Cisco Catalyst Center
This community is for technical, feature, configuration and deployment questions. For production dep...
2153 PostsActivity in Networking
CDP Mismatch from CDP: Why?
Switch A, Cisco 9300, VTP mode transparentinterface GigabitEthernet1/0/5switchport access vlan 3switchport mode accessSwitch B, Cisco 3560, VTP mode transparentinterface GigabitEthernet1/0/1switchport access vlan 3switchport mode accessVlan 3 (L2) vl...
1921 Router Config Help
Hello, I know very little about configuring cisco hardware and need some help..... we are currently running an 1800 router and I obtained a new to me 1921 router and would like to replace the 1800 router with the newer one, I managed to get it factor...
Cisco Archive config - any changes / Cisco commands
Hello Professionals,I have configured Archive to log config whenever type write memory.I would like to use this auto backup in other way too.Could anyone tell me how to configure followings?1. Is there possible to backup config whenever I make any ch...
Forward traffic from subnet to another on C3750
hi guys thanks for your suggestions in advancei just reconsidered my whole message. after trying some things. i think i need to set up acl but i'm far from good at it.what would be the ip access-list extended or access-list lines that'd allow me to h...
ISR 4k Netflow not sending data
I've got 15+ Cisco ISR 4000's (a mix of 4331s and 4551s) in our network and when trying to setup Netflow to PRTG, It seems that when I hit 5 interfaces that need to be monitored, there is always 1 that won't come up in PRTG and that doesn't send data...
Multiple sub interfaces with Native vlan's?
Sorry, I am reposting because I want the community to see this because where I previously posted, the thread shows resolved already.I have an ASR 10g interface that is connected to a native vlan1 in a HP switching fabric (8 switches) for databases (i...
vSmart Login Banner not coming before login promt on version 20.9.4
Hello Guys,Good Day !!This is very strange that : on version 20.9.4 the login banner is coming after the login prompt but it is perfectly coming on version 19.2.31 i.e. before login prompt.Would you please help me to fix : i am on version 20.9.4Early...
Minor edit in one of the OpenTelemetry Blog
Hey!I'm Chitransh, part of the team at SigNoz.Thanks for using SigNoz as one of the Observability backend for OpenTelemetry in this blog - https://www.thousandeyes.com/blog/data-observability-backend-opentelemetryI just wanted to point out a small c...
internet speed slow from router to core switch
Hi we have cisco 2921 router connected to core sw and internet from the ISP, the issue is that the internet from the core sw is about 150kb while from the router is 10mb.after a lot of testing, I disconnected the router and connected another similar ...
Resolved! ASR1001-x VLANS on Sub-interfaces
We have just installed an ASR1001-x router and need to suport 3 vlans at present is there any information/documentation on how to do this At present we have three sub-interfaces on Physical Port G0/0/3 - namely 0/0/3.3, 0/0/3.4 and 0/0/3.5how do i c...
How to configure NAT on cisco IOS XE cEdge for L3 TLOC Extension
Hello Guys,Good Day !!Need your help and guidance on cli commands to configure the NAT for the Internet Link on cisco cEdge for the direct L3 TLOC extension (Private IP address) between the 2 cEdges.In vEdge we can simply config NAT enable under the ...
Resolved! Dual ISP connection gi0/2 not able to connect to internet
Hello,I need your help - currently we have a 2921 Cisco router connected to dual ISPs using "gi0/0 & gi0/1" and we are able to connect to either ISP successfully. Once we connect gi0/2 to any device the connected switch is not able to access the in...
Resolved! 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...
2960-CG IGMPv3 Snooping minimal
On my Cisco 2960CG running 15.2(2)E10 when I run command show ip igmp snooping detail, among other things I see that IGMPv3 snooping (minimal) is enabled. Why is this feature called minimal? What is missing from normal v3? Is there any official Cisco...
Resolved! Enable EIGRP on Cisco 9500 switch?
Hello All,I have a 9500 that does not allow EIGRP. How do I enable it on the 9500 series switch?C9500(config-if)#ip router ?isis IS-IS Routing for IPVersion: Version 17.8.1rThank you for your insight.J
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