سلام
البته شاید سواد ما خیلی زیاد نباشه ولی به نظر برای این شبکه سوئیچ لایه 3 مناسب روی سوئیچ لایه 2 میشه 4026 vlan تعریف کرد ولی فقط به یک interface vlan میشه ip داد ولی در لایه 3 میشه این کار رو برای همه vlan ها انجام داد و default gateway سیستمای شبکه رو این ip گذاشت
In this diagram, a small sample network with the Catalyst 3550 provides interVLAN routing between the various segments. By default, the Catalyst 3550 switch acts as an L2 device with disablement of IP routing. In order to make the switch function as an L3 device and provide interVLAN routing, you must enable IP routing globally.
These VLANs are the three VLANs that the user defines:
VLAN 2—user VLAN
VLAN 3—server VLAN
VLAN 10—management VLAN
The default gateway configuration on each server and host device must be the VLAN interface IP address that corresponds on the 3550. For example, for servers, the default gateway is 10.1.3.1. The access layer switches, which are the Catalyst 2950 and 2948G, are trunked to the Catalyst 3550 switch.