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1 Since the total amount of routes that can be offloaded is limited, prefixes with higher netmask are preferred to be forwarded by hardware (e.g., /32, /30, /29, etc.), any other prefixes that do not fit in the HW table will be processed by the CPU. Directly connected hosts are offloaded as /32 (IPv4) or /128 (IPv6) route prefixes, the number of hosts is also limited by max-neighbor-entries in IP Settings / IPv6 Settings.
2 IPv4 and IPv6 routing tables share the same hardware memory.
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7 DX4000/DX8000 switch chips store directly connected hosts, IPv4 /32, and IPv6 /128 route entries in the FDB table rather than the routing table. The HW memory is shared between regular FDB L2 entries (MAC), IPv4, and IPv6 addresses. The number of hosts is also limited by max-neighbor-entries in IP Settings / IPv6 Settings.
8 IPv4 and IPv6 routing tables share the same hardware memory.
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