6500 Switch Question

Unanswered Question
Jan 16th, 2008

I am reviewing a config file of a 6500-SW and it shows that there are 5 VLANS configued. When I did a show cdp neighbor details, it only showed the default vlan (VLAN1) and no physical links to any other devices. This switch is offsite and I just got the assignment to analyze the network toplogy and document it. The question is, what command(s) can I used to see what the phyiscal links on this switch is/are?

Your help is very much appreciated,


I have this problem too.
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plumbis000 Wed, 01/16/2008 - 09:03

show ip interface brief

you can also do add "| include up" to only see the active links.

skhirbash Wed, 01/16/2008 - 09:32

Thanks for the prompt response.

I had used the sho ip interface brief command and all the VLANs showed up under the interfaces column but none of the physical interfaces showed up and that's confusing me. I only see all the VLANs when I do sho interfaces, show ip intefaces brief but none of the physical interfaces are displayed.

mahmoodmkl Wed, 01/16/2008 - 09:39


Can u do (sh module) and check what modules are installed in the switch.

After tbat issue sh interfaces status module (module no).



skhirbash Wed, 01/16/2008 - 09:54

Thanks for the reply but those commands didn't work. I can do a show module and received the module name but i the other command wasn't valid (sho int status module #)

plumbis000 Wed, 01/16/2008 - 11:24

You can also just try a "show run" to see the physical interfaces and "show vlan" to see the interface to vlan mappings.

skhirbash Wed, 01/16/2008 - 11:36

I have tried all of those commands and under the interfaces, the VLANs would be displayed but not the physical interfaces. This is a 6500 switch by the way!



skhirbash Wed, 01/16/2008 - 11:53

Here it is:

6500-SW#sho module ?

ContentSwitchingModule CSM SLB module information

6500-SW#sho module con

6500-SW#sho module contentSwitchingModule ?

<1-13> slot where the CSM module resides

all apply to all online CSM modules

6500-SW#sho module contentSwitchingModule all

% Incomplete command.

6500-SW#sho module contentSwitchingModule all ?

arp SLB arp cache listing

capp SLB Content Application Peering Protocol information

conns SLB connection information

dfp SLB DFP manager information

ft SLB ft information

gslb Global Server Load Balancing stats

map SLB map information

memory SLB memory information

natpools SLB client nat pool information

owner SLB owner information

policy SLB policy information

probe SLB probe information

reals SLB real server information

script SLB script information

serverfarms SLB server farm information

static SLB static server NAT information

stats SLB Statistics

status SLB status information

sticky SLB sticky database

tech-support SLB tech debug information

variable SLB environment variables

vlan SLB vlan information

vservers SLB virtual server information

xml-config SLB XML-config information

6500-SW#sho module contentSwitchingModule all

Jon Marshall Wed, 01/16/2008 - 11:58


That doesn't look like the full output of a "sh module". Have you copied exactly what was on the screen.

It looks from the output that you only have a CSM (which is a loadbalancer) in the chassis. If this is the case then that is why you are not seeing any physical interfaces. But you should at least see physcial interfaces for the supervisor module.

A "sh module" from one of my switches looks like this

SZ-JFH-F00-DTE1#sh mod

Mod Ports Card Type Model Serial No.

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

3 16 SFM-capable 16 port 1000mb GBIC WS-X6516-GBIC SAL0728G7ZE

5 2 Supervisor Engine 720 (Active) WS-SUP720-BASE SAD083703U6

6 4 CSM with SSL WS-X6066-SLB-S-K9 SAD083100RY

7 6 Firewall Module WS-SVC-FWM-1 SAD085008T7

8 48 SFM-capable 48 port 10/100/1000mb RJ45 WS-X6548-GE-TX SAD073803J8

9 1 Application Control Engine Module ACE10-6500-K9 SAD11300050

Mod MAC addresses Hw Fw Sw Status

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

3 000d.29fe.5f70 to 000d.29fe.5f7f 5.5 6.3(1) 8.5(0.46)RFW Ok

5 0011.21a1.2cfc to 0011.21a1.2cff 3.1 8.1(3) 12.2(18)SXF6 Ok

6 0012.0060.5d50 to 0012.0060.5d57 1.1 2.1(4) Ok

7 0003.3235.a340 to 0003.3235.a347 3.0 7.2(1) 2.3(2) Ok

8 000d.65ea.1310 to 000d.65ea.133f 5.0 7.2(1) 8.5(0.46)RFW Ok

9 001c.5843.f0fc to 001c.5843.f103 1.6 8.7(0.22)ACE 3.0(0)A1(6.3 Ok

Mod Sub-Module Model Serial Hw Status

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

5 Policy Feature Card 3 WS-F6K-PFC3A SAD083002L9 2.4 Ok

5 MSFC3 Daughterboard WS-SUP720 SAD0834060E 2.3 Ok

Mod Online Diag Status

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

3 Pass

5 Pass

6 Pass

7 Pass

8 Pass

9 Pass


Are you running in hybrid or native mode on your 6500 ?


skhirbash Wed, 01/16/2008 - 12:02

Yes, I copied all the output off of the screen.

I am not sure if the switch was configured in hybrid or native mode! How can I find out?


Jon Marshall Wed, 01/16/2008 - 12:07


Well "show module" should tell you :).

This is confusing because when you do a "sh module" you should at least get the supervisor in the output as well as the CSM.

When you log into the switch can you post the output of a "sh version".

Can you also post the output of "sh cdp neigh" please.


Jon Marshall Wed, 01/16/2008 - 12:11

Sorry i didn't pay enough attention to the output.

Don't type in "sh module ?"

Just type in "sh module" and then hit return and then paste the output.


skhirbash Wed, 01/16/2008 - 13:13

It returns a "% incomplete Command" message after i type sho module

Jon Marshall Wed, 01/16/2008 - 13:28


Okay, it's been a while since i used a 6500 in hybrid mode but i think this is what you have. You need to get onto the layer 2 switch part of the 6500 as i suspect you are on the MSFC.

Can you post the output of a "sh cdp neigh".


skhirbash Wed, 01/16/2008 - 13:52

6500-SW#sho cdp neighbors detail


Device ID: TBA05280230(dha-sw1)

Entry address(es):

IP address:

Platform: WS-C6509, Capabilities: Trans-Bridge Switch IGMP

Interface: Vlan1, Port ID (outgoing port): 15/1

Holdtime : 132 sec

Version :

WS-C6509 Software, Version McpSW: 7.6(11) NmpSW: 7.6(11)

Copyright (c) 1995-2005 by Cisco Systems

advertisement version: 2

VTP Management Domain: 'YYY'

Jon Marshall Wed, 01/16/2008 - 13:55

Try this. From the enable prompt

telnet - hopefully you know the passwords to log onto the supervisor.

If you can log on run the following command

"sh port"

whichh should show you the physical interfaces.

You can also run a "sh module" and you should see a full module list.


skhirbash Wed, 01/16/2008 - 14:05

Thanks Jon. I think that will do the trick. I don't have the supervisor's pwd yet. Once I do, I will use the commands you mentiond go accomplish what I need.

Thanks again,


Jon Marshall Wed, 01/16/2008 - 14:09

No problem. Let us know if you get any more problems.

Apologies for taking so long to get to the point ! - it really is a while since i have used hybrid on a 6500 :)



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