Welcome to the Cisco Community Ask Me Anything conversation. Submit your questions from Monday, February 2, 2026, through Friday, February 20, 2026. Our colleagues Amruta Navadagi, Anaya Kalawat, and Mohammad Mehtabuddin will be waiting to assist you...
Dear Sir,Kindly i need the help . i have 200 mbps internet speed from ISP. i am getting the same speed once i connect to the sophos firwall but one i connect that port to my cisco switch WS-C3850-24Pseries than i am getting the 100 mbps speed. kindly...
We are planning to do a software downgrade from 17.06.05 to 17.03.04 for the catalyst 9300-24T modelI have read cisco document and understand it support for software upgrade .Does xFSU（Extended Fast Software Upgrade）support software downgrade as wel...
Afternoon all,We have a Catalyst 4510r+e that in November we was going to tweak the config so we can use at another site, which at the time booted up fine as we tested this as it has been sat there for a good few years (before my time here).... a few...
Hello Professionals!I am trying to re-arranging VLANs / STP protocol of my switches but I found something that weird.When I do>> sh spanning-tree rootI can see all of root port of each VLANs.Weird thing is that VLAN001 is pointing Gi2/0/46 as a root ...
I have a question regarding a C6800-32P10G module in a 6509-E chassis with Sup-2T.The module can operate in 4:1 oversubscription mode or 2:1 oversubscribed performance mode because the chassis backplane bandwidth is only 80 Gbps.Does this oversubscri...
I am trying to determine how to do this. The diagram below works except if one of the firewalls/wan connections goes down. Then the systems using that default gateway don't use the othe gateway if available. For example if the firewall at location 2 ...
Hi all, We are moving from Dell Switches to Cisco Switches. I have the config from dell switches I was just wondering if there is any way I could convert these config files so that it get compatible on cisco switches. (syntax wise) thanks, Kashif Ahm...
Hi all,i know about /30 subnet we use when we have to use point to point network./30 we use when we need only 2 hosts on either end of network.cansomeone tell me why and when we use /31 subnet mask.thanksmahesh
HiCan I use GE1 and GE2 ports to stack two switches?If so in what way?I want to use ports XG1-4 for something else.
I am lab testing a MACSEC configuration from an NCS55A2 to an ISR4431. However, the NCS only does macsec on 10G or higher interfaces, so I have made a switchport connection, access-mode same vlan, such that the NCS can connect at 10G and the ISR at 1...
Hi all,I have a few questions for network configuration on Nexus 93108TC-48. currently we are hosting private cloud for our customers and recently I have been tasked to do network hardening. I still new in handling network devices on production, afra...
Is there a way to do a 'wildcard' NAT, if you will, and only change one octet? I was told that something like this is possible, but haven't been able to find any information on it. Our company is moving their production site from one city to anothe...
I am having a brain fart tonight...If I have a Cisco 9300-24P using 200watts at 208v (as measured on a PDU), and I swapped it to a 120v power source, the wattage used would still be 200watts, correct?Thank you
Hello Cisco Team,I have a question about the mapping of the:WS-X6148A-GE-TX: 1-8, 9-16, 17-24, 25-32, 33-40, 41-48 Is there a speed limit of 1 G L3 per 1ports 1-8 and 9-16?i need more info to make sure i can run it as L3.I had a look here but need a...
Hello,On an ISP network, good practice is to switch the backbone to an MTU of 9000 on the access interfaces between the different equipment.Should we pass the sub-interfaces (VLAN) or access interface that allow to form the IGP with BGP/EIGRP process...
