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Forum Posts
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
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...
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
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...
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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?
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...
Resolved! Vlan0 for 802.1P traffic.
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?
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