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MAC address and switch ports

Does each switchport on a catalyst 4506 switch have its own MAC address?


Hall of Fame Super Blue

Re: MAC address and switch ports


To be honest off the top of my head i'm not sure but i have just tested on a 3550 as this is the only switch i have access to and

1) all the vlan interfaces use the same mac-address

2) all the physical ports have different mac-addresses

Simplest way to check, assuming you have access to 4500 is "sh interface"


Re: MAC address and switch ports

Thanks.....So each physical port has its own you know what command I can use to get those addresses using CATOS..... show port ???


Hall of Fame Super Blue

Re: MAC address and switch ports


"So each physical port has its own MAC-Address" - well it does on a 3550.

Try "sh port mac-address" on your switch.


Re: MAC address and switch ports

Nope that is not an option.

4506 (enable) show port ?

auxiliaryvlan Show port auxiliary vlan information

cdp Show port CDP information

capabilities Show port capabilities

channel Show port channel information

counters Show port counters

debounce Show port link debounce timer

dot1x Show port dot1x information

errdisable-timeout Show port errdisable-timeout information

flowcontrol Show port traffic flowcontrol

ifindex Show port IfIndex information

inlinepower Show inline power for port(s)

lacp-channel Show LACP channel info by physical port

mac Show port MAC counters

negotiation Show port negotiation

protocol Show port protocol membership

security Show port security information

spantree Show port spantree information

status Show port status

trap Show port trap information

trunk Show port trunk information

unicast-flood Show port flooding

vtp Show port vtp status

Module number

Module number and Port number(s)

| Output modifiers


Hall of Fame Super Blue

Re: MAC address and switch ports


Sorry, took that from a 6500 command reference. What version of CatOS are you running on the the 4500 ?


Re: MAC address and switch ports

Sorry for the delay in getting back to you...and thanks for your help.

I am running cat4000-k8.8-1-1.bin

I have been trying to find a command that would yeild that information so any help would be great.


Re: MAC address and switch ports

I found it....

When you do a show mod it gives the information as follows

Mod MAC-Address(es) Hw Fw Sw

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

1 00-0e-38-8c-0b-40 to 00-0e-38-8c-0b-7f 6.0 6.1(5) 8.1(1)

2 00-0d-29-db-d1-a0 to 00-0d-29-db-d1-cf 1.1

3 00-02-fd-55-a7-20 to 00-02-fd-55-a7-4f 2.3

4 00-07-eb-a1-1c-30 to 00-07-eb-a1-1c-5f 3.0

5 00-b0-64-64-f0-60 to 00-b0-64-64-f0-8f 2.3

I can then get the info from that.