Mailing List Archive

Show fdb should show you the forwarding table. Not sure why it's not.

On 12/17/10, Youssef Ghorbal <youssef.ghorbal@gmail.com> wrote:
> Hello,
>
> I know this is a rather stupid question but is their any way to list
> the mac address of a given switch port ?
> I've already tried :
> - show switch detail : I get only the system mac
> - show fdb and show fdb permanent : nothing is listed
> - show ports detail : I get only the port state and some properties
> but no mac is shown
>
> Thanks for your assistance.
>
> Youssef Ghorbal
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On Sat, Dec 18, 2010 at 1:40 AM, Bartek Raszczyk
<bartek.raszczyk@gmail.com> wrote:
> Hi Youssef,
>
> this works for me:

[...]

> switch4.thn.1 # sh fdb ports 9:11
> Mac                     Vlan       Age  Flags       Port / Virtual Port List
> -----------------------------------------------------------------------------
> 00:12:b2:fa:3c:41    Default(0001) 0024 d m          9:11

I think that this mac address is the one learned by the switch on the
port 9:11. It's not what I'm looking for.
What's I'm missing is the mac address "on the switch" of the 9:11 port.

On a Cisco switch every port has it's own mac address. Maybe this is
not the case on an Extreme switch.

Youssef Ghorbal

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Hi,

Did you try:

core4-TC2.1 # sho iparp vlan "core_vlan1"
VR Destination Mac Age Static VLAN VID Port
VR-Default 178.249.xyz.1 00:04:96:1e:cc:60 0 NO core_vlan1 101 3
VR-Default 178.249.xyz.2 00:04:96:51:dd:66 2 NO core_vlan1 101 3
VR-Default 178.249.xyz.3 00:04:96:28:ff:df 4 NO core_vlan1 101 3
VR-Default 178.249.xyz.12 00:1a:a0:10:ee:5b 4 NO core_vlan1 101 3

That is not including the IP and MAC of the switch itself.

However if you do a show switch you will see the mac of the switch itself.

core4-TC2.2 # sho switch

SysName: core4-TC2
SysLocation: TeleCity2-Amsterdam
SysContact: noc@domain
System MAC: 00:04:96:37:bb:AC
System Type: X480-24x

Regards,
Erik Bais


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Hi Youssef,

What you are looping for (system Mac @ per port) was only for internal
use (for STP port priority for example) on Cisco Catalyst, but the new
Catalyst don't have anymore theses System port Mac @.

On Extreme switches this never existed because their conception were
newer. Imagine the MAC @ consumption (a 48 ports switch meant 48 Mac @
+ for every virtual interface)!

What is exactly your need?

Regards, Fabian.
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Dear all,

I believe Youssef is checking if EXTR switches has unique MAC address for
each and every port.
It seems that EXTR doesn't have that as what Fabian has explained.
It only uses its System MAC.

Cheers,
Changjie

On Sat, Dec 18, 2010 at 11:10 PM, Fabian Extreme <fabian.extr@gmail.com>wrote:

> Hi Youssef,
>
> What you are looping for (system Mac @ per port) was only for internal
> use (for STP port priority for example) on Cisco Catalyst, but the new
> Catalyst don't have anymore theses System port Mac @.
>
> On Extreme switches this never existed because their conception were
> newer. Imagine the MAC @ consumption (a 48 ports switch meant 48 Mac @
> + for every virtual interface)!
>
> What is exactly your need?
>
> Regards, Fabian.
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> extreme-nsp mailing list
> extreme-nsp@puck.nether.net
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