Cisco Switching/Routing :: Catalyst 2960 - Can SFP+ Cable Be Used To Connect As Stack?

Apr 25, 2013

I have two Cisco 48 port Catalyst 2960-S series SI. Instead of buying the pricy stack modules can I only use the SFP+cable to connect them as stack? which type of SFP+cable should I buy? do I need any license to use those SFP ports?

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Cisco Switching/Routing :: How To Stack Catalyst 2960

Dec 1, 2012

How would I go about stacking 4 Cisco Catalyst 2960-48PST-L switches? The one switch needs to accept a fiber connection from a distribution switch.  Do I have to buy flexstack module and cables? If so where does the module go on the switch? If this switch cannot do this set up, any other switch I should look at. 

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Cisco Switching/Routing :: Maximum Switches Per Stack For Catalyst 2960

Apr 23, 2007

Any one who knows where I can find a documentation where it says the maximum switches per stack for the Catalyst 2960 family?

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Cisco Switching/Routing :: Catalyst 2960 / Add New Stack To Existing Two Stacks

Mar 7, 2013

On first floor, I have two stack switches and each stack has got 4 switches. they all are working fine.Now the client would like to add one more stack on the 2nd floor. But the second floor switches are different when compared to the 1st floor switches.
 
can you have differnt IOS among different stacks. I knew in a stack we need all the switches should have same IOS version. But in between two stacks to communicate do we need same IOS or they can be on differnet IOS?
 
1st floor switches have 15.0 version and 2nd floor new switches has 12.2.58. Is this ok ?
 
1st floor switches are 3500 series ( Note: only one one Vlan 20 we are using on the both stack switches and we would like add same Vlan 20 on to the new stack)
 
2nd floor switches aew 2 catalyst 2960 switches.
 
Note: on the second floor switches one is 24 port switch and the other one is 48 port switch. so can i make them  as a stack?
 
We have already done cabling from 1st floor to second floor. So no problem with that at all.

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Cisco Switching/Routing :: Cannot Administer New Catalyst 2960 Switch Via Console Cable

Dec 12, 2012

I planed to configure a new catalyst 2960 switch with console cable.
 
During the boot, all seems ok. but from my terminal client, I can't have access to configuration mode.Keyboard or Terminal client is not sending commands to the switch.
 
The terminal is blocked on this line Compiled Tue 28-Sep-10 13:44 by prod_rel_team.what can I do to get access to the switch? [code]

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Cisco Switching/Routing :: Add 2960 To Stack Of 4 X 2960 Switches

Feb 7, 2012

I have an existing stack of 4 x 2960-S switches connected by stack cables.I would like to add another 2960-S switch to the stack but am unable to as the 2960-S will only allow 4 x 2960-S switches per stack.how I would add the 5th 2960-S switch to the existing stack of 4 x 2960-S switches.

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Cisco Switching/Routing :: CAB-STACK-50CM Bent Stack Cable

Feb 27, 2013

Is there a stacking cable that is "bent"?Im using this cable:"CAB-STACK-50CM", "Cisco StackWise 50CM Stacking Cable".But it takes up to much room in the back of the switch, is there such a thing as "bent" stacking cable.

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Cisco Switching/Routing :: 3750 Stack-wise Cable Long Enough To Connect Two Racks

May 8, 2012

We have two dedicated racks for our DMZ. We need to connect them to a firewall. We do all the cabling inside the rack, so each of them must have a top of rack.Problem is, switch in rack 2 will be connected to rack 1 and then to firewall, so if switch 1 fail, we lose both of them.
 
I would love to stack them like 3750 but I don't think there is stack-wise cable long enough to connect two racks (and I suppose this length isn't supported by technology).We have only one port left in the FW.

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Cisco Switching/Routing :: Configure 2960 Stack IP Address?

May 20, 2013

This is probably a dumb question, but I have read the 2960 stack administration guide and it does not explain how to configure the stack IP address. It says several times that the stack can be managed from the stack IP address, and that the stack IP address is a system-level configuration item. But it never explains how to configure the stack IP address.

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Cisco Switching/Routing :: 2960 Stack Of Four Ws C2960S Crashes

May 29, 2011

We have a 2960 stack of 4 WS-C2960S-24PS-L switches.Sometimes, at random, the stack crashes and reboots. I have downloaded the crashinfo file and can see the following error.

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Cisco Switching/Routing :: Catalyst 3750 And 3750X Together In One Stack?

