How to divide Cisco Cisco equipment into middle and high bottoms, and how to recognize them?

There is no big difference between 3560 and 3550.

All are Layer 3 switches.

2960 starts with 2 and is almost a Layer 2 switch.

There is also a g behind it, such as 3560g, which is a gigabit switch.

The 3550 is an older version of the Layer 3 switch; It has now been discontinued; The 3560 is a replacement for the 3550.

Cisco's old and new products The larger the number, the more high-end.

3550 is no longer produced, it's an old thing.

Cisco's equipment is mainly network products, including routers, switches, firewalls, etc. Cisco starts with routers, WS-C starts with switches, and ASA starts with firewalls. These are the main classifications.

Cisco iOS Correspondence Feature Type:

You will compare the model with the real thing or the real thing, and then combine it with the performance parameters, and the more you will know.

"And make sure that this port can access all the VLAN ...... on both switches”

2960 is a second-floor device, which is impossible!

There seems to be a problem with the problem, it can't be achieved just by subnet division, and you have a Layer 2 switch, how can the interface have an IP address?

If it is the IP address configured by the upstream device of the interface, since it is necessary to ensure that a network segment can access the external network and the internal network at the same time, and there is no route, the internal and external network must be the same network segment, right? This external network is an automatic IP, which means that it is not necessarily the same network segment, not the same network segment, how can the Layer 2 switch realize the cross-network segment routing function?

It's easy. Method 1: The computers of the finance department and the personnel department are divided into different VLANs, so that they can communicate internally, and the departments are not connected, and the network segments of the two departments can be the same section, even if the device address is the same, it will not conflict (VLAN separates the two departments).

Method 2: Do not divide the VLAN, all departments are in the default VLAN1, if you want to do the hidden bend so thick that the internal is not passable, and the departments are not connected, then the two departments can use the network segment that is not connected, and even the switch does not need to be matched.

The picture is too small, you tell me the problem.