RE: Query about Micrel Kendin switches

["George Joseph" <gtj.member@xxxxxxxxxx>]

Oh, no kidding.  PROMISCUOUS mode is pointless on a device that sits behind
the KS (or any other) switch.  You'll never see unicast packets that aren't
destined for that specific mac address because the KS won't forward them.
You should see broadcast packets however.  Try an arping.

-----Original Message-----
From: Erik Mouw [mailto:erik@xxxxxxxxxxxx] 
Sent: Friday, January 28, 2005 3:51 AM
To: Vanitha Ramaswami
Cc: 'George Joseph'; linux-arm@xxxxxxxxxxxxxxxxxxxxxx
Subject: Re: Query about Micrel Kendin switches


On Fri, Jan 28, 2005 at 03:48:53PM -0000, Vanitha Ramaswami wrote:
> My setup is like this, I have connected 2 of our custom IXP425 units to an

> Ethernet Hub and a PC is also connected to the ethernet hub.I have put the

> IXP1 interface in PROMISC mode. I am running an application in IXP425 in 
> PROMISCUOUS mode in-order to capture all the packets that is received on 
> IXP1 interface, i dont see the packets sent by the PC connected to the 
> Ethernet Hub by both of the IXP1 interfaces. Only one of the IXP425 
> receives it.

According to the product brief[1], the KS8995X is a *switch and* not a
*hub*. The kind of behaviour you see is completely normal for ethernet
*switches*.


Erik

[1] http://www.micrel.com/_PDF/Ethernet/ks8995x_pb.pdf

-- 
----  Erik Mouw  ----  www.bitwizard.nl  ----  +31 15 2600 998  ----



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