Search Unsupported GBIC (SFP) in sub-module of Catalyst 3850 Switch – Mitigation Techniques1 1 1 1 1 Many companies are seeking for Cisco SFP alternatives to help cut down the costs on these expensive modules.A frequent customer problem with Cisco's new line of Catalyst switches is that they do not support 3rd party (non-Cisco) SFPs - or at least they do not seem to... If you've just replaced your network switches and tried using any 3rd party SFPs to connect your network backbone, you'll quickly stumble across an error similar to the following: Congratulations!The Catalyst switch has just disabled the GBIC port!This happens because Cisco Catalyst switches are configured by default not to work with non-Cisco SFPs.When a SFP is inserted into a switch's GBIC port, the switch immediately reads a number of values from the SFP and if it doesn't like what it sees, it throws the above error message and disables the port.All SFP modules contain a number of recorded values in their EEPROM and include: Vendor Name Vendor ID Serial Number Security Code CRC How To Force Your Cisco Switch to Use 3rd Party SFPs Despite the error displayed, which leaves no hope for a solution, keep smiling as you're about to be given one.

There are two undocumented commands which can be used to force the Cisco Catalyst switch to enable the GBIC port and use the 3rd party SFP: service unsupported-transceiverno errdisable detect cause gbic-invalid When entering the service unsupported-transceiver command, the switch will automatically throw a warning message as a last hope to prevent the usage of a 3rd party SFP.vaporizer finanzierungThe no errdisable detect cause gbic-invalid command will help ensure the GBIC port is not disabled when inserting an invalid GIBC.zitronenmelisse vaporizerSince the service unsupported-transceiver  is undocumented, if you try searching for the command with the usual method (?), you won't find it: service ?service The same applies for the no errdisable detect cause gbic-invalid command.lomme vaporizer

We tried both service unsupported-transceiver & no errdisable detect cause gbic-invalid commands on 2960G, 3560G, 3750G, 4507R and 4507R-E Catalyst switches and all accepted the commands without a problem.e cigarette kelana jayaIn fact if the Catalyst switch is running IOS 12.2(25)SE and above, the undocumented commands are available.e cigarette seahamShould 3rd Party SFPs Be Used?wulf vape classic reviewThere are mixed feelings about this.We certainly do not recommend using non-Cisco SFP's in production environments, however in a lab environment, its most probably a cheap way out.When using 3rd party GBICs, one must keep in mind that Cisco TAC will not provide any support for problems related to the SFPs as they are totally unsupported.

Here is a small portion from the Cisco Catalyst 3750G Q&A that refers to the usage of 3rd party SFP modules on the switch: Q.Do the Cisco Catalyst 3750 Series Switches interoperate with SFPs from other vendors?A. Back to Cisco Switches SectionService Unsupported Transceiver, is this still needed?I have this problem too.0 votes ActionsThis Discussion 0 Votes Follow Abuse PDF Related Content Trending Topics - LANCisco gre tunnelCisco vlan issuesCisco usb console driverspanning-tree extend system-idCisco no ip redirectssrr-queue bandwidth shareServer Fault Sign up or log in to customize your list._ Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top up vote 3 down vote favorite 2 In my new cisco switch version, kickstart: version 5.2(1)N1(7) system: version 5.2(1)N1(7) In this latest IOS , it doesnt have service command.

Could any one help , the equivalent command for "service unsupported-transceiver" Thanks, cisco cisco-catalyst cisco-nexus up vote 1 down vote Unfortunately the new switches do not support these commands for shady SFP/SFP+'s.It has always been a unofficial command anyway.If the command is not there, the only thing you can do is to tweak the GBIC, but that's a whole different story.Did you find this question interesting?Try our newsletter Sign up for our newsletter and get our top new questions delivered to your inbox ().up vote 0 down vote That version isn't a regular IOS version, but IOS-XR.service unsupported-transceiver isn't available in that release it seems.I've never used it so use it at your own risk, but it looks like this is the command: transceiver permit pid all Your Answer Sign up or log in Sign up using Google Sign up using Email and Password Post as a guest Name Email discard By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for?Browse other questions tagged cisco cisco-catalyst cisco-nexus or ask your own question.Network Engineering Sign up or log in to customize your list._ Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top up vote down vote favorite 2 I recently came across an issue while setting up a stack to replace an older M switch setup.I stacked 3 switches - 2 Cisco 2960's and 1 C2960 PoE using SFP cables to their backplane.My plan was to use the SFP modules on the front end of the switches to uplink straight to the core rather than to a bottom M and a Top M that were uplinked to Core1 and Core2.We purchased non-cisco SFP's (Cisco's are much more expensive) and installed them.What I noticed via Termmon, was that each SFP was going down as soon as it was plugged in.000016: *Feb 28 22:35:32.507 EST: %PHY-4-SFP_NOT_SUPPORTED: The SFP in Gi2/0/50 is not supported (B2-FL1-Stack-2) 000017: *Feb 28 22:35:32.507 EST: %PM-4-ERR_DISABLE: gbic-invalid error detected on Gi2/0/50, putting Gi2/0/50 in err-disable state (B2-FL1-Stack-2) It's outputting that they are not compatible which is confusing considering the SFP is an international standard.