Cisco Catalyst Center
This community is for technical, feature, configuration and deployment questions. For production dep...
3029 PostsActivity in Networking
How to configure STP for an RSPAN aggregator switch to analyzer?
Hi,I'm using an old Cisco 3750x as an aggregator switch for a number of other switches which are configured with an RSPAN vlan. The Cisco 3750x then has the uplink port connected to a passive network monitoring sensor which ingests all the SPAN traf...
RSPAN on same switch
GreetingsI have a Cisco 9300X running IOS 17.09 and I have a case where I would like to capture RSPAN traffic from another switch but also capture traffic from the local switch. The capturing device only has one monitoring interface, otherwise this w...
Configuration Guide: AppDynamics for Test Recommendations
IntroductionWhat are Tests in ThousandEyes?What is AppDynamics?Configuration GuidePrerequisites & AssumptionsAppDynamics ConfigurationFind your AppDynamics URL InstanceThousandEyes ConfigurationValidationResources Introduction “There is no favorab...
Cisco IE 9320 stack testing
We have a stack of 3 IE 9320 switches connected. We tested by powering off each switch and how the end device behaves. While powering off, we see one ping drop and while switch is powered back and then when it gets added to the stack we see intermitt...
Catalyst SDWAN Application Aware Routing
hello I have a question relating to Application Aware Routing (AAR) on the Cisco Catalyst SDWANAs I understand the setup -- > BFD monitors & calculates the SLA if a site is configured with two interfaces both with DIA -- can the software monitor & ca...
Cisco SD-Access design when all gateways are external
Hi all, We are currently planning to deploy one catalyst center appliance in our office. However, the current gateways for all subnets are on firewall. So, we proposed one of the below solutions: First, keep the network as it is, we will only discove...
IOS XE and XR redistribution loop detection
as we know, when doing mutual redistribution with two or more routers, there will be loop if we don't use tag on one redistributing router and block the route learn back on the other. however, even without configuring tagging and blocking, IOS XE and...
Resolved! IOS XR multihop BFD support for static route
in IOS XR, when you configure BFD in static route, there is multihop option as in 'bfd fast-detect multihop <source address>' however you can't configure destination as we can in IOS XE. the router uses the directly connected neighbor interface addre...
RPF Steering, Multiple VRFs with Multicast PIM-Sparse
I'm having a very strange issue with a 3850 right now. We use 3850's as building routers on campus. Each building gets its own 3850 and then there is a variety of 4500, 2960X and 9300 switches deployed for layer 2. On each 3850 we have the traffic se...
Flush rack mounting brackets for Catalyst 9300
The rack mounting brackets for C9300 switches (and all others as far as I know) sit slightly back and make the switch protrude about 2cm. I've got some cabinets where this is going to be an issue for the fibre cabling when the cabinet door is closed....
Resolved! IP SLA Responder - Are all ports open?
Playing with IP SLA, I configured a udp probe with a random port 65051 on the other side I only configured "ip sla responder" and it started working... I changed the port a few times (63500, 64111, etc) and it continues to work, which raises a lot of...
Any Recommendation for a Design Book?
Hello Everyone, I am new here, my name is Joshua Mendieta, i got my CCNA R&S at the start of this year, and now i am studying for my CCNA Security, and meanwhile i am trying to do some freelancer jobs in networking to get some money. The Reason for t...
Cannot break to ROMmon because the no service password-recovery command has been configured
Core IssueIf the no service password-recovery command has been configured on a router, the break sequence will no longer work in order to get to ROM Monitor (ROMmon) mode to perform a password recovery. If this feature is enabled, the following mess...
Trouble adding ISE server in Network Settings
Hello all,I'm doing the CCIE Practice Labs so I can get practice with SDA. One of the first things I'm doing in SDA is the integration of DNAC with ISE (in the lab, the DNAC is version 2.3.5). The integration works fine, and during the integration I ...
Stretch L2VN across fabric sites
HiI know I can anchor a L3 VN using MSRB in SD Access but if I have a simple L2VN that I hand off via a L2 Border in one site can I stretch that across to another fabric site and use it there? In principle I would think it is achievable. My edges i...
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