Interfaces; Management Interface - Cisco OL-8335-02 Configuration Manual

Chapter 3 Configuring Ports and Interfaces

Interfaces

An interface is a logical entity on the controller. An interface has multiple parameters associated with
it, including an IP address, default-gateway (for the IP subnet), primary physical port, secondary
physical port, VLAN identifier, and DHCP server.
These five types of interfaces are available on the controller. Four of these are static and are configured
at setup time:
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Each interface is mapped to at least one primary port, and some interfaces (management and dynamic)
can be mapped to an optional secondary (or backup) port. If the primary port for an interface fails, the
interface automatically moves to the backup port. In addition, multiple interfaces can be mapped to a
single controller port.
Note Refer to the
to dynamically map the interfaces to a single port channel rather than having to configure primary and
secondary ports for each interface.

Management Interface

The management interface is the default interface for in-band management of the controller and
connectivity to enterprise services such as AAA servers. The management interface has the only
consistently "pingable" in-band interface IP address on the controller. You can access the controller's
GUI by entering the controller's management interface IP address in Internet Explorer's Address field.
The management interface is also used for Layer 2 communications between the controller and Cisco
1000 series lightweight access points. It must be assigned to distribution system port 1 but can also be
mapped to a backup port and can be assigned to WLANs if desired. It may be on the same VLAN or IP
subnet as the AP-manager interface. However, the management interface can also communicate through
the other distribution system ports as follows:
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When LWAPP communications are set to Layer 2 (same subnet) mode, the controller requires one
management interface to control all inter-controller and all controller-to-access point communications,
regardless of the number of ports. When LWAPP communications are set to Layer 3 (different subnet)
mode, the controller requires one management interface to control all inter-controller communications
and one AP-manager interface to control all controller-to-access point communications, regardless of the
number of ports.
OL-8335-02
Management interface (Static and configured at setup time; mandatory)
AP-manager interface (When using Layer 3 LWAPP, static and configured at setup time; mandatory)
Virtual interface (Static and configured at setup time; mandatory)
Service-port interface (Static and configured at setup time; optional)
Dynamic interface (User-defined)
"Enabling Link Aggregation" section on page 3-27
Sends messages through the Layer 2 network to autodiscover and communicate with other
controllers through all distribution system ports.
Listens across the Layer 2 network for Cisco 1000 series lightweight access point LWAPP polling
messages to autodiscover, associate to, and communicate with as many Cisco 1000 series
lightweight access points as possible.
Overview of Ports and Interfaces
if you want to configure the controller
Cisco Wireless LAN Controller Configuration Guide
3-5