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Csico Wide Area Application Engine 7326 Hardware Installation Guide
OL-6831-02
Chapter1 Introducing the Cisco Wide Area Application Engine
Hardware Features
The WAAS software defines two new interface types: A group interface that
represents an inline pair grouping and a port interface that represents the
individual port. These interfaces are referred to as inlineGroup and inlinePort,
respectively.
InlineGroup interfaces are numbered using the format slot/group. The slot number
is the slot in which the adapter is inserted. (In the WAE 500 series and 600 series
appliances, the adapter must be installed in slot 1 only.) The group number is
either 0 or 1 (each adapter has 2 group pairs). The group number is displayed on
the adapter label.
InlinePort interfaces are numbered slot/group/lan or slot/group/wan. The last
attribute is the LAN or WAN designator.
The inline network adapter also includes an onboard programmable Watch Dog
Timer (WDT) controller. You can set the time to wait after a failure event, such as
a power outage or a kernel crash, before the unit begins to operate in mechanical
bypass mode. In mechanical bypass mode, traffic is bridged between the LAN and
WAN ports of each group. Mechanical bypass mode prevents the WAE from
becoming a single point of failure and allows traffic to continue to flow between
the router and the client while it passes through an unresponsive WAE without
being processed.
For more information about configuring the inline network adapter, see the Cisco
Wide Area Application Services Configuration Guide.