While Juniper pieces their MX-Series and EX-Series together to provide a data center solution, Arista Networks designed their EOS switches from scratch purposely for data center and cloud computing, Force10 networks and Brocade Networks are warming up on data center switch markets, as the leader in Ethernet switch market, Cisco already had a end-to-end and market-proven data center solution using their specially engineered Nexus series switches.
There are numerous innovations and new technologies in Cisco Nexus series switch, such as DCB, FCOE, Nexus OS, FabricPath, FEX and Nexus 1000V. One article is necessary to analyze those technologies. Here
is a list of Nexus series switches. You could see its portfolio is the richest in industry.
Showing posts with label DataCenterSwitch. Show all posts
Showing posts with label DataCenterSwitch. Show all posts
Sunday, December 19, 2010
Saturday, December 18, 2010
Introduction to Arista EOS Switches
Arista Networks create a lot of buzz those days. Based on its platform EOS -- another network operating system after Cisco's IOS, Nexus OS and Juniper's JUNOS, Arista Networks delivers a portfolio of Gigabit and 10 Gigabit Ethernet switches targeting Data Center market.
From its websites, we could know EOS is built on top of Linux and written using C++ and Python. L2/L3 network protocols, CLI, SNMP, and ASIC drivers are running in user space. ProcMgr is the process to do stateful restart and recovery based on System Database (SysDB), which works as IPC mechanism between different user agents. The innovation of EOS is its vEOS, VM Tracer and MLAG.
In big picture, Arista Networks shares similar view as Cisco's vision on data center network: Access, Aggregation and Core. This may came from the fact that Arista's CEO and founders ever worked in Cisco Systems. The performance looks promising from disclosed data sheet. The per-port pricing is attractive too. However, compared to Cisco's portfolio, the choice Arista Networks provided is limited. The feature set is not that rich. What's more, the solution between leaf switch and server or VM is software-based. Not sure whether it would affect the performance when system scaled bigger.
From its websites, we could know EOS is built on top of Linux and written using C++ and Python. L2/L3 network protocols, CLI, SNMP, and ASIC drivers are running in user space. ProcMgr is the process to do stateful restart and recovery based on System Database (SysDB), which works as IPC mechanism between different user agents. The innovation of EOS is its vEOS, VM Tracer and MLAG.
In big picture, Arista Networks shares similar view as Cisco's vision on data center network: Access, Aggregation and Core. This may came from the fact that Arista's CEO and founders ever worked in Cisco Systems. The performance looks promising from disclosed data sheet. The per-port pricing is attractive too. However, compared to Cisco's portfolio, the choice Arista Networks provided is limited. The feature set is not that rich. What's more, the solution between leaf switch and server or VM is software-based. Not sure whether it would affect the performance when system scaled bigger.
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