Cisco Switching/Routing :: 2960 - Remote Syslog On Different UDP / TCP Port Possible

Oct 22, 2011

I have a couple of Cisco 2960's sending syslog messages to a remote syslog-ng on port 514 (standard).
 
I need to set another Swtich so it sends traffic to the same syslog server but on another UDP port (such as 714),, is that possible,? I cannot find the option on the documentation.

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Cisco Switching/Routing :: Upgraded 2960 Switches To 15.0 (1) SE - Syslog Message On Bootup

Oct 8, 2011

I recently upgraded a few 2960 switches to 15.0(1)SE, and while they are working fine, I did notice a strange syslog message upon boot-up that wasn't previously there. [code] I did some cursory searching via google but nothing useful presented itself.

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Cisco Switching/Routing :: 9500 Is It Possible To Change UDP Port For Syslog Messages

Jun 12, 2012

Is there any way to change the port that is used for syslog messages on a Cisco 9500 switch?By default this is set to UDP port 514.There doesn't seem to be a command to change the port.

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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 :: 2960 / Which Port Is On VLAN 10

Mar 5, 2012

I have a Cisco 2960 48-port switch.  I enter "sh vlan" and it lists all the VLAN's.  One of the VLAN's listed is "10" with the name "EPIC".  What is the quickest way to find out what ports, if any, are assigned to this VLAN?

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Cisco Switching/Routing :: 2960-S Port Blocked By STP

Aug 29, 2012

Our company bought a Cisco 2960-S to add to the network, We gave the interface VLAN 1 an IP address, and tried to attached the switch to a jack port on the wall to test if it gets a link or not. The status of the port blinks amber and stays contionous amber, I have searched the manual of the switch and it says that amber means that the port is being blocked by STP.

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Cisco Switching/Routing :: 2960 Which Port On Switch Its Connected

Mar 2, 2012

If I knew the IP address of a host, can we know on which port on the switch its connected. The switch model is 2960

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Cisco Switching/Routing :: Rate Limit 2960 Port To 1 MB

Nov 5, 2009

To rate limit the 2960 switch port to 1 MB.I have made the specified chnages , how ever still it is reaching more tha 1 MB
 
Hard coded the bandwidth of port to 10 MB and have applied the specified command srr-queue bandwidth limit 10.

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Cisco Switching/Routing :: 2960 - Turn Off Port Security

Dec 15, 2009

One of my engineers issued a command to turn off port security on a number of ports using the range command. The command failed on the first attempt due to a tacacs auth failure which I suspect is due to a low tacacs timeout value. The engineer then reduced the number of ports in the range command and re-issued the config change after which the switch just crashed and rebooted.
 
The logging buffer on the switch displays the following:
 
000072: *Mar 1 00:03:00 GMT: %PLATFORM-1-CRASHED: System previously crashed with the following message:
000073: *Mar 1 00:03:00 GMT: %PLATFORM-1-CRASHED: Cisco IOS Software, C2960 Software (C2960-LANBASEK9-M), Version 12.2(50)SE3, RELEASE SOFTWARE (fc1)
000074: *Mar 1 00:03:00 GMT: %PLATFORM-1-CRASHED: Technical Support: [URL]
000075: *Mar 1 00:03:00 GMT: %PLATFORM-1-CRASHED: Copyright (c) 1986-2009 by Cisco Systems, Inc.
000076: *Mar 1 00:03:00 GMT: %PLATFORM-1-CRASHED: Compiled Wed 22-Jul-09 07:03 by prod_rel_team
000077: *Mar 1 00:03:00 GMT: %PLATFORM-1-CRASHED:
[Code]........
 
I have done some searching and this could be related to bug CSCsq71492. I have tried using the output interpreter but it is still down. 

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Cisco Switching/Routing :: 2960 - Disable TCP Port 4786

Mar 1, 2010

I have upgraded a couple of 2960G switches to 12.2.52SE and now discovered that TCP port 4786 is open on the switches.
 
I have looked in the document{URL}, trying to find a way to disable this function/port, but didn't find anything useful. Any way to disable this function/port?

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Cisco Switching/Routing :: Cat 2960 Shows Mac Address Port As Dropped?

Jul 30, 2012

I am configuring a Cat 2960 port for connecting a VOIP phone, authenticated by MAB.  On connecting the phone, I get the port authenticated and assigned to the correct VLAN, with LLDP-MED advertising the correct voice vlan.  However, I then see no traffic from the phone on the switch.  I can see the MAC address of the phone is learned in the right VLANs, but the mac address is showing as "Drop", which normally means the address is statically configured to be blocked.  There is no static mac address table blocking configured on the switch. 

