Linksys Cisco switch 24 ports

Dear All,
Just a question, I have doubt whether Linksys Cisco switch 24 ports SLM2024 and Cisco SLM2024 both are same. Both are look wise and colors are different??
If both are same , are they supports for VLAN?? Can use them in a VLAN environment?? Can anyone tell me the SFP for multimode and single mode which will work with SLM2024, and SLM2048 switches??

Just a question, I have doubt whether Linksys Cisco switch 24 ports SLM2024 and Cisco SLM2024 both are same. Both are look wise and colors are different??
Answer; Both are same:
I would like to inform you that Cisco SLM2024 24-port Gigabit Smart Switch - SFPs .. is EOS.
(http://www.cisco.com/c/en/us/products/switches/slm2024-24-port-gigabit-smart-switch-sfps/index.html)
2-2248 is also EOL/EOS:
http://www.cisco.com/c/en/us/products/switches/slm2048-48-port-gigabit-smart-switch-sfps/index.html
B)
If both are same , are they supports for VLAN?? Can use them in a VLAN environment?? Can anyone tell me the SFP for multimode and single mode which will work with SLM2024, and SLM2048 switches??
Answer:
Yes they support VLAN, You can refer the below link for connfiguring the same:
https://supportforums.cisco.com/discussion/11579161/slm-2024-vlan-config-help
Can anyone tell me the SFP for multimode and single mode which will work with SLM2024, and SLM2048 switches??
http://www.cisco.com/c/en/us/products/switches/slm2048-48-port-gigabit-smart-switch-sfps/index.html
HTH
Inayath
*Plz dont forget to rate the usefull posts.

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Hi Guys, As soon as I connect my switch to the console port, I get the below. I'm trying to do a hard reset , can someone advice me on the below? 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Since this shouldn't be an issue with an 802.3af switch, I hesitate to bring it up, but if your controllers are running any of the new code that allows cdp neighbor you may need to turn that off. In the olden days, you could have either the A radio or cdp neighbor but not both. I just got slapped by this recently, when I upgraded to the new code in the controller and discovered I was in a switch in one facility that could not handle everybody all using cdp, the A and b/g radio.
sh inline power
sh power inline
I forget...but one of these should tell you where you are at...
long story short, if you have cdp capability, you should attempt to turn it off and then reboot everything and see what happens.

Linksys Gbic on Cisco switch

Hi, I would like to know if the linksys Gbic's like MGBLH1, MGBSX1 and MGBT1 will work on cisco switches like Catalyst 3750 or 2950? Or can cisco gbic's be used on linksys switches? Best regards, Rodrigo Catarino

According to Appendix Apecifications in the user guide for the MGBT1, MGBLH1 and MGBSX1, these modules are 'Compliant with Specifications of SFP Transceiver MSA Specification'.
I understand this to mean that it should be compatible with any 'regular' SFP/mini Gbic port? What basis do you have to say it will only work with a Linksys switch?
I am concerned about this as I am developing a product with SFP ports and am trying to get it to work with MGBT1 modules. If the modules are proprietary I obviously need to use different SFP transceivers!

How to search/Scan Vlan of cisco switch ports

Can any one tell me how i can scan/search vlans of cisco switch port through any monitoring tool (orion/solarwinds).
Consider this scenario as i have no access to switch and i want to know below things:
1-Vlans created on switch?
2-which switch port belongs to which vlan id?
Thanks

Hi,
You can do it only with hub in between and also please note that when sniffing with Wireshark on Windows the OS would remove VLAN tag so you may need to use Linux machine.
Regards,
Aleksandra

Changing SSH port in Cisco switches

Hello everyone
I have switches with different platforms 2950 , 3750 , 3560 ...... I want to change the port of SSH , but the command ip ssh port not found ... be informed that the IOS is ipservice type for layer 3 switches

Sorry but you cannot change the port (tcp/22) used by ssh on Cisco switches.
The best practices for securing it it include:
- enforce ssh version 2,
- apply an access-list to your vty lines,
- set a timeout and retry lockout, and
- possibly control plane policing.

