Switching

I've been tasked with SW upgrades on our 3850 stack to resolve some logging issues. the current version is 03.07.05E. I see a release titled 03.06.10E with a more recent release date, but the version numbering has me confused. I know 03.07.05E is an ...

currently i have a branch with over 15 racks and each one is using a small 8 port hub which connects to my main switches. As replacing them with switches would be expensive I was wondering if it is ok to have hubs in the network environment for small...

Cisco Nexus 9396 configuration with HPE Virtual Connect FlexFabric-20/40 F8 Module for c-Class BladeSystem (module 1 & module 2) interconnected.VC 20/40 port Q1 (40G) connected with Nexus 9369, Ethernet 2/1 and Ethernet 2/2 (40G expansion module).VC ...

Hi all,  I have recently bought and configured 4x CBS350 switches, in 2 stacks. Each stack has 2 switches. Switch configuration is very basic, with 5 VLANs, 1 management IP, and 2 LAGs. While I can access the switch over console, HTTP, and SSH, I can...

This is a very weird issue and I'd like to see what you all think about it. I'm attempting to connect a 2960x 24p switch to a pair of 3750G 12p SFP switches running HSRP.  The 2960 has a fiber link (GLC-LH-SMD modules in all devices) between each sw...

Hi,Can I implement Anti-Spoofing detecting and Network Storm Protection features for IE-3300 L2 Switch?  Thanks 

One of our Cisco 9300L switches keeps showing this error:%PM-4-ERR_DISABLE: loopback error detected on Gi2/0/5, putting Gi2/0/5 in err-disable state%PLATFORM_PM-3-LOOP_BACK_DETECTED: Loop-back detected on GigabitEthernet2/0/5This port is our WAN Inte...

Looks like My Catalyst WS-C3850-48P has memory utilization issue. Its running on 16.3.8 version. Can anyone suggest if it's need an upgrade & if yes, to which version?Cisco IOS Software [Denali], Catalyst L3 Switch Software (CAT3K_CAA-UNIVERSALK9-M),...

Hello,As we know VTP pruning is for to eliminate unneccesary vlan. If we have topology likesw1-sw2-sw3Sw2 have vlan 100 and vlan 101Sw3 have vlan 200 and vlan201If we enable the vtp prunning, will sw3 get vlan 200 and 201, or because sw2 have no port...

Hello, I am reaching out because I am currently having issues regarding pinging between my routers in my current setup. I have three 1921k9 routers connected from gig0/1 to a 3750 cisco switch. I have configured hostname, default gateway, VLANs, and ...

Hola, mi nombre es Jose Antonio, resido en la Republica Dominicana, soy nuevo en esto de la configuracion de switches y router.Mi problema es el siguiente, tengo un Router Cisco ASR-1004, con las siguientes tarjetas: SPA-1X10GE, SPA-8X1GE, SFP-10G-LR...

Hi there,I have the following port on a Cisco Catalyst 2960, configured as follows below.But will need some of the configurations to be changed in to the configuration I entered with in [...]Can you recommend/advised what are the command to change th...

Hello community,Recently I ran into interesting situation in production environment. Core Switch were sending packets with incorrect destination MAC address towards Access switch - it was due to some bug. But my question is not about that bug. The th...