Hello, Cisco Community!I’m really happy to share that I’ll be hosting the Cisco Community Lab Series, a brand-new hands-on learning journey designed to help you build practical networking skills step by step.Every Thursday at 8 PM EST, I’ll post a ne...
Forum Posts
Resolved! MST instance change shutting down SVIs
Hi everyone, (hopefully not a double post, first upload seemed to fail) maybe someone can help me understand a little better how MST works. Following scenario: Network set up in a star topology Core-Switch is STP root, acces switches connected via s...
I wanted to check if anyone has experienced a particular bug related to executing kron policy-lists with kron occurrences on Catalyst 9300 stacks. This issue seems to occur only on stacks with more than two members. Below is the configuration I was u...
Resolved! ISSU Support between software Trains
Have customer that is very concerned with their core network being Non Stop even for software upgrades which have been problems in the past. In researching different configurations with Chassis and dual sups the question of ISSU support comes up. whe...
Resolved! Cisco C6807-XL not powering on.
Hello everyone!I need some technical advice for Cisco C6807-XL. We got powering up failure. The PSM modules IN led is constantly lighting, but the chassis won't boot. The AC cables are OK, PSU looks like too. The device doesn't react on a cold boot v...
Resolved! Catalyst Kron Daily Backup Timestamp
I have the following kron backup set on my Catalyst 3850 switch:kron occurrence daily-backup at 1:00 recurring policy-list dail-backup ! kron policy-list daily-backup cli show run | redirect ftp://192.168.96.65/3850Stack-config-$(TIMESTAMP).cfgBut ...
Hello team, Currently, we have a network of 9300 switches where 802.1X has been configured on each port, and each port is connected to a Windows PC. Initially, the user logs into the PC, then the switch sends the session to ISE, and ISE validates it ...
hello, I need a suggestion to change my nexus infrastructure to CAT9K using Stackwise, that I didn't have a lot of knowledge on, in fact in Nexus environnement I have this : where I use multichassi Port Channel, to ensure real redendency, but In my n...
Hi my workmate is trying to configure one of out new Cisco 9200 switches, and he is not entirely familiar with the Cisco IOS, to that extent he issued something along the lines of a reset all command and wiped the boot image of the switch and had to ...
Hello,I have a question regarding interface configuration.Should PortFast be enabled on the interface that connects to a firewall?If it should be enabled, could you please explain why it is necessary?And if it's not needed, I would appreciate it if y...
Resolved! Catalyst1000・2960LのVLAN変更について
お世話になっております。Catalyst1000とC2960Lを利用しているのですが、リモートでVLANを変更する方法があればご教示いただけますでしょうか。台数が多く、1台ずつコンソール接続で変更するのは厳しいため、いい案があればご教示いただけますと幸いです。よろしくお願いいたします。
Hello!There is such a problem in the network. There is a C9500-40X core, it is responsible only for the user segment of the LAN (desktop PC, IP phones, printers, air conditioners, UPS, video cameras, etc.). Eleven floors are connected to it via MM fi...
Resolved! root guard vs bpdu guard
Hi,Why would you choose one over the other?Root-guard will stop a superior bpdu from becoming the root.Bpdu guard will stop another switch from connecting entirely by shutting the port down.Why not just configure bpdu guard on all access layer ports ...
hi, I have test setup in the lab. 2 core (C9500-32C), 2 disti (C9606R) and 2 leaf switchesc(C9300X-48HXN stack). i am testing TRM on one VLAN within vrf, all with 17.15.03 firmware. ubuntu is test mcast server while clients are ubuntu and cisco test ...
Hello Team am trying to configure SNMPv3 with MD5 /SHA , but with MD5 it is working but SHA is not working . Snapshot are also attached for reference from SNMP Tester. ************************************************************ Cisco IOS XE Softwar...
Hi I have a question which switches do you recommend 8 ports 10GE POE please
