Hello,I would like to be able to use a primary link and a backup link on two switches (SW1 and SW3) that are not stacked.Both switches have a LAG with a trunk between them. It has multiple VLANs.If the primary link fails, traffic must be directed to ...
Hi.We test the Nexus as daisy chain.but When we attach the port to port in the same module, We got the following log :"%STP-2-DISPUTE_DETECTED"I had searched the log on CCO, but I can't find exactly what mean is.If you know the log, Please let me kno...
Hey guys! I hope you can help me.We are updating some switches, Catalyst 9200 and 9300, to the software release 17.6.4. (DNA and Network Essential).Everything works as expected but we are getting some curious syslog warning messages. %SISF-4-ENTRY_BL...
Hello everybody, we are currently testing Softwareversion 17.06.3 and see log messages on the switch from "Switch Integrated Security Features (SISF)". I guess those messages are related to device-tracking or dhcp snooping. %SISF-4-ENTRY_BLOCKED: Ent...
HiI have had a number of switches come up with a "Smart Install Remote Code Execution Vulnerability" The solutionI have read on this from Cisco is to apply "No vStack" command in global configuration. however I am worried this will break the stack co...
Buenas noches amigos,Un apoyo con este resultado extraño de NETFLOW.Comparto la topología. Nube <--->(Gi0/0/0) CISCO_ABR (Gi0/0/1)<-->LANGi0/0/0(WAN)ip flow ingressGi0/0/1(LAN)ip flow ingressDesde la nube(IP: 192.15.2.228) intentan consumir una págin...
I have broken a 2 switch stack and now they are two individual units. But switch 2 still appears to be a switch 2 with interfaces Gi2/0/xx. If I use the no switch 2 provision ws-c3850-24p command, I get "Error: A switch is already physically presen...
In the GUI under dhcp options I enter the code "3" but a get an error that says Selected option cannot be configured by user.Its a Cisco Business 350 switch
Hi every body!I have this question.Let say three switches, sw1,sw2 and sw3 are connected in traingle, with switch sw1 as a root bridge.Sw2 for some reason, stops receiving bpdu on its root port for more than 20 seconds.1) what would happen to root po...
guys i need the image of the ME 3400EG-2CS-A Switch i ended up giving erase flash in the equipment and deleted the bot file of the equipment, and needed to recover
hi everybodyDoes any body know how one can view the contents of vlan.dat? is there any command to do that ?thanks and have a nice day !
I am needing to get memory information (non-volatile and volatile memory) and sanitization procedures for the following two items. Where could I get a Letter of Volatility also? SwitchCiscoCatalyst WS 2950-24SwitchCisco4506SwitchCisco3750-XSwitchCisc...
Hi, just a small question: We want to buy two Cisco 9400 7 Slot Chassis and build up a StackWise Virtual. Cisco recommends to put in one SUP-1XL supervisor module per Chassis. If I am right, then when one modules fails, the whole chassis is down,...
Found several Cisco security Vulnerabilities and addressing, my version IOS XE c9300 enterprise switches is affected. However, I need clarification on the Cisco security advisories, the output says #router but does not necessarily mention the switch ...
Hi,I have two sites , collapsed core between sites there is layer 3 connection also between edge and core also layer 3 in site one there is 25 edge switces and site 2 10 edge switches in site-1 nodes are classified like below computersstaff (HR, f...
