Evolution of the LAN: Migrating to an Intelligent Switch
[2008-7-31]
Tag : network switch router
Network administrators should thoroughly evaluate the available options before deciding on their next switch upgrade for the LAN. Switches can be divided into two categories: access switches and core datacenter switches. With little innovation in the access switching market, we’ve developed the mindset that all switches do the same thing. That is mainly because Layer 2 and Layer 3 switching features have been commoditized, so differentiation among switches eventually falls back to price and brand name. However, several variables have changed in today’s enterprise network, and they are causing IT pain points that require a smarter access edge.
You probably buy new access switches because you are rolling out a new building and deploying new services such as VoIP and wireless, which require Power over Ethernet (PoE) ports, or when you need GigE connectivity at the desktop or 10G uplinks for increased application performance. In addition to providing this connectivity, access switches can also play an important part in reducing risk and increasing productivity, two variables that are often overlooked. The LAN user community no longer consists of just your employees; it now includes contractors, outsourced personnel, and guests. The traffic that runs across your LAN is no longer made up of just your business applications; it includes P2P, social networking, and file-transfer applications that hide behind well-known Layer 4 ports (e.g., port 80). How can you accurately identify and control users and applications without relying on basic IP addresses and TCP/UDP port information?
If your only reason to upgrade your switches is to reduce connectivity costs, you are in luck. There are so many vendors to choose from; you’ll probably pick the cheapest switch from your reseller’s portfolio. However, if you want to protect your investment for future business needs, consider a more intelligent switch so you won’t have to purchase additional overlay devices that risk your network’s integrity.
Network administrators should thoroughly evaluate the available options before deciding on their next switch upgrade for the LAN. Switches can be divided into two categories: access switches and core datacenter switches. With little innovation in the access switching market, we’ve developed the mindset that all switches do the same thing. That is mainly because Layer 2 and Layer 3 switching features have been commoditized, so differentiation among switches eventually falls back to price and brand name. However, several variables have changed in today’s enterprise network, and they are causing IT pain points that require a smarter access edge.
You probably buy new access switches because you are rolling out a new building and deploying new services such as VoIP and wireless, which require Power over Ethernet (PoE) ports, or when you need GigE connectivity at the desktop or 10G uplinks for increased application performance. In addition to providing this connectivity, access switches can also play an important part in reducing risk and increasing productivity, two variables that are often overlooked. The LAN user community no longer consists of just your employees; it now includes contractors, outsourced personnel, and guests. The traffic that runs across your LAN is no longer made up of just your business applications; it includes P2P, social networking, and file-transfer applications that hide behind well-known Layer 4 ports (e.g., port 80). How can you accurately identify and control users and applications without relying on basic IP addresses and TCP/UDP port information?
If your only reason to upgrade your switches is to reduce connectivity costs, you are in luck. There are so many vendors to choose from; you’ll probably pick the cheapest switch from your reseller’s portfolio. However, if you want to protect your investment for future business needs, consider a more intelligent switch so you won’t have to purchase additional overlay devices that risk your network’s integrity.
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