Switch Version
Switch Ports Model              SW Version            SW Image
------ ----- -----              ----------            ----------
*    1 50    WS-C2960-48TC-L    15.0(1)SE3            C2960-LANBASEK9-M
 Port configuration
interface FastEthernet0/1
description "Standard user port"

[code].....

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Cisco Switching/Routing :: Port / MAC Based DHCP For 2960 And 3560

Jan 3, 2012

I want to implement port-based and MAC-based in these two switches: 2960 & 3560 (both of them have this IOS version: 12.2(55)SE1). And I haven't found a way to implement both of them at the same time. This is what I got:
 
ip dhcp use subscriber-id client-id
ip dhcp subscriber-id interface-name
ip dhcp excluded-address 192.168.0.0 192.168.0.2
ip dhcp excluded-address 192.168.0.251 192.168.0.255

[code]....
 
With this configuration I can use port-based, but not MAC based. If I remove the first two lines and change the last line for this one:

address 192.168.0.7 client-id 0112.ae1d.af58.60

Then, the computer with that MAC address got the correct IP, but then the port-based doesn't work. Also, I got this line in the interface what I want to use MAC-based: 

ip dhcp server use subscriber-id client-id

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Cisco Switching/Routing :: 2960 -Destination Port Not Responding Over SPAN

Jun 8, 2012

i have configured SPAN over cisco 2960 to monitor source port traffic but after configuration i dont able to get response from destination port  as my NMS is attached on destination port so i lost its web interface.
 
Configuration is as under.
 
monitor session 1 source interface gigabitEthernet0/5  (Source Port on Vlan 100) monitor session 1 destination interface gigabitEthernet0/1 (Destination Port on Vlan 200)

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Cisco Switching/Routing :: Connecting 4510 TenGig Port To 2960

Mar 10, 2013

I am planning on deploying a 2960 switch and will need to uplink it to a 4510 switch. There are 2 TenGig Ports available and I was thinking of uplinking  one of them to the 1Gb SFP port on the 2960. Would this work?

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Cisco Switching/Routing :: 2960 Support Multiple Vlan Per Port?

May 21, 2012

We're going to be switching some of our gear from Foundry to Cisco, and were looking at the WS-C2960S-48TS-L.  We currently have 3 different VLAN's, and I wanted to have 1 uplink back to our firewall (ASA 5550) and then let the firewall do the routing between the subnets.  I realize that 1 link will carry the traffic twice then, but is that possibly with those switches to have all three vlans assigned to one port and then just let the firewall do the routing between the vlans or would I need to have 3 uplink ports back to the 5550?

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Cisco Switching/Routing :: 2960 Err-disable Port State Recovery

Jan 25, 2012

I am testing 2960 24 S  with storm-control  and Errdisable Port timer interval 60s , connected HUB on fa0/17 to make traffic / loop.After Strom Control detection the interface goes down thats ok  after 60s they will try to recover the interface and going up although the loop is still there.For my understanding if the interface detect still a loop on that interface they will disable the port again for 60s and will check  again. [code]

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Cisco Switching/Routing :: Configured Port Security On 2960 Switches

Feb 18, 2013

I configured port security on my 2960 switches with the following commands: [code]
 
The problem is that when I should change someone's PC, first I disable port-secirity, then I clear all the mac addresses learned on the interface, then I plug the new PC and enable port-security. The new PC couldn't connect to the network and it's mac address has not be learned on the interface. Why?Which commands should I use to clear an old mac address and enable port-security with the new mac address.

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Cisco Switching/Routing :: 2960 - Enable Snmp For Switch Port

Dec 18, 2011

i want use CACTI for monitor my bandwidth so i have a question how can i enable snmp for a switch port ? or i shoudl just enable snmp from configuratiopn terminal and then in CACTI i will choose which port will be monitor? can i do something that CACTI connect to my switch with a encryption key ? i have cisco 2960 48 port switch

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Cisco Switching/Routing :: 2960 - Switch Port High Utilization

Aug 16, 2012

In my network we use all cisco 2960 switches, problem is when someone copying  4gb data or high from one switch to another switch, by that time rto (Request time out) is coming.
  
router
|
|
|

[Code]....
 
1. when user 1 copy data from server ,at that time who is in switch2 behind like user2 ,he is getting problem like when ping to default-gateway,or rto is coming and network is very slow .
 
2. when i open sw2,sw1,sw3,trunk ports utilization is very high except sw4 to sw1 trunk ports,who behind sw4 like user4 ,he is not getting problem.
 
3.all switches trunkport in my network is faster ethernet and i have no option to connect trunkport to gigaehternet and ethernet channel.

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Cisco Switching/Routing :: 2960 / 3750 - Port Disables Every 10 Minutes

Aug 15, 2012

I am experiencing the same problem described in this post {URL}. I have seen this happen on different networks, with different equipment attached. It happens on both 2960 and 3750 switches. Basically the connection drops, and we see in the web interface "Port is Disabled". This appears to happen every 10 minutes.
 
