Hello, Can someone please help me with these subnetting problems? 1) Suppose you have the network 172.16.0.0/16. How many subnets do you get if you subnet it to a /23? I'd say you get 2^7=128, because 23-16=7. This calculator agrees with me, and it l...
We have some Cisco Catalysts 9300 Switches installed in a production network for our client. They are functioning as Access Layer Switches. We just received communication from the client about the following errors appearing on three ports on the same...
Hi all, I'm trying to configure a shared infrastructure with VRF light for two imaginary customers. * R2 & CRB2 have identical BGP configuration such as same ASN, WAN IP, BGP router id and network advertisement.* I have created two separate VRFs at R...
Hello guys, I have encountered and issue when I try to traceroute/ping from one router to another. They are both in VRFs but I have configured VRF Leaking between the routers. When I try to ping/traceroute from one of the routers trough ( for exampl...
Hello, I am currently testing some of the capabilities of a Cisco IE 4000 Switch.I was wondering if there was a way/command to manually energize the alarm relay of the switch or if it was only possible by meeting one of the fault conditions.
Hello team, for my next network segmentation, I would use VRF and route them to a firewall for filter the different networks. 4 VRF are planned : - VRF "front" - VRF "front management" - VRF "back" - VRF "back management" In each VRF, we'll have ...
Hi,I have a simple question. I tried searching for the answer, but dit not find any.OSPF has 5 different message types, Hello, DBD, LSR, LSU and LSAck. What about LSA? What is Link State Advertisements, if not a OSPF message type?
I have a problem with my topology, i think the problem is in static routing, can someone explain me what is incorrect?
Good day, community. I have a question about dynamical/automate changing routes based on bandwidth utilization in Segment Routing environment. For example, from R1's perspective we have 2 links to R2. On link#1 bandwidth usage is limited to 50mbps an...
Hi team ,I just wanted to ask why we do not support dna bit in normal ospf ?As of now LSA refreshes in every 30 minutes in order to maintain the LSDB but in case of virtual link we use DNA(DoNotAge) in order to suppresses the periodic hello and lsa R...
Hi everybody,I just received this from a customer, who thinks this might be a record uptime for a Cisco device. Anybody can beat this ;-)Regards
Hi,I'm new in cisco packet tracer and have some problems with this topology. I need to configure static routes for this network. Can someone explaine me how to do it? Thanks in advance.
I want to simulate an SDN based smart home network. is it possible to simulate a smart home network with an SDN controller on packet tracer?
I’m tracking a UDP stream through multiple devices. It’s difficult obviously, all the reliable metrics that tcp uses don’t exist. So I’m looking at the source/destination port numbers and the inner IP identification field, it’s a gre tunnel.I have a ...
Last week I noticed this device randomly reboots in the middle of the night. I verified that the UPS is not rebooting. Has anyone experienced this recently with this device? The deviceis a ISR4331-SEC/K9.
