Sunday, March 5, 2017

Stacking a Cisco 3750 Switch

I've stacked Cisco 2960 and 3650 switches before but now I was asked to configure and stack a Cisco 3750 switch. The Cisco 3750 has built-in StackWise ports and use a StackWise cable. A Cisco 3750 switch can be stacked with other Cisco 3750 models. Here's a good link that shows the difference between a Cisco 3750-X, Cisco 3750 V2, Cisco 3750-G and Cisco 3750-E switches.

Below is a Cisco 3750 StackWise stacking cable.


There are two StackWise ports (STACK 1 and STACK 2) found at the back of a Cisco 3750 switch which is protected by a plastic cover.



Below is a Full Bandwidth connection setup.



Using driver version 1 for media type 1
Base ethernet MAC Address: f4:7f:35:22:e1:23
Xmodem file system is available.
The password-recovery mechanism is enabled.
Initializing Flash...
mifs[2]: 0 files, 1 directories
mifs[2]: Total bytes     :    3870720
mifs[2]: Bytes used      :       1024
mifs[2]: Bytes available :    3869696
mifs[2]: mifs fsck took 0 seconds.
mifs[3]: 416 files, 8 directories
mifs[3]: Total bytes     :   27998208
mifs[3]: Bytes used      :   13384704
mifs[3]: Bytes available :   14613504
mifs[3]: mifs fsck took 6 seconds.
...done Initializing Flash.
done.
Loading "flash:/c3750-ipbasek9-mz.122-50.SE5/c3750-ipbasek9-mz.122-50.SE5.bin"...@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@

<OUTPUT TRUNCATED>

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
File "flash:/c3750-ipbasek9-mz.122-50.SE5/c3750-ipbasek9-mz.122-50.SE5.bin" uncompressed and

installed, entry point: 0x1000000
executing...

              Restricted Rights Legend

Use, duplication, or disclosure by the Government is
subject to restrictions as set forth in subparagraph
(c) of the Commercial Computer Software - Restricted
Rights clause at FAR sec. 52.227-19 and subparagraph
(c) (1) (ii) of the Rights in Technical Data and Computer
Software clause at DFARS sec. 252.227-7013.

           cisco Systems, Inc.
           170 West Tasman Drive
           San Jose, California 95134-1706



Cisco IOS Software, C3750 Software (C3750-IPBASEK9-M), Version 12.2(50)SE5, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2010 by Cisco Systems, Inc.
Compiled Tue 28-Sep-10 12:56 by prod_rel_team
Image text-base: 0x01000000, data-base: 0x02900000

Initializing flashfs...
Using driver version 1 for media type 1
mifs[3]: 0 files, 1 directories
mifs[3]: Total bytes     : 3870720
mifs[3]: Bytes used      : 1024
mifs[3]: Bytes available : 3869696
mifs[3]: mifs fsck took 1 seconds.
mifs[3]: Initialization complete.

mifs[4]: 416 files, 8 directories
mifs[4]: Total bytes     : 27998208
mifs[4]: Bytes used      : 13384704
mifs[4]: Bytes available : 14613504
mifs[4]: mifs fsck took 0 seconds.
mifs[4]: Initialization complete.

...done Initializing flashfs.
Checking for Bootloader upgrade.. not needed

POST: CPU MIC register Tests : Begin
POST: CPU MIC register Tests : End, Status Passed

POST: PortASIC Memory Tests : Begin
POST: PortASIC Memory Tests : End, Status Passed

POST: CPU MIC interface Loopback Tests : Begin
POST: CPU MIC interface Loopback Tests : End, Status Passed

POST: PortASIC RingLoopback Tests : Begin
POST: PortASIC RingLoopback Tests : End, Status Passed

SM: Detected stack cables at PORT1 PORT2

Waiting for Stack Master Election...
SM: Waiting for other switches in stack to boot...
##################################################################################################

#####################
SM: All possible switches in stack are booted up

front_end/ (directory)
extracting front_end/fe_type_1 (34760 bytes)
extracting front_end/fe_type_2 (78400 bytes)
extracting front_end/front_end_ucode_info (86 bytes)
extracting ucode_info (76 bytes)
POST: Inline Power Controller Tests : Begin
POST: Inline Power Controller Tests : End, Status Passed

POST: PortASIC CAM Subsystem Tests : Begin
POST: PortASIC CAM Subsystem Tests : End, Status Passed


POST: PortASIC Stack Port Loopback Tests : Begin
POST: Found Stack port 2 Down
POST: PortASIC Stack Port Loopback Tests : End, Status Passed

POST: PortASIC Port Loopback Tests : Begin
POST: PortASIC Port Loopback Tests : End, Status Passed

Election Complete
Switch 1 booting as Master
Waiting for Port download...Complete


This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for
compliance with U.S. and local country laws. By using this product you
agree to comply with applicable laws and regulations. If you are unable
to comply with U.S. and local laws, return this product immediately.

A summary of U.S. laws governing Cisco cryptographic products may be found at:
http://www.cisco.com/wwl/export/crypto/tool/stqrg.html

If you require further assistance please contact us by sending email to
export@cisco.com.

cisco WS-C3750V2-24PS (PowerPC405) processor (revision Q0) with 131072K bytes of memory.
Processor board ID FDO1619Y123
Last reset from power-on
1 Virtual Ethernet interface
48 FastEthernet interfaces
4 Gigabit Ethernet interfaces
The password-recovery mechanism is enabled.

512K bytes of flash-simulated non-volatile configuration memory.
Base ethernet MAC Address       : F4:7F:35:22:E1:23
Motherboard assembly number     : 73-11704-13
Power supply part number        : 341-0266-03
Motherboard serial number       : FDO16190ABC
Power supply serial number      : DCA1610HXYZ
Model revision number           : Q0
Motherboard revision number     : A0
Model number                    : WS-C3750V2-24PS-S
System serial number            : FDO1619Y123
Top Assembly Part Number        : 800-31035-05
Top Assembly Revision Number    : B0
Version ID                      : V07
CLEI Code Number                : COMP400ARC
Hardware Board Revision Number  : 0x03


Switch Ports Model              SW Version            SW Image
------ ----- -----              ----------            ----------
*    1 26    WS-C3750V2-24PS    12.2(50)SE5           C3750-IPBASEK9-M
     2 26    WS-C3750V2-24PS    12.2(50)SE5           C3750-IPBASEK9-M


Switch 02
---------
Switch Uptime                   : Unknown
Base ethernet MAC Address       : F4:7F:35:23:33:45
Motherboard assembly number     : 73-11704-13
Power supply part number        : 341-0266-03
Motherboard serial number       : FDO16190JKL
Power supply serial number      : DCA1610HMNO
Model revision number           : Q0
Motherboard revision number     : A0
Model number                    : WS-C3750V2-24PS-S
System serial number            : FDO1619YGHI
Top assembly part number        : 800-31035-05
Top assembly revision number    : B0
Version ID                      : V07
CLEI Code Number                : COMP400ARC



Press RETURN to get started!


*Mar  1 00:02:58.870: %STACKMGR-4-SWITCH_ADDED: Switch 1 has been ADDED to the stack
*Mar  1 00:02:58.870: %STACKMGR-4-SWITCH_ADDED: Switch 2 has been ADDED to the stack
*Mar  1 00:03:08.877: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to down
*Mar  1 00:03:10.262: %SPANTREE-5-EXTENDED_SYSID: Extended SysId enabled for type vlan
*Mar  1 00:03:32.089: %STACKMGR-5-SWITCH_READY: Switch 1 is READY
*Mar  1 00:03:32.089: %STACKMGR-4-STACK_LINK_CHANGE: Stack Port 1 Switch 1 has changed to state UP
*Mar  1 00:03:32.089: %STACKMGR-4-STACK_LINK_CHANGE: Stack Port 2 Switch 1 has changed to state DOWN
*Mar  1 00:03:32.441: %STACKMGR-5-MASTER_READY: Master Switch 1 is READY
*Mar  1 00:03:32.777: %SYS-5-RESTART: System restarted --
Cisco IOS Software, C3750 Software (C3750-IPBASEK9-M), Version 12.2(50)SE5, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2010 by Cisco Systems, Inc.
Compiled Tue 28-Sep-10 12:56 by prod_rel_team
*Mar  1 00:03:37.332: %STACKMGR-5-SWITCH_READY: Switch 2 is READY
*Mar  1 00:03:37.332: %STACKMGR-4-STACK_LINK_CHANGE: Stack Port 1 Switch 2 has changed to state UP
*Mar  1 00:03:37.332: %STACKMGR-4-STACK_LINK_CHANGE: Stack Port 2 Switch 2 has changed to state DOWN
*Mar  1 00:01:24.246: %STACKMGR-4-SWITCH_ADDED: Switch 1 has been ADDED to the stack (Switch-2)
*Mar  1 00:01:24.246: %STACKMGR-4-SWITCH_ADDED: Switch 2 has been ADDED to the stack (Switch-2)
*Mar  1 00:03:35.780: %SPANTREE-5-EXTENDED_SYSID: Extended SysId enabled for type vlan (Switch-2)
*Mar  1 00:03:37.290: %STACKMGR-5-SWITCH_READY: Switch 1 is READY (Switch-2)
*Mar  1 00:03:37.961: %STACKMGR-5-MASTER_READY: Master Switch 1 is READY (Switch-2)     // I BOOTED SWITCH 1 FIRST AND WAITED FOR 5 MINS BEFORE BOOTING SWITCH 2
*Mar  1 00:03:38.019: %STACKMGR-5-SWITCH_READY: Switch 2 is READY (Switch-2)
*Mar  1 00:03:38.179: %SYS-5-RESTART: System restarted -- (Switch-2)
Cisco IOS Software, C3750 Software (C3750-IPBASEK9-M), Version 12.2(50)SE5, RELEASE SOFTWARE (fc1)
(Switch-2)
Technical Support: http://www.cisco.com/techsupport (Switch-2)
Copyright (c) 1986-2010 by Cisco Systems, Inc. (Switch-2)
Compiled Tue 28-Sep-10 12:56 by prod_rel_team (Switch-2)


         --- System Configuration Dialog ---

Enable secret warning
----------------------------------
In order to access the device manager, an enable secret is required
If you enter the initial configuration dialog, you will be prompted for the enable secret
If you choose not to enter the intial configuration dialog, or if you exit setup without setting

the enable secret,
please set an enable secret using the following CLI in configuration mode-
enable secret 0 <cleartext password>
----------------------------------
Would you like to enter the initial configuration dialog? [yes/no]: no
Switch>enable
*Mar  1 00:04:32.688: %LINK-5-CHANGED: Interface Vlan1, changed state to administratively down
Switch#
Switch#show switch
Switch/Stack Mac Address : f47f.3522.e123
                                           H/W   Current
Switch#  Role   Mac Address     Priority Version  State
----------------------------------------------------------
*1       Master f47f.3522.e123     1      0       Ready
 2       Member f47f.3523.3345     1      0       Ready

Switch#show switch stack-ports
  Switch #    Port 1       Port 2
  --------    ------       ------
    1           Ok          Down
    2           Ok          Down

Switch#show switch neighbors
  Switch #    Port 1       Port 2
  --------    ------       ------
      1         2            None
      2         1            None

Switch#show platform stack manager all
Switch/Stack Mac Address : f47f.3522.e123
                                           H/W   Current
Switch#  Role   Mac Address     Priority Version  State
----------------------------------------------------------
*1       Master f47f.3522.e123     1      0       Ready
 2       Member f47f.3523.3345     1      0       Ready



         Stack Port Status             Neighbors
Switch#  Port 1     Port 2           Port 1   Port 2
--------------------------------------------------------
  1        Ok        Down               2      None
  2        Ok        Down               1      None


               Stack Discovery Protocol View
==============================================================


Switch   Active   Role    Current   Sequence   Dirty
Number                    State     Number     Bit
--------------------------------------------------------------------
1        TRUE    Master   Ready       052       FALSE
2        TRUE    Member   Ready       053       FALSE



                 Stack State Machine View
==============================================================

Switch   Master/   Mac Address          Version    Current
Number   Member                          (maj.min)  State
-----------------------------------------------------------
1        Master    f47f.3522.e123          1.41        Ready
2        Member    f47f.3523.3345          1.41        Ready

Last Conflict Parameters

Switch Master/ Cfgd Default Image H/W  # of    Mac Address
Number Member  Prio Config   Type Prio Members
-----------------------------------------------------------------------
 1     Member   1   Yes       4    2   0  f47f.3522.e123
 2     Member   1   Yes       4    2   0  f47f.3523.3345

