Cisco HWIC-4ESW and HWIC-D-9ESW EtherSwitch Interface Cards
Contents
2
Book Title
Contents
The following sections provide information about the Cisco EtherSwitch HWICs.
• Prerequisites for EtherSwitch HWICs, page 2
• Restrictions for EtherSwitch HWICs, page 2
• Information About EtherSwitch HWICs, page 3
• How to Configure EtherSwitch HWICs, page 5
• Configuration Examples for EtherSwitch HWICs, page 106
• Additional References, page 116
• Command Reference, page 117
Prerequisites for EtherSwitch HWICs
The following are prerequisites to configuring EtherSwitch HWICs:
• 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.)
Restrictions for EtherSwitch HWICs
The following restrictions apply to the Cisco HWIC-4ESW and the Cisco HWIC-D-9ESW EtherSwitch
HWICs:
• 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.