April 11, 2018

Data Center Upgrade:What’s the Choice?

Data Center Upgrade:What’s the Choice?

Today’s question is about switch displacement. This is a question that most data centers have to face in a time.wire markers Because devices have spent their whole lives there or the growth in data traffic quantity has outpaced their capacity.

User’s Question: What would you guys recommend to replace some Cisco 3560’s? Need to keep budget small, but need to do VLANs and multiple port trunks and having some 10GbE capabilities. This will be used for data center.

Answer: Basically, you’re saying that you’d like to replace some Cisco 3560 switches with new switches that support VLANs, multiple port trunking (usually by using link aggregation control protocol [LACP]) and have some 10G ports, right? And on the premise of "keeping the budget small”.

As shown in the following figure (right), in data center Cisco 3560s are commonly used as access switches that connect servers and applications to the network, and the top-tier switch is usually 3750. Since you need to replace 3560 with an access switch that is capable of 10G, Cisco 3650 would be the closest thing. At the meantime the top-tier switch 3750 is usually displaced by Cisco 3850/Nexus FEX, in essence a change from 1G uplink to 10G uplink.

Cisco Catalyst 3560 to 3650Considering the vendors might give you a discount, you could get one 3650 series switch at much lower cost than the MSRP (Manufacture Suggested Retail Price). However, these prices do not include optics or software licenses.The first type is Juniper EX3400 series switches. EX3400 offers up to 4096 VLANs on Layer 2. All of them have four 10G SFP+ ports (and two 40G ports). The PoE ability is also optional.

Posted by: shinenewstop at 03:39 AM | No Comments | Add Comment
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