Physical port security on Cisco switching

We have a security problem I would like to resolve. Like most sites our wired network has live ports that periodically, non corporate PCs and laptops connect up to without our knowledge. In our network we do not filter for valid MAC addresses although Ive learned this is a poor approach to security as MAC can be changed in about 10 seconds.
I would like a solution that would validate corporate systems and let them through the Cisco layer 3 switching and block out all other devices which attempt connection. We do not currently have IDS or IPS and are not likely to in short term.
Is there a hardware or software or combination solution out there that works well for this ?
Thank you

Steve
2 solutions spring to mind
1) 802.1x authentication. Microsoft XP/Vista has built in 802.1x supplicant and Cisco switches support Network EAP used to pass the 802.1x messages. What you also need is an authentication server such as Cisco Secure ACS server although Microsoft IAS server also supports 802.1x.
Basically before a client is allowed access to the network they have to authenticate to the network with valid credentials otherwise the port is shutdown.
2) NAC - Network Admission Control. This goes one step further than 1) whereby the client is also checked to see if it conforms to company policy eg. does it have the right virus checker on it etc.. and if it doesn't the client can be quarantined.
A search on Cisco's website for both NAC and 802.1x will provide a lot of useful links.
Jon

Firewall Ports Required for NAC manager to manage/add Cisco switch

Hi,
I am trying to add cisco switches to the NAM, however i am not able to add the switch as I am getting the error "unable to control switch" I have tried to open ports 161-162 on the firwall; if i was to allow any traffic between the NAM and switch, the cisco NAM is able to add/manage the switch.
Not sure what other ports may be required for cisco NAM to manage the switch?
Thanks.

Hi,
AFAIK, only the UDP ports 161-162 for the SNMP communication need to be open.
Please make sure you have configured the correct port on the switch:
(config)# snmp-server host 172.16.1.61 traps version 2c cam_v2 udp-port 162 mac-notification snmp
If still not working i would check the logs on the firewall for any blocked traffic between the CAM and the switch.
HTH,
Tiago
If this helps you and/or answers your question please mark the question as "answered" and/or rate it, so other users can easily find it.

Which CISCO switch supports SFP, SFP+ and 10G ethernet ports

I would like to have information about a CISCO switch which can support fiber ports SFP(1g) and SFP+(10g) and copper 1g and 10g ethernet ports. And will it also software upgradable to support L3 protocols ?

You can choose from the Cisco 3560-E, 4900, 4500, and 6500 series switches. That's in order of capability (and cost!), from least to greatest.
The 3560-E and 4900 series are fixed chassis systems (the 4900M is semi-modular) while the 4500 and 6500 series are completely modular - buy the chassis and populate it according to your requirements.
In addition to the references cited above, also refer to the Cisco Products Quick Reference Guide (CPQRG), available at http://www.cisco.com/en/US/prod/qrg/index.html
Hope this helps. Please rate this post if it does.

Cisco 3750x 24 port poe switch single port is faulty.

what i can do if my cisco 3750x 24 port poe switch single port is faulty ????

Duplicate posts.
Go here: http://supportforums.cisco.com/discussion/12187366/cisco-3750x-24-port-poe-switch-failure

Cisco 3750x 24 port poe switch failure

what is the chance of cisco 3750x 24 port poe switch failure? is backup necessary for this ? please answer me in details.

If you have a Cisco switch with, at least, one faulty port you RMA the appliance.
There is nothing more detailed than that.

Find IP address/machine connected to a cisco switch port

hello,
I need to know which IP/device is connecetd to a cisco Switch port.
I can get the mac-address of that switch port using sh mac-add command, but with the mac address how can i find that which ip belongs to this mac.
is there way i can do this, i know i can do the other way meaning with IP i can find to which port its connected ,but dont know how to find this MAC to IP with switch without the need for additional tools

Hey Anantha ,
Hop u r doing good,
If u dont know ip address of devices present on specific vlan and wanted to track end device ip address please try
follow this below
steps 1:ping it to brodcast ip address of subnet
for ex
R1--SW1--SW2--(H1
                             --H2
R1..1.1.1.1/24
H1..1.1.1.2/24
H2.1.1.1.3/24
So u r brodacast ip is 1.1.1.255
ping 1.1.1.255
Sending 1000, 100-byte ICMP Echos to 1.1.1.255, timeout is 2 seconds:
Reply to request 8 from 1.1.1.2, 28 ms
Reply to request 9 from 1.1.1.3, 64 ms
u will get reply from all host present on that segment and ur arp table will get flood with ip and respective mac on
your L3 device...(R1 in this example)
Step2: then u can use command
sh ip arp ..to see ip and respective mac associate with it
R1#sh ip arp
Protocol Address          Age (min) Hardware Addr   Type   Interface
Internet 1.1.1.1                 -   c000.2498.0000 ARPA   Vlan2
Internet 1.1.1.2                 0   c003.2498.0000 ARPA   Vlan2
Step3: see the mac learned from specific port
R1#sh mac address c003.2498.0000
Destination Address Address Type VLAN Destination Port
c003.2498.0000          Dynamic       2     FastEthernet1/1
Step4:If u have all cisco devices then u can use CDP
to check wht device connect to ur interface
R1#sh cdp ne fa1/1 detail
Device ID: SW1.lab.local
Follow this way, hop u will trace devices present on ur network
Hop this informative,
Regards,
Ashish shirkar

