Configuration Guide Vol. 1


3.11.2 Maximum number of multihomed subnets

In a LAN multihomed connection, multiple IPv4 or IPv6 addresses are assigned to the same interface.

<Structure of this section>

(1) For IPv4

The following table describes the maximum number of multihomed subnets for IPv4.

Table 3-56: Max. subnets for multihoming (IPv4)

Model

Number of multihomed subnets

(per interface)

All models

256

(2) For IPv6

The table below describes the maximum number of multihomed subnets for IPv6. This maximum includes the number of link-local addresses. An interface must always be assigned one link-local address. Therefore, if only IPv6 global addresses are assigned to all interfaces, the actual number of IPv6 addresses assigned on the switch will be 8, which is the sum of the value given in the table plus one automatically generated IPv6 link-local address.

Table 3-57: Max. subnets for multihoming (for IPv6)

Model

Number of multihomed subnets

(per interface)

All models

7