Nov 20, 2011

if I read the Datasheet of Catalyst 3750X-Series-Switches it is possible to connect a new X-Switch to an existing and old Catalyst 3750-Series Stack.What kind of requirements are needed? Only same IOS-Version in the hole Stack and if possible same Feature-Set? .... like in a normal NOT mixed Stack?

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Cisco Switching/Routing :: Catalyst 2960S Stack Required

Dec 1, 2010

I have a new problem with Catalyst 2960S. We have four switch in a stack and now I get the message:
 
“%PLATFORM_RPC-3-MSG_THROTTLED: RPC Msg Dropped by throttle mechanism: type 37, class 14, max_msg 32, total throttled 73968 (hostname1-2)”
 
Traceback= 13A686C 160862C 160E0B4 15E2088 184FD48 18467B8
 
sh switch de
Switch/Stack Mac Address : 68bd.abc9.0000
H/W   Current
[Code]....

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Cisco Switching/Routing :: 2960 S - Stack Of 4 Unable To Console From Members?

Sep 10, 2012

I have stack of 2960 S  switches.I can console only from Master not from memember switches is this default behaviour?

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Cisco Switching/Routing :: Cross Stack EtherChannel From 3750 To 2960

Mar 25, 2013

We have a pair of WS-C3750X-24T-S in a stack and four WS-C2960S-48TS-L in a stack of their own. There is not really anything too fancy configured (no special VLAN configuration/trunks or etc.) but the 3750 do have two ports configured as L3 for routing. We are not trying to use those ports for EtherChannel. These devices are running IOS 12.2(55)SE3 Essentially we are attempting to make an EtherChannel group using port 48 on all four of the 2960's in their stack (four ports). On the 3750 we will configure an EtherChannel group using port 23 and 24 on both switches (four ports). We then connect them up to form a four member EtherChannel.The ports on both ends are configured as mode ON and they are all 1Gb ports. I elected mode on because I understand at least one of the EtherChannel protocols will not work cross stack. What I would like to ask is whether the above configuration is possible or are we hitting some sort of limitation of EtherChannel cross stack, etc..? I cannot find anything to suggest this configration is invalid, but thought I would ask to see if I missed something in the EtherChannel articles.

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Cisco Switching/Routing :: Catalyst 3750 Series Stack IOS Upgrade?

Oct 8, 2012

I have Cisco Catalyst Stack structure that  consist of;
 
3750E-48TD-S (MASTER) (UNIVERSAL Image)
3750G-48TS-S (IPBASE Image)
3750G-48TS-S (IPBASE Image)
3750G-48TS-S (IPBASE Image)
             
I want to upgrade their IOSs to k9 images.
 
I can not dowload Universal Image file from Cisco website because of the expired service contract.  I have IPBASE IOS files for all switches,
 
Can it be a problem to upgrade master switch IOS from Universal to IPBASE image?

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Cisco Switching/Routing :: Rolling Stack Upgrade Of Catalyst 3750

Apr 1, 2013

I want to run rolling-stack upgrades on several stacks containing Catalyst 3750X-switches. I have done as follows: Configured the redundant uplinks as active and stand-by.Started to upgrade by using archive download-sw /rolling-stack-upgrade /overwrite /reload The upgrade starts as expected BUT switch number 2 in the stack is reloaded BEFORE switch 1 is finnished, the result is of course downtime for the stack. The documentation says something about the command "boot time", but what is this command doing? The default seems to be 7 minutes, it this parameter the time the upgrade-process waits before booting the next switch in the stack? I would expect that switch number 2 is reloaded when switch 1 is up again after reload, and not after an absolute number of minutes, is the rolling-stack-upgrade not working this way ?

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Cisco Switching/Routing :: Catalyst WS-C3750-48P And WS-C3750G-16TD Stack?

Jan 1, 2012

I have 8 switch stack consisting of six WS-C3550-48P and two WS-C3750G-16TD running software vesrion 12.2(25) SEB1. When I added new C3750v2-24PS (running image 12.2(50) SE5) in stack so I up-graded the image of existing 8 switches with latest veriosn 12.2(50) SE5. Once I have done with the upgrade then all ports of my stack switches went down after around five minuts. Is it image compatibility issue with existing switches or something else?

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Cisco Switching/Routing :: Stack Trace Errors / Catalyst 3030

Nov 21, 2012

I know the Catalyst 3030 is EOL/EOS and I am probably SOL. 
 
