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
We have Nexus 3548s acting as PTP Boundary Clocks. We're trying to add Dante audio devices to the network but appears PTP version 1 packets are not being passed to devices. Is it possible to forward PTPv1 packets, like for example on a 9K Nexus? W...
Resolved! Openflow on 9200L
Hello,I want to undertake a project that involves setting up an SDN network via OpenFlow using Cisco Catalyst 9200L switches. I saw on forums three years ago that OpenFlow support starts from the 9300 series. Is this still the case? Are there any wor...
Hi there, I have been working on this network for days and I can't seem to get it to work as a whole. At first each Lan was working, then just the WAN. Packets seem to go everywhere but get stuck at the switch? What have a I done wrong?Please see att...
Hi all, hope everyone is doing well !!!I just bought a pair of N9504 with dual SUP to replace my N7K. I am working on bringing the N9504s online as we speak and just to find out that non-disruptive ISSU is not supported on N9K modular chassis. I am s...
Hi,I have 2 nexus 9K in vpc. I want to nat traffic originating from vlan 192.168.254.0/24 toward 192.168.5.22 and 192.168.5.23192.168.5.22 and 192.168.5.23 IP's are behind 192.168.8.193 Any traffic going towards 192.168.5.22 and 192.168.5.23 IP's s...
Hi, For the past 3 months I have been experiencing a very strange issue on my Cisco catalyst 9300 and 3850 Switches. I logged in on many of the cisco switches and saw that a huge number of usernames and passwords are created ( I believe ) automatical...
hi guys , i've made sure that my DHCP has been set on the interface connected. DHCP is working for my Access point and PCs, but keep getting errors for laptop connected wirelessly. any advice? packet tracer has been attached if there's any referen...
Resolved! C9200L uplink
Hi, I have a customer that requested a switch that supports both 1Gb / 10Gb SFP's uplinks, Does the C9200L-24P-4X-A uplinks support both 1Gb and 10Gb SFP's? Thanks
Hello,I'm currently working on a Packet Tracer activity that involves configuring Access Control Lists (ACLs), and I find myself in need of some assistance. I have successfully configured ACLs 2 through 4, but I am encountering challenges with ACL 1,...
Hello i have implemented a Subnet of class C using RIP but packets are not being sent can someone please help???
Hello, I am studying CCNA and have a question about MAC address table.Let say I have a switch which have f0/3 connected with a PC with MAC address 0000.0000.0011.Now i remove the cable of f0/3 and connect to f0/4.By default they should be some protoc...
Hey all,I am experiencing some issues with Port-Based Address Allocation responding with a NAK to lease time renewals from nodes. I was able to reproduce the problem on at least the following system/software combinations:C9500-48Y4C (version 17.3.2a)...
Hello team,I have issues with new deployment of stackwise virtual on C950048Y4C. We are using Hu1/0/49 and Hu1/0/51 for stackwise virtual.Here is the configuration of the VSS:Master:On Switch 1:Device>enableSwitch#switch priority 15Device#configure t...
I'm trying to do something simple and I keep logging myself out. Here are the commands I enter in this order.>username cisco privilege 15 secret 5 cisco>aaa new-model>aaa authentication login default local>aaa authorization exec default local if-auth...
One of my customers has the following situation: In the connections between the Switch and the ASA firewall, all VLANs are not connected to the firewall with a single trunk port, separate access VLAN ports are configured for each VLAN and each port i...
