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Simple MAC question

Hello,

This is my first post. I am a newbie to networking technolgy so be gentle with me.

We have a series of SG 300 network switches. I login through the web page to

find out more the MAC addresses. The issue here is I am trying to hunt down

a pesky MAC address which holds the same IP address and causes conflict

with another machine. I am hoping through the port mapping under the "Mac Address Table"

I can identify the port and thus the machine using it.

 

Strangely, I can see the MAC address in a few switches under the "Mac Address Table" ->

"Dynamic Addresses" but only under the interface "GE1". It is *never* in any of the GE2 to

GE24 ports.  What exactly does "GE1" mean in this context?

Another strange thing is this MAC address actually belongs to a machine that

is never *on* when the conflict occurs.

 

Hope someone can shed some light on this issue I am facing. Thanks!

 

1 REPLY
Green

Hi,May be you could draw it

Hi,

May be you could draw it your switch toplogoy.

Is the interconnecting interface Gigabit Ethernet port 1.
The switch will lear addresses from other switches its interconnecting link
which may be GE1.

Do you have a radial/star topology.

SW1 (GE1) ------ SW 10 ----------(GE1) SW2
SW3 (GE1) -------|   |-----------(GE1) SW4
SW5 (GE1) --------| |------------(GE1) SW6

The offending address will be on one of the switches
on a port other than GE1

Hope this helps
Regards
Alex

Regards, Alex. Please rate useful posts.
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