Can you stack 2960 Switch?

My question is can I stack two or more 2960 switches, master/slave design and be able to manage them both using the CMS technology or not. I don't quite understand the SFP, Small Form-Factor Pluggable, and the 2960 uplink ports. It appears as though one uplink will be in standby mode, therefore both ports can't be active at the same time. If that is the case it looks as though you can't stack becasue of only one uplink port being active.

Hi Washro,
You cannot stack 2960 switch like you can do 3750 switches but you can still achieve clustering on this switch.
http://www.cisco.com/univercd/cc/td/doc/product/lan/cat2960/12240se/scg/swclus.htm
Also both uplink ports can be active at a time if they get connected to some other switches but if 2 get uplink to same switch then STP will block one port.
HTH
Ankur
*Pls rate all helpfull post

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Hi Friends,
I have attached a pics which DC design of one of our customer , as network engineer i have design this , so i am responsible for implementing it, now request you all to kindly guide me what would be technical problem i have to face in achieving this and how can i over come .Please be in detail. Waiting for your response .
Regards
Amit Kulshrestha

I have attached modified diagram , please suggest.
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==> You are right , surely 2960 Switch need to be in stack form.
Personally I would look at more powerful switches than the 2960's, something along the lines of the 3750x range or probably now the 3850's.
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Can not administer Catalyst 2960 switch via console