Cisco IOS Software, CBS30X0 Software (CBS30X0-LANBASE-M), Version 12.2(25)SEE2, RELEASE SOFTWARE (fc1)
Copyright (c) 1986-2006 by Cisco Systems, Inc.
Compiled Fri 28-Jul-06 11:05 by yenanh
Image text-base: 0x00003000, data-base: 0x00AB4EB8

 [code]....
 
I would like to put the below into the "stack trace" tool, but all links appear to be dead.  
 
%PLATFORM-1-CRASHED: Program Exception (0x0700)!
%PLATFORM-1-CRASHED: SRR0 = 0xFEA10EC0 SRR1 = 0x00029210 SRR2 = 0x0043CD70 SRR3 = 0x00021200
%PLATFORM-1-CRASHED: ESR = 0x08000000 DEAR = 0x00000000 TSR = 0x8C000000 DBSR = 0x00000000
%PLATFORM-1-CRASHED:

[code]....

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Cisco Switching/Routing :: Add Another Fiber Redundant Link Between 6509 And 2960 Stack?

Jan 6, 2012

below is the current config of link that is already up. I need to add another fiber redundant link between 6509 and 2960 stack. How to work on config Spanning side by not taking 6509 down after the change. 6509 is in distribution.
 
---------------X-ALPHA-IDF-1FORMS-2960S-0# (SIDE)
!interface GigabitEthernet1/0/52description X-ALPHA-F-6509-0 uplinkswitchport trunk native vlan 18switchport mode trunksrr-queue bandwidth share 1 50 30 19priority-queue out mls qos trust dscpmacro description cisco-routerauto qos trust spanning-tree portfast disablespanning-tree guard loopip dhcp snooping trust!
 
-----------------X-ALPHA-F-6509-0# (SIDE)
!interface GigabitEthernet3/10description 1st floor POC2 Forms IDFswitchportswitchport trunk encapsulation dot1qswitchport trunk native vlan 18switchport mode trunkno ip addressmls qos trust dscpspanning-tree guard loop!

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Cisco Switching/Routing :: Catalyst 3750 Switch Reboots Because Of Stack Failure

May 14, 2008

The Catalyst 3750 switch reboots, and the " Reloading because of stack merge or communication failure" error message appears.

I saw this issue at "Cisco wiki" but the resolution in that page is just "Open a case with TAC". Because of  the reasion is H/W Problem.

Is The resolution only one ? anything else? The 3750 does not use Stack.It is just stand alone. So i think it has other resolution as "disabling Stack" or another one. How about my opinion ? Is the Resolution only "Open a Case with TAC"

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Cisco Switching/Routing :: Can't SSH Into New Catalyst 2960 Switch

Jun 13, 2012

I'm having trouble setting up SSH on my new Switch.
 
no aaa new-model
aaa authentication login default local
ip domain-name king.local

[Code].....
 
I would like to be able to use Vlan 10 192.168.155.1 for SSH remote management.

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Cisco Switching/Routing :: SFP Port On Catalyst 2960 S?

Mar 18, 2013

I have Catalyst 2960 S (WS-C2960S-48FPS-L) Switch. I have plugged in SFP module but still interface is down and line protocol down. Is there any configuration to enable SFP module and make the interface up?
 
This port is connected to nexus 5 k.

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Cisco Switching/Routing :: Catalyst 2960 Switch Qos

Aug 20, 2012

i try to implement layer 2 qos in 2960. when i complete to configure the switch, i want to test the qos.PC1 conect to switch port 1,PC2 conect to switch port 2 . PC1 is source teminal. i use skydata.exe and FTP for the test.

when use the skydata ,the PC2 speed can reach 10mbps.when use the FTP , the PC2 only can reach 1.2mbps. why?

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Cisco Switching/Routing :: Can't SSH Into New Catalyst 2960-S Switch

Apr 29, 2012

I can use Putty to SSH into my new switch (Directly connected to my laptop  with ethernet cable), but I cant log into my switch.
 
Sent username "admin"
admin@192.168.251.1's password:
Access denied
  
It doesnt like my password, but I have only set 1 password (king) on this switch. I've configured 3 other switches with SSH and had no problem. Been trouble shooting for awhile and It'd be great if I could have a 2nd set of eyes take a peek, Also, my running config is attached.

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Cisco Switching/Routing :: Catalyst 2960 - How To Configure With CLI

Sep 20, 2012

Will catalyst2960 supports SSH, and how to configures with CLI.

