Networking

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Cisco Catalyst Center

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

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NFVIS Solutions

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

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SD-WAN and Cloud Networking

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

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Switching

Discuss Catalyst brand switches with peers and experts.

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ThousandEyes

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

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Activity in Networking

BGP-LS ; how is BGP-LS data processed in BGP RIBS

Hello, I am working on collecting BGP-LS SAFI using BMP towards Cisco's opensource project Jalapeno. I have captured packets between RR and Jalapeno on each use case to observer where we see BGP-LS and where we DON'T see BGP-LS packets. few use cases...

Cisco 2960X and 9200L POE support for Paxton

Hi,We currently have a mix of Cisco switches from 2960s, 2960X and now the 9200L.  However we are having issues with our Paxton POE door controllers. The 2960s work with all of our Paxton ControllersThe 2960X up to hardware version 4 work with the Pa...

redundancy in core layer

hi guys . i have a network with below topology. In the core layer, I want to have redundancy, which means that if the main core switch of my network has a problem, the backup switch will automatically enter the circuit. What method is there? 

redundancy in core layer.png
chpmotry by Level 1
  • 165 Views
  • 13 replies
  • 0 Helpful votes

change Master Switch To slave in cisco Switch

Hello everyone, I have two cisco 3750 switches that are on stack with the below config Switch# Role Mac Address Priority State--------------------------------------------------------*3 Master 0017.5ae7.d500 1 Ready4 Member c062.6b8c.f200 1 Readyi wou...

joe5084 by Level 1
  • 71 Views
  • 2 replies
  • 0 Helpful votes

Resolved! Switch not reliably forwarding DHCP requests

Hi, hopefully this is the right place for this question. We have a switch stack of three 9300 switches running IOS XE that handle networking for the office area.  The office machines sit on a single vlan.  DHCP is provided by a Linux DHCP server sitt...

RyanMcC by Level 1
  • 9022 Views
  • 7 replies
  • 0 Helpful votes

Lost ARP Announcement Packet for Meraki MR30H Access Point

Hi,I have a setup with following  components.* Cisco - Meraki MSS120-8FP Gigabit Ethernet Switch* Cisco - Meraki MR30H Access Point (POE)* GRMS Device with LwIp Stack* 2 PC with Windows 10.* My PC (Windows) to pingWhen I try to ping the GRMS device t...

yldrmali by Level 1
  • 81 Views
  • 2 replies
  • 0 Helpful votes

Web Gui issues with C1121-4P router

I set up a C1121-4P router for a friend with int gig0/0/0 facing the ISP with ip address dhcp. int gig0/0/1 192.168.1.1/24. See attached sh run. Vanilla Configuration not much security or complexity. After a power reload the GUI "https://192.168.1.1/...

ASR1001-X Thruput only 750 meg Interfaces10G both sides -Circuit 10G

We have a Cisco ASR1001-X and it can only pass 750 megs of traffic thru it on a 10 Gig circuit. I looked at licensing levels and they seem correct. Anyone have any ideas of what I can look at? Both Lan and Wan interfaces are 10 gig and Wan is using S...

jroy777 by Level 1
  • 120 Views
  • 5 replies
  • 0 Helpful votes

WebUi access for catalyst 3650

I am trying to access the WEB UI but it is giving me error:ERR_SSL_VERSION_OR_CIPHER_MISMATCHThe client and server don't support a common SSL protocol version or cipher suite.I am using client with Windows 2019 server OS..  Chrome Version 123.0.6312....

cbgrape by Level 1
  • 338 Views
  • 7 replies
  • 0 Helpful votes

Configuring NAT overload with vrf lite on a CAT9K

Good day;Need help with how I can configure NAT overload with an existing vrf on a CAT9K_IOSXE V16.12.  This is what I am struggling with, I currently have a vrf called AWSDX-S3.  Now what I am trying to do is I have added a L2 SW and ran trunk ports...

gurowar by Level 1
  • 219 Views
  • 9 replies
  • 0 Helpful votes

how to test a new switch without adverse affect

We brought a new core switch (cat 9500) with the intention of shifting to it , however i would like to test some uplink to make sure the link will go up on the shifting day , however I'm worried if i connect the new switch it would mess the vtp or th...

baselzind by Level 6
  • 105 Views
  • 5 replies
  • 0 Helpful votes
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