            Stack Discovery Protocol Counters
        Messages Sent                  Messages Recvd
        UP       DOWN                  UP        DOWN
--------------------------------------------------------
*1: 0000004657 0000000000          0000000000 0000000000
 2: 0000000000 0000000000          0000002748 0000000000
 3: 0000000000 0000000000          0000000000 0000000000
 4: 0000000000 0000000000          0000000000 0000000000
 5: 0000000000 0000000000          0000000000 0000000000
 6: 0000000000 0000000000          0000000000 0000000000
 7: 0000000000 0000000000          0000000000 0000000000
 8: 0000000000 0000000000          0000000000 0000000000
 9: 0000000000 0000000000          0000000000 0000000000


             Misc  Counters
   Counter                      Up          Down
---------------------------------------------------

 Wrong Ver Number: Send:    0000000000    0000000000
 Wrong Ver Number: Recv:    0000000000    0000000000
 Missed Messages:           0000000000    0000000000
 Orphaned Messages          0000000000    0000000000
 Suppressed Messages        0000000000    0000000000
 No Available Messages      0000000006    0000000000
 Link Present               0000000003    0000000000
 Link Not Present           0000000003    0000000001
 Link RxReset               0000000013    0000000010
 Link Sync Stuck Resets     0000000000    0000000000
 Duplicates                 0000002130    0000000000
 RAC Not OK Resets          0000000000
 Switch# of last duplicate  0000000002
 Sequence Number Failures   0000000000
 RAC Not OK Resets          0000000000
 Sync Not OK Resets         0000000031    0000001041
 Switch# of last Failure:   256  Last Difference 0
 Switch Number Conflicts    0
 Stack Changes              6
 Int Stack Link changes     0
 Int Stack Link state       0x0
 Reciprocal Efficiency Changes: Upgrade 0, Downgrade 0
             Resource Counters
-------------------------------------------
 Chunk Alloc's        0000000008
 Chunk Free's         0000000007
 Enqueue Failures:    0000000000
 Null Queue Failures: 0000000000
 Chunk Alloc Errors:  0000000000


           Stack State Machine Counters
   Messages Sent              Messages Recvd
-------------------------------------------------
*1: 0000000000                 0000000000
 2: 0000000008                 0000000008
 3: 0000000000                 0000000000
 4: 0000000000                 0000000000
 5: 0000000000                 0000000000
 6: 0000000000                 0000000000
 7: 0000000000                 0000000000
 8: 0000000000                 0000000000
 9: 0000000000                 0000000000


I still didn't see Switch 3 joining the stack so I tightened its StackWise cable. I looked at the LED status lights and Switch 3 is still sees being the MASTER. I've observed the SYST light was blinking and it took Switch 3 a few of minutes to auto reboot and joined the stack.


Switch#
*Mar  1 00:11:20.123: %STACKMGR-4-STACK_LINK_CHANGE: Stack Port 2 Switch 2 has changed to state UP
*Mar  1 00:11:55.162: %STACKMGR-4-SWITCH_ADDED: Switch 3 has been ADDED to the stack
*Mar  1 00:11:55.128: %STACKMGR-4-SWITCH_ADDED: Switch 3 has been ADDED to the stack (Switch-2)
*Mar  1 00:12:01.546: %STACKMGR-5-SWITCH_READY: Switch 3 is READY
*Mar  1 00:12:01.546: %STACKMGR-4-STACK_LINK_CHANGE: Stack Port 1 Switch 3 has changed to state UP
*Mar  1 00:12:01.546: %STACKMGR-4-STACK_LINK_CHANGE: Stack Port 2 Switch 3 has changed to state DOWN
*Mar  1 00:12:01.512: %STACKMGR-5-SWITCH_READY: Switch 3 is READY (Switch-2)
*Mar  1 00:12:02.863: %STACKMGR-5-SWITCH_READY: Switch 1 is READY (Switch-3)
*Mar  1 00:12:02.980: %STACKMGR-5-MASTER_READY: Master Switch 1 is READY (Switch-3)
*Mar  1 00:12:02.980: %STACKMGR-5-SWITCH_READY: Switch 2 is READY (Switch-3)
*Mar  1 00:12:03.114: %STACKMGR-5-SWITCH_READY: Switch 3 is READY (Switch-3)

