Since all ports on a switch are enabled by default, there is usually no IP address configured on its interfaces. IP addresses aren't needed on a switch. The only reason we would set an IP address, mask, and default gateway is for management purposes. But from yesterday many users (LAN and Wifi) are facing issue as they are getting disconnected from network due to not getting any ip via DHCP from core switch. When static ip is given there is no issue. You'll need a terminal emulator like PuTTY, Tera Term, or HyperTerminal to interact with the switch. SSH (Secure Shell): If the switch is already configured. In this scenario, IP addresses of the interfaces connecting the core switch to the BRASs and firewalls and OSPF need to be configured on the core switch, so as to implement connectivity between the user network to egress network through the core switch. I believe I may be missing something. -SVI are created on core -Vlans are created and access ports are configured with the respective vlans on the access.
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