|HWIC problem

Ahmed Chowdhury · ‎04-05-2010

hi its tanvi,

i have a 2821 router with two HWIC card.the prob is that when i connected with one port of 1st HWIC then it works fine.but i cant connect or ping one port of 2nd HWIC.it seems that when 1st HWIC is connected then 2nd HWIC card acts as standby or somthing. there r some people who provides me the solution of Stacking but i dont want to do that.is there any way to work with the two HWIC card simultaneously without stacking.if u have any suggestions then pls provide me.it wiil be a great help. thanks in advanceeeeee...............

Leo Laohoo · ‎04-05-2010

Can you tell us what HWIC you are having problems with? What is the IOS version? What is the result during the bootup of the router?

Ahmed Chowdhury · ‎04-05-2010

Its an HWIC-4ESW card. IOS 12.4 or later and when i put sh ip int br then it show all the HWIC ports(4 ports*2 HWIC=8 ports).

glen.grant · ‎04-06-2010

You have to stack or it won't work.

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.

•Maximum traffic for a secure MAC address is 8 Mb/s.