Cisco Switching/Routing :: Catalyst 3750X-48P Switch Ports Dead

Jan 31, 2012

I work at a hospital and we have 3750X-48P switches in stacks in various locations throughout the hospital.  We have noticed that when an EKG machine is plugged into one of the ports on some of these switches and the EKG machines are set manually to 100/Full, the ports are no longer usable until the switch is restarted.  The switch is configured for auto.  If the EKG machine is set to auto, it will work and not cause problems.  The link on the interface will show up/up and there will be output packets increasing.  However, there will be no inputs on the link and the port is unusable.  Unfortunately, even when the device is removed, the port becomes unusable for any device.  Is there any way to fix this problem without rebooting the switch?

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Cisco Switching/Routing :: Catalyst 2948G Switch Got Dead

Feb 15, 2012

I had an old Cisco Catalyst 2948G switch that I have not used in about 7 years down in my basement.  I powered it on and went through the process of clearing out the configurations, and I got to a point where one of the commands to clear out the config asked me to install jumpers for "ROM" and "ERASE".  There is a third jumper labeled "NO BOOT". They are numbered J6, J7, & J8 respectivelyI found the jumpers inside and put the jumpers on them and ran the command expecting it to remove any old configurations I had on the switch and bring it back to factory state, but I was wrong.

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Cisco Switching/Routing :: Catalyst 2948G Switch Is Dead

Dec 10, 2012

I had an old Cisco Catalyst 2948G switch that I have not used in about 7 years down in my basement.  I powered it on and went through the process of clearing out the configurations, and I got to a point where one of the commands to clear out the config asked me to install jumpers for "ROM" and "ERASE".  There is a third jumper labeled "NO BOOT". They are numbered J6, J7, & J8 respectivelyI found the jumpers inside and put the jumpers on them and ran the command expecting it to remove any old configurations I had on the switch and bring it back to factory state, but I was wrong. This switch runs CatOS, not IOS.When power is applied to the switch, the fans turn on as normal, but no LEDs are lit on the front.  There are green LEDs lit next to the jumpers inside, but that is all.  I am not able to get any response from it on the console at all anymore.The LEDs that are lit green inside are labeled "CR5" and CR6".

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Cisco Switching/Routing :: 4500 Switch Dead Ports / No Poe

Feb 24, 2013

I have a Cisco 4500. Recently some of the ports seem to have "died"/ will not supply Poe to phones. Some work for data only. Other do not work at all. The switch has been restarted, this made no difference.

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Cisco Switching/Routing :: 3750x - MAC Address Not Captured On Switch Ports

Feb 29, 2012

In my environment we have 3750x switches running ios 15.0 (1) SE2.  We have port security mac address sticky configured on all our switch ports.  I noticed that we have several interfaces (on different switches) that are up but have not captured the MAC address from the workstation.  Here is one example:
 
interface GigabitEthernet2/0/11
switchport mode access
switchport port-security

[Code].....

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Cisco Switching/Routing :: 3750x Switch That Handle Its 24 / 48 Ports At 10 Gbps With Copper

Dec 19, 2011

Is there a switch that handle its 24/48 ports at 10 Gbps with copper?. I have checked  3750 X but just handle 2 SFP with 10 Gbps.The requirement is to use this switch as CORE and connect 12 switches (access) using  its uplinks at 10 Gbps  with copper ( in this case 3750 X can be used).using copper at 10 Gbps the distance is still 100 m?

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Cisco Switching/Routing :: 2960 No Post / Solid Green Syst / Dead Switch?

Feb 16, 2013

I have 2 - WS-C2960-24TT-L switches. Both are experiencing the same issue. Upon booting them up, all lights flash on the mode indicator panel, then it goes directly to a solid green "SYST" light. Nothing registers across the console cable. I have tried different baud rates, cables and computers. None of the ports come up regardless of how long either switch is powered on. Holding the Mode button during boot up produces the same result, nothing. Sounds like they are dead, however, I thought this would be the place to go for ideas. Can I revive these switches?

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Cisco Switching/Routing :: Catalyst 3750X Upgrade Failed?

