Cisco Wide Area Application Engine 612 Hardware Installation Manual page 38

Hardware Features
If you are connecting a WAE inline appliance between two devices using Gigabit
Ethernet, you can use either straight-through cables, crossover cables, or any
combination of the two cable types, regardless of the type of device. However, for
consistency, we recommend that you use straight-through cables for all Gigabit
Ethernet connections.
Table 1-8
you are using Gigabit Ethernet end to end.
Table 1-8
Connection
Switch to switch (no WAE)
Switch to router (no WAE)
Router to router (no WAE)
Switch to WAE and
WAE to Router
Switch to WAE and
WAE to Switch
Router to WAE and
WAE to Router
WAE to WAE
Some switches support automatic medium-dependent interface crossover
(MDIX). You can configure MDIX by using the mdix auto global configuration
switch command. If your switch supports MDIX, you do not need to follow these
cabling rules because MDIX automatically adjusts transmit and receive pairs
when an incorrect cable type (crossover or straight-through) is installed on a
10/100 Fast Ethernet port. However, when you configure MDIX, you must also
configure the port to use autosense (not manual selection of speed/duplex).
If you are connecting to Fast Ethernet ports on both the LAN and the WAN sides
Caution
of the WAE inline appliance, you must consider the types of devices that are being
connected, and you must use the correct cables. You must follow these cabling
Cisco Wide Area Application Engine 512 and 612 Hardware Installation Guide
1-18
Chapter 1
shows the cable requirements for WAE and non-WAE connections when
Cable Requirements for WAE Connections Using Gigabit
Ethernet
Introducing the Cisco Wide Area Application Engine
Required Cable
Crossover or Straight-through
Crossover or Straight-through
Crossover or Straight-through
Crossover or Straight-through
Crossover or Straight-through
Crossover or Straight-through
Crossover or Straight-through
Crossover or Straight-through
Crossover or Straight-through
Crossover or Straight-through
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