Switch#show switch
Switch/Stack Mac Address : f47f.3522.e123
                                           H/W   Current
Switch#  Role   Mac Address     Priority Version  State
----------------------------------------------------------
*1       Master f47f.3522.e123     1      0       Ready
 2       Member f47f.3523.3345    1      0       Ready
 3       Member a418.7554.1678     1      0       Ready

Switch#show switch stack-ports
  Switch #    Port 1       Port 2
  --------    ------       ------
    1           Ok          Down
    2           Ok           Ok
    3           Ok          Down

Switch#show switch neighbors
  Switch #    Port 1       Port 2
  --------    ------       ------
      1         2            None
      2         1             3
      3         2            None

Switch#show platform stack manager all
Switch/Stack Mac Address : f47f.3522.e123
                                           H/W   Current
Switch#  Role   Mac Address     Priority Version  State
----------------------------------------------------------
*1       Master f47f.3522.e123     1      0       Ready
 2       Member f47f.3523.3345     1      0       Ready
 3       Member a418.7554.1678     1      0       Ready


         Stack Port Status             Neighbors
Switch#  Port 1     Port 2           Port 1   Port 2
--------------------------------------------------------
  1        Ok        Down               2      None
  2        Ok         Ok                1        3
  3        Ok        Down               2      None


               Stack Discovery Protocol View
==============================================================


Switch   Active   Role    Current   Sequence   Dirty
Number                    State     Number     Bit
--------------------------------------------------------------------
1        TRUE    Master   Ready       122       FALSE
2        TRUE    Member   Ready       132       FALSE
3        TRUE    Member   Ready       123       FALSE


                 Stack State Machine View
==============================================================

Switch   Master/   Mac Address          Version    Current
Number   Member                          (maj.min)  State
-----------------------------------------------------------
1        Master    f47f.3522.e123         1.41        Ready
2        Member    f47f.3523.3345          1.41        Ready
3        Member    a418.7554.1678          1.41        Ready

Last Conflict Parameters

Switch Master/ Cfgd Default Image H/W  # of    Mac Address
Number Member  Prio Config   Type Prio Members
-----------------------------------------------------------------------
 1     Master   1   Yes       4    2   1  f47f.3522.e123
 2     Member   1   Yes       4    2   0  f47f.3523.3345

            Stack Discovery Protocol Counters
        Messages Sent                  Messages Recvd
        UP       DOWN                  UP        DOWN
--------------------------------------------------------
*1: 0000005883 0000000000          0000000000 0000000000
 2: 0000000000 0000000000          0000003830 0000000000
 3: 0000000000 0000000000          0000000123 0000000000
 4: 0000000000 0000000000          0000000000 0000000000
 5: 0000000000 0000000000          0000000000 0000000000
 6: 0000000000 0000000000          0000000000 0000000000
 7: 0000000000 0000000000          0000000000 0000000000
 8: 0000000000 0000000000          0000000000 0000000000
 9: 0000000000 0000000000          0000000000 0000000000


             Misc  Counters
   Counter                      Up          Down
---------------------------------------------------

 Wrong Ver Number: Send:    0000000000    0000000000
 Wrong Ver Number: Recv:    0000000000    0000000000
 Missed Messages:           0000000000    0000000000
 Orphaned Messages          0000000000    0000000000
 Suppressed Messages        0000000000    0000000000
 No Available Messages      0000000018    0000000000
 Link Present               0000000003    0000000000
 Link Not Present           0000000003    0000000001
 Link RxReset               0000000013    0000000010
 Link Sync Stuck Resets     0000000000    0000000000
 Duplicates                 0000002927    0000000000
 RAC Not OK Resets          0000000000
 Switch# of last duplicate  0000000002
 Sequence Number Failures   0000000000
 RAC Not OK Resets          0000000000
 Sync Not OK Resets         0000000031    0000002614
 Switch# of last Failure:   256  Last Difference 0
 Switch Number Conflicts    0
 Stack Changes              11
 Int Stack Link changes     0
 Int Stack Link state       0x0
 Reciprocal Efficiency Changes: Upgrade 0, Downgrade 0
             Resource Counters
-------------------------------------------
 Chunk Alloc's        0000000015
 Chunk Free's         0000000013
 Enqueue Failures:    0000000000
 Null Queue Failures: 0000000000
 Chunk Alloc Errors:  0000000000


