Hello, Cisco Community!I’m really happy to share that I’ll be hosting the Cisco Community Lab Series, a brand-new hands-on learning journey designed to help you build practical networking skills step by step.Every Thursday at 8 PM EST, I’ll post a ne...
Forum Posts
Hi, we have some catalyst 9300-48U -A switches and current os version Fuji -16.9.4, I checked cisco software download site, and the latest MD version is Amsterdam 17.3.6? can we directly upgrade from Fuji-16.9.4 to Amsterdam 17.3.6? or upgrade to lat...
Hello all, In the near future I will get the task to renew the network hardware in the data center. So far we have two N5k with four N2k each as fabric extender in use. The two N5k are configured as vPc peers. Virtual machines and servers are connect...
Hello, We are currently trying to install a pair of DELL S4128F-ON configured as VLT peers and trying to connect them to the core 4500x VSS pair to act as access switches for a proxmox infra (to be able to create linux bonded interfaces) . I configu...
Resolved! Cisco 9400 Switch
Dears, Can we use 9404 switch as a core switch ? BR
According to our lab, the upgrade of IOS can be completed in about 10 minutes, but in actual operation in the real environment, it still fails to boot after 30 minutesWe found that in the real environment, there is a problem of mac-flapping. Ask the ...
Resolved! Stay away from VTP?
I am new to VLANs and trunks. I had a conversation with an "expert" who told me that "no one uses VTP" and that if a switch gets replaced, that "it could take the whole network down". That seems absurd to me. Seems like if I had to replace a switch -...
Resolved! Cisco 9300 - Cmand Errors
Hello,I'm trying to boot from usbflash0 (IOS 17.3.5)and flash:packages.conf but having the below errors. %PMAN-3-PROCHOLDDOWN: R0/0: The process cmand has been helddown (rc 134) %PMAN-0-PROCFAILCRIT: R0/0: pvp: A critical process cmand has failed (rc...
Resolved! How to log packets(frames) on a switch
I want to know if the packets go through the switch. Is it possible to log frames with origin and destination on the switch? I'm not asking, check with wireshark.
Is there a command to check the current utilization of the backplane on a WS-C2960G-48TC-L switch?
Resolved! Length of CAB-C15-CBN?
Hi,can anyone suggest the cable length of CAB-C15-CBN?
Hi all. I am beginner in Cisco. I have a problem. I have switches C9200-48P-E in stack 4. In one switch i have module C9200-NM-4X. It is connected with other switch in stack cisco. But on this module C9200-NM-4X when run command show interface status...
Resolved! RSTP Discarding State BPDUs
Hey! So I'm struggling to understand the concept of Discarding in RSTP. In STP, There are two state , Blocking and Listening. In blocking the ports will only listen to BPDU and in Listening they will also send BPDUs and then a Root Bridge will be ele...
I am working on an assignment for a college course and I am having trouble getting my DHCP settings to work properly. The goal of the assignment is to break up the devices on the Main-Office-Router so that each department is on its own VLAN. I did th...
I have an absolutely maddening issue. I have a Nexus 3064 that has been the switch for my storage and vMotion networks for several years, and it has worked great. I am trying to transition some of the 40G ports to a 3850 so I don't have to run the Ne...
Hi AllI got 2x 2960 switches in a stack. The member switch failedSwitch 1 - Member - switch priority is 1Switch 2 - Master - switch priority is 5I got spare switch, just need to check if the below steps are ok: * Check new switch has same IOS and ...
