Cisco Switching/Routing :: How To Increase PoE Power On 2960-s

Oct 16, 2012

I got a Cisco 2960-S LAN (support PoE+) switch installed in one of my customers' office. The customer needs to plug some cameras to the switch and need inline power from the swtich.
 
Two of the cameras requires 24W power in order to work correctly, if just use normal PoE power, can't get all functions working and get an error message on the screen says "not enough power" or something like that. I have configured those two port to static power inline (on a max value which is 30W). Once the configuration applied, shut/ no shut the port, the error message disappeares for a few minutes, and then comes back. Looks like the power level is still on PoE not PoE+.
 
Is there anything I can do on the configuration to increase the inline power and provide a stable power to that kind of devices?
 
SW02#sh power inline            
Module   Available     Used     Remaining          (Watts)     (Watts)    (Watts) ------   ---------   --------   ---------1           370.0      141.7       228.3Interface Admin  Oper       Power  

[Code]....

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Cisco Switching/Routing :: 2960 - Power LED Does Not Come Up

Jul 22, 2012

Have Cisco catalyst 2960 IOS ver12.2(53)se2 when power on the power LED does not come up and on this is what shown on hyper terminal. what need to be done for this switch ? 
 
Boot Sector Filesystem (bs) installed, fsid: 2
Base ethernet MAC Address: b4:d9:8d:27:4c:00
Xmodem file system is available.
[code]......
 
Interrupt within 5 seconds to abort boot process. Boot process failed. The system is unable to boot automatically.  The BOOT environment variable needs to be set to a boot able image.

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Cisco Switching/Routing :: 2960 When Trying To Plug IP Camera Device / It Doesn't Take Any Power

Nov 12, 2011

when am trying to plug a PC into the switch, it takes power as the switch is POE . but when trying to plug IP Camera Device it does not take any power. although i have cisco 2960 - 24 ports both PC and IP Camera getting power. while troublshooting by #show power inline , i get nothing as well.

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Cisco Switching/Routing :: 3750 - Power Stack Has Unbalanced Power Supplies

Jun 9, 2013

I am receiving the following error on 3750 stack switches. have already verified the power status and found ok.
 
IOS used: Cisco IOS Software, C3750E Software (C3750E-UNIVERSALK9-M), Version 12.2(55)SE3, RELEASE SOFTWARE (fc1)

211540: Jun 10 10:45:17.935 UTC: %PLATFORM_STACKPOWER-4-UNBALANCED_PS: Switch 4's power stack has unbalanced power supplies
211541: Jun 10 10:46:18.045 UTC: %PLATFORM_STACKPOWER-4-UNBALANCED_PS:

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Cisco Switching/Routing :: Stack-power 3750x / FRU Power Supply Is Not Responding

Sep 4, 2012

After stacking two 3750X switches, with four equal power-supply's, with StackWise and PowerStack , still got the next message every few hours %PLATFORM_ENV-1-FRU_PS_ACCESS: FRU Power Supply is not responding (gn4m-rt1p08-04-2)( note that the message revers to the second switch in the stack ) although the stackwise and powerstack on the switches is oke and are working correctly. !
 
Config  : Stack-power in power-sharing mode/strict With CLI on the switch : All the power supply's and stack-power details, prio look OK.
 
Only: LMS prime /inventory/cisco-view/configure/power supply status  result :  some power supply's are marked as disabled.with the command  > power supply 2 slot a off/on I manage to get the status back to "normal", but after a few hours some power supply's are again marked as "disabled".
 
Looks like SNMP en IOS difference from opinion.
 
Hardware
WS-C3750X-24S-S
C3KX-PWR-350WAC
 
Software
15.0(2)SE
C3750E-UNIVERSALK9-M

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Cisco Switching/Routing :: WS-C3560-48PS-S Show Power Inline But No Power Available

Apr 14, 2013

We have two switches of the same model (WS-C3560-48PS-S) that are not providing PoE. I'm trying to remotely determine what the cause of the issue is.
 
Here is some output.
 
Hostname#show power inlineAvailable:0.0(w)  Used:0.0(w)  Remaining:0.0(w)
Interface Admin  Oper       Power   Device              Class Max                            (Watts)--------- ------ ---------- ------- ------------------- ----- ----Fa0/1     auto   off        0.0     n/a                 n/a   15.4Fa0/2     auto   off        0.0     n/a                 n/a   15.4Fa0/3     auto   off        0.0     n/a                 n/a   15.4Fa0/4     auto   off        0.0     n/a                 n/a   15.4Fa0/5     auto   off        0.0     n/a                 n/a   15.4Fa0/6     auto   off        0.0     n/a                 n/a   15.4Fa0/7     auto   off        0.0     n/a                 n/a   15.4Fa0/8     auto   off        0.0     n/a                 n/a   15.4Fa0/9     auto   off        0.0     n/a                 n/a   15.4Fa0/10    auto   off        0.0     n/a                 n/a   15.4(code)

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Cisco Switching/Routing :: 6500 - Power-Redundancy Mode Combined And Power Fail

Feb 28, 2011

I have a 6500 chassis with 2 power supplies. At the moment  I am using the default configuration:
 
power-redudancy mode redundant
 
The problem is that an inserted module is in "power deny" state due too insufficient power.
 
