Cisco Cisco Aironet 350 Mini-PCI Wireless LAN Client Adapter Guia Do Desenho
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Enterprise Mobility 4.1 Design Guide
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Chapter 12 Cisco Unified Wireless and Mobile IP
Roaming on a Mobile IP-enabled Network
best location is directly off the core with the centralized WLCs. If there is a case where Mobile IP is
being used in a distributed WLC placement network, the HA should be placed at a aggregation point in
the network that best minimizes the links between itself and the WLCs.
being used in a distributed WLC placement network, the HA should be placed at a aggregation point in
the network that best minimizes the links between itself and the WLCs.
When a Mobile IP Client is roaming on a Cisco Unified Wireless Network, it maintains the same DHCP
IP address while roaming, allowing it to maintain the same CCoA address. The Cisco Unified Wireless
Network handles the underlying mobility and the Mobile IP Client does not see any changes as it roams
from AP to AP. To the Mobile IP Client, it is as if it is roaming on a single large subnet. Accordingly,
nothing changes at the Mobile IP Client level until it roams off of the wireless network.
IP address while roaming, allowing it to maintain the same CCoA address. The Cisco Unified Wireless
Network handles the underlying mobility and the Mobile IP Client does not see any changes as it roams
from AP to AP. To the Mobile IP Client, it is as if it is roaming on a single large subnet. Accordingly,
nothing changes at the Mobile IP Client level until it roams off of the wireless network.
Note
CCoA mode for the Mobile IP client is recommended on the Cisco Unified Wireless Network because
of unwanted multicast traffic over the shared wireless network when multicast is enabled at the WLC.
Because multicast traffic is disabled at the WLC by default, there is no requirement for FAs on the
wireless network. See
of unwanted multicast traffic over the shared wireless network when multicast is enabled at the WLC.
Because multicast traffic is disabled at the WLC by default, there is no requirement for FAs on the
wireless network. See
Chapter 6, “Cisco Unified Wireless Multicast Design,”
for more information about
the multicast traffic on a Cisco Unified Wireless Network.