Jan 27, 2013

I try to updgrade a stack of two 3750X-48PS to the IOS 15.0-2
 
Same commande has the twelves others stack I have upgrade lately
 
archive download-sw /overwrite tftp://x.x.x.x/c3750e-universalk9-tar.150-2.SE.tar
 
or
 
archive download-sw /overwrite usbflash0:/3750/c3750e-universalk9-tar.150-2.SE.tar (much faster!)
  
At the end I have this message :
 
extracting c3750e-universalk9-mz.150-2.SE/info (511 bytes)
extracting c3750e-universalk9-mz.150-2.SE/c3750e-universalk9-mz.150-2.SE.bin (19842267 bytes)

[Code].....

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Cisco Switching/Routing :: Cannot Upgrade Servicemodule In Catalyst 3750X

Mar 25, 2013

I have upgraded my Catalyst 3750X-switches to software-version 15.0(2)SE2, but I cannot upgrade the 10G servicemodule to the same version. I use the archive download-sw command to load the c3kx-sm10g-tar.150-2.SE2.tar. The file is loaded to the switch, but when the process starts to transfer the file to the module it fails with the following messages:
 
Error 2: Unable to transfer image to FRU Modul on switch 1Error: Failed to update FRU Module image 
 
The modules is now running with in-compatible versions as shown below:
 
Switch# H/W Status (CPU/FPGA) CPU Link Version
-----------------------------------------------------------------
1 OK 77C/71C ver-mismatch 03.00.41
2 OK 73C/73C ver-mismatch 03.00.41

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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 3750X - Network Module 1/10G

Apr 9, 2013

Is it possible to mix 1 and 10 Gigabit links on a 1/10Giga Network Module of the Cat3750X? I mean porte GE1/1/1 and GE1/1/2 used with SFP and port TE1/1/2 used with SFP+; that makes TE1/1/1 not available as GE1/1/3 and 1/1/4

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Cisco Switching/Routing :: 3750X 1GB Ports Not Coming Up

Jan 22, 2013

I have hardcoded 1GB ports on 3750X to 1000 and full duplex for all servers connected. THe ports are not coming up with this speed and duplex settings. If I configure them to 100, I am able to see the port is up. Whereas if i connect the same servers to 2950 switches, i can see the ports working fine with 1000 speed ..we have tried with the latest universal IOS as well

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Cisco Switching/Routing :: 3750x Ports Become Unusable

Jul 15, 2012

We are having an odd occurance happening to our 3750x stacks. For no apperent reason ports will become unusable. Doing a shut/no shut on the ports has no effect. The weird thing is that the indicator lights will stay solid green even if there is nothing plugged into them. We had this happen a couple months ago and a reboot fixed the issue. But as it has happened again makes me think that is was not a fluke. As of right now it only effects a few ports.
 
current code we are running is Version 12.2(53r)SE2

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Cisco Switching/Routing :: Port Numbering On A Catalyst 3560 / 3750X

Apr 10, 2012

Assume I had Catalyst 3560X/3750X with 24 ports. The partnumber is WS-C3560X-24P-LI would like to how is the numbering defined if the switches have a C3KX-NM-10G installed with 4 SFP-GE-L.

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Cisco Switching/Routing :: Catalyst 3750X Is Caching Tacacs Password?

May 17, 2012

the following information before:
 
Switch:  WS-C3750X-48P   (Stack with 2 Members)
IOS:      12.2(58)SE2
Lic:       IPBASEK9
uptime:  rebooted this night
 
[code]....
 
Since i added another Member to the Stack, i'm facing the following problem:When i login with my tacacs user account, i will not be asked for the password.The same thing is for the tacacs account of my colleague, after entering the username he is logged in.It seems for me, that the passwords are cached only for this Switch.

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Cisco Switching/Routing :: Catalyst 3750x 24 PS POE With C3KX-NM-10G Uplink Modules?

Sep 5, 2012

our network is spread over  15 floors and each floor we have 5-6 switches. we are planning to purchase cat3750-x 24 ps poe with C3KX-NM-10G  network modules. Each floor has two up links  to the core  switch  with  single mode fiber and other being the multimode.Suppose if we are purchasing 75 switches  do we have to  purchase 75 C3KX-NM-10 G  modules.? or  can we limit our purchase with 15 C3KX-NM-10G   sothat two uplinks from each floor can be made?  since network modules are optional cost factor is invovled. Or any issue with stacking ? the SFPs will be LR  and LRM MODULES.looking for an answer ? whether the new usb type console cable comes bundled with  cat350x or shall we have to order separately?

