Unknown MAC Address

ivelasco · ‎01-26-2009

Hi, I have a Catalyst 6509 running CatOS. I would like to know if the MAC address 00-d0-00-59-67-ff that appears when I type the "show module" command is a multicast MAC Address and what is it for?.

mxswt_idf16a01# (enable) show module

Mod Slot Ports Module-Type Model Sub Status

--- ---- ----- ------------------------- ------------------- --- --------

1 1 2 1000BaseX Supervisor WS-X6K-SUP1A-2GE yes ok

15 1 1 Multilayer Switch Feature WS-F6K-MSFC no ok

2 2 48 10/100/1000BaseT Ethernet WS-X6148A-GE-TX no ok

3 3 48 10/100/1000BaseT Ethernet WS-X6148A-GE-TX no ok

4 4 48 10/100/1000BaseT Ethernet WS-X6148-GE-TX no ok

7 7 8 1000BaseX Ethernet WS-X6408-GBIC no ok

Mod Module-Name Serial-Num

--- -------------------- -----------

1 SAD0351054J

15 SAD035101C5

2 SAL11391SP7

3 SAD1202014S

4 SAL1131WERY

7 SAD05060WUL

Mod MAC-Address(es) Hw Fw Sw

--- -------------------------------------- ------ ---------- -----------------

1 00-d0-bc-f1-ef-3a to 00-d0-bc-f1-ef-3b 1.0 5.2(1) 8.5(3)

00-d0-bc-f1-ef-38 to 00-d0-bc-f1-ef-39

00-d0-00-59-64-00 to 00-d0-00-59-67-ff

15 00-d0-bc-f1-ef-3c to 00-d0-bc-f1-ef-7b 1.2 12.1(13)E1 12.1(13)E17

2 00-1d-a2-4a-c9-60 to 00-1d-a2-4a-c9-8f 1.6 8.4(1) 8.5(3)

3 00-1e-be-9c-dc-10 to 00-1e-be-9c-dc-3f 1.6 8.4(1) 8.5(3)

4 00-07-0e-14-4b-50 to 00-07-0e-14-4b-7f 7.2 7.2(1) 8.5(3)

7 00-02-fc-26-24-c4 to 00-02-fc-26-24-cb 2.6 5.4(2) 8.5(3)

Mod Sub-Type Sub-Model Sub-Serial Sub-Hw Sub-Sw

--- ----------------------- ------------------- ----------- ------ ------

1 L3 Switching Engine WS-F6K-PFC SAD035100A2 1.0

mxswt_idf16a01# (enable)

Besides I want to know why does this MAC Address appears when I type the "show cam 00-d0-00-59-67-ff" command on the Destination Port 1/3, if this module is a Supervisor WS-X6K-SUP1A-2GE with just 2 gigabit ports.

mxswt_idf16a01# show cam 00-d0-00-59-67-ff

* = Static Entry. + = Permanent Entry. # = System Entry. R = Router Entry.

X = Port Security Entry $ = Dot1x Security Entry M = Mac-Auth-Bypass Entry

VLAN Dest MAC/Route Des [CoS] Destination Ports or VCs / [Protocol Type]

---- ------------------ ----- -------------------------------------------

495 00-d0-00-59-67-ff 1/1 [ALL]

905 00-d0-00-59-67-ff 1/1 [ALL]

444 00-d0-00-59-67-ff 1/1 [ALL]

451 00-d0-00-59-67-ff 1/1 [ALL]

520 00-d0-00-59-67-ff 1/1 [ALL]

53 00-d0-00-59-67-ff 1/1 [ALL]

99 00-d0-00-59-67-ff 1/2 [ALL]

2 00-d0-00-59-67-ff # 1/3

104 00-d0-00-59-67-ff # 1/3

Total Matching CAM Entries Displayed = 9

Thank you.

Giuseppe Larosa · ‎01-26-2009

Hello Irene,

the MAC address is part of the supervisor block of mac addresses see from sh module

00-d0-00-59-64-00 to 00-d0-00-59-67-ff

it is on module 1 the supervisor.

I'm not sure but port 1/3 could be an internal port to backplane or better to PFC.

on supervisor 2 in hybrid mode I remember to have seen port 15/1 to MSFC daughter card

16/1 to MSFC installed in second supervisor.

So this could be an explanation like 15/1 is not a physical port that is accessible from outside this port 1/3 can be the way to access some daughter card for example the PFC

Mod Sub-Type Sub-Model Sub-Serial Sub-Hw Sub-Sw

--- ----------------------- ------------------- ----------- ------ ------

1 L3 Switching Engine WS-F6K-PFC SAD035100A2 1.0

you have a slot 15 that probably is a routing module stand alone (MSM I think it is called)

Hope to help

Giuseppe

ivelasco · ‎01-28-2009

Hello Giuseppe.

I apreciate your answer. I would like to know what does this supervisor block of mac addresses do? or what is the principal function for this?

00-d0-00-59-64-00 to 00-d0-00-59-67-ff