Switching

Dear Experts,  One of my customer wants 24 port 10GBaseT ports and 24 10G SFP+ ports in one single switch. I did my best to find out and i think 9504 is the only option available but that might be overkill for their requirement. They need it for ToR ...

Hello,Looking for some advice on how to trace alleged latency on our core network.Network comprises 2x C6509 with Sup720's, approx 50 VLAN's - the 6509's configured in HSRP for each VLAN.A particular VLAN which uses a specialised application brought ...

Dear All, I am running an N9k environment with BGP EVPN with VXLAN. Everything is working as expected and MTU sizes are set to 9216 everywhere (via a system level network-qos policy). Is there any reason why hosts couldn't be connected to this switch...

Hi Cisco community teamI have a situation where the Application teams wants to replace the perimeter firewall with Azure Firewall claiming that they function similarly. This firewall will terminate VPN tunnels for employees coming from the internet i...

Hi all,   Wonder if anyone has come across this.  I noticed sda1 drive errors in my log and am trying to run FSCK but I get the following errors.  Anyone know how I can find what is keeping bootflash busy?  This has worked on identical 4331's in our ...

The Meraki 225 obtained an IP address and I can see its arp entry on the Internet facing Cisco router. The MAC in the arp table maches the mac in the Meraki cloud UI but it's not registering. I see NAT translations to the InternetAlso show cdp neighb...

I'm having problems in DHCP relay with SX550. I followed this guide:https://www.cisco.com/c/en/us/support/docs/smb/switches/cisco-small-business-300-series-managed-switches/smb5567-configure-dynamic-host-configuration-protocol-dhcp-relay-set.htmlBut ...

Hello, Hope everybody fine.I'hv faced some problem about my Core Switch "Cisco WS-C6509-E". System image file is "sup-bootdisk:s72033-adventerprisek9_wan-mz.122-33.SXH3.bin  Supervisor Engine 720 10GE Before three days ago, suddenly my switch goes...

Hi Network Experts,  Need your help guys, I built a a new IPsec VPN Site-tosite tunnel between Vendor(IBM) Firewall and our company Firewall. VPN tunnel is up and all Phase 2 is up.  - I can ping from our server 10.192.61.166 to Vendor servers = 10.1...

Hello from Germany, packettracer worked verry fine for me on Ubuntu 18.04 - I worked with the 7.2.2 Version.But now after the hollydays packettracer dont't start anymore.I found that the download on your page has changed for the 7.2.2 from *.tar.gz f...

We have a Cisco 9300a switch that hands out self signed certs. Weird part is if I shut off ipv6 on work stations the error goes away. how do i disable the self signed cert on the switch?

Hello everyone!So I have a network with many switches and VLANs and everything is beautiful and cool except for this one switch (let's call it SW1) I can't telnet to from another VLAN, it doesn't even respond pings. Every switch here has an administr...

Hi Cisco Community   I will add 2 C9404R to  StackWise Virtual.I should sync Smart License (DNA) each device before adding to StackWise Virtual. Or can I completely add StackWise Virtual and sync Smart License later. Thanks

 Dear All, We are following the SLR method to smart license our 9500 devices which are in stack in SVL configuration ( Devices are already registered for SLR method ) process Link is :---> https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst_s...