What Are The Layer 3 Protocols?
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The most commonly used layer 3 protocols are:
–IP (Internet Protocol)
–ICMP (Internet Control Message Protocol)
–IGMP (Internet Group Management Protocol)
–IPv6 (Internet Protocol Version 6)
–Routing Protocols (e.g. RIP, OSPF, BGP)
–IPsec –GRE (Generic Routing Encapsulation)
–DVMRP (Distance Vector Multicast Routing Protocol)
–L2TP (Layer 2 Tunneling Protocol)
The layer 3 protocols are:
1. IP (Internet Protocol)
2. ICMP (Internet Control Message Protocol)
3. IGMP (Internet Group Management Protocol)
4. ARP (Address Resolution Protocol)
5. RARP (Reverse Address Resolution Protocol)
6. RIP (Routing Information Protocol)
7. OSPF (Open Shortest Path First)
8. BGP (Border Gateway Protocol)
9. LDP (Label Distribution Protocol)
10. IS-IS (Intermediate System to Intermediate System)
11. VRRP (Virtual Router Redundancy Protocol)
12. PIM (Protocol Independent Multicast)
13. RSVP (Resource Reservation Protocol)