Cisco Catalyst Center
This community is for technical, feature, configuration and deployment questions. For production dep...
2140 PostsActivity in Networking
Trunking an ip addressed inside interface on Firepower 2130
My network endpoints use the IP addressed vlans on my core cisco layer three core switch as their gateway addresses. i.e.- vlan 11 endpoint address 192.168.11.3/24 with gateway 192.168.11.1/24 (vlan ip on core) and vlan 12 endpoint address 192.168.12...
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?
ssh into a switch - no matching key exchange method found
Hello all, I have inherited an infrastructure with several catalyst 9200 switches. A few of them are unreachable when using ssh from a terminal, such as a linux server or Powershell. The error message is this: Unable to negotiate with <IP ADDRESS> po...
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...
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...
What address-family does PE use to store the routes sent by the CE?
Hi all!English is not my first language, so I am sorry in advance if my words confused you. I tried my best.As far as I know, CEs don't have vrf in general, so CEs would use ipv4&ipv6 address family of BGP to form BGP neighbor with PEs and advertise...
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...
Treck TCP/IP stack multiple vulnerabilities. (Ripple20)
We have a nexus 9k switch and the following vulnerability was found please help us to remediate this. Treck TCP/IP stack multiple vulnerabilities. (Ripple20)
Resolved! Switch stopped responding to ping through trunk port
Hey all, I have several switches (Catalyst 9200) IOS version 17.10, all connected to a CORE switch (WS-C3850-24XS-E) All 9200 are connected through trunk ports, whose native vlan i is the management vlan where all switches have IP adresses. Now a f...
Resolved! Heat of Cisco switch and HVAC calculation
Hi A costumer is asking us how much heat a 3650 switch are producing to calculate the HVAC for cooling. We are cheeking the DATA-SHEET but the only information about this is is the Airflow and Operating temperature. Anyone knows where we can find thi...
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...
Cisco Packet Tracer 2960-24TT indicates Orange (amber)
Hello everyone. I work in Cisco Packet Tracer and have a simple network with 5 subnetworks connected through 2960-24TT Switch. The problem is when i connect 5 subnetworks to 1 network some (3) routes light orange (amber). And i can`t fix it. Where sh...
EEM scripting help
I'm trying to have EEM script where I run the script manually and it display the output of the results in the session but for some reason I'm unable to do so. This is what I have so far(config)#event manager applet TestCommand(config-applet)# event n...
High Memory Utilisation 9200L
We are seeing random high memory utilisation spikes on our Cisco 9200L switches, running version 17.9.4a. We thought this might be related to the application visibility that is pushed out to them via Cisco Catalyst Centre, so we disabled application ...
Reset mot de passe sur Cisco Nexus N3K(C-31108TC-V)
Hello, Je désire resetter le mot de passe d'un Switch Cisco Cisco N3K(C-31108TC-V). Je n'Ai pas accès au CLI via ssh ou console port. Merci pour vos retours
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