Switching

I’m facing an issue with an LACP EtherChannel between a Cisco Catalyst 2960X and a 3750 switch.I currently have three physical links in the EtherChannel (Port-Channel 22).The first two links bundle and work fine, but when I add the third link, it sho...

Hello, i am having issues with connections on our 4 stack switches C2960X, Windows clients getting errors on startup or on reconnecting to the network and are not receiving a DHCP address of our Windows DHCP server. They are getting an automatic ipad...

We did a cisco IE 9320 code upgrade and it failed. it is in a boot loop and unable to get into rom mon mode. Can TAC help me retreive the logs as to  why it failed

Is it required to enable loopguard on 2960 model switch?Currently it is running on PVST mode. If to enable loopguard should we do it globally or on all access ports indivdually? What is the command for it? What is the difference having this loopguard...

Hi all,I have a scenario where I really need immedaite support. Now we want to send the user generated traffic to a cloud-based syslog server for analytics and reporting . Now sending the user-generated traffic from a Palo Alto or FortiGate is pretty...

Hi, Has anyone else seen the following MAC addresses show up on numerous ports recently: 0034.ba00.4000 0034ba01.4000 0030.3a00.4000 0030.3a01.4000 These have just started to show up on several user ports *same 4 MAC's on all interfaces effected* in ...

username anyuser password 5 ! role network-operator   when I create user in my cisco nexus9396 it shows in run config like that and when 

When configuring the 9400 switch as a core, I notice packet loss in ICMP redirect, broadcast, SW forwarding, and transit traffic due to CPU processes. I investigated whether this model has two types of workloads: software and hardware. I think it can...

Hello, We are going to implement a point to point connection between two devices and I've been told to use /32 addresses at both ends. One is a Cisco 3650 with L3 routing enabled. I'm basically stuck at step one : I'm not able to define a /32 address...

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I'm not sure if I can upgrade with C9500 model C9500-48Y4C upgrade with ISSU that hardware can support  I found this in Cisco ISSU Compatibility Matrix </platform><platform type="C9500-48Y4C" name="Cisco Catalyst 9500 Switch"><mode type="HA-REMOTE" m...

Hi Team,In our environment we are using C9300 and WS-C3850 model but on 18 Oct 2025 my site network was unreachable for 15-18 minutes after that everything was normal.During the network unreachable, WAN (DIA and MPLS) were fine and all switches time ...