Switching

I know that when we add a power-on switch to stack, re-elect a new master will occur, but can someone tell me what exactly happened, I mean wich switches will reboot? and how the stack will elect the new master.thank you 

Below is an example of alerts that we received for our Cisco 9300 switches; Cisco IOS XE Software, Version 16.09.04We would like to understand how we can customize the alerts that specifically address each hardware, Cisco IOS version AND the specific...

Hi,I have been attempting to configure QoS on the nexus 4k blade switch to set the CoS value of incoming traffic off the internal 10G interfaces, but have come across an error on which I can find no information on. Any advice would be appreciatedConf...

Hello,We are using Nexus C5548UP switch and want to enable nxapi feature for switch health monitoring. This feature is not available in the switch. Please suggest if any specific license is required to enable this feature? We are using this since lon...

Hi everyone,I'm having trouble finding any information on what these logs could mean:2011 Oct 27 16:17:48 XALBCVMNX01 %FWM-2-STM_LOOP_DETECT: Loops detected in the network among ports Po3 and Po4 vlan 100 - Disabling dynamic learn notificationsfor 18...

WS-C3850-12X48U running 16.9.5I added all ports to the Application Visibility enabled column but I'm not seeing any AVC/NBAR data.Tried rebooting the switch but still no data.Does it take a while to show up or is there something wrong with my config?...

we get this message on regular basis, 5 - 10 times a day - no issues though  FEC: pagp_switch_port_up: no etherchnl config - related to PAgP protocol, whats the possible cause ?

Hello, In our DC we're utilizing VPC feature with pair of Nexus switches like N9K, N6K, N5K. Sometimes where's an urgency to reload one of the pair switches. The reason could be: upgrade, or device misbehavior (for example because of more than 13xx d...

Hi, I have a mini test setup that I am attempting to setup to support testing of IP phone provisioning. The setup consists of a IP Phone, Windows 2008 and Cisco 3560 POE switch. On the switch I have created three VLAN'sVLAN 100 Native - 10.252.100.0/...

Has there been a End-of-Sale, End-of-Life, or End-of-Support Announcement for the Nexus 9000 93180YC-EX, NXOS 9.3(3)? I am seeing that some of the Nexus 9K's have End-of-Sale and End-of-Life Announcements, I am wanting to confirm before more are boug...

Hi there,On my Nexus 3548 switch, I'm wanting to create a filtered SPAN session to port mirror only UDP data from one Ethernet port to another:switch(config)# ip access-list acl-udp-only switch(config-acl)# permit udp any any switch(config-acl)# exit...

Hi, We are setting up a new site office & as part of requirement  9200 Catalyst switches (4 members) are procured. Just want to know, is there any option to configured this 4 switches in stack without stack cable, as this switches will be placed in d...

I would like to connect (4) 10Gb SFP+ ports on Catalyst 6880 to Nexus 9300 40Gb QSFP to provide 40Gb bandwidth between 6800 and 9300.  Catalyst doesn't have 40Gb port so I am thinking of combining (4) 10Gb SFP+ to Nexus (1) 40Gb QSFP port. I have th...