Aggregate And Redundant Interfaces - Aerohive AP330 User Manual

The ETH0 port can receive PoE through an Ethernet cable connected to PSE that is 802.3af- or
802.3at-compatible. Such equipment can be embedded in a switch or router, or it can come from
purpose-built devices that inject power into the Ethernet line en route to the AP. Aerohive provides several
PoE injectors as accessories that you can order: AH-ACC-INJ-30W-EU, AH-ACC-INJ-30W-UK,
AH-ACC-INJ-30W-US, AH-ACC-INJ-30W-AU, and AH-ACC-INJ-30W-IL. If an Aerohive AP is connected to both
an AC power source and PSE, the AC power source takes priority. If the device loses power from that source,
it automatically switches to PoE. If the AC power comes back online, the AP automatically switches back to
AC. Each time the AP switches from one power source to another, it must reboot.
The two Ethernet interfaces can be configured as aggregate interfaces for increased throughput and
redundant interfaces for increased reliability. For more information, see
Interfaces" on page 11.
Through the RJ-45 console port, you can make a serial connection between your management system and
the AP. The pin-to-signal mapping of the RJ-45 console port is shown in
connection details for the AP330 and AP350 are shown in

Aggregate and Redundant Interfaces

By default ETH0 and ETH1 act as two individual Ethernet interfaces. When both interfaces are connected to
the network and are in backhaul mode, the AP transmits broadcast traffic only through ETH0. The AP
transmits broadcast traffic through ETH1 only when ETH0 does not have network connectivity. When both
Ethernet interfaces are connected to the network and are in access mode, then the AP transmits broadcast
traffic through all the access interfaces: ETH0, ETH1, and all wireless subinterfaces in access mode.
In addition to using ETH0 and ETH1 as individual interfaces, you can combine them into an aggregate
interface (agg0) to increase throughput, or combine them into a redundant interface (red0) to increase
reliability. The logical red0 and agg0 interfaces support all the settings that you can configure for Ethernet
interfaces except those pertaining to physical link characteristics such as link speed. See the sections below
for configuration information.
Aggregate Interface
You can increase throughput onto the wired network by combining ETH0 and ETH1 into a single logically
aggregated interface called "agg0". The aggregate interface effectively doubles the bandwidth that each
physical interface has when used individually. In this configuration, both Ethernet ports actively forward
traffic, the AP applying an internal scheduling mechanism based on the source MAC address of each
packet to send traffic through the aggregate member interfaces. To configure an aggregate interface,
enter the following commands:
interface eth0 bind agg0
interface eth1 bind agg0
In addition to configuring the AP, you must also configure the connecting switch to support EtherChannel.
For example, the following commands bind two physical Ethernet ports—0/1 and 0/2—to the logical
interface port-channel group 1 on a Cisco Catalyst 2900 switch running Cisco IOS 12.2:
Switch#conf t
Switch(config)#interface port-channel 1
Switch(config-if)#switchport mode access
Switch(config-if)#spanning-tree portfast
Switch(config-if)#exit
Switch(config)#interface fastEthernet 0/1
Switch(config-if)#switchport mode access
Switch(config-if)#channel-group 1 mode on
Switch(config-if)#spanning-tree portfast
AP330 and AP350 User Guide
AP330
AND
"Aggregate and Redundant
Figure 2 on page
Figure 3 on page 13).
AP350 P O
RODUCT VERVIEW
10. Cabling and
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