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Hi gentlemen,I wish to know when I should set my switchports' modes as TRUNK? Also, switchports connected to my end devices should be set to TRUNK or no?All the best
Could I use the SFP+ ports on switches with Ethernet cables? To add more SFP+ ports, would I need to use a module for the switch?
How do I register a 4500-E SUP-8 3.10.x or 3.11.x with smart licensing? I found the following command to change it to DNA Licensing, but I cannot find a command that works to register it. license right-to-use activate addon dna-advantage subscription...
I am fairly new to networking and am currently setting up a lab with a cisco 2611 router and a couple switches. I would like to connect my cisco router to my home router so I can connect my lab network to the internet. I want to go through my home...
We have a customer using 802.1x with ISE from both Catalyst 9300 & Catalyst 2960 switches; on both platforms a failed authentication will occasionally persist on a port after the offending device has been removed, with repeated authentication failur...
Good morning cisco community,I have a question that may seem dumb to the engineers in this forum. However, here it is...I am setting up a 2960 switch to use two vlans I created, vlan 10 and vlan 100.I originally set these up with ip addresses, it wo...
Hi all I've discovered the bug CSCvs41591 which should be "fixed" for Nexus NX-OS Release 7.3(7)N1(1): https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus5500/sw/release/notes/7x/Nexus5500_Release_Notes_7x.html Has anybody details for it?...
I have been tasked with identifying several switches. Some in use and some still in boxes. Without running all over the facility is there a way to find out what a switch is i.e. 24 or 48 port by using the serial number in a online lookup something si...
I am trying to upgrade IOS in Cisco 3850 switch from the tftp server.Currently running IOS Version: (cat3k_caa_universalk9-m) version 03.06.06ETrying to upgrade to : cat3k_universalk9.16.09.05.spa.binWhen I am trying to copy the iOS from the tftp ser...
Cisco Hi, Unfortunately, I tried to reset my device through the configuration CLI tab in IOS-WebUI and I ruined it.Now, I see no IP (no 10.0.0.1 or the IP the device got from DHCP).Also, I can't browse to it's IOS WebUI. Please, help me to recover th...
I am attaching a file that shows the garbage that comes up on a 3750 switch when I try to boot it up. It worked fine for about 3 months after I bought it but I tried to attach my other 3750 switch to stack them and I believe something happened to mak...
The question is from ENCOR learning. Why we need separate vlan (vlan0) for 802.1P traffic (CoS, QoS) if we already have 3-bit field reserved in any 802.1Q packet for QoS? What is actually flowing through vlan0?
Hello,Today, I open 2 boxes that contain 2 switchs 2960-X.It seems that someone else already configure them.I don't have any Cisco USB console mode.How to reset the switch switch ? I try :1 + Electric Start + Mode button2 + Electric Start full (3 gr...
Hello Everyone, So we will be stacking 2 x C9500-40X-A switches (StackWise Virtual). I just wanted to double-check if SFP-H10GB-CU1M is 100% compatible for this setup? Because, previously our senior engineer suggested to use SFP-10G-SR, but then I r...
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