This topic describes the virtual management interface that enables management access to the Cisco 8000 Series Router from a single address.
The virtual management interface is a management configuration that
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provides single-address access to a router with a management network without prior knowledge of which RP is active
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persists across route switch processor failovers, and
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shares a common subnet with management Ethernet interfaces on both the RPs.
On a router where each RP has multiple management Ethernet interfaces, the virtual IPv4 address maps to the management Ethernet interface on the active RP that shares the same IP subnet.