On the CLI, the status shows as connected.
 
Port Name      Status       V lan       Duplex  Speed Type
Fa0/38             connected     1          a-full  a-100 10/100BaseTX
 
I have ran cable diagnostics while the drop out is occurring.
 
Interface Speed Local pair Pair length        Remote pair Pair status
--------- ----- ---------- ----------------- ----------- -------------------
Fa0/38    100M  Pair A     28   +/- 15 meters Pair B      Normal
[code]... 
 
During the outage, I see the duplex fluctuate between full and half. The outage occurs for approx 90 seconds. If I fix the duplex and speed at both ends, the outage reduces to around 30 seconds. If I apply spanning-tree port fast the outage reduces further to around 10 seconds. Before I change any configuration on the port, the logs show the interface going down
 
Aug 16 13:06:51.875: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/38, changed state to down
Aug 16 13:06:52.874: %LINK-3-UPDOWN: Interface FastEthernet0/38, changed state to down
[code]...
 
However, once I apply the configuration nothing is logged. However we can still see the connection is disappearing for around 10 seconds. I suspect the issue wasn't resolved for the person reporting the problem in the link above, but because the outage is minimized, and not being logged it is going unnoticed.

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Cisco Switching/Routing :: 2960 48PST - How To Identify If Switch Port Is Burned Via Cli

Jan 21, 2013

Is there a way to identify if a switch port is burned via CLI? I have a 2960-48PST switch and some ports don't provide power to a PoE device connected. When I change the port, the device turns on.

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Cisco Switching/Routing :: Catalyst 2960 Switch Port Bandwidth Limit?

Sep 18, 2012

I want to configure switch port bandwidth limit for my Catalyst 2960-48, is there any hardware / ios limitation? can I configure it at all 48 switch ports?

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Cisco Switching/Routing :: Limit Bandwidth On A Gig Port Of 2960 Or 4506e Switch?

Apr 4, 2012

how can i limit bandwidth on a gig port of 2960 or 4506e switch?

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Cisco Switching/Routing :: Obtain Replacement Rackmount Kit For 2960 48 Port Switch?

Dec 1, 2012

Is it possible to obtain a replacement rackmount kit for a 2960 48 port switch? I've had a read of the manuals but can't see a part number specified. The part number suggested to me (by BT) is for the 8 port version, which is not much use.

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Cisco Switching/Routing :: SPAN / Monitoring Destination Port Behaviour - 2960 LAN

Jan 16, 2012

In s SPAN session , normally the destination prt is used for monitoring purpose only. But could destination port be used to access the equipement or PC connected to that port , for a 2960 LAN BASE image  switch .

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Cisco Switching/Routing :: Configure 2960 8 Port Switch With DHCP Server?

Jun 24, 2012

I need to configure a Cisco 2960 switch as a DHCP server.    The current IP address will be on a different seed than the DHCP addresses.  i.e.
 
Switch IP = 10.1.2.3, GW = 10.1.2.1, Subnet = 255.255.255.0
DHCP addresses would be 192.168.1.1 - 200, GW=???? (10.1.2.3?) and subnet would be 255.255.255.0

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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 :: 2960 - DHCP Server Port-Based Address Allocation

Nov 15, 2012

Does the 2960 switches with LAN-Lite support DHCP Server Port-Based Address Allocation?

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Cisco Switching/Routing :: Monitoring Port-Security Error-Disable And HSRP With 1921 And 2960

Aug 1, 2012

I am looking to simply monitor Port-Security , Error-Disable and HSRP. I would like to receive an email when any of these are triggered.
 
Port Security - Port Is shut down
Err-Disable - Port goes into err-disable state (securedown)
HSRP - When HSRP standyby changes are detected
 
I need to receive emails with any of the able are triggered. What is the easiest way to do this? I know SNMP is the main option but I have never worked with SNMP and dont understand it too much.

Equipment:
2x Cisco 1921 series routers
3x Cisco 2960 POE switches stacked

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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 :: Way To Get More Messages Out Of 2950 Set To Syslog

Feb 11, 2012

Is there a way to get more messages out of a 2950 set to syslog? I've turned every logging option I can find to DEBUG, but all I get in my syslog are LinkUp/Down messages and "Configured from console by console". I'd love to see more information such as configuration changes, or even someone attempting to set up DTP on a switchport set to access mode.

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Cisco :: CiscoWorks LMS 4.0.1 And Remote Syslog Collector

Nov 11, 2012

I'm using CiscoWorks LMS 4.0.1 and I need to activate a remote syslog collector.Installation occur without errors and the test subscription is fine but syslog reports are always empty!These two servers need to communicate through a firewall.I'm not able to define a correct rule, a "permit ip any any" does not work also!

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