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
I've inherited a problem...I have a 2960 Stack at work with a blade running Windows Server 2022. The Windows Sever has a new VLAN (172.27.41.0/24) built out with the DHCP scope 172.27.41.25-254. (*Note, you'll also see some trunking for VLAN 21... th...
In a mixed 9300L/9300LM stack, is Stack-T3A cable compatible with C9300L-STACK-KIT connector? Conversely, is Stack-T3 cable compatible with C9300L-STACK-KIT2 connector?
We have a case where with C9200 switches we configured two REP edge no-Neighbour ports to connect a device that does not support REP as documented in figure 54 at this link interface GigabitEthernet1/0/2 description Link FROM CPU 2 ETH2 switchpo...
I am trying to obtain port input/output information form a 9200 Catalyst.Using the below command gets me input/output information but does not provide the port description:sh int | in is down|input never, output neveroutput:GigabitEthernet0/0 is admi...
I am working on an NDFC deployment for a customer and I have run into a road block regarding user authentication. The customer wants to use RADIUS to a windows NPS server for user authentication which makes sense. NDFC would prefer to use local crede...
Hello all I have 2 stacks of 2 C9300-48T-E switches. We need to add extra 10GB copper connection using the SPF-10BaseG-T. Which switch can I add to the stack to enable this? Thanks Glenn
Hi,In our network I am seeing high CPU up to more then 90% when our multicast streams are enabled. CPU drops instantly to normal (20-30%) when I turn off the streams for a minute.a HSRP redundant L3 switch named switch2 (Catalyst 3850) was recently a...
I've been using the Cisco provided Visio stencils to create presentation schematics. The latest update for Nexus switches is from 2020.I am specifically looking for Visio stencils for the Nexus 9808 switch and linecards.Does anyone have info on where...
I have four C9300-48P stacked switches; whenever the switch reboots, it's not loading from the startup-config. All the time, I have to do #copy startup-config running-config. And it's not showing the config register value when I enter the #sh version...
Hello everyone We face a big problem in one of our schoolsThe internet speed dropped from 100 mb/s to less than 5 mb for a short of time then back up to 100 mb/s. this occur all day. All the switch the installed are catalyst 2960 with basic configura...
Resolved! StackWise Virtual in the ACCESS LAYER
I have a client who is considering configuring StackWise Virtual (SWV) on his Catalyst 9410 ACCESS LAYER switches. The switches have DUAL SUP modules in them and they are L2-ONLY... VLANs, STP, DOT1Q trunk, QoS for VoIP, etc... no routing, no VRFs, e...
Hi,If we connect PC to a trunk port without portfast, how long does it take for RSTP to converge?My guess is 21 seconds - 6 sec of max age timer, and 15 second of learning timer. Would that be correct?
Resolved! Catalyst 9410 Dual SUPs and Failover
Hello!I have a Catalyst 9410 chassis in the ACCESS LAYER - L2 ONLY - with DUAL SUPs. BUT, I only have the DNA Essentials and the Network Essentials licenses, NOT the Advantage license, so that means I do not have some HA functionality like NSF or ISS...
Hi All,i have a cisco 6509 switch and one of the interface is connected to the server. I'm seeing lot of pause output on that particular interface.when i checked the load on the interface for the past one month , it is only 1 to 5% utilized (both inp...
Dear all, I'm using this configuration for a BW limitation on Cat9500 plt, below ad example: ###################################################ip access-list extended source-bw-limit10 permit ip any anyclass-map match-all bw-limit-classmatch access-...