I know, that It's not a good idea to change into combined mode (loss of redundancy), but my customers requested this anyway.
 
So I will change to combined mode. So here's the 1 million dollar question: "Which modules will go into power deny, if one of my power supplies fails?"
 
The 6500 config guide states:
 
"Power supply is removed withredundancy disabled
• System log and syslog messages are generated.
• System power is decreased to the power capability of one supply.
• If there is not enough power for all previously powered-up modules, some modulesare powered down and marked as power-deny in the show power oper state field."
 
Well, do you know if there's any way to configure some kind of priority? E.g. I definetly don't want by 10Gig Module or WiSM module to be in power deny. Can i statically make sure, those module will be powered on for sure? Like: "power enable module slot_number" How is this calculated? Or is random?

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Cisco Switching/Routing :: 3750X Stand Alone Secondary Power Supply Act As Pool Of Power

Apr 4, 2012

In a stand alone 3750x switch configuration, can the secondary power supply only act as a redundant power supply (active/standby), or can it become a "pool" of power similar to power sharing mode for StackPower (somewhat active/active)?  I understand there is no stack involved here but I'm curious if this functionality is possible.

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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 :: 2960-S To 2960-LST Configuration Over Fiber?

Feb 11, 2013

I have a 24 port 2960-S that is not communicating with a 2960-LST that it is directly connected to over fiber.  The link is up on the LST but will not come up on the -S.  What command should I use to bring up this link?  I have tried no shut from the (Config-if)# prompt.         

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Cisco Switching/Routing :: C3750 Switch To Increase Accessing Speed

May 19, 2013

Our client having one c3750 with ipbase license switch.They are connected server and end switches to that switch.Our customer want to increase the speed to accessing the server at that time I am told to use etherchannel.Customer happy about this and implement the etherchannel configuration.Now i need to configure etherchannel upto 4 physical link.server are connected on port no Ge1/0/10,they want to bind four phical link GE1/0/10-13.how to configure etherchannel in this switch?

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Cisco Switching/Routing :: SUP720 / Performance Increase From 30mbps To 400mbps

Jan 21, 2012

Supervisor Engine 720 options support centralized forwarding rates up to 30Mbps and distributed forwarding rates up to 400Mpps. I never understood the claim of forwarding rate logic in mbps. How i can load the 6509 box to check this forwarding rate?How can the performance increase from 30mbps to 400mbps? is this just because of DFC on all the line cards if yes does it mean i have to add the DFC on SUP as well .

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Cisco WAN :: 2960 - Power Off After Periodic Time?

May 22, 2011

One of my client useing 2960 switch but now face a problen after periodic time power off automaticaly. sometime cooling fan only run. Power of after 10 min or 3/4 hours and after power off it can get any power again. after 10/15 hours when power on then its works again but some times. whats is the problem hardware or software.

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Cisco Switching/Routing :: Access Layer Switching With 2960 / 3560x / 3750x And 4506

Jan 17, 2013

My management has tasked me to give them a high level overview of the different switching we can choose for our new building.
 
This is what I know so far.4 Closets, each closet has 450 ports,One MDF room that is will contain one UCS Chassis and a Nimble iSCSI SAN.
 
I am working on the spreadsheet and it looks like this (Not totally filled):

2960s3560x3750x45064510Approx cost (Each, 48PORT, POE+, 10G uplink, Dual PS, IP BASE)
6K7K8K45K75KMax Capacity192432432192384Backplane speed206464520520ProLeast ExpensiveStackable to 9Stackable to 9ProDual PSDual PSDual PSDual PSDual PSProLayer 3 opt
Layer 3 optDual SupsDual SupsConExpensiveExpensiveConNo Dual PSConLayer 2 OnlyCannot stack more than 4 
For the MDF I would like to use 2 Nexus 5548's with FEX's, and the layer 3 daughter board.  For the IDF's I was thinking of two 4010's.

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Cisco Switching/Routing :: Power Connect 6224 With Routing Enabled With Several VLAN Setup

Jan 19, 2013

I have a power conncet 6224 with routing enabled with several VLANs setup.VLAN Database: 6,8,10,90-254VLAN 6 is our management vlan10 is for our core network services (DNS, Domain, Exchange etc)90-254 are isolated vlans.What I need to accomplish is to prevent vlans 90-254 from communicating with each other and only allow communication to VLAN 10 and the internet. All internet firewall work will be handled by our Sonicwall. [code]

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Cisco Switching/Routing :: InterVlan Routing With 3750 And 2960 Switches?

Nov 21, 2012

I am using a 3750 as a default gateway for multiple Vlans on a few 2960 switches. The trunk lines are configured and working and I have assigned ip addresses to each of the Vlan interfaces on the 3750. My issue is that I can only ping the ip address on the Vlan interface of the 3750 if I have a working computer plugged directly into the Vlan on the 3750. I only have 3 vlans on the 3750 that have hosts directly connected (vlans 2, 10 and 40) the other vlans ( 20 and 70) don't have any clients plugged into them on the 3750 but the hosts reside on 2 different 2960s that connect via trunk ports. How do I keep the vlan interface on the 3750 switch pingable when I don't have hosts directly connected in that vlan on the 3750? (yes, I have enabled ip routing on the 3750)

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Cisco Switching/Routing :: 2960 / SG 300 Switch - VoIP Setup - Asymmetric Routing Not Working

May 21, 2013

I have a Cisco SG 300-20 as the core switch, layer 3. It is 192.168.4.6 on VLAN1 and 192.168.5.1 for VLAN2 (VOIP). All the ports are set in trunk mode. DHCP relay is setup on this switch.
 
The phones connected into a layer 2, Catalyst 2960-S switch. All ports are set in trunk mode. Default gateway on it is set to 192.168.5.1.
 
DHCP for both VLANs is provided by a Windows Server 2008 R2 server (the relay IP 192.168.4.15).
 
There is also an ASA 5510 in the mix which is 192.168.4.1. It has a route added to it for the 192.168.5.0 network to go to the SG 300 (192.168.5.1).
 
Just the two switches can ping each other on the 192.168.5.x network when I "add vlan 2" to the trunk port that is connected between the SG 300 and the 2960. The phones don't get DHCP on the 2960 switch. And I cannot ping 192.168.5.x from the ASA or anything else on the 192.168.4.x network.
 
After a bit of reading on intra-vlan routing for the SG 300 switch, I am thinking the SG 300 has to be the "center" of things so I need to make it 192.168.4.1 to be the gateway for both VLANs and change the ASA to 192.168.4.2 for VLAN1, etc. And I really can't do asymmetric routing with this switch.

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Cisco Switching/Routing :: 2960 Switch Support IP Routing?

Nov 16, 2011

Does the Model "WS-C2960-24PC-L" Supports IP Routing or not?

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Cisco Switching/Routing :: Can't Get Through 2960-s When Using VPN

Dec 26, 2012

I'm having a strange problem where I'm not able to get through a Cisco 2960-S L2 switch when connected through vpn, while LAN-WAN traffic is working fine.The situation on site is the following:When inside the network I'm able to get to the internet without a problem. The problem is within a vpn-session. When this session is succesfully started I can ping and manage the Cisco 2960-S switch, but I can't ping or manage the Dell switch from my laptop. I can however ping the Dell from the Cisco-switch. [code]

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Cisco Switching/Routing :: Set Up QoS On Two 2960?

May 15, 2012

set up my QoS on two 2960
 
--------------------      -------              -------            ------------
PBX Asterisk |----|2960-1 |------|2960-2 |-----|Voip client2|
--------------------      -------             -------             ------------
--------------              |

[Code].....
 
This will be this configuration for all input interface right ? For the Output part I'm lost, what do I have to do ? And for the 2960-2 do I have to put the same configuration ?

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Cisco Switching/Routing :: 3750-x Won't Power Up

Oct 31, 2012

I recently bought a bunch of cisco 3750-x switches. I configured them all and started deploying them. A day later, some of the switches started failing on me. When I connect the power cord to the AC main, the power supply module on the back shows "AC OK" LED Green but the "PS OK" LED shows Red. I started referring to the installation guide and it told me that "PS OK" LED turns RED when output has failed. Guessing this I checked with another power supply module that was working, but still I get the same LED indicators.The original power supply module works with other switches.IOS crash...?

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Cisco Switching/Routing :: How To Power 3560CG-8PC-S By PoE

Sep 4, 2012

I got some specs here that I can't seem to match with any existing switch - unless the 350CG-8PC-S can be powered by PoE.Let me quickly put down the important specs.
 
8x Gigabit ports
2x 1G Copper or 1G SFP Uplinks (It'll be a 1x Copper and 1x SFP setup)
support for PoE passthrough ( so just capable of it, provided it's 2x Copper Uplinks )
 
Does that match the 350CG-8PC-S ?