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Cisco Switching/Routing :: Catalyst 3750X Stacking Convergence Time?

Nov 14, 2011

convergence time in case of stack master will be switched over to other switch.In my understating, when the stack master will be switched over to other switch based on election algorithm, convergence time will be less than 10 second.
 
I tried to calculate concersion time during fail over testing but convergence time was 21 second. I think it is too long...

Expected reasons

・I configured Rapid Spanning tree protocol between L3 and L3. (But RSTP's convergence time is 2~3 second..)

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Cisco Switching/Routing :: Catalyst 3750X With PoE Secondary Power Supply Options?

Jul 21, 2012

When quoting a Catalyst 3750X with PoE (WS-C3750X-48P-E) the Dynamic Configurator Tool allows to include as the secondary power supply option the Catalyst 3K-X 350W AC Secondary Power Supply (C3KX-PWR-350WAC/2), but the default included primary power supply is the Catalyst 3K-X 715W AC Power Supply (C3KX-PWR-715WAC). My questions are the following:
 
1. Will this combination of power supply work?

2. Will the C3KX-PWR-350WAC/2 be able to power up the switch if the primary power supply of 715W fails?

3. Will the PoE will be lost if the primary power supply fails and only the secondary power supply of 350W keeps working?

4. If this secondary power supply of 350W is not suitable for PoE, why it is available as a secondary power supply option in the Dynamic Configurator Tool for a PoE switch?

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Cisco Switching/Routing :: WCCP Settings In Catalyst 3750X And Barracuda Web Filter

May 12, 2013

configuration of a Catalyst 3750X and Barracuda Web Filter using WCCP protocol.
 
We used various WCCP protocol settings, unable set to redirect traffic to the Web Filter.
 
This is the current configuration of 3750X:
 
ip routing
ip wccp 94 redirect-list 194 group-list 50
ip wccp 95 redirect-list 195 group-list 50

[Code]......

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Cisco Switching/Routing :: Catalyst 3750X OSPF Support In IP Base Image?

Apr 3, 2011

I'm trying to work out if I need to order the "IP services" image for a couple of C3750-X.  I need to run OSPF on these switches, but find the IOS image requirements on Cisco contradict.
 
At the top of the data sheet it says: • Open Shortest Path First (OSPF) in IP Base image

On the product info page it says: IP Base: Enterprise Access Layer 3 Switching, including OSPF (Open Shortest Path First) for routed access 
 
But in lots of other places it says you need 'IP services' for OSPF.
  
As the IP services IOS is quite a bit more expensive I would like to avoid buying it. What image do I need to run OSPF?

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Cisco Switching/Routing :: IP SLA ICMP Echo Support Catalyst 3560X / 3750X?

Feb 13, 2012

Need to clarify if ip sla icmp echo operation is supported in catalyst 3kx switches (ip services)? on the configuration guide, commands are available, but on the feature navigator, i can't find the feature, only ip sla video operation. i don't have a device to test on here.

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Cisco Switching/Routing :: Outbound Versus Inbound Access Lists On Catalyst 3750X?

Mar 17, 2013

I want to configure accesslists on my Catalyst 3750X-switches to protect different VLANs/networks. Any best-practices about inbound versus outbound accesslists? In my head it is more readable and easier to understand the config when accesslists are assigned outbound on the VLAN to protect instead of assigning them inbound on all possible source-VLANs. But of course, from a performance point-of-view it is better to use inbound access-lists to avoid un-necessary routing etc.

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Cisco Switching/Routing :: 3750x 12.2(58)SE2 IPBASE 10gb Uplink Ports Not Being Displayed

May 28, 2012

we have just purchased a few 3750x's that we intend to add to our 3750g stacks.  We've purchased the 10gb uplink modules, C3kx-nm-10gt, but when they are installed they are not appearing in the switches web gui nor can you configure them correctly.  If we upgrade a 3750x to 15.0.1 they seem to work fine.  All of our current 3750g's are running 12.2(58)SE2 IPBASE so we don't really want to have to upgrade them all to 15.0.1
 
Are we missing something or do the 10gb modules only work properly with ios 15.0.1?

