Cisco Catalyst Center
This community is for technical, feature, configuration and deployment questions. For production dep...
3010 PostsActivity in Networking
Interconnection between 2 data centers?
I have 2 pairs of Nexus 9ks and two fiber links between 2 data centers. As of now, I'm doing layer 3 (OSPF) between these 2 data centers for interconnections. I don't want to go to the ACI route; I'd like a simple VXLAN solution for the 2 interconnec...
Week 8: Collapsed Core - Lab
This week, we’re exploring the Collapsed Core design! A simple, efficient foundation for real-world networks. Perfect for those just starting their networking journey!Inside:Lab topologyTasks to completeThis weekend, I’ll post a full step-by-step vid...
Voice+Data VLAN configuration
“There is a Catalyst 1300 Series switch. Voice VLAN is 211 and Data VLAN is 200.On port Gi1/0/10, there is ‘switchport mode access’ and ‘switchport access vlan’, but there is no ‘switchport voice vlan’ command.This port is connected to a Cisco IP ph...
Error when pinging from one PC to another
I have this assignment where I need to make this work. I am new, and I've spent 5 days without understanding what I'm doing wrong and why it doesn't work. The topology must not be altered. I must use OSPF and change the addresses shown in the picture...
Resolved! Convert ISR1100-4G from Viptela vEdge OS (20.9.8) to IOS XE (17.9.8)
Hi All, Got 5 units of ISR1100-4GLTE running on Viptela vEdge OS (20.9.8) and wanted to convert to IOS XE (17.09.08), tried to install IOS XE using USB via CLI as shown in exhibit 1 and 2 but getting error "This does not look like a tar archive" and ...
Issue with WRT300N Routing to a wired router.
I have a project here for a simple network in Cisco Packet Tracer. All connections respond when pinged, but the laptop connected wirelessly with the WRT300N router cannot be pinged from outside the network. The laptop itself can ping any other device...
Intermediate Port Shutoff
My inside trunked router port randomly shuts, with no indication of why in the logs. I had debug STP. What's another debug I can enable to try and get an idea why?Router Log Dec 3 2025 01:26:37 UTC: %TRACK-6-STATE: 22 interface Gi0/0/1.2 ip routing U...
Advice on selecting SFP Modules
So, I am dealing with PLC one one side...10/100mbps port. Via a single mode Fibre cable it is extended to the switch cabinet. I am suppose to select the Switch & SFP. Can someone with experience validate the selection that I derived as : Cisco GLC-FE...
Need install guide C1117 router
I am trying to install c1117 router and soda on it ,I need help to install
Resolved! source-interface vlan ICMP
Hello. I have two questions about ICMP behavior and Fregmansion behavior. All system jumbo MTU / all interfaces / SVI are set to MTU 9216. 1. Packets are generated and processed by the ASIC (data plane) when pinged without a source When pinged to the...
SDWAN VRF leaking
helloI have two VRF defined that I need to leak routes between the question I have is - can I leak individual host IP Addresses if I do not want to leak the full subnet ? VRF12310.123.123.0 /24VRF12410.124.124.0 /24
Cisco Catalyst Onboarding - adding IP addressing
Hi,After Day 0 onboarding my switches, the config output displays no IP, Mask or Gateway info only ip dhcp client client-id ascii under the SVI.Please can someone provide a solution to remedy this?Would a simple variable Day N rectify and if possible...
Resolved! BPDU - disabling
Hi, first time posting.We have a Catalyst C1300-24T-4G switch installed at our customer's location but their own switch blocked access to the C1300 because it was sending BPDU packets. We want the C1300 to work only as a layer 2 switch and no routing...
nexus 9k problem on gns3 and eve
Dear community memebers,I need to test a scenario containing cisco nexus 9300 switches on a virtual lab. I tried to configure vpc on my switches both in eve and gns3. But I have a problem. I configured my switches, and the vpc is formed fine and is u...
Aggregate RoutesBy nxos
Hi if add to uplink switchrouter bgp 65000address-family ipv4 unicastaddreggate address 192.168.0.0/24On all uplink Must be aggregate routes subnet 192.168.0.0/24 and onlyOne route announce to uplink 192.168.0.0./24Announce to uplink all routes inclu...
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