Ethernet – Collisions

Posted on May 6, 2011. Filed under: Uncategorized | Tags: , |


Interfaces operate at half-duplex when connected to a shared ethernet segment (collision domain).

When an inteface in half-duplex mode is receiving a frame, it may buffer a frame being transmitted at the same time.  This will be displayed as a deferred frame when looking at the interface statistics.

Auto speed/duplex negotiation is the default, to deactivate it you can manually set speed/duplex.  Speed must be set before duplex otherwise an error is displayed.

If auto-negotiation is disabled on one end, the Cisco switch will default to half duplex for 10/100M, and full duplex for 1G.

Advertisements

Make a Comment

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

Liked it here?
Why not try sites on the blogroll...

%d bloggers like this: