Why choose Cisco Catalyst WS-C2960-24TC-L Switch ?

As the new family of fixed-configuration standalone devices, Cisco 2960s series intelligent Ethernet Switches provide desktop 10/100 Fast Ethernet and 10/100/1000 Gigabit Ethernet connectivity for entry-level enterprise, mid-market, and branch office networks
to enable enhanced LAN services.
Why choose cisco WS-C2960-24TC-L ?
The Cisco Catalyst WS-C2960-24TC-L has hardware enhancements for network managers, including configurations featuring dual-purpose (alternatively wired) uplinks for Gigabit Ethernet, allowing the network manager to use their Cisco switches as either a copper
or a fiber uplink.

Agreed! WS-C2960-24TC-L has hardware enhancements for network managers, and if you want to buy it, here 3anetwork.com 64%
off, USD 460 !

Similar Messages

Cisco WS-C2960-24TC-S switch connectivity problam

I configured my cisco WS-C3750X-12S-S with ip routing and it is working properly. i configured a cisco WS-C2960-24TC-S switch and connect both switches via Fiber. each switches can communicate with other end. i can connect to C3750X from my local WAN, all interfaces are working properly but i cant connect to L2 switch from WAN. please help me.
(test result pages attached)

Dear
the fast Ethernet interface on the switch is meant only for OOB (out of band management) so this way you will not be able to route traffic. It will not communicate to any other subnets apart from the connected subnet. Its better you create a SVI in the switch and use that SVI for management purposes.
regards
Najeeb

802.1x on Cisco Catalyst 2960

I am trying to enable 802.1x on one of
the switchports of the Cisco Catalyst
2960:
C2960#sh run | i radius
aaa authentication login test group radius local
aaa authentication dot1x default group radius
radius-server host 10.250.97.26 auth-port 1812 acct-port 1813
radius-server source-ports 1645-1646
radius-server key 123456
C2960#sh run | i dot
aaa authentication dot1x default group radius
dot1x system-auth-control
dot1x guest-vlan supplicant
dot1x critical eapol
C2960#conf t
Enter configuration commands, one per line. End with CNTL/Z.
C2960(config)#int g0/14
C2960(config-if)#dot1x ?
% Unrecognized command
C2960(config-if)#dot1x
As you can see, I can not enable 802.1x
at the interface level. The code is am running is 12.2.25SEE4:
Switch Ports Model SW Version SW Image
* 1 24 WS-C2960G-24TC-L 12.2(25)SEE4 C2960-LANBASEK9-M
System image file is "flash:c2960-lanbasek9-mz.122-25.SEE4.bin"
According to Cisco, this image supports
802.1x. Why can't enable it at the
interface level?
Can someone help me out? Thanks.

some additional info:
C2960#sh dot1x all
Sysauthcontrol Enabled
Dot1x Protocol Version 2
Critical Recovery Delay 100
Critical EAPOL Enabled
C2960#

Cisco Catalyst 2955 Causes Some Devices to "Die" During Boot

I posted this question in the LAN section of the forums, but I realize this is probably the proper forum for my question.
I have recently purchased a Cisco Catalyst model WS-2955C-12 switch. During POST (boot), the console reports that the switch undergoes what is known as a "FRONT-END LOOPBACK TEST". During this test the 14 port lights on the device light up amber for a moment, connectivity is lost, and after a second or two the lights go off and connectivity returns. We've found that the moment the lights go off at the end of this test, if we have a specific device (with a specific ethernet chip) directly connected to the switch the ethernet chip is adversely affected by this test - the device "goes dark" and is not capable of communicating with anything (including other switches, routers, etc...) until it is power-cycled. What exactly does this FRONT-END LOOPBACK TEST do (I know it's for validating the ports for hardware defects), and what does it send across the wire that could be causing my ethernet chip onboard the device to go bonkers?
Thanks!
-Danny

The ethernet chip on the device (the device is a National Instruments product) is an STMicro STE10/100E, and I'm fairly confident I now know what's happening but I don't know why.
When my ethernet chip is in Autonegotiate mode, the "FRONT-END LOOPBACK TEST" performed by the catalyst does something where, at the conclusion of the test, the ethernet chip goes into an autonegotiation state and never comes back out of it. I'm thinking the "FRONT-END LOOPBACK TEST" is sending something across the wire that's confusing this specific ethernet chip; I've tried 3 Intel parts and also a Broadcom part and they rode it out in autonegotiation mode just fine. If I put the STE chip into a manually-configured mode the "FRONT-END LOOPBACK TEST" doesn't cause it to "go dark".
So, my question is really what does the FRONT-END LOOPBACK TEST do? Does it perform a remote loopback test (the STE10/100E doesn't support loopback tests)?
-Danny

IGMP Snooping configuration for Multicasting on Cisco Catalyst 3020

IGMP Snooping configuration for Multicasting on Cisco Catalyst 3020
Hi Guru,
Our switch model is "Cisco Catalyst Blade Switch 3020 for HP"
We are building HA (High Availability) Databases infrastructure.
Currently, there are two nodes(hosts- servers) and two above switch for HA.
Oracle said we need to turn off the IGMP Snooping in order to use the multicasting for their interconnect communication.
So my question is:
Q1> Is there any way to use Multicasting without turning off IGMP Snooping on Switch side?
Q2> If 'yes', how can we configure the switch for Multicasting ?
Oracle uses 230.0.1.0 & 224.0.0.251 IPs with 42000 range port for Multicasting communication.
Please shed some light on it

May I request if you avoid making multiple posts of the same issue? This will only confuse people (including you).

Cisco Catalyst 2960X Ethernet Switch

"I want to buy Catalyst 2960-X series switches like WS-C2960X-24PS-L,WS-C2960X-24PD-L, buy I'm not very well know about c2960x series. Can someone help me ?"--from yahoo answer.
All Catalyst 2960-X Series Switches use a single Universal Cisco IOS Software Image for all SKUs.Cisco Catalyst 2960-X Family of Switches are available with the LAN Base and LAN Lite feature sets.
WS-C2960X-24PS-L Overview
Catalyst 2960-X 24 GigE PoE 370W, 4 x 1G SFP, LAN Base Switch
WS-C2960X-24PD-L Overview
Catalyst 2960-X 24 GigE PoE 370W, 2 x 10G SFP+, LAN Base Switch

If you buy the LAN Base model, you'll have all of Cisco's normal switching features and options. My company has purchased many of these switches, and they work very well. Remember, these are access layer switches. If you're looking for something to be an aggregate switch for things that push a lot more data (ex. several wireless controllers), you'll want to go for something more powerful.

WS-C2960-24TC-L - %PLATFORM_PM-3-HOSTACCESSFAIL - error

Hello,
I have issue with 3 ports on the switch.
Once I put he following commands under the port I got error message :
authentication control-direction in
authentication host-mode multi-auth
authentication port-control auto
authentication periodic
authentication timer restart 240
authentication timer reauthenticate server
authentication timer inactivity server
mab
*Jun 7 06:45:18: %PLATFORM_PM-3-HOSTACCESSFAIL: Unable to configure hardware to restrict host access on Fa0/17. Port may not behave as expected.
*Jun 7 06:45:18: %PM-4-ERR_DISABLE: port-mode-failure error detected on Fa0/17, putting Fa0/17 in err-disable state
I have the same configuration under other ports and I don't have any issue.
When I remove these commands , these 3 ports are working fine.
What's going on ? Can you help me to find the root cause ?
The device is WS-C2960-24TC-L, Version 12.2(58)SE2
The current configuration of port is here :
interface FastEthernet0/17
switchport access vlan 274
switchport mode access
switchport nonegotiate
switchport voice vlan 1293
speed 100
duplex full
mls qos trust dscp
spanning-tree portfast
Thank you,
Jan

Hi Kartnik,
I found some bugs related to these error message and one is describing our issue :
CSCui14520
Symptom:
Several ports which are 802.1X-enabled port go into err-disable intermittently.
Jan 21 13:56:09: PLATFORM_PM-3-HOSTACCESSFAIL Unable to configure hardware to restrict host access on Fa0/9. Port may not behave as expected.
Jan 21 13:56:09: PM-4-ERR_DISABLE port-mode-failure error detected on Fa0/9, putting Fa0/9 in err-disable state
Workaround:
"shut" / "no shut" the port
Last Modified:
Apr 7,2014
Status:
Terminated
Severity:
3 Moderate
Product:
Cisco Catalyst 2960 Series Switches
Known Affected Releases: (1)
12.2(53)SE2
Known Fixed Releases: (0)
No release planned to fix this bug

Switch WS-C2960+24TC-L not recognized by CNA

Switch WS-C2960+24TC-L not recognized by Cisco network assistant. Switch is running on IOS 15.0(2)SE5, CNA 5.8(8.9). CNA show switch as wireless klient.
I tried upgrade but not help.

Yes 6.1 supports it , 5.8 does not
http://www.cisco.com/c/en/us/td/docs/net_mgmt/cisco_network_assistant/version6/relnotes/ol32368.html
With Cisco Network Assistant 6.0, you can manage these devices:
Catalyst 2960-Plus switches
– WS-C2960+24PC-L
– WS-C2960+24LC-L
– WS-C2960+48TC-L
– WS-C2960+24TC-L
– WS-C2960+48PST-S

Ask the Expert: Layer 2 Security on Cisco Catalyst Platforms

With Wilson Bonilla
Welcome to the Cisco Support Community Ask the Expert conversation. This is an opportunity to learn and ask questions about about issues in designing, planning, and implementing Layer 2 security in your LAN network with expert Wilson Bonilla.
Wilson will cover topics that network engineers face daily such as Spanning Tree Protocol security, private VLANs, IP source guard, protected ports, dynamic ARP inspection, virtual LAN access-control lists (VLAN ACLs), and Dynamic Host Configuration Protocol (DHCP) snooping over Cisco Catalyst platforms. With the fast growth of networks, Layer 2 security is even more critical in the LAN to help your network become more reliable, efficient, and secure. Wilson will answer your questions about LAN networks with Cisco Catalyst switches.
Wilson Bonilla is a technical networking trainer at the Learning and Development Department for Cisco Technical Assistance Center located in Costa Rica. Before joining the Training Department, he worked for the Cisco TAC as a customer support engineer focused on LAN Switching for more than two years. While working on LAN switching, Wilson also had roles such as technical leader and trainer, adding to his area of expertise in Cisco Catalyst Layer 2 switching. He has CCNP routing and switching certification and is currently studying to achieve his CCNA certification in data center.
Remember to use the rating system to let Wilson know if you've received an adequate response.
Because of the volume expected during this event, Wilson might not be able to answer every question. Remember that you can continue the conversation in the Network Infrastructure community, subcommunity, LAN, Switching and Routing, shortly after the event. This event lasts through November, 2013. Visit this forum often to view responses to your questions and those of other Cisco Support Community members.

Hello NetNavi.
Check the post above about MacSec for more information and let me know if you need further clarification, if so I will do my best,
In regards to best practices there is a Cisco document; it describes deployments and best practices in every scenario; Supplicants, authenticator, authentication services and other configurations. Please check it out:
http://www.cisco.com/en/US/prod/collateral/iosswrel/ps6537/ps6586/ps6638/deploy_guide_c17-663760.html
In regards to Private VLANS:
What is a Private Vlan?
A private Vlan is a way to isolate hosts within the same Vlan or broadcast domain. So even when you might have devices sharing the same broadcast domain they can be isolated, this isolated is configured based on sub-domains also most often called primary and secondary Vlans.
What is a primary Vlan?
The primary Vlan is representation of the private Vlan, a primary Vlan has one or more secondary Vlans, a switch uses the primary Vlan to present traffic from the secondary Vlans to its neighboring devices.
What is a secondary Vlan?
A secondary Vlan is a sub-domain of the primary Vlan. We could say that the secondary Vlans belongs to the primary. The must be associated to a primary Vlan. There are two types of secondary vlans: Isolated and Community secondary Vlans.
What does it happen to host within a secondary isolated Vlan?
Host within the isolated vlan; can’t communicate to neither other host in the same isoalted vlan nor host in a community vlan.
What does it happen to host within the secondary community Vlan?
Host within the community Vlan can communicate with other host assigned to the same community vlan, but they can’t talk to host in other community vlans.
What are the benefits of implementing private Vlans?
Scalability: The most common scenario is a service provider. Imagine all customers of a service provider connected through DSL, cable modem… it’s very likely that all customers belong to the same broadcast domain, however if that’s the case why is it that I can’t use my neighbor’s printer, or maybe why is it that I can’t access the files he has store in his computer, (security) we are in the same broadcast shouldn’t I be able to at least ping his ip address?. Well that’s because the ISP must guarantee some type of security for their customers, and because put every single customer that they have in a single Vlan is not scalable they use private Vlans.
Examples:
ISP use private vlans to protect from security bridges, Private vlans and isolated Vlans are used to protect personal information for example from one customer to another.
DMZ; Many implementations utilizes private vlans in a DMZ to limt or minimize that risk of a compromised server.
I would like to share this documentation with you for further information and configuration guidelines
http://www.cisco.com/en/US/tech/tk389/tk814/technologies_configuration_example09186a008017acad.shtml#hw
This document explains what Cisco Catalyst switches support Private Vlans.
http://www.cisco.com/en/US/products/hw/switches/ps708/products_tech_note09186a0080094830.shtml
Let me know if you have further questions.
Regards
Wilson B.

Cisco Catalyst 6500 version 12.2(33)SXI13 configured as DHCP server for a VLAN responds to Windows 7 client with status code NOA

Can anyone help figure out why the Catalyst 6509 is not able to assign an IPv6 address? Thank you.
Cisco Catalyst 6500 version 12.2(33)SXI13 configured as DHCP server for a VLAN responds to Windows 7 client with status code NOADDRS-AVAIL(2). My configuration on the 6500 for the DHCPv6 server is:
ipv6 dhcp database disk0://DHCPV6-DB
ipv6 dhcp pool VLAN206IPV6
prefix-delegation pool VLAN206IPV6-POOL
dns-server 2620:B700:0:1001::53
domain-name global.bio.com
ipv6 local pool VLAN206IPV6-POOL 2620:B700:0:12C7::/65 65
interface Vlan206
description *** IPv6 Subnet ***
ip address 10.2.104.2 255.255.255.0
ipv6 address 2620:B700:0:12C7::2/64
ipv6 nd prefix 2620:B700:0:12C7::/64 14400 14400 no-autoconfig
ipv6 nd managed-config-flag
ipv6 dhcp server VLAN206IPV6
standby version 2
standby 0 ip 10.2.104.1
standby 0 preempt
standby 6 ipv6 2620:B700:0:12C7::1/64
standby 6 preempt
I'm getting a result from my debug as follows:
Apr 10 16:28:02.873 PDT: %LINK-3-UPDOWN: Interface GigabitEthernet2/2, changed state to up
Apr 10 16:28:02.873 PDT: %LINK-SP-3-UPDOWN: Interface GigabitEthernet2/2, changed state to up
Apr 10 16:28:02.877 PDT: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet2/2, changed state to up
Apr 10 16:28:03.861 PDT: IPv6 DHCP: Received SOLICIT from FE80::5D5E:7EBD:CDBF:2519 on Vlan206
Apr 10 16:28:03.861 PDT: IPv6 DHCP: detailed packet contents
Apr 10 16:28:03.861 PDT: src FE80::5D5E:7EBD:CDBF:2519 (Vlan206)
Apr 10 16:28:03.861 PDT: dst FF02::1:2
Apr 10 16:28:03.861 PDT: type SOLICIT(1), xid 8277025
Apr 10 16:28:03.861 PDT: option ELAPSED-TIME(8), len 2
Apr 10 16:28:03.861 PDT: elapsed-time 101
Apr 10 16:28:03.861 PDT: option CLIENTID(1), len 14
Apr 10 16:28:03.861 PDT: 00010001195FD895F01FAF10689E
Apr 10 16:28:03.861 PDT: option IA-NA(3), len 12
Apr 10 16:28:03.861 PDT: IAID 0x0FF01FAF, T1 0, T2 0
Apr 10 16:28:03.861 PDT: option UNKNOWN(39), len 32
Apr 10 16:28:03.861 PDT: option VENDOR-CLASS(16), len 14
Apr 10 16:28:03.861 PDT: option ORO(6), len 8
Apr 10 16:28:03.861 PDT: DOMAIN-LIST,DNS-SERVERS,VENDOR-OPTS,UNKNOWN
Apr 10 16:28:03.861 PDT: IPv6 DHCP: Option IA-NA(3) is not supported yet
Apr 10 16:28:03.861 PDT: IPv6 DHCP: Sending ADVERTISE to FE80::5D5E:7EBD:CDBF:2519 on Vlan206
Apr 10 16:28:03.861 PDT: IPv6 DHCP: detailed packet contents
Apr 10 16:28:03.861 PDT: src FE80::21D:E6FF:FEE4:4400
Apr 10 16:28:03.861 PDT: dst FE80::5D5E:7EBD:CDBF:2519 (Vlan206)
Apr 10 16:28:03.861 PDT: type ADVERTISE(2), xid 8277025
Apr 10 16:28:03.861 PDT: option SERVERID(2), len 10
Apr 10 16:28:03.865 PDT: 00030001001DE6E44400
Apr 10 16:28:03.865 PDT: option CLIENTID(1), len 14
Apr 10 16:28:03.865 PDT: 00010001195FD895F01FAF10689E
Apr 10 16:28:03.865 PDT: option STATUS-CODE(13), len 15
Apr 10 16:28:03.865 PDT: status code NOADDRS-AVAIL(2)
Apr 10 16:28:03.865 PDT: status message: NOADDRS-AVAIL

Hello,
maybe hitting the following bug.
Pv6 Address Assignment Support for IPv6 DHCP Server
CSCse81385
Hope this helps

Can not config full duplex on Gi0/1 of WS-C2960-24TC-L

Hi,
I have a problem when connect two modules GLC-FX-100FE to two switch WS-C2960-24TC-L as below:
When I plug each SFP module like above to each switch WS-C2960-24TC-L to SFP slot (gigabit 0/1: dual purpose port), then the duplex become to Haft.
So, I can not configure them to full duplex as other copper ports.
But when I use two switch WS-C3560G-24TS-S, I can do this.
OS version of WS-C2960-24TC-L I am using is: c2960-lanbasek9-mz.122-55.SE7.bin, I think it is new.
Please help me solve this problem.
I have to explain to our customer in the next morning. You know, I am Vietnamese and in Vietnam, the time is 22:40 pm,
Thank you so much.

Hi,
in interface configuration mode you have to configure
media-type sfp
Afterwards you can configure media-specific parameters like the duplex mode.
Note: Changing the media-type will cause an outage for a couple of seconds.
Hope that helps
Rolf
http://www.cisco.com/en/US/docs/switches/lan/catalyst2960/software/release/12.2_55_se/command/reference/cli1.html#wp13646909

Cisco catalyst 2690 switch vlanTable

Hi,
I have a cisco catalyst 2690 switch.
I want monitoring IP, MAC, and Port Address.
I use this docu: http://docstore.mik.ua/orelly/perl/sysadmin/ch10_03.htm
This works great:
htvtef7-nagios:/ # snmptranslate -On BRIDGE-MIB:dot1dTpFdbTable
.1.3.6.1.2.1.17.4.3
snmpwalk -c tef7snmp@761 -v 2c 10.76.1.7 .1.3.6.1.2.1.17.4.3
htvtef7-nagios:/ # snmptranslate -On BRIDGE-MIB:dot1dBasePortTable
.1.3.6.1.2.1.17.1.4
snmpwalk -c tef7snmp@761 -v 2c 10.76.1.7 .1.3.6.1.2.1.17.1.4
htvtef7-nagios:/ # snmptranslate -On CISCO-STACK-MIB:vlanTable
.1.3.6.1.4.1.9.5.1.9.2
But I get a error:
htvtef7-nagios:/ # snmpwalk -c tef7snmp -v 2c 10.76.1.7 .1.3.6.1.4.1.9.5.1.9.2
SNMPv2-SMI::enterprises.9.5.1.9.2 = No Such Object available on this agent at this OID
Switch config:
snmp-server community testament RO
snmp-server community tef7snmp RO
snmp-server location XYZ
snmp-server contact MR.XYZ
snmp-server enable traps snmp authentication linkdown linkup coldstart warmstart
snmp-server enable traps tty
snmp-server enable traps cluster
snmp-server enable traps entity
snmp-server enable traps cpu threshold
snmp-server enable traps vtp
snmp-server enable traps vlancreate
snmp-server enable traps vlandelete
snmp-server enable traps flash insertion removal
snmp-server enable traps port-security
snmp-server enable traps envmon
snmp-server enable traps mac-notification
snmp-server enable traps copy-config
snmp-server enable traps config
snmp-server enable traps bridge newroot topologychange
snmp-server enable traps stpx inconsistency root-inconsistency loop-inconsistency
snmp-server enable traps syslog
snmp-server enable traps vlan-membership
snmp-server host XXX.XXX.XXX.XXX public
snmp-server host YYY.YYY.YYY.YYY tef7snmp
What did I do wrong?
THX!

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Thx for the replay!
I use on the switch c2960-lanbasek9-mz.122-25.SEE3.bin (IOS),
the Cisco Feature Navigator say, this IOS support the CISCO-STACK-MIB:
http://tools.cisco.com/ITDIT/MIBS/MainServlet?ReleaseSel=0&PlatformSel=0&fsSel=0&IMAGE_NAME=c2960-lanbasek9-mz.122-25.SEE3.bin&SUBMIT2=Submit&IMAGE_ID=816103
In show snmp mib I could not find the vlanTable. See the attachment.
I du not understand!

WS-C2960-24TC-L vs WS-C2960-48TC-L

I want to buy cisco c2960 series switch which support voice, video, data, and highly secure access. My friend suggest me try to use
WS-C2960-24TC-L or WS-C2960-48TC-L which are equipped with Ethernet 10/100 ports and 2 dual-purpose uplinks. But i don't know what's the difference between them ?

24TC means it's a 24 port, non-PoE.
48TC means it's a 48-port, non-PoE.

Can i upgrade this switch WS-C2960-24TC-L with lastest IOS 15.0(2)SE6.

Can i upgrade this switch WS-C2960-24TC-L with lastest IOS 15.0(2)SE6.

Yes I see that this is supported on this switch. Upgrade to this switch should not face any problem.
Suggested
12.2.55-SE9(MD)
Latest
15.0.2-SE6(MD)
12.2.58-SE2(ED)
http://software.cisco.com/download/release.html?mdfid=279963375&flowid=2547&softwareid=280805680&release=12.2.55-SE9&relind=AVAILABLE&rellifecycle=MD&reltype=latest
HTH
Regards
Inayath

Connection of LC/APC fiber patch cords to Cisco Catalyst 6500 $ Cisco Access 3750 Switches

I have an LC/APC fiber patch cord infrastructure and I want to connect it to Cisco Catalyst 6500 & Cisco Access 3750 Switches. what type of transceiver should be used?
I read a note on Cisco website stating the following for Cisco SFP+ transceivers:
Note: "Only connections with patch cords with PC or UPC connectors are supported. Patch cords with APC connectors are not supported. All cables and cable assemblies used must be compliant with the standards specified in the standards section"

Thank you, but my question is that I have a single mode fiber patch cord with LC/APC connector while cisco stating a note that only use LC/PC or LC/UPC type of connectors with SFP+ transceiver.
So what type of transceiver should I use to connect LC/APC patch cord to cisco switches? Is there another type or SFP+ still can be used?

Why choose Cisco Catalyst WS-C2960-24TC-L Switch ?

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