Some Cisco 3750 switch users said that they are looking to replace their pair of 3750G switches (Stacked) by a new suitable Cisco catalyst switch. In fact, the Cisco catalyst 3750-X series is a not bad choice. The Catalyst 3750G uses stackwise and 3750X uses stackwise+. With Stackwise, EVERY packet has to go across the stack ring even if the destination port is on the local switch. With Stackwise+, the switches can do local switching.
Also, if you mix STackwise and Stackwise+ capable switches in the same stack, the Stackwise+ switches will still be able to switch locally and the Stackwise switches must continue to operate the same way.
So if you want to replace your Catalyst 3750G switches by Cisco 3750-X series, which Cisco 3750-X models you will consider? There is a table of typical Cisco 3750-X models REPLACEMENT for Catalyst 3750G models, have a look!
By the way, some Cisco users also raise the questions concerning the difference between Cisco 3750 series:
Q: What is the difference between a Cisco Catalyst 3750 and a Cisco Catalyst 3750G switch?
A: The G in the product code stands for gigabit ports. The Cisco 3750 also known as ‘classic’ contains Ethernet ports with a speed of 10/100, where the Cisco 3750G contains all gigabit ports with a speed of 10/100/1000.
Q: What is the difference between a Cisco Catalyst 3750(G) and a Cisco Catalyst 3750E switch?
A: The Cisco 3750E is the enterprise class in the Cisco 3750 switch line. The enterprise class line has a much bigger and faster backplane which can transport with 65 mpps or 102 mpps forwarding rate.
Q: Can I mix different Cisco 3750 switches in a stack?
A: Yes, you can Mix-and-Match switch types in a stack. Stacks can be created with any combination of Cisco Catalyst 3750 and Cisco Catalyst 3750-E switches. Customers who need a mixture of 10/100 and 10/100/1000 ports, PoE, and wiring-closet aggregation capability can incrementally develop the access environment, paying only for what they need. When uplink capacity needs to be increased, you can easily upgrade your bandwidth by adding a 10 Gigabit Ethernet version to the stack and upgrade your Gigabit Ethernet links with 10 Gigabit Ethernet on the existing fiber.
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If you need to read more topics and reviews of CISCO 3750 and other Catalyst switches, you can read the page https://blog.router-switch.com/category/reviews/cisco-switches/