Resolved! STP troubleshooting
Why would switch (A) participating in stp in vlan1 have a port blocking switch (B) that says no spanning tree instance on vlan1?
Forum Posts
So we have a DHCP and DNS server with the IP of 10.1.0.2. Is there a way to create and ACL that will allow the client to talk with the DHCP and DNS server and allow HTTPS traffic for browsing, but will not allow anything else? Here is what I have tri...
Hi,We are going to configure two core switches (NX-9000) and eventually adding more 9000 as edge switches. It's been a bit since I configured Cisco switches. I wanted to respectfully ask if anyone has any basic configurations they could share for the...
Hi Expert Team,i had two uplink from location_1 core switch to location_2 core switch. And i want to configure these two like if one uplink goes down then other one is Auto up. Is this possible ? means i want to set up a high availability or failover...
Do below modules support 10Mb speed ?C9300-NM-4GC9300-NM-8X
Dear all,I just installed a cisco SG500X-24 and everything is working as expected. The only thing I want to add is a VLAN especially for 3 different IPTV decoders based on their mac addresses. Is this possible with the webbased software without using...
Hello all,I have a 100mbps internet connection from the ISP and I would like to share this speed between 5 offices (allocate 20mbps to each office). I have a cisco router 2921 connected to the ISP, a cisco switch 3750 as backbone for the LAN, and Ci...
I have a default vlan 1 that has an IP configuration of 10.20.11.0 with a subnet mask of 255.255.255.0.I have an AP 10.20.11.55 that I want to place on its own VLAN because I intend to make this AP guest-accessible. I would want to segregate traffic ...
Hello, we have a CBS250-24PP-4G PPOE Switch in our House.Two ports are used for connection to an HDMI Extender over PPOE/LAN.The connection of the Extender works fine as long as there is no HDMI Signal over the Extender.The strange thingis, that at t...
Does the word (stock:second-hand) have the same meaning as the word (refurbished) when buying a switches?I asked this question because when i buying switches such as c2960x or c2960s model, some of seller said the stock(second-hand) meaning that The ...
Resolved! Voice Vlan
Hi All, I am currently working on a migration project in which I am migrating from a Cisco SG-300 managed PoE switch to a Cisco Catalyst 9200. I am confused about one command below: markdownCopy code voice vlan id 100 voice vlan oui-table ad...
Resolved! Forcing a time refresh (ntp) on switches
Hello all,I am tinkering with ntp services and ran into a bit of a roadblock when it comes to verification that everything is running.Is there a command in the IOS (12.8) that forces the switch to contact the ntp server it's pointing to in order to u...
Hi there,Thanks for reading!I'm seeing an oddity when trying to join a laptop to an SSID in PT. The problem is in the UI where I set configuration for Wireless0 nic. When I select an authentication type, the cursor jumps to the WEP password field a...
Hello, i'm deploying nac configuration (Cisco ise 3.1) and i'm unable to configure the switches IE2000 because they're not accepting the nac commands even if the minimun os requirement is met.They're running at least ie2000-universalk9-mz.152-3.E3.bi...
I have read some resources concerning various devices needing “power inline 2-event” configured on ports that they are connected to and I am trying to understand the reasoning.In my case I was having trouble with an Algo 8420 dual sided network clock...
