Hello,We operate a high-traffic internet site. We are using an older device, the Cisco Catalyst 6513-E, as our backbone switch. When I run the show interfaces counters errors command, most ports appear normal. However, on the ports connected to a lin...
Forum Posts
How do I schedule a Catalyst 9K upgrade using CLI Commands.I clicked y below at the switch restarted.POC-SWITCH#install activateinstall_activate: START Tue May 27 12:34:05 AEST 2025install_activate: Activating IMGFollowing packages shall be activated...
Hi, everybodyI’m studying QoS, such as Policing. And I have one question: Why packets drop (violated), if interface rate not exceeded 128 000 bps, I don’t understand that moment ?I build lab on EVE-NG. Topology is very simple. R1 and R2 routers direc...
Hello everyone,I'm currently testing two Catalyst 9606Rs, each with two supervisor engines.In 'show module' I see the assignment as follows:Switch 1:Slot 3= Active, Slot 4= ICSActive= sso, ICS=rprSwitch 2:Slot 3= Standby, Slot 4= ICSActive= sso, ICS=...
I have an IDS and an IPS between my router and Cisco switch. However, it's picking traffic from the switch rather than the source, given that the switch changes the source MAC address. Is there a way to disable the MAC address learned on the switch o...
Hello geeks,We would like to add Vlan access lists (VACL) as a additional security boundary. We decided to bind VACLs to all unassigned VLANs and VLAN1. All traffic should be blocked. Acutally this means we use a MAC access list, an IP access list an...
Hi,May I ask if there is any way to deploy my own class-map into the default system-cpp-policy?I’m trying to restrict SSH connections to only one loopback address, and have all other IPs dropped.On basic routers, I achieved this using an extended ACL...
Every now and then I encouter mac flap entries in my log files.001360: Sep 16 12:33:00.020: %SW_MATM-4-MACFLAP_NOTIF: Host 0023.33b0.ae60 in vlan 11 is flapping between port Gi3/0/4 and port Gi1/0/49001361: Sep 16 12:33:00.457: %SW_MATM-4-MACFLAP_NOT...
Resolved! MST and PVST interoperability
Hi,Does MST and PVST domain need to have same vlans configured in order for interoperability to work?E.g. if vlans 10 and 20 are configured in MST domain, do they need to be configured in PVST domain, as well?
How to create SSH for Catalyst 1200-8FP-2G Smart Switch device type, I have problems when SSHing from device 1 to another device, or from the Fortigate device to the switch device, but if I SSH from a laptop there is no issue
Hello All,I just want a clarity.Wanted to know when does the switch exactly do a tagging.while traffic enters into access port does switch do any vlan tags or just when the traffic exit from trunk port switch adds a vlan tag for that traffic.
I'm reviewing a configuration I came across on an organization's network switches and would like some clarification.I noticed that there was an EtherChannel between two switches—let's call them Switch A and Switch B. On Switch A, the EtherChannel was...
Hello,Until now, my network was on a single VLAN, VLAN 1. I recently segmented the network into several VLANs. I created a management VLAN (VLAN X) for my switchs (10 C2960X), and I put my servers in VLAN Y, and kept my workstations in VLAN 1 In my s...
I would want to know is there any specific command to fully know about an RJ 45 copper port to be given as an uplink / trunk port ? Will there be any issue or not with that particular interface port? Can we diagnose whether that specific interface i...
The flash has just under a GB free. Current OS is at 16.12.9. I've attempted to copy the 16.12.13 IOS bin file to flash through TFTP, SFTP, HTTP (in the WebGui), and even with the file management page in the gui. From two different PCs at this point,...
