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We are seeing random high memory utilisation spikes on our Cisco 9200L switches, running version 17.9.4a. We thought this might be related to the application visibility that is pushed out to them via Cisco Catalyst Centre, so we disabled application ...

The VLANIF of the core switch acts as the gateway for client. The Client is unable to obtain the gateway IP, but by manually adding ARP, it can communicate with the gateway. The core switch has the correct MAC and ARP information for the client, a...

Translator by Community Manager
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  • 4 replies
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Hi thereI am assigned to check the issues with this attached network and have managed to remove some hups and redesign the network to what it is now. there were no vlans and it has been configured. the issue is that the internet speed is extremely sl...

Hi All,I came across a strange issue today. I have a C9300-48S-A Switch but the show version output of the switch shows that the switch has an Essentials license on it.Below snap for quick ref: Is this an error from Cisco or have I missed something?A...

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Ranjita by Level 1
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  • 2 replies
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Resolved! Lan Switching

Hello,As per the below diagram I have two switches S1 & S2. Hosts H1 & H2 are connected to the switches and are in different vlan but same subnet. So, by default they will not communicate as they are in two different broadcast domain.To make them com...

SupritChinchodikar_0-1712901586703.png

Greetings!So I was practicing to configure VTP and VLANs. For a start, I created 3 switches (only 2 being turned on). The trunks are working fine as the switches are able to acquire an IP addresses via dhcp from a dedicated router and vtp appears to ...

vlans.png
turtle666 by Level 1
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  • 8 replies
  • 0 Helpful votes

I just created a vlan, assigned it to a port on our 6509, assigned the vlan an ip address and when i shoot the command, show int vlan 31 it says that the vlan is administratively down. I can't figure out whats going on here? i issued a no shut, to no...