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self port mac address

self port mac address

Gaurav_Madan
New Contributor
Hi

On extreme SummitX 460-48 how do we see MAC address of self port ?

I mean there is one switch mac address ( some vendor call as backplane mac ) which we can see in sh switch etc .
Addition to this ; there should be a MAC for each of 48 ports .. how do i see that ?

"sh fdb < >" will show me mac learn on port ; but i am interested to know self-mac address of each port .

Something like quivalant of "show interface < > | inc bia" in cisco switches .

Thanks
/G

6 REPLIES 6

EtherMAN
Contributor III
yep been that way for 20 years....

Drew_C
Valued Contributor III
Arun is correct. There is only one MAC address assigned to the switch and it is used for all ports. The only exception is on some of our modular chassis switches, but even then only the mgmt port may have a different MAC. All ports use the same one in these systems as well.

Prashanth_KG
Extreme Employee
Hi Gaurav,

You will see the switch1's mac address on both the ports of switch 2.
However, the mac-address would be associated to different vlans.

Sample output:

X670V-48x.14 # sh fdbMac Vlan Age Flags Port / Virtual Port List
------------------------------------------------------------------------------
00:04:96:51:f9:73 test(2000) 0002 d m 5
00:04:96:51:f9:73 Test123(1000) 0005 d m 6

We will have the vlan and the mac association in the mac-table. So, the same mac address will be learnt on the corresponding ports.

Hope this helps!

Gaurav_Madan
New Contributor
Senguttuvan, Arun, :: I do not think that can be true ..

SW1 -1-------------------1- SW2
---2----------------2--

SW1 port 1 : vlan 10 : inte vlan 10 : 10.0.0.1
SW2 port 1 : vlan 10 : inte vlan 10 : 10.0.0.2

SW1 port 2 : vlan 20 : inte vlan 10 : 20.0.0.1
SW2 port 2 : vlan 20 : inte vlan 10 : 20.0.0.2

SW1 #ping 10.0.0.2
SW1 # ping 20.0.0.2

what will be mac learnt on SW2 port 1 and port 2

GTM-P2G8KFN