Switching

First off i want to say not a networking guy so sorry ahead of time.  Here is the situation i am facing.   Switch a  has a fiber line and an Ethernet line running to switch B.  We want to have both lines up and running in the case of the fiber line g...

Hi Community,   I have a situation where I need two hosts connected to a 2960G switch to send wire-speed broadcast traffic (all F's), between the two hosts.  The two hosts are the only devices on this isolated VLAN and there is no layer 3 interface f...

Hey all   I am having a problem with a 3850-24XS. All traffic stops for 3 pings then returns to normal. Running a constant ping from multiple endpoints on trunk connected switches to multiple ports reveals 3 ping timeouts every 5 - 45 minutes resulti...

Hi All   I have SFP LR type in core(X2-10G-LR) side and access switch side (SFP-10G-LR) but the fiber cable is MM om3.. can work with this case?   Thanks

  Hello,I set up a lab with a switch and a isp routeur connected to it. I can't ping internet from the switch but i can ping the router internal interface (192.168.1.1). set up: SW2960X   -------> ISP routeur ( no access to it, no modification can be...

Hi   Does the 250 Series switches support IP Source Guard feature? I'm looking at the SG250-10P specifically, but I don't see clearly anywhere if the switch has the required feature?

Hi, My English is bad.   I have 3 switches WS-C3850-24T   with sw version   " 03.06.06E0"with license permanet/lifetime of ipbase and lanbase.   I tried use "object-group ACL CLI" but it does not work.   I found this article bug:   https://bst.clouda...

I have C2960X with IOS Version 15.2(2)E6, from the show logging Oct 24 11:54:25.878: %SFF8472-5-THRESHOLD_VIOLATION: Gi1/0/52: Rx power high warning; Operating value:  -2.9 dBm, Threshold value:  -3.0 dBm. what is the advise for this isssue?

Hello experts.   I am trying to connect a Catalyst 3850 to Nexus 9K.   In the main this has been successful, unfortunately whilst the 9K sees the CDP neighbour fine, and can ping the 3850 switch management address I am unable to ping the 3850 from ot...

Hi, currently we have single Layer 3 switch which is also the gateway of all our VLAN's. We're planning to implement a secondary Layer 3 switch with HSRP. My question is can I configure HSRP with a dummy routed port or dummy SVI and configure the HSR...

I just added a Cisco 3850 to an existing Cisco 3850, same model#/SW version: Switch Ports Model              SW Version        SW Image              Mode------ ----- -----              ----------        ----------            ----*    1 56    WS-C3850...

Have a Cisco IE-3000-8TC switch with module IEM-3000-4SM but any FastEthernet ports doesn't works just the two GigabitEthernet ports works, please any help