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Cisco Switching/Routing :: Catalyst 2960 IOS Upgrade

Apr 9, 2012

I need to upgrade a Catalyst IOS, but I got a bit confused. The catalyst is currently running "c2960-lanbase-mz.122-35.SE5.bin", but I want to upgrade to "c2960-lanbasek9-mz.122-35.SE5.bin", in order to enable ssh. [code] What are the appropriate steps in order to upgrade to "c2960-lanbasek9-mz. 122- 35. SE5.bin". I have downloaded the tar file (c2960-lanbasek9-tar.122-35.SE5.tar)
 
1) Do I have to delete the old directory  (drwx 192   Mar 1 1993 02:07:21 +02:00  c2960-lanbase-mz.122-35.SE5)?
2) Are these the correct steps to download and extract the IOS?
3) Where will the tar files be extracted? Will an new directory be made or do I have to make one manually?

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Cisco Switching/Routing :: Connecting Qos On 2960 Catalyst?

Dec 15, 2012

I have packet loss with QoS configured and I was wondering is it somehow connected with the QoS configured on the switch.The traffic is passing through fa0/19 and gi0/1 interfaces.
 
mls qos map cos-dscp 0 8 16 24 32 46 48 56
mls qos srr-queue input bandwidth 90 10
mls qos srr-queue input threshold 1 8 16
mls qos srr-queue input threshold 2 34 66

[code]...

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Cisco Switching/Routing :: Catalyst 2960 Acts Like A Hub

Feb 17, 2013

I have 4 Catalyst 2960 connected via Etherchannel to each other. If I plug in my notebook in one port, I see the traffic from the neighbor port. So my switch acts like a hub.. I had a look at my MAC table and saw it isn't full.

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Cisco Switching/Routing :: 2960 Switch Stack Spanning Tree Recalculate From Port One

Feb 23, 2012

2960 switch stack (flex) Spanning tree re-calculate from stack port one?I need to identify with port in the stack is causing the re-calc  I have four 48 port switches and show spanning detail only indicates stack port 1.

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Cisco Switching/Routing :: Bandwidth Limit On Catalyst 2960?

Feb 9, 2012

I have ciscl catlyst 2960 8port switch, (flash:c2960-lanbasek9-mz.122-50.SE4/c2960-lanbasek9-mz.122-50.SE4.bin).
 
and in need to configure bandwidth limit for one of the port as a 1Mbps.

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Cisco Switching/Routing :: Recover IOS In Catalyst 2960 Series

Jan 8, 2013

In an attempt to restore a Cisco IOS I deleted the file C2960-lanbasek9-mz.122-53.SE2.bin my swich
 
Before deleting the same was as follows:Directory of flash :/
 
3-rwx 12824 Mar 28 1993 21:00:37 -03:00 vlan.dat4-rwx 3096 Mar 7 2012 08:43:37 -02:00 multiple-fs5-rwx 2289 Mar 7 2012 08:43:37 -02:00 private-config.text6-rwx 7482 Mar 7 2012 08:43:37 -02:00 config.text9 drwx 192 Mar 23 2012 16:18:54 -03:00 C2960-lanbasek9-mz.122-53.SE2
 
32514048 bytes total (20204544 bytes free)Switch-01 #
 
Right now this switch as follows:
 
switch: dir flash:Directory of flash:/
2  drwx  64        <date>               crashinfo_ext    3  -rwx  4120      <date>               multiple-fs    5  -rwx  12824     <date>               vlan.dat    6  -rwx  4018      <date>     

[Code].....

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Cisco Switching/Routing :: Does Catalyst 2960 Support Netflow

Dec 25, 2011

I need to know if Cisco Switch 2960 support Netflow. If it doesn't, how do I configure the switch to enable Netflow?

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Cisco Switching/Routing :: Catalyst 2960 POE With Pre Standard IP Phones

Mar 21, 2013

I have a Catalyst 2960-S switch and a pre-standard IP Phone (Cisco 7960). When I connect the phone to the switch the switch recognizes the phone and supplies power. I would like to prevent this behaviour. ie. I would like to disable detection of pre-standard equipment. Is there a command I can issue on the 2960-S to do this? For example, on a switch from a different vendor I can issue the command: no power pre-std-detect to prevent it from detecting the 7960 phone, is there an equivalent command on the Catalyst 2960-S ?

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