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Hello, I have two stacked 3750 switches, each with a 10G module. The stack keeps generating the following log:"%PLATFORM_SM10G-6-LINK_UP: The FRULink 10G Service Module (C3KX-SM-10G) communication has been established."I’m not sure which switch the i...

OK, so I realized the switches in our stack are numbered wrong, with 1 and 2 backwards, and 3 being okay.I wanted to do a "switch 1 renumber 2 command", and got a warning saying "Changing the switch number may result in a configuration change for tha...

Hi,I have an Arista DCS-7050TX-64 and Cisco Switch 3850 24X UPOE and a simple trunk configuration does not work.Port light is steady green and recognizes when port is shutdown so not Layer 1 problem, but more than that, there's nothing happening.When...

Hello Experts, I have noticed that interface VLAN doesn't come up till the time I configure one of the switch port as access with VLAN = i/f VLAN & connect one end device like PC through it. I have two switched connected as below: switch#1 --------- ...

Hi fast-convergence am i right we use this command on vpc when link between peers flapped, i searched a few links especially on cisco website.and also found this.Fast Convergence is used when the peer-link flaps. When the peer-link flaps, the seconda...

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Mlex1 by Spotlight
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I"m having an issue and Cisco has "looked" at this issue and they think it might be a bug in the IOS but I'm not so sure.  I have a redundant Core and Distro layer using Nexus 9332's and 93180's respectfully.   I have set up HSRP on the Core's with a...

Kevin15 by Level 1
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Hi, hoping someone can help with this irritating problem I've got! My current office has 5 x Cisco 3650 switches stacked together (via stacking module) that services what I will call Office-A. I need to connect these via OM4 MM fiber cable to a new f...

Resolved! Compatible SFPs

Hi, we've got a Cisco 3650 and 2960 (both with 24 ports + 4 sfp) interconnected via an ethernet cable (all ports are 1Gb) because no one had purchased the required Gbic modules. Now I've been given a Startech SFP+ 10 Gb Twinax Cable which does not se...

spj2019 by Level 1
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  • 9 replies
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Hello ,  am using nexus 3k with VPC pair. I need your recommendations , if I configure vpc 100 for server with trunk interfaces. what should be the spanning-tree port type will be used if i have following cases. the sample configuration is mentioned ...

uni1389 by Level 1
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I am attempting to join two identical Cisco 2960X switches into a stack at a remote branch office.  I made sure both were running the same IOS version - 15.2(2)E5.  However when the remote technician connected the switches, the logs showed a version ...

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