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FE to Ethernet

maher
Level 1
Level 1

Hi there,

I have one c3640 with FE and 4500 with Ethernet interface.I tried to connect back to back with crosscable and the configuration under c3640 FE interface with duplex half and speed auto.If I push the deplex to full, it will automatically drop the interface status to down.What actually happen when connecting to FE and Ethernet, perhaps on speed 10/100 to 10 Mbps or other related issue?

thanks in advance.

maher

1 Accepted Solution

Accepted Solutions

thisisshanky
Level 11
Level 11

I guess the 4000 ethernet interface is capable of only half duplex transmission. Try setting the speed to 10 Mbps (rather than auto) and duplex half on the 3640 FE interface.

Sankar Nair
UC Solutions Architect
Pacific Northwest | CDW
CCIE Collaboration #17135 Emeritus

View solution in original post

1 Reply 1

thisisshanky
Level 11
Level 11

I guess the 4000 ethernet interface is capable of only half duplex transmission. Try setting the speed to 10 Mbps (rather than auto) and duplex half on the 3640 FE interface.

Sankar Nair
UC Solutions Architect
Pacific Northwest | CDW
CCIE Collaboration #17135 Emeritus
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