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Cisco Switching/Routing :: 3750X - Adding Ports To Existing Port-channel

Jan 29, 2013

I need to tear down an existing port-channel on a 3750X running c3750e-universalk9-mz.150-1.SE3.bin. This port channel is currently down down. It has three ports in it that will be added one each to three existing port-channels, I am assuming as long as the "channel-group" command is exactly the same as it is on the three existing port-channels I should be ok just adding the new port. One point to note is that the three existing port-channels all have three ports so this will be adding the fourth port to each port-channel. I know after reading that it is a best practice for load balancing to use either 2, 4, or 8 ports for a port-channel. Also what is the command to see all ports that are in a port channel?

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Cisco Switching/Routing :: Catalyst 4500X All Ports Gigabit

Jun 4, 2012

Are all ports on Catalyst 4500X Gigabit/10-Gigabit or just the ports on 8-port module. We are looking at 4500X for campus distribution layer but need Gig ports to access switches for now and may year from now will be using 10G.

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Cisco Switching/Routing :: In Catalyst 3750 Ports Are Getting Shutting Down Automatically

Jun 15, 2012

in my production environment two swtiches with stack and all ports are in the same Vlan 2 192.168.117.254  and the default getway is 192.168.117.1install correctely all were working fine but from yesterday onwards some of the ports are getting down automatically and coming up automatically and all devices are having static IP's no dynamic. [code]

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Cisco Switching/Routing :: Catalyst 4006 / Quickly Copy Configuration From Production Switch To Spare Switch?

Nov 20, 2009

I have a Catalyst 4006 switch in production and a spare switch of same model. I have to quickly copy the configuration from production switch to spare switch (both L2 and L3 configurations) How do I do that?

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Cisco Switching/Routing :: 3750X / Copy IOS From One Switch To Another?

Feb 27, 2013

It seems I have seen this before (and even done it once a few years ago).. but it has been a while. I have a stack with a Cisco 3750 stack that I have to replace a member.The replacement switch is a 3750X.
 
I think I have to upgrade the IOS of the older switch to be the same as the 3750X.
 
Current switch:      WS-C3750G-48TS     12.2(46)SE           
TO BE ADDED      WS-c3570X-48          15.0 (1)SE2
 
It seems to me there was a way to upgrade the older switch IOS from the newer switch or downgrade the newer switch with the older IOS.I dont have the Cisco account to download updated IOSs.

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Cisco Switching/Routing :: Catalyst 4507R+E With WS-X4748 Blade - Ports Not Working

Mar 28, 2011

I have a Cisco Catalyst 4507R+E  (with Sup7-E) and two blades; one WS-X4748-RJ45V+E and one WS-X4648-RJ45-E.
 
When I connect a device to a port on the WS-X4748-RJ45V+E blade the port will not come up, show interface shows the status as "notconnect". When I connect the same device to the WS-X4648-RJ45-E blade the interface comes up.
 
The WS-X4748-RJ45V+E blade seems to have initialised okay, it appears in the output of "show module" as OK.
 
I get exactly the same effect on a second, identically configured Catalyst 4507R+E.
 
The software version is IOS XE 3.1.0SG, which according to the release notes supports the WS-X4748-RJ45V+E blade

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Cisco Switching/Routing :: InterVLAN Routing On Switch 3750X?

May 22, 2013

my company pay a switch 3750 X. WS-C3750X-24T-E. It uses IP services basically but I failed to configure InterVLAN routing. why interVLAN routing doesn't work on my switch?

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Cisco Switching/Routing :: 3750x Switch Reload Automatically

Dec 15, 2012

while i am configuring a port on switch .The switch reloads.After reload the show version says
 
System returned to ROM by bus error at PC 0x458F6C, address 0x0
 
show version from the effected switch is
 
Cisco IOS Software, C3750E Software (C3750E-UNIVERSALK9-M), Version 12.2(58)SE2, RELEASE SOFTWARE (fc1)
Technical Support: [URL]

[cODE].....

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Cisco Switching/Routing :: Stacking Switch 3750E And 3750X?

Oct 3, 2012

can I make the stacking of these two switches WS-C3750E-48PD-SF and WS-C3750X-48PF-L. Both have universal IOS.

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Cisco Switching/Routing :: Stack 3750G-12S-S With 3750X-48T Switch?

Apr 14, 2012

if we can stack the 3750G switch with a 3750X switch ?

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