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
Write Memory Lock Stuck Due to HTTP CP Process on Catalyst 9300 (IOS-XE 17.12.04)Hello Cisco Community,I am experiencing a severe issue on a Catalyst 9300 (standalone, IOS-XE 17.12.04) where the device becomes unable to save configuration changes.Sym...
Hello,I have a Catalyst 1000 switch. I'm having some dropped packets and I'd like to understand why it's happening and see if i can fix the issue.What causes the "Unknown output interface" dropped backets? I read that disabling the information option...
1. How computers in vlan 10 in sw1 and sw2 communicate , 2. How computers in vlan 10 and vlan 20 communicate
Hi in Nexus nxos 9.3.13 under neighbor config adress family ipv4 unicastset remove private as but on upstream route see Private AS number How solve this ???
I am trying to use the 881WG in a vehicle (patiently waiting for a "hardened" version to do the same) and it appears the wlan-ap service module is hanging - possibly due to vibration, software bug, other?The only way to recover is to reset the servic...
Resolved! DHCP Snooping correct configuraiton
Hello everyone,I am working on setting up DHCP snooping with some Cisco Catalyst 1000 series switches. My main goal is to get this configured correctly so I can also implement Dynamic ARP Inspection and IP Source Guard.Below is a diagram of my networ...
Hi Dears I have 3 Switchs Terminate 3 VLANs on switche number 1 Now i want Cross Vlans Number 98 and 200 from P1 and Vlan Number 325 forward from port 2 when do that see packet lost used spaning-tree cost not working for meIf allow all VLAN on port 1...
Hi i used this in ACL deny icmp any any echo log drop icmp but donnot send to log server any ip addresses Or show logging Donnot have any ip addresses?How solve this
Hello!I have two catalyst 2960 24TT-L switches, and I cannot get any output from them via the serial cable. I have tried using both PuTTY and TeraTerm, and made sure the serial cable is not defective. I have also tried switching BAUD rates, but that ...
Hello,I installed the packet trace in my computer, and when i open de application with SkillForAll, i receive a message with a error 8001, i put a firewall rule in my computer, and the error persists, can someone help me? Thanks,Ronivan
Resolved! 3850 will not use startup-config
Hello,I just recently obtained a 3850 switch for my lab but for some reason it will not use the startup-config. I have followed another post on this forum and made sure that:SWITCH_IGNORE_STARUP_CFG=0The configuration register is set to 0x102I even f...
Hi All Working through some issues with the Networks team and would appreciate any help.In a lab we have just installed a C9500-48Y 4C catalyst 9500 @ 17.12.05.Running with 10Gb FC SFPs and 10GBE copper SFPs.These SFPs are non Cisco branded and the c...
I happened to find the 25G SFPs ordered for C9500-48Y4C are model SFP-25G-SLI search this model in Cisco Optics-to-Device Compatibility Matrix ,And I cannot find C9500-48Y4C (infact any Catalyst 9500 series) listed under this model.Considering the S...
Resolved! Saf-D Grid Power Cord for 9200CX Switch
We purchased three Catalyst 9200CX-8P-2XGH switches that have Saf-D Grid power connectors built into the power supply. The switches did not come with power cords. I want to be sure to purchase the correct cords that will plug into a standard US 110/1...
I was just curious if it was normal to see a SCP/SFTP transfer speeds around 2.6MB/s on Cisco Nexus C9300 series switches. Using use-kstack didn't seem to make a difference. I figured this was extremely slow seeing they have a 100Gbit link to the ...
