updated to reflect release of the Nexus 7700 and F3 modules.
IGP Route Multipathing
In preparation for an upcoming post, I was reminded about a commonly referred to feature in most IGPs - the concept of Equal-Cost Multipath, or simply ECMP. This is the idea that multiple routes with the same cost to a remote network should get placed in the routing table alongside each other and packets should load-balance over them to use the additional available paths. After all, it’s the same cost, so why not?IGP Route Multipathing
In preparation for an upcoming post, I was reminded about a commonly referred to feature in most IGPs - the concept of Equal-Cost Multipath, or simply ECMP. This is the idea that multiple routes with the same cost to a remote network should get placed in the routing table alongside each other and packets should load-balance over them to use the additional available paths. After all, it’s the same cost, so why not?A Data Center Delivers Apps – So Shouldn’t We Monitor App Delivery?
Dinner with His Toadishness, Derick Winkworth, the other night rolled into a 3+ hour discussion of avant garde ways to do networking. One of the adjunct topics that came up was that of ownership within IT. Ownership is a complex problem in the data center, because there’s many complex technologies at work. No one single […]
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The post A Data Center Delivers Apps – So Shouldn’t We Monitor App Delivery? appeared first on Packet Pushers Podcast and was written by Ethan Banks.
Machine Fragile
Yesterday, a “breaking news” tweet at 1:07 PM EDT from the Associated Press reported that two explosions had occurred at the White House and President Obama had been injured. The news immediately sent the Dow Jones Industrial Average down 143 points, as this graph at the London Telegraph shows. There’s also a lovely animated display […]
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The post Machine Fragile appeared first on Packet Pushers Podcast and was written by Russ White.
Quiz #13 – Frame Relay self pinging
You have recently joined a new company that still uses Frame Relay. For monitoring purposes, you implement a script that pings all interfaces of a router, but you notice that some of them are not ping-able. Why ?
It Works and It Should Be Better
You say, “It works – don’t fix it.” I hear, “It works – don’t touch it.” I’m also thinking that if you don’t touch it, then it’s never upgraded or changed. Is a static, unchanged network the best you can do to support your business ? Are you happy with just doing more of the same […]
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The post It Works and It Should Be Better appeared first on Packet Pushers Podcast and was written by Greg Ferro.
What can you learn in 5 minutes a day !
I believe in minimalism and what small focused actions can make for a person and small steps is what Juniper learning bytes is all about. Learning bytes is an online learning resource launched last year by Juniper education services organization as a free service. The nice thing about the learning bytes is that they are focused, [...] No related posts. Related posts brought to you by Yet Another Related Posts Plugin.Your Job Hunt is YOUR Responsibility
Earlier this week, I read the article below. This article took a strong stance that a recruiter works for the employer, not those seeking employment. I think there are some valid points made. However, my views are a little less extreme than that of the author. NEWSFLASH: A Recruiter is Not a Job Finder!. Frankly, […]
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The post Your Job Hunt is YOUR Responsibility appeared first on Packet Pushers Podcast and was written by Paul Stewart.
FusionIO Acquires Nexgen
For anyone keeping tabs on the storage industry these days, you might have noticed the news today regarding FusionIO’s acquisition of Nexgen - one of a myriad of storage startups that have cropped up in the past few years to address the ever-changing needs of the data center industry. After looking through some of the articles that were published today, I think we all understand the financial details behind the transaction.FusionIO Acquires Nexgen
For anyone keeping tabs on the storage industry these days, you might have noticed the news today regarding FusionIO’s acquisition of Nexgen - one of a myriad of storage startups that have cropped up in the past few years to address the ever-changing needs of the data center industry. After looking through some of the articles that were published today, I think we all understand the financial details behind the transaction.Notes On AAA
Enabling aaa new model means the switch will try and match all login attempts using a aaa method.
First, define the TACACS or RADIUS server using:
tacacs-server host <IP-address> <optional key value>
There are some other values you can use, but I’ve never had to use these.
Now, give your authentication method a name:
aaa group server tacacs+ <method-name> server <IP-address>
Call the method for authenttication
aaa authentication login default group <method-name> group <fallback method name if configured> local
You should now be good to go!
DHCP client testing tool
DHCP is vastly growing in service provider networks for broadband subscribers, I had the chance to work lately with a some of these setups. The protocol is really easy to configure for broadband and provide many benefits. It has lower overhead compared to PPPOE and it is much more suitable for Multicast services. For those [...] No related posts. Related posts brought to you by Yet Another Related Posts Plugin.Programming 101 for Network Engineers – Preparation
Okay, let’s say you’re convinced you need to learn to programme and you don’t want to be left behind. The earlier you start, the more you can pick up (and the sooner you’ll become consciously competent) at a pace that suits you. Hopefully, you’ll be able to blend this into your schedule with whatever else you […]
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The post Programming 101 for Network Engineers – Preparation appeared first on Packet Pushers Podcast and was written by Steven Iveson.
Playing with event-scripts
Last week, I worked on 2 small projects in 11.4 Junos. I should: - Find a way to automatically disable a physical link when LACP "flapped" too many times during a given time. - Find a way to automatically disable a physical link when too many CRC errors...Playing with event-scripts
Last week, I worked on 2 small projects in 11.4 Junos. I should: - Find a way to automatically disable a physical link when LACP "flapped" too many times during a given time. - Find a way to automatically disable a physical link when too many CRC errors...Fabricpath Design, Think it Through! – part 1
What is FabricPath FabricPath is a Layer–2 routing architecture (yes L2 routing), using ISIS to build shortest path trees to destination bridges (using their bridge-id). Cisco offers plenty of...[[ Summary content only, you can read everything now, just visit the site for full story ]]