I am working on upgrades to a high critical backup network. This network uses OSPF for routing. For base idea, the network is 30 sites. Each site gets one Layer 3 switch. We are running IOS-XE on 9000 series switches.Most of the network is connected ...
Forum Posts
Hello communityI'm trying to figure out what is the best way to establish the control connections toward the SDWAN controllers on cloud using MPLS links only. The SDWAN routers are behind the Core switches. The first option is use a local internet in...
It's a very silly question, but what should I answer if someone asks me differentiate between a router and a switch.It seems very simple question, but sometime I think that a switch can also do almost all the stuff which a router can do in today's wo...
Resolved! What does K stand for in EIGRP metrics
Hello,This isn't particularly useful regarding anything operationally concerning EIGRP in general however I found myself incredibly curious... what does the "K" stand for in K-value? The only thing I could find that could perhaps be a possibility is ...
Hello, everyoneI have this simple topology. P-1 and P2 are customers with subinterfaces in VLAN 10.I haven't gotten to service instances yet, all I am configuring is a simple subinterface-based xconnect.-------R1--------interface GigabitEthernet1.10 ...
In my datacenter I am running k8s cluster on bare metal and integrated cilium CNI with BGP using Cisco nexus switches. I am using etp: Local for the performance. I have assigned dedicated 5 worker nodes for my LB work to expose service IP to expose i...
Hello, everyone.I have this topology. R4-XR peers with R3 (which is a route reflector) over IPv6 labeled unicast. The core of the network is only running IPv4 with MPLS.R4-XR advertises the 2001:DB8:15::15/128 prefix to R3(RR).Here is my question. On...
Hello, everyone.There is a configuration in Inter-AS Option B that really confuses me.When we configure the BGP VPNv4 session between the two ASBRs, why does the BGP next-hop need a /32 route in order for MPLS to work?Cisco:For IOS-XR over Inter-As O...
Hi Community, I need your support to understand if Cisco 8000v router supports VXLAN. I have two Cisco 8000v routers with bgp peering and want to configure the VXLAN between the two devices. I went through multiple documents but there is nothing spec...
I’m preparing to upgrade an ISR4431/K9 that is already running in INSTALL mode.show boot confirms the router boots from: bootflash:packages.confIf anyone has a full, modern ISR4431 install‑mode upgrade sequence, including install remove inactive
Hello Guys,We are planning to upgrade Cisco router Cisco C8300-1N1S-4T2X from XE image 17.6.5 (Rommon image 17.3(5r)) to latest XE image 17.9.5a. As per Rommon compatibility matrix, this new XE image should have minimum rommon image of 17.3(1r) and m...
I recently got a IR829 and I am trying to install CCP Express onto it. The thing is that it should come with a cpconfig file but it does not. I was wondering if anyone has the name and content of that file so I can set up my router accordingly.
Has anyone else noticed loads of these alerts in the Security Center in the last few weeks - I am seeing them from multiple sites and alerts are from both on-prem and public (google/opendns) DNS servers.
I am reaching out to see if someone out there can help me with this persistent issue I have been dealing with. I have a NCS560 that I recently unboxed from our warehouse and I am trying to get it booted up so I can upgrade the SW. I am getting this m...
Welcome to the Cisco Community Ask Me Anything EventWe invite you to participate in our upcoming Ask Me Anything (AMA) conversation. Please submit your questions from Thursday, September 3, 2026, through Wednesday, September 30, 2026. Our experts Eri...
