Switching

Hi all We have 3 C9200-48P stacked switches, with SFP+ network modules C9200-NM-4X on each. We have observed the Te1/1/x ports have disappeared from the interfaces list. Is the network module C9200-NM-4X hot swappable ? Can we try to remove it then r...

Hello allI´m using a Cisco ISR 4321 with version 15.5(3)S4b, I need to block all traffic from one specific mac address. So far I have found that I have to run this commands  mac access-list extended DENYMACdeny   host aaaa.bbbb.ffff any class-map typ...

Can anyone help explain the follow errors I am seeing in my POE Switch? Thank you. POWER_OVER_ETHERNET.giga-swx 0/4 Couldn't enable pre-802.3at mode! --err code -3POWER_OVER_ETHERNET The PoE subsystem has detected an error and will be internally rese...

Hello guys, I found at Cisco Catalyst 9200 Series Switches Datasheet that Catalyst 9200 supports 4096 VLAN ID's and Catalyst 9200L supports 1024 VLAN ID's. So, it isn't possible to configure VLAN with ID's above 1024 on Catalyst 9200L switches?  Than...

Hi Community. We like to add following service policy under a specified Trunk Interface but only on a specific VLAN.-----------------------policy-map child class voice  priority level 1  police cir 20000000class class-default policy-map parent class ...

Good morning, all! I have a new Hyper-V host that I have connected to a pair of Nexus NX5548 switches. The host has two 10Gb ports that I currently have teamed in a Microsoft Network Adapter Multiplexor Driver. These ports are connected to ports on t...

We recently upgraded a 9200L-48T and a 9300-48T-A switch to this version, and immediately had troubles with MITEL phones, models 5220 and 5224, which were no longer able to communicate via the DHCP relay on SVIs on their VLAN. Specifically, option 12...

Hello, i have a problem with dotx. Noticed that cisco c2960x with 15.2(7) dotx authentication is not working. On all others cisco switches such as c2960s or c2960 with 15.0(2) version dotx authentication are working. There are no difference in config...

Hi guys, I just want to know on how to limit the bandwidth per vlan? I have a project with 20 google wifi connected to my cisco switch and I want each wifi will connected on different vlan's. Example google wifi 1 connect to vlan 2, wifi2 to vlan 3 ....