Networking

Collaborate with peers and Cisco on all aspects of your network, including Cisco Digital Network Architecture (DNA), routing, switching, and more.
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Cisco Catalyst Center

This community is for technical, feature, configuration and deployment questions. For production dep...

2139 Posts

NFVIS Solutions

Join peers and Cisco experts to discuss Cisco’s Network Function Virtualization (NFV) products and s...

12 Posts

SD-WAN and Cloud Networking

Join this community to interact with your peers and Cisco about SD-WAN and all things related to sec...

2083 Posts

Switching

Discuss Catalyst brand switches with peers and experts.

105505 Posts

ThousandEyes

Join us for information about our use cases, common troubleshooting, discussions, getting started gu...

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Activity in Networking

Tracking network speed

Hi thereI am assigned to check the issues with this attached network and have managed to remove some hups and redesign the network to what it is now. there were no vlans and it has been configured. the issue is that the internet speed is extremely sl...

Resolved! Not able to go into Rommon

Hello, I have used Cisco 1921, and we forgot its login and password. I am trying to go into rommode for password recovery but am not able to. During router boot-up process I am using special command > Break to force rommode , router shows " Readonly...

Internal batteries

Does the Catalyst 2960-X or 350-P network switches have internal coin cell batteries to retain memory or clock settings? If so, what is the part number of this battery. Alternatively do you have a safety compliance document for the battery which allo...

Network Architecture

Hello Everyone,I'm novice to networking. And below is the requirement I'm trying to figure out. Any leads would be greatly appreciated"You are working as an IT architect for a new startup business that grew faster than expected. they expanded to oper...

Ram253 by Level 1
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  • 0 replies
  • 0 Helpful votes

mac flapping

Apr 16 04:14:35.390: %SW_MATM-4-MACFLAP_NOTIF: Host 001b.0907.fe0e in vlan 11 is flapping between port Gi1/1/1 and port Gi1/1/2Apr 16 04:14:35.390: %SW_MATM-4-MACFLAP_NOTIF: Host 001b.0907.fe0e in vlan 11 is flapping between port Gi1/1/1 and port Gi1...

Cisco 2921 for home use

I'm having problems setting up my home network using Cisco2921 for the first time. It has the basic licenses only. Below is the running config followed by my adapter settings. Any assistance would be greatly appreciated. Thank you.Current configurati...

when was Rapid PVST+ introduced

I googled this and no answer. What year was it introduced? https://www.ciscopress.com/articles/article.asp?p=2832407&seqNum=5

Garegin88 by Level 1
  • 319 Views
  • 4 replies
  • 0 Helpful votes

SD-WAN OMP Peering

In my environment I have 2 vSmart controllers. (vSmart-1, vSmart-2)In cEdge-1, the OMP peer is established only with vSmart-1. No details about peering with vSmart-2.in cEdge-2. the OMP peer is established with vSmart-1, for vSmart-2, the status is i...

RS19 by Level 4
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Upcoming Event: Capture the Flag, get the Badge!

You asked, we heard you! Introducing the ThousandEyes Support Community Capture the Flag event from April 23rd at 8 AM PST to April 29th at 5 PM PST. This month the ThousandEyes Community is offering two Capture the Flag missions in a single upcoming...

HSRP Not Establishing but L2 Connectivity Verified

Replacing some old cisco routers with 8500's running 17.9.4a.  They are connected to a Nexus 7K, on the same card.  The routers can ping one another and establish BGP but they will not establish the HSRP adjacently across the 7K.  If the 8500's are c...

Unable to ping between two tunnel points

Hello, I built using the packet tracer a simple topology of three routers with ospf routing. I created a tunnel between the two routers that are not physically connected to each other, but I can't ping between one end and the other. I managed to ping...

Script for Switches Cisco

Hello Community,I am looking a script for switches cisco for block interfaces with APs connected , the reason is because we receive daily port changes and sometimes the engineers change the vlan Wi-Fi by another and the Wi-Fi environment is affected ...

L2VPN Over GRE

Hi I'm trying to extended a L2 segment using MPLS L2vpn over GRE. I am able to establish the tunnel and get ospf and mpls adjacency also the xconnect between the peer is up but my 2 test pc cant reach each other. This is my PE3 config.interface Gigab...

optional variables in sdwan cli template

Is it possible to mark a variable as optional in sd-wan cli template?Can we use variables in a local data policy? I want to apply an ACL to internet facing interface that only permits traffic to the internet facing IP only. Policy will be applied to ...

ISP VLAN Tagging

If my ISP is logically routing between a routed interface on their end with an IP in the same subnet as my end's Layer 3 router SVI interface for VLAN 10, but the ckt terminates on a layer 2 switched interface on my end using vlan 10, does my ISP nee...

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