| .. _l3: |
| |
| ======= |
| Layer 3 |
| ======= |
| |
| This section identifies the features associated with Layer 3: |
| |
| IP Layer |
| -------- |
| * ICMP |
| * IPv4 |
| * IPv6 |
| * IPSEC |
| * Link Local Addressing |
| |
| MultiCast |
| --------- |
| * Multicast FiB |
| * IGMP |
| |
| Virtual Routing and forwarding (VRF) |
| ------------------------------------ |
| * VRF scaling, thousands of tables. |
| * Controlled cross-VRF lookups |
| |
| Multi-path |
| ---------- |
| * Equal Cost Multi Path (ECMP) |
| * Unequal Cost Multi Path (UCMP) |
| |
| IPv4 |
| ---- |
| * ARP |
| * ARP Proxy |
| * ARP Snooping |
| |
| IPv6 |
| ---- |
| * Neighbour discovery (ND) |
| * ND Proxy |
| * Router Advertisement |
| * Segment Routing |
| * Distributed Virtual Routing Resolution |
| |
| Forwarding Information Base (FIB) |
| --------------------------------- |
| |
| * Hierarchical FIB |
| * Memory efficient |
| * Multi-million entry scalable |
| * Lockless/concurrent updates |
| * Recursive lookups |
| * Next hop failure detection |
| * Shared FIB adjacencies |
| * Multicast support |
| * MPLS support |