CISCO SG200-50 Port Gigabit Smart Switch (VTP Support)

Does CISCO SG200-50 Port Gigabit Smart Switch provide support for VTP or Not. If not how we can make it a VTP client and how it will forward its VLAN information to VTP Server in VTP Domain in which it is connected.
Thanks

Hi Jay,
I am not very sure if this is the correct location to find the MTU, but you may check the following link:-
http://www.cisco.com/c/dam/en/us/td/docs/switches/lan/csbss/sf20x_sg20x/administration_guide/78-21139.pdf
Administration > Discovery - LLDP > LLDP Local Information
LLDP Port Status Table
LLDP Local Information Details
802.3 Details
Let me know if this helps.
Aniket

Cisco SGE2010P 48-port Gigabit Switch - Setup & Configure via Web UI?

Hello,
I'm looking to purchase a Cisco SGE2010P 48-port Gigabit Switch (POE) for a 100% Macintosh environment. Because of this, none of the machines will be able to access the switch (including initial, out of the box setup) via the console port. So, I'm wondering if anyone can confirm if this switch is configurable, out of the box, via the Web UI (which would allow a Macintosh system to set it up no problem via a web browser)? I have asked all my suppliers and talked to a Cisco Product Specialist via web chat and also tried via phone, and no one can confirm if this is possible for sure.
The reason I ask is that I was also looking at a Nortel switch and even thought it had a Web UI for management, out of the box it had to be initially set up (ie. configuring the devices IP) via the console port first, and once that was done, only then could you access the Web UI.
I'm hoping this isn't the case with the Cisco switch and that it in fact is out of the box with a default IP so it can be accessed via the Web UI (without the need to go in via the console port).
Could anyone answer this question for me!?
If it helps, this is the website for the switch I'm considering...
http://www.cisco.com/en/US/products/ps9985/index.html
Regards,
Kristin.

SGE2000 and SGE2000P must have a DHCP server to get an IP-address. You “just” have to figure out the address they have been given.SGE2010 and SGE2010P has a default IP (192.168.1.254 – 255.255.255.0)All 4 devises has a web interface. I don’t see why it shut not work with a Mac browser. The primarily reason for buying SGE switches is their ability to stack. But 24 ports (SGE2000/P) and 48 ports (SGE2010/P) switches are not able to stack with each other. They have had several years to fix the problem so it is not likely it will ever bee fixit. If you stick to eater 24 ports ore 48 ports it will work.

Management port in Cisco Switches (are they really physical port)

Hi all,
I have been taught to console into my cisco switch for configurations through console cable + putty (serial terminal).
Then I have been taught to configure a management ip and gateway on the cisco switch.
Switch# conf t
Switch(config)# interface vlan 1
Switch(config-if)# ip address 192.168.1.11 255.255.255.0
Switch(config-if)# no shut
Switch(config-if)# exit
Switch(config)# ip default-gateway 192.168.1.1
All the while, i thought this is the way to remote in to the switch via putty/telnet through the network to configure the switch, until i saw the picture below (cisco catalyst 2960)
=======================================
There is a physical port call ethernet management port. What is it ? What is the difference between this port and the earlier example of setting a management ip in VLAN 1 ?
If i set an IP on this particular interface and I ssh in, will i see the same screen/display/console from the earlier example in which i set a management ip in VLAN1 and I ssh in ?
Regards,
Noob

Hi Leo,
Sorry if you find it hard to explain to me.
I have understood to think of the ethernet management port as a separate entity from the original switch.
Maybe with the help of the diagram below, can you let me know if i have understood correctly ?
*please assume connected port is a management port separated from the normal switch ports
q1) does the ethernet management port need to be connected to another switch ?
I have thought of it as a device on the network and it is mentioned by you previously that it will be connected to a switch
"he traffic goes up the cable connected to the Management port and up a switch. Now that switch holds all the information because it is a switch. "
q2) In the current setup then, terminal B will be able to access the management port - am i right ?
q3) you mentioned that the management port is not able to set any gateway, (which is the router fe0/5 - 192.168.0.3 in my illustration), in that case do you mean that terminal A will not be able to access the management port remotely and it can only be accessible locally ?
Please do correct me if my understanding is wrong.
Thank you so much for your advices.
Regards,
Noob

Linksys Cisco switch 24 ports

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