Ask Me Anything Event Welcome to the Cisco Community Ask Me Anything conversation. Submit your questions from Monday, November 4, 2024 through Friday, November 15, 2024. Our colleagues Rohit Chopra, Vaibhav Aggarwal, Anuraag Majumdar, Saquib Zeya...
Forum Posts
Hi,I'm trying to figure out that can I prevent log files altering in Cisco switch?I'm using logging persistent to put syslog messages to flash:/syslogtest1/ What does actually that "protected " means? I just cannot find any detailed documentation abo...
Hello, I have 2 switches Cisco SG250-26 and I want to use them to authenticate wired devices using RADIUS server (NPS).Is it possible to use these switches to automatically (dynamic) assign VLAN on ports using RADIUS ? Using other switches (other man...
I'm having an issue with my 3850-NM-4-10G. The module shuts down completely when hot swapping sfp's. Doesn't matter if they are 1G or 10G. The only way to restore connectivity is to reboot the switch. I'm running Denali 16.03.01, WS-3850-48 UPOE. I'm...
Resolved! Wildcard mask
Hi there? Please help me as I have been struggling with the general definition of a wildcard mask independent of ospf, and also what do the 0 and 1 mean exactly? I have tried Google but I can't really get the right answe
Hi dear ciscoman and womans ; We have a 2 cisco C7009 configured on the same VPC domain and for L2 switching Only.Those Two C7009 are using 2 supervisor eachone and are staffed with 7 N7K-F248XP-25E each one.Last week we had an issue with an module w...
Resolved! STP topology changed and Root Bridge
I've got two things here. First is STP topology change we see in our logs. Logs shows that it happens after 1 hour or 3 hours and sometimes after 5 hours. My show spanning tree detail result on my root bridge bridge often shows that it is from a port...
Hi, This firewall have about 10 site to site VPN via WAN networks. I have slow network issue. When other sites send data to this site, the speed is OK. But when this site sends data to other sites, the speed is slow. I could not find issues anywhere...
Hi folks, I am in the process of replacing some switches in our network. We are going from a 3750X stack to a 9300 stack. These switches are where our servers reside. Majority are ESXi hosts. I am confused on how to actually configure these ports. On...
I am trying to migrate from one cage to another. Cage A has a pair of Nexus 6001 switches with VPC in an etherchannel and the new cage has a pair of Nexus 9200 with VPC in an etherchannel. My thought to stepacross the migration was to connect the two...
Resolved! Error assigning port to VLAN on 877
I've got an 877 running IOS 12.4.6, and I want to create two VLANs (1 & 26)1 already exists, and all the ethernet ports are already in it.I create VLAN 26 by doing:int vlan 26 ip add x.x.x.x 255.255.255.0Now, if I go to an interface and do:int f0 swi...
How would you implement redundancy on the switches in this scenario? Is vPC the only way? Any other way this can be done with 2960x and 9000 series switches?
Hello experts, i'm experiencing the issue that on my switch nexus 3K i have a drop on the multicast steam one time per dat at the same time and the drops is always about 3 min . Seems a time out bu i don't know if it is related to igmp management or ...
Hello, We have enabled aaa authentication on a switch, but "show authentication sessions" says "No sessions currently exist". The switch is a 2960X. Same config works on other switches in the same organisation. Can anyone see what's wrong ? Output of...
Does , Anyone can make sure c9200L network essential support IPV4 PACL or not . All Document I can find only mention support IPV6 PACL only.
Hi, I have a question about C3750E switch.IOS image :c3750e-universalk9-mz.150-2.SE4.bin Receive a lot of log event about" Failed to send hrpc non blocking message". I have seen some related information. ex.https://community.cisco.com/t5/switching/ca...
