Hello,  What is the firmware version on the router? What is the interface and direction that you test? Thank you   ... View more

Hello Abiodun, Happy New 2019 Year! I doubt that the downgrade will resolve the problem with this error, but you can try. What happens if you try to downgrade to 1.2.7.76? Cheers, Mike ... View more

Hello Gustavo, Try to make vlan 20 native to trunk :   Switch(config)# interface gi24 Switch(config-if)# switchport trunk native vlan 20 Hope it helps Cheers, Mike ... View more

Hello Henry, 169.254.0.2 is the second APIPA address APIPA stands for ' Automatic Private IP Addressing'  https://learningnetwork.cisco.com/thread/66533   As for the packet is not enough information. Hope it helps Cheers,  Mike     ... View more

Hello, Happy New 2019 Year! You can try to use trunk mode only or you can try to disable smartport A. Try to remove the general mode on all these ports  switchxxxxxx(config-if)# no switchport general allowed vlan and make them trunk and add vlan 27: switchxxxxxx(config-if)# switchport mode trunk switchxxxxxx(config-if)# switchport trunk allowed vlan add 27 B. try to disable smartport: switchxxxxxx(config)# macro auto disabled   Cheers, Mike ... View more

Hello Jane, What happens if you 'force' the port to join a channel without an LACP operation ? :   switchxxxxxx(config-if)# channel-group X mode on Cheers, Mike ... View more

Hi again, Looks good :) - all fans running and temperature is good ... View more

Hello Henry, What is the output from commands : switchxxxxxx# show system fans switchxxxxxx# show system sensors  Cheers,  Mike ... View more

Hello, Did you reset it to factory defaults and try again? ... View more

Hello, Yes, it should work if the switch sees it - these numbers mean the length of the cable in meters. Cisco SFP-H10GB-CU1M - Twinax cable, passive, 30AWG cable assembly - - 1m Cisco SFP-H10GB-CU1-5M - Twinax cable, passive, 30AWG cable assembly - - 1.5m Cisco SFP-H10GB-CU2M - Twinax cable, passive, 30AWG cable assembly - - 2m Cisco SFP-H10GB-CU2-5M - Twinax cable, passive, 30AWG cable assembly - - 2.5m Cisco SFP-H10GB-CU3M - Twinax cable, passive, 30AWG cable assembly - - 3m Cisco SFP-H10GB-CU4M - Twinax cable, passive, 24AWG or 26AWG cable assembly - - 4m Cisco SFP-H10GB-CU5M - Twinax cable, passive, 24AWG or 26AWG cable assembly - - 5m   As for the Mellanox - generally it should work as it is passive and not so long, but you can ask them, or consult with datasheet just in case. Cheers, Mike ... View more

Hello All, Happy New 2019 Year! First download the CLI guide: https://www.cisco.com/c/dam/en/us/td/docs/switches/lan/csbms/350_/cli_guide/CLI_Tesla_Sx350_2_2_5.pdf   You have 2 options: smartport    (starting on page 1066) or You need to make all the ports with phones and desktop in switchport mode trunk, change native VLAN and add voice VLAN to the trunk (page 1266): switchxxxxxx(config)# interface gi11 switchxxxxxx(config-if)# switchport mode trunk switchxxxxxx(config-if)# switchport trunk native vlan 2 switchxxxxxx(config-if)# switchport trunk allowed vlan add 100 Hope it helps Cheers, Mike   ... View more

Hello Tamas, Happy New 2019 Year! Download the CLI guide for the Sx300 switches:   http://www.cisco.com/c/dam/en/us/td/docs/switches/lan/csbms/sf30x_sg30x/administration_guide/CLI_300.pdf   page 24 - User (Privilege) Levels  Hope it helps. Cheers, Mike ... View more

Hello Matima, Happy New 2019 Year! You are correct - Catalysts use different OIDs. The MIB files for Sx500 switches are here: https://software.cisco.com/download/home/284099570/type/283415684/release/1.4.1?i=!pp   Hope it helps Cheers,  Mike   ... View more