Hi Is there any reason that will cause a 2960s switch in a stack to be turned off? This issue has repeated twice in the same switch and when we unplug/plug the power cord, the switch boots and works normally. Any ideas? ------------------ show versio...
Hi all, I have 5 switches installed via stacking and 7 to 8 VLANs running on to it, I now have to add another switch to the environment but via trunking, as this switch will only be used for just two VLANs, which is VLAN 10 and 11 I ha...
Hi All, Just asking your expertise about something. I have a Cisco 1812 and I want to have a NAT configuration do be implemented in the switch. Question: 1. Will the NAT configuration affect other configurations 2. Any conflict on the configurati...
HI all, I will have users using Amazon Connect Soft-phone Application and Polycom IP phone connected to the C3850 VLAN 21 (Amazon Connect Soft-phone Application) : 10.102.21.0/24 Traffics go thru ASA#1 10.10.10.2. If ASA#1 goes down, I want VLAN21 ...
Hello everyone, the 2960g switch has 20 electrical and 4 combo ( electrical or optical) ports. when I try to set the speed or the duplex option of combo ports, 3 of them( really wired !!) has the "speed" CLI command which just has "non-negotiable" op...
Hi everyone! I'm designing a ring ethernet network which has a main Ring(around 30 nods) and some other small rings which have one nod in common with the main ring. (See the attachment, please) My question is that is it possible to reach converg...
Hi all. I got a switch 2940 and plugged in my 2950 switch but it did not link the port did not signal. I have never had problems with cisco switches, here are the firmware versions for each. And strange not to link to the port the strange thing is th...
We had high CPU error , Cisco TAC said the reason of High CPU on this switch is because you have exceeded the limit of STP instances on this box. Please see the snippet below: uslv-mdf-pcnas03#Show spanning-tree summary Switch is in pvst mode Root ...
my old technology was working as l2 and we decided to change from L2 to L3 And we configure our ospf between Distribution to the core and after 3 days I lose the connectivity between the core, Distribution so I thought the issue is in the Distributio...
Hello everyone, I am a desktop support technician who is transitioning into a network administrator role in a growing company. Our company has multiple floors. Each floor has 4 to 5 vlans (data, voice, printer, corp wifi, guest wifi etc). Due to th...
I Must power off core switch 4510R+E when replace Supervisor slot ? or its normal during system on ?
I configure ospf l3 between core switch and distribution and after 3 days I lose the connectivity between the core, Distribution and access switch after I restart the Distribution the network become normal the configuration that have been done as lay...
Hello, Below is the general question, I can provide any sh command output. I have a router with several VLAN’s configured, and need to have a trunk from the router to a c4948 switch. With global and interface CEF enabled on the router layer 2 trunk...
Can the C9500-NM-8X module on a C9500-16X switch be used as access ports or is it exclusively for uplinks?
can anyone tell me please what is this warning about ? and how can i fix it ? the logging is full of these two messages? -%C4K_HWFLOWMAN-4-NFEFLINTERRUPT: (Suppressed 110399 times)NFE FL ipv6AddrCompTblMemCorrectedEccErr interrupt. rep[0]: 0xE000000...
