An internetInternet router or switch (often called a “network element”) is a collection of network ports of various types (Ethernet, ATM, SONET, etc.) interconnected by switching hardware and software ...
VRFs are to Layer 3 as VLANs are to Layer 2 and delimit the domain of an IP network within a router. The Cisco website has a more formal definition: VRF–A VPN Routing/Forwarding instance. A VRF ...
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