           Stack State Machine Counters
   Messages Sent              Messages Recvd
-------------------------------------------------
*1: 0000000000                 0000000000
 2: 0000000010                 0000000010
 3: 0000000005                 0000000005
 4: 0000000000                 0000000000
 5: 0000000000                 0000000000
 6: 0000000000                 0000000000
 7: 0000000000                 0000000000
 8: 0000000000                 0000000000
 9: 0000000000                 0000000000

Switch#show version
Cisco IOS Software, C3750 Software (C3750-IPBASEK9-M), Version 12.2(50)SE5, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2010 by Cisco Systems, Inc.
Compiled Tue 28-Sep-10 12:56 by prod_rel_team
Image text-base: 0x01000000, data-base: 0x02900000

ROM: Bootstrap program is C3750 boot loader
BOOTLDR: C3750 Boot Loader (C3750-HBOOT-M) Version 12.2(50r)SE, RELEASE SOFTWARE (fc1)

Switch uptime is 21 minutes
System returned to ROM by power-on
System image file is "flash:/c3750-ipbasek9-mz.122-50.SE5/c3750-ipbasek9-mz.122-50.SE5.bin"


This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for
compliance with U.S. and local country laws. By using this product you
agree to comply with applicable laws and regulations. If you are unable
to comply with U.S. and local laws, return this product immediately.

A summary of U.S. laws governing Cisco cryptographic products may be found at:
http://www.cisco.com/wwl/export/crypto/tool/stqrg.html

If you require further assistance please contact us by sending email to
export@cisco.com.

cisco WS-C3750V2-24PS (PowerPC405) processor (revision Q0) with 131072K bytes of memory.
Processor board ID FDO1619Y123
Last reset from power-on
1 Virtual Ethernet interface
72 FastEthernet interfaces
6 Gigabit Ethernet interfaces
The password-recovery mechanism is enabled.

512K bytes of flash-simulated non-volatile configuration memory.
Base ethernet MAC Address       : F4:7F:35:22:E1:23
Motherboard assembly number     : 73-11704-13
Power supply part number        : 341-0266-03
Motherboard serial number       : FDO16190ABC
Power supply serial number      : DCA1610HXYZ
Model revision number           : Q0
Motherboard revision number     : A0
Model number                    : WS-C3750V2-24PS-S
System serial number            : FDO1619Y123
Top Assembly Part Number        : 800-31035-05
Top Assembly Revision Number    : B0
Version ID                      : V07
CLEI Code Number                : COMP400ARC
Hardware Board Revision Number  : 0x03


Switch Ports Model              SW Version            SW Image
------ ----- -----              ----------            ----------
*    1 26    WS-C3750V2-24PS    12.2(50)SE5           C3750-IPBASEK9-M
     2 26    WS-C3750V2-24PS    12.2(50)SE5           C3750-IPBASEK9-M
     3 26    WS-C3750V2-24PS    12.2(50)SE5           C3750-IPBASEK9-M


Switch 02
---------
Switch Uptime                   : 20 minutes
Base ethernet MAC Address       : F4:7F:35:23:33:45
Motherboard assembly number     : 73-11704-13
Power supply part number        : 341-0266-03
Motherboard serial number       : FDO16190JKL
Power supply serial number      : DCA1610HMNO
Model revision number           : Q0
Motherboard revision number     : A0
Model number                    : WS-C3750V2-24PS-S
System serial number            : FDO1619YGHI
Top assembly part number        : 800-31035-05
Top assembly revision number    : B0
Version ID                      : V07
CLEI Code Number                : COMP400ARC

Switch 03
---------
Switch Uptime                   : 10 minutes
Base ethernet MAC Address       : A4:18:75:54:16:78
Motherboard assembly number     : 73-11704-13
Power supply part number        : 341-0266-03
Motherboard serial number       : FDO16150QRS
Power supply serial number      : DCA1606HTUV
Model revision number           : Q0
Motherboard revision number     : A0
Model number                    : WS-C3750V2-24PS-S
System serial number            : FDO1615X1J0
Top assembly part number        : 800-31035-05
Top assembly revision number    : B0
Version ID                      : V07
CLEI Code Number                : COMP400ARC

Configuration register is 0xF