Hello Everyone, We could see MAC not found on the Cisco 9300 switch. Also we noticed that this alert triggering everyday around 2:15 - 2:45 UTC. No other time seeing this alert. What would be the reason? How to arrest this alert? We have regenerated ...
Forum Posts
How do I use the subject?Currently, we want to build a VRRP configuration with other companies' devices using Catalyst3560You can enable ip routing, create an SVI, and assign an IP address on the device.However, you cannot configure VRRP for SVII tri...
Hi all,I have been trying to configure trunk in CML external connector bridge but for some reason even though I turned vlan filter off ARP request is not going through the bridge. I packet captured the link conencting to the external connector in CML...
Hi,I am trying to clean up boot variables but I am unable to do so despite using the no boot system switch or no boot system flash commandBOOT variable = flash:/flash:cat3k_caa-universalk9ldpe.16.12.12.SPA.bin;flash:cat3k_caa--universalk9ldpe.16.12.1...
Hello everyone. I have a network with the topology shown in the figure below. In black oval shape (layer3 switch) The port f0/1 is main port and port f0/2 is backup link to connecting to c3750-12s(root bridge) with switch c3750-12s because in black...
hi there, there is an issue with my wireless router. the ping command reaches the wireless router but does not go through the wireless router. so, the connectivity between the wireless router and the default gateway router has an issue which I cannot...
Hi,we have a georedundant dark-fiber connection between two company sites.We're using a setup of 2 9336C-FX2 on each site, where each switch is directly linked to a single peer on the other site.The 2 switches in each site are linked using vPC. We ag...
Hi,We have a stack of 4 X C9300-48UXM switches in one of our Hub rooms. They are all on version 17.12.04.All these switches got reloaded yesterday. All these switches are connected to the main power supply. We got it confirmed with the power company ...
Resolved! CCTV Best Practices - VLANs and NTP
As the title states, I'm reaching out to the community to hopefully learn more regarding CCTV network best practices and/or lessons learned. First question is in regards to VLANs. The previous network engineer segmented and organized the network by ...
Hello everyone,I'm having trouble importing an SSL certificate to my Catalyst C1200, and I would greatly appreciate your help.Goal / MotivationI want to enable HTTPS access to my C1200 using a valid TLS certificate issued by a trusted certification a...
I have 2 AV devices connected to the same access switch on the same VLAN. The SVI for this VLAN is on the distribution switch, but I don't think either the SVI or the distribution switch is involved in this communication between the 2 devices. Thes...
Resolved! Stack question between 9200L 48T and 48P
Hi there,We are looking to replace our current 2960 stacks. Not each port needs the POE function, so I want to know if 9200L-48T and 9200L-48P can build a stack. Thank you.
After the uplink of the HSRP Active switch went down on a Catalyst 3850 running HSRP, no HSRP switchover occurred, but the HSRP virtual IP address was not able to establish a good connection.HSRP interface tracking is not configured.The physical IP a...
We have a stack of 5 9200 48p-E switches that show a port fault on Port 1 on 3/5 of the switches in a stack after checking the cables they seem fine what are the chances of a bigger problem with the ports themselves
Hi there,Our C9Ks are running IOS 17.6.4 and we've just been caught out by (I think) CSCwf81913 which causes PTP to fail after 2 years 14 weeks uptime. Since 17.6.x is basically EOL, we're looking to move to 17.9.5 or potentially 17.12.4.However I'm ...