Hello,
I want to configure my switch via console cable, the switch boots up normally, and there are no configurations present on the switch. However, anything I type does not appear on the terminal client. I used several terminal clients (TeraTerm, PuTTY, HyperTerminal), all latest versions as well as different PCs. I even forced the switch to rommon mode, still, anything I type does not appear on the terminal client.
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Boot Sector Filesystem (bs) installed, fsid: 2
Base ethernet MAC Address: e8:40:40:06:f0:80
Xmodem file system is available.
The password-recovery mechanism is enabled.
Initializing Flash...
flashfs[0]: 542 files, 19 directories
flashfs[0]: 0 orphaned files, 0 orphaned directories
flashfs[0]: Total bytes: 32514048
flashfs[0]: Bytes used: 11565056
flashfs[0]: Bytes available: 20948992
flashfs[0]: flashfs fsck took 11 seconds.
...done Initializing Flash.
done.
Loading "flash:/c2960-lanbasek9-mz.122-50.SE5/c2960-lanbasek9-mz.122-50.SE5.bin"...@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
File "flash:/c2960-lanbasek9-mz.122-50.SE5/c2960-lanbasek9-mz.122-50.SE5.bin" uncompressed and installed, entry point: 0x3000
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, C2960 Software (C2960-LANBASEK9-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 13:44 by prod_rel_team
Image text-base: 0x00003000, data-base: 0x01400000
Initializing flashfs...
fsck: Disable shadow buffering due to heap fragmentation.
flashfs[1]: 542 files, 19 directories
flashfs[1]: 0 orphaned files, 0 orphaned directories
flashfs[1]: Total bytes: 32514048
flashfs[1]: Bytes used: 11565056
flashfs[1]: Bytes available: 20948992
flashfs[1]: flashfs fsck took 2 seconds.
flashfs[1]: 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
POST: PortASIC CAM Subsystem Tests : Begin
POST: PortASIC CAM Subsystem Tests : End, Status Passed
POST: PortASIC Port Loopback Tests : Begin
POST: PortASIC Port Loopback Tests : End, Status Passed
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
[email protected].
cisco WS-C2960-24TT-L (PowerPC405) processor (revision J0) with 65536K bytes of memory.
Processor board ID FOC1510X4ZQ
Last reset from power-on
1 Virtual Ethernet interface
24 FastEthernet interfaces
2 Gigabit Ethernet interfaces
The password-recovery mechanism is enabled.
64K bytes of flash-simulated non-volatile configuration memory.
Base ethernet MAC Address       : E8:40:40:06:F0:80
Motherboard assembly number     : 73-12600-05
Power supply part number        : 341-0097-03
Motherboard serial number       : FOC15094MZG
Power supply serial number      : DCA150583WQ
Model revision number           : J0
Motherboard revision number     : A0
Model number                    : WS-C2960-24TT-L
System serial number            : FOC1510X4ZQ
Top Assembly Part Number        : 800-32797-01
Top Assembly Revision Number    : F0
Version ID                      : V09
CLEI Code Number                : COM3L00BRE
Hardware Board Revision Number : 0x0A
Switch Ports Model              SW Version            SW Image
*    1 26    WS-C2960-24TT-L    12.2(50)SE5           C2960-LANBASEK9-M
Press RETURN to get started!
*Mar 1 00:00:31.381: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to down
*Mar 1 00:00:32.556: %SPANTREE-5-EXTENDED_SYSID: Extended SysId enabled for type vlan
*Mar 1 00:00:35.802: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan99, changed state to down
*Mar 1 00:00:35.861: %SYS-5-CONFIG_I: Configured from memory by console
*Mar 1 00:00:36.012: %SYS-5-RESTART: System restarted --
Cisco IOS Software, C2960 Software (C2960-LANBASEK9-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 13:44 by prod_rel_team
*Mar 1 00:00:36.037: %SSH-5-ENABLED: SSH 1.99 has been enabled
*Mar 1 00:00:37.060: %LINK-5-CHANGED: Interface FastEthernet0/6, changed state to administratively down
*Mar 1 00:00:37.094: %LINK-5-CHANGED: Interface FastEthernet0/7, changed state to administratively down
*Mar 1 00:00:37.127: %LINK-5-CHANGED: Interface FastEthernet0/8, changed state to administratively down
*Mar 1 00:00:37.161: %LINK-5-CHANGED: Interface FastEthernet0/9, changed state to administratively down
*Mar 1 00:00:37.195: %LINK-5-CHANGED: Interface FastEthernet0/10, changed state to administratively down
*Mar 1 00:00:37.228: %LINK-5-CHANGED: Interface FastEthernet0/11, changed state to administratively down
*Mar 1 00:00:37.262: %LINK-5-CHANGED: Interface FastEthernet0/12, changed state to administratively down
*Mar 1 00:00:37.362: %LINK-5-CHANGED: Interface FastEthernet0/13, changed state to administratively down
*Mar 1 00:00:37.362: %LINK-5-CHANGED: Interface FastEthernet0/14, changed state to administratively down
*Mar 1 00:00:37.362: %LINK-5-CHANGED: Interface FastEthernet0/15, changed state to administratively down
*Mar 1 00:00:37.404: %LINK-5-CHANGED: Interface FastEthernet0/16, changed state to administratively down
*Mar 1 00:00:37.446: %LINK-5-CHANGED: Interface FastEthernet0/17, changed state to administratively down
*Mar 1 00:00:37.488: %LINK-5-CHANGED: Interface FastEthernet0/18, changed state to administratively down
*Mar 1 00:00:37.497: %LINK-5-CHANGED: Interface FastEthernet0/19, changed state to administratively down
*Mar 1 00:00:37.539: %LINK-5-CHANGED: Interface FastEthernet0/20, changed state to administratively down
*Mar 1 00:00:37.572: %LINK-5-CHANGED: Interface FastEthernet0/21, changed state to administratively down
*Mar 1 00:00:37.606: %LINK-5-CHANGED: Interface FastEthernet0/22, changed state to administratively down
*Mar 1 00:00:37.639: %LINK-5-CHANGED: Interface FastEthernet0/23, changed state to administratively down
*Mar 1 00:00:37.673: %LINK-5-CHANGED: Interface FastEthernet0/24, changed state to administratively down
*Mar 1 00:00:37.690: %LINK-5-CHANGED: Interface GigabitEthernet0/1, changed state to administratively down
*Mar 1 00:00:37.715: %LINK-5-CHANGED: Interface GigabitEthernet0/2, changed state to administratively down
After the last line, I can not type any command at all. I encountered this on three 2960 switches that we have here in our laboratory. Can anybody help me on how I can get access to the switch via console?
Thanks in advance.

Have You Check your console Cable.
also
If u are using USB to Serial check driver are properly installed.
else
See Helpful Cisco Documentation
http://www.cisco.com/en/US/products/hw/switches/ps700/products_tech_note09186a008010ff7a.shtml
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How i can calculate the backplane speed & throughput of cisco 48 1G 2960S switch?

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