Switching

  An interface whose trunk encapsulation is "Auto" can not be configured to "trunk" mode. I got this message while I'm configring etherchannel, in specific it was in " interface port-channel 2" 

Hi guys, We are upgrading our switches from 2960XR to C9200L-48P-4G-E. On one location we have a SFP-10G-LR with a fiber connection to another router. Do you know if we can use this module on two C9200L-48P-4G-E.Thank you for your help. I used the co...

Hi AllI've inherited a newtwork that includes the C3850 and we've installed the C2960X. These are hooked up via copper ethernet and have a very simple configurationC3850 interface GigabitEthernet2/0/2 description Uplink to C2960X switchport mode tr...

hi,is it possible to configure two vpc peer-link (port-channel trunk) between two N9K?i.e. port-channel 1 would be a temporary trunk and uses MM fiber cable and port-channel 2 would be the 40GBASE-CR4 pre-fab direct cable.the 40GBASE-CR4 would arrive...

Hello from Germany, packettracer worked verry fine for me on Ubuntu 18.04 - I worked with the 7.2.2 Version.But now after the hollydays packettracer dont't start anymore.I found that the download on your page has changed for the 7.2.2 from *.tar.gz f...

Hi all, I have a cbs350-8p-e-2g with version 3.4.0.17, every time to reload it will show below message but I didn't make any configuration changes. Is it a bug ?"You haven't saved your changes. Are you sure you want to continue ?"

Hi there,I have a question about reconfiguring ports on a couple of core switches at one of our sites.The site in question has a pair of Cisco 6807-XL chassis running in VSS and I have setup some local SPAN ports for a new network defence system. How...

ROM: System Bootstrap, Version 15.0(1r)M16, RELEASE SOFTWARE (fc1)Router uptime is 1 minuteSystem returned to ROM by error - a Software forced crash, PC 0x30EEBBE8 at 06:3 9:57 UTC Wed May 8 2024System image file is "flash0:c2900-universalk9-mz.SPA.1...

I have a couple of switches that are trunked via a LAN cable from another switch. I noticed that these switches sometimes have a hard time to SSH into. I get the error: "Connection timed out". After a while and a few tries I can connect just fine. I ...

Hello Everyone,I have a Firewall and 2 Cisco Switches.Opnsense Firewall (FW)Cisco CBS350-8FP-E-2G (SW1)Cisco CBS250-24T-4G (SW2)The current topology is as follow.Opnsense Firewall (FW)--->Cisco CBS350-8FP-E-2G (SW1)All 4 VLANs are configured on the F...

Good morning I am facing the following problem on a customer location with main and backup router. cisco ISR4331/K9 We see constant incoming IHQ packets on the WAN Interfaces on both routers. At the same time there is almost no traffic on the WAN Int...

Hi Guys n Gals,I am having a bit of trouble with an assignment I am doing in packet tracer.I don't have the files handy until the eve, so will send pics/files later if required.My problem is that I have an access router connected to 3 separate cluste...

Question, We have recently installed multiple C9407R units in stack-wise virtual that are in production, both unit 1 and unit 2 are in the stack and passing traffic normally. When running a 'show inventory' it does not list all the installed transcei...

Hi all-I have an old 6509 with a SUP720 that I seem to have killed. I was trying to upgrade the code.Before the reboot, she file systems looked like this:and the sup-bootdisk: directory looked like this:I changed the boot line in the config from    b...

I have two IE3200 switches and I want to do a stack with these, someone knows how I can do it? is this possible?