On "Configuring Cisco StackWise Virtual" document. It says "Etherchannel 127 and 128 are reserved for SVL connections". but the later configuration did not mention configure etherchannel 127 and 128 rather just specify 2 interfaces as SVL link.My que...
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I am having issue with one of my desktops connected to my switch interface flipping between two MAC addresses (see the attached picture below for log). When I disconnect the desktop the IP and the MAC issues will not show in the log. I reimaged the ...
I have a question about the following default values in Catalyst 9000 series version 17.12.5.・no thermal shutdown disableI have a concern that the temperature will rise and the power will be turned off when the FAN fails.・no ethernet reuse subInterfa...
I am having trouble configuring the C1300 and Dell 6224 switch.On the Dell side, I received the following configuration:The assumption is that traffic in VLAN150 is tagged, and I have no problem with that. The problem is with VLAN1, which is supposed...
Hello Cisco community, I have a Cisco 9200L. For some reason, we have had no luck migrating from password 7 to password 6. Each time I attempt config, it gives me an error. I even tried a new switch for additional testing, but still gives same re...
Greetings,I have aquired a second hand WS-C3650-8X24UQ-S. Appears to be working as is (connected to router and one pc), and no password. When looking up reset instructions, I see typically you flash_init, then delete config.text and vlan.dat (after h...
Resolved! How to Read Cable TDR Testing Result
Hi network gurus, I have a hard time to determine which part cable is broken at below. Do both short and open mean that we have cable issue from patch panel to the Ethernet port on the wall (the cable run inside the wall/ceiling), and the ...
I was in the midst of trying to write a Cat Centre template to handle the prompt when using 'vtp primary' exec command for a vtp v3 server.Then I realised I could just tack on the 'force' option and bypass the check. But I wanted to know what it was ...
Hello. I was searching for information but i cant find if switch IE-3400-8T2S-E should be connected with communication wire between expansion module IEM-3300-16T ?
We are planning to replace two Cisco Catalyst C9300 switches that are currently configured with HSRP.Could you please recommend the best approach to perform the replacement while minimizing service downtime?Any detailed guidance or best practices wou...
Hi there, I'm working to change the boot method from BUNDLE to INSTALL, and before doing that, I'm checking more packages.conf file to ensure the packages are the same version as the running IOS in the switch. However, it's not. [ Switch 1 ] Active...
Hello all, I'm having a very strange issue with a 3rd party purchased 3850 WS-C3850-24XS stack. I am using the Mgmt-vrf to manage the switch and pings work when you source from that vrf. But pinging without the source of vrf doesn't work NOR does it ...
Hi all, Could someone please explain to me why I see the things I do with MST? I have the below setup in a lab, where SW1 is configured with the lowest Cost and is the root bridge. Everything is working as expect, in regards to STP, and SW4 is Blocki...
Hi, We received a replacement supervisor and upgraded the line cards software without any issues. We notice the firmware versions are different the supervisors devices. The replacement supervisor unit has an higher firmware version on it then the ac...
I have 4 Nexus 9300 switches. I am trying to assign them IPs and create a VLAN. I noticed on one of the switches the default VLAN (1) has no Ethernet ports available except for the trunk lines 47 and 48 assigned to it. When i created the VLAN it d...
