Switching

Resolved! Why we see interface TenGigabitEthernet1/1/1 ?

Hello All When i enter " show runnig-configuration " in Cisco 3850 Switch i see interfaces through interface TenGigabitEthernet1/1/1 - 1/1/16 but there are no ports like that. Port numbers are 1/0/1-48 and 2/0/1-48.Thanks

3850 software upgrade

I have a Ws-C3850-48P stand alone that I'm trying to upgrade. The current image is: cat3k_caa-platform.SPA.03.07.03E.pkg. I'm trying to upgrade to : cat3k_caa-universalk9.SPA.03.07.05.E.152-3.E5.bin When I try the switch install command the operati...

Resolved! WS-C4506-E (EOS) Replacement device suggestion

I am having 2 number of WS-C4506-E with WS-X45-SUP6L-E (Line Card). Now it is EOS device and my customer wanted to replace this switch. Can you please suggest me replacement device I should suggest to my client.Current setup running : HSRP

QinQ and etherchannel load balancing

It seems that, when outputting traffic on an etherchannel configured with "switchport mode dot1q-tunnel", a Cisco switch is not able to "look" into the IP payload for the IP src and dst addresses to use for balancing - it seems to be treating the tra...

delete

Trunking mode

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

Switches SFP + Ports

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 to register a 4506-E with Smart Licensing?

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...

Connecting Cisco router to home router to give lab network internet access

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...

Failed authentication session stuck in table

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...

Management Vlan?

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...

CSCvs41591 Bug details?

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?...

Is there a way to look up product info by serial number

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...

Cisco 3850 switch- Unable to upload IOS from tftp server

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...

Resolved! Cisco Catalyst WS-C2960L-24TS-LL - No IP and WebUI

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...

Switching

Forum Posts

Resolved! Why we see interface TenGigabitEthernet1/1/1 ?

3850 software upgrade

Resolved! WS-C4506-E (EOS) Replacement device suggestion

QinQ and etherchannel load balancing

delete

Trunking mode

Switches SFP + Ports

How to register a 4506-E with Smart Licensing?

Connecting Cisco router to home router to give lab network internet access

Failed authentication session stuck in table

Management Vlan?

CSCvs41591 Bug details?

Is there a way to look up product info by serial number

Cisco 3850 switch- Unable to upload IOS from tftp server

Resolved! Cisco Catalyst WS-C2960L-24TS-LL - No IP and WebUI

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