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Cisco Switching/Routing :: 3750X Power Needs For PoE

Mar 21, 2013

I am building a switch stack using 4 48 port 3750X switches that will also have the power stacked.  If I install a single 715W power supply in each switch will the stack support 802.3af accross all 48 ports on each switch?  My calculations are 48 ports x 15.4W which gives me almost 740W needed which is over hte 715W power supply.  I was reading somewhere were it mentioned that in a powerstack additional power can be drawn from the stack.  I know this will not work if you are trying to support power on all switches accross all ports but would it if say 2 of the 4 switches are needing to provide PoE accross all 48 ports?  If I say we can only use 24 ports per switch for PoE that drops the power need down to 370W which I believe should work.  Just trying to get a better understanding of PoE consumption.  Would the best solution be to just add a second power supply to each switch?

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Cisco Switching/Routing :: 2960 - Ports Going Up And Down?

Nov 7, 2012

we hava a couple of 2960 switches and we are logging to a syslog server. Ports keep going up and down is it normal severity (error)   ?

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Cisco Switching/Routing :: 2960 What Can Block ARP

Feb 23, 2012

We recently updated a site2site link to metro ethernet, ISP call it 100mbps LAN Extension, but to me it is just QinQ over fibre connection. Most went well, one thing (annoying to me) is we can not ping our switches on both ends anymore.
 
We have a 3750 in headend and another 2960 on the other end. I used to be able to ping/telnet to the management IP from one to the other. Now we can not. I think the ISP is applying some configuration on ports of their customer-premises equipments (both are Cisco switches) but agent in ISP told me no. I thought there is some configuration on Cisco switch to block "MAC discovery" but i just can not remmenber what was that and google also failed me this time.

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Cisco Switching/Routing :: 2960 ISP Can't Provide Stp

Apr 20, 2013

I have got two links from the same ISP, primary and secondary and connected to two different switch. The ISP have passed the trunk vlan of 30, 31 and 32 on both of the links. The ISP can't provide stp. I have got another managed 2960 series switch. How can I obtain failover on switch level.

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Cisco Switching/Routing :: Configuring Qos In 2960?

Feb 21, 2013

I have IP phones connected to 2960 i want to segregate traffic traffic comming from IP phones which has a COS value of 5 and want to allocate a band width of 200 MBPS for those traffic .
 
Can any one share sample QOS configuration for achiving this in  2960 ?

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Cisco Switching/Routing :: 2960 Crashed And IOS Gone

Mar 10, 2012

My cisco ios 2960S is crashed and the ios is gone The issue is i am connecting my pc to management port and i give switch:

IP_ADDR x.x.x.x/255.255.255.0 and also switch: DEFAULT-ROUTER
 
But i can not copy tftp to flash,according that i have L3 port (management) why should i use xmodem?

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Cisco Switching/Routing :: Connect SB With 2960 SW

Mar 16, 2012

I have 2 switches connected Via MM fiber cable one of them SRW2024-K9-NA with MGBSX1 Transceiver and the Secand One 2960 with GLC-SX-MM
 
are there is any configration must be done or not ?

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Cisco Switching/Routing :: 2960 QOS Connection

Jul 2, 2012

I currently have a network with (8) 2960 Cisco Switches.  (6) of the 2960 switches are etherchanneled back to (2) 2960 switches in the computer room.  I would like to setup QOS on the (8) switches, however the traffic is very differnt on each of the switches.  I have video, ip phone, server, printer, PC traffic.  I am not sure what the best method of separating this traffic into differnt QOS queues.

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Cisco Switching/Routing :: 2960 How To Login To Ssh

Jan 6, 2012

we have a cisco 2960 48 port tcl switch port and i've enable ssh on my switch and now :

1) how can i login to ssh ? how should create username for ssh ?
2) how can i disable telnet ?
3) how can i change main (master) password?

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Cisco Switching/Routing :: SSH Not Working With 2960

Jun 4, 2012

I have an switch 2960 and i have made an SSH connection . But the problem is that whenever i try to open with my teraterm or putty it ask for username and after that password but does take the password. It shows an error of password what should be the problem.
 
Commands that i entered to make SSH
 
config# username admin password pankaj
 
config# ip domain-name home.local
 
config# crypto key generate rsa
 
config# 1024
 
config# ip ssh version 2

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Cisco Switching/Routing :: 2960 SSH Not Working

Jun 4, 2012

I have an switch 2960 and i have made an SSH connection . But the problem is that whenever i try to open with my teraterm or putty it ask for username and after that password but does take the password. It shows an error of password what should be the problem.

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