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Contents
Contents
The following sections provide information about the Cisco EtherSwitch HWICs.
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Prerequisites for EtherSwitch HWICs
The following are prerequisites to configuring EtherSwitch HWICs:
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Restrictions for EtherSwitch HWICs
The following restrictions apply to the Cisco HWIC-4ESW and the Cisco HWIC-D-9ESW EtherSwitch
HWICs:
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Book Title
2
Prerequisites for EtherSwitch HWICs, page 2
Restrictions for EtherSwitch HWICs, page 2
How to Configure EtherSwitch HWICs, page 5
Additional References, page 116
Command Reference, page 117
Configuration of IP routing. (Refer to the Cisco IOS IP Configuration Guide.)
Use of the Cisco IOS T release, beginning with Release 12.3(8)T4 or later for Cisco HWIC-4ESW
and Cisco HWIC-D-9ESW support. (Refer to the Cisco IOS documentation.)
No more than two Ethernet Switch HWICs or network modules may be installed in a host router.
Multiple Ethernet Switch HWICs or network modules installed in a host router will not act
independently of each other. They must be stacked, as they will not work at all otherwise.
The ports of a Cisco EtherSwitch HWIC must NOT be connected to the Fast Ethernet/Gigabit
onboard ports of the router.
There is no inline power on the ninth port (port 8) of the HWIC-D-9ESW card.
There is no Auto MDIX support on the ninth port (port 8) of the HWIC-D-9ESW card when either
speed or duplex is not set to auto.
There is no support for online insertion/removal (OIR) of the EtherSwitch HWICs.
When Ethernet Switches have been installed and configured in a host router, OIR of the
CompactFlash memory card in the router must not occur. OIR of the CompactFlash memory card
will compromise the configuration of the Ethernet Switches.
VTP pruning is not supported.
There is a limit of 200 secure MAC addresses per module that can be supported by an EtherSwitch
HWIC.
Cisco HWIC-4ESW and HWIC-D-9ESW EtherSwitch Interface Cards
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