How to classify and select switches?
Switches are widely used in weak current network projects, and all types of data transmission are inseparable from them. Today JHA Tech will talk about the classification and selection reference factors of switches.
- Classification of switches
- 1-1According to the network structure: it is divided into access layer switches, aggregation layer switches and core layer switches.
1-2According to the OSI model: it is divided into layer 2 switches, layer 3 switches, layer 4 switches, etc., all the way to layer 7 switches.
1-3 Manageability of switches: The difference between managed switches and unmanaged switches lies in their support for network management protocols such as SNMP and RMON.
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2.Main reference factors for switch selection
a.Backplane bandwidth, Layer 2/3 switching throughput.
b.VLAN type and number.
c.Number and type of switch ports.
d.Support network management protocols and methods. Switches are needed to provide more convenient and centralized management.
e,Qos, 802.1q priority control, 802.1X, 802.3X support.
f.Stacking support.
g.Switch switching cache, port cache, main memory, forwarding delay and other parameters.
h.Line speed forwarding, routing table size, access control list size, support for routing protocols, support for multicast protocols, packet filtering methods, machine expansion capabilities, etc. are all parameters worth considering and should be investigated based on the actual situation.
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