North American Network Operators Group
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Re: Hardware capture platforms

  • From: Sam Stickland
  • Date: Fri Aug 08 05:48:07 2008
All,

On the subject of turning off mac learning on a switch, I've just discovered this - an unusual way of using RSPAN to force the MAC learning off on Cisco switches:

http://blog.internetworkexpert.com/2008/02/05/turning-switch-into-hub/

# Turn MAC learning on ports Fa0/1 - 3

vtp mode transparent
!
vlan 555
remote-span
!
interface range Fa 0/1 - 3
switchport trunk encapsulation dot1q
switchport mode trunk
switchport trunk allowed vlan 555
switchport trunk native vlan 555

Sam

Sam Stickland wrote:
Lynda wrote:
Warren Kumari wrote:

What I am looking for is: Small enough to live in my notebook bag
(e.g.: 4 port with a wall wart.) Cheap Simple 10/100/1000Mbps

I don't believe that such a thing ever existed. Hubs that did 10/100, certainly, but I've never ever seen a hub that did gig speeds.

Depends what you mean by 'hub' I guess. I thought the term referred to a device that was half-duplex only, and had no address learning. GE has never supported half-duplex.

Sam