Hello,how can I monitor Interfaces and VLANs in one Monitor Session?Problem is, that this monitored traffic needs to be send to ONE single destination port, what is not allowed to do with 2 seperate monitor sessions.So my general problem is:port 1 ne...
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We have a Cisco Catalyst 4510R+E Switch and we want to install 10 Gigabit Ethernet port slots on it. We want to know that how many number of slots can de added to the switch with maximum number of 10 Gigabit Ethernet ports per slot. And what can be t...
Hello I have a switch 2960S with IOS universalk9-mz.150-2.SE11 and I need to upgrade to the last version... I know this device is EOL. Right now the recommend version is universalk9-mz.152-2.E9.bin so I would like to know what difference there is bet...
I have cisco ie2000 16ptc-g-e and i delete all files from flash: please help me what to do now
Hi, I have this switch 3850 that does not boot, I tried to boot from usb and initialize with the same error. Also the flash is not recognized. Do you have aniy idea to recover this switch form boot process?
Hi Switch have some week ciphers. From the below commands, we can know which cipher are available, but I am not sure which one is stronger. How can we know these ciphers? and second question is at the blow command, can we think the first one aes192-c...
I have a couple of N9K-C93108TC-EX switches seeing about half of the packets coming from a server being errors. I can't find any detailed counters showing what the error is. Where should I be looking? Thanks. switch# sh int e 1/8Ethernet1/8 is upad...
Resolved! Multicast layer 2 flooding and cdp/vtp
Hi AllSomeone knows why Cisco switchs doesn't flood cdp/vtp packets on entire broadcast domain ?In my understanding a switch should perform flooding of Multicast packets out all port but with cdp/vtp packet it doesn't happen.Logically it is correct b...
Hello Community,I'm struggling right now with my Cisco C898EA-K9 switch. I would like do create some Sub interfaces on my Gigabit Ethernet port 0 but the switch do not recognize the corresponding command which is proposed by the switch it self. Does ...
Hello,About 18 months ago, we stopped using VTP and switched to assigning 'allowed VLAN' to individual interfaces. Everything has been working well. At that time, the contractor had me turn off VTP on the core switch (default gateway) and leave VTP...
We name VLANs and then assign them to trunks with 'allowed VLAN'. This seems to work. On occasion, a client on a different VLAN than the DHCP server does not obtain an IP address. So, I tried to create a VLAN interface for a named VLAN and added an i...
I have a cisco sfp (SFP-10G-SR) and i need to connect it to a DELL sfp (SFP-10G-SR) part number is WTRD1. are they compatible with each other? the dell sfp has the attached info
Hi guys, We got this:We want to understand when the switch marks MAC "flap"? Is there some sort of timer? It s normal for the MAC address to be learned on one port and then another, but I get it's when MAC moves very quickly back switch generates th...
My cisco cat 2960-S keeps on rebooting.can anyone help how to troubleshoot/ or what is the possible cause of this?Thanks
The switches are connected by an optical patch cord. When transmitting data, errors increase on port 4912. Setting the speed and duplex on auto-negotiation or without auto-negotiation - the result is the same. The same cisco 2960S in conjunction with...
