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
Resolved! mac address table per vlan
hi every body!Is there one mac address table for each vlan on a switch?thanks a lot and have a nice day!
Hi Everyone, I have an issue with ERSPAN on my Catalyst 9300-24T switches. IOS XE version is 16.12.4. They are directly interconnected on 10.10.10.4/30 subnet. The source has ip address 10.10.10.5 and destination has ip address 10.10.10.6. This is co...
HiC9500 and C9300 running 17.12.5I have a working port-channel between the 2 switches with 1 active interface.When i add and enable a second interface the channel goes down and shortly after up, but then i have extremly high packet loss and loose man...
Resolved! Extended access list on C9300
Hello everyone:I am trying to configure an extended access list on a C9300 (IOS XE 17.03.04) to allow traffic between two stations. This is the configuration of the network I'm having problems with:Both stations are in different VLANs and switch C930...
Hello there , By mistake I had formatted booflash as it is in dir Bootflash: result message for slot0 "The device has either been removed or bad device name Bootflash:" There is no Bootflash image in slot0, so I looked for a way to upload my image t...
Does anyone know if a switch with 10G ports only can run the SFP-10/25G-CSR-S, even at 10G?TMG matrix doesn't show any any compatible 10G-only switches but just wondering if the 10G switch can run the SFP at 10G, that's good enough for now before we ...
We currently have two physically separate networks, one which handles our regular in-house network vlans, and a completely physically separate security camera network. We've taken steps to combine the camera network into our main core network. Some...
Hello everyone,I’m trying to stack two Catalyst 9300 switches but can’t get the stack ports to come up. Hoping someone can help.SetupSwitch A: C9300X-48HX — IOS-XE 17.12.05 (active)Switch B: C9300-48UXM — IOS-XE 17.12.05 (standby)Cabling (Stack + Pow...
Hi everyone, can anyone help me with this LAB? I cannot deployed DHCP from Server Zone to VLAN 10-20.
Hi Cisco Team,i expereince the high cpu utilization in cisco switch 3750..please guideCPU utilization is about 35%..please let me know its normal or high
I noticed Catalyst 3650/3850 IOS-XE 16.12.14 appeared on CCO a few days ago, however there are no release notes. I've searched on CCO and externally but I can't find anything. Anyone know what's new or what's fixed?
So I have a network where I need to do inter-Vlan routing. I wanted to ping a PC from a switch and I understand why you would need to configure a default gateway on the switch so that the ping can be sent correctly but what I have trouble understandi...
We are attempting to use your range of IE-3300 switches to satisfy a specification requirement for an upcoming project. Are there any CAD models available?I'm looking for DWG or STEP files available that depict the IE-3300 series so that we can add t...
Does GLC-SX-MMD support SFP MSA?
Resolved! STP - TCNs
Hello,I am wondering whether a TCN is also sent if a forwarding will be manually admin shut.To my understanding a TCN is sent when a STP engaged port is changing to discarding, blocking or listening state.Following situation: in this case port will b...
