Switching

Hello,I know if MD5 authentication is not enabled then HSRP is vulnerable to a takeover attack. However, I am struggling to understand how MD5 prevents this. Perhaps someone more knowledgeable can correct any of my mistakes, but as I understand:The s...

Hi Dears I am connecting Huawei switch with Cisco nexus9k switch. When I enable vbst stp mode in Huawei switch then traffic seems not working. When I run mstp in Huawei switch then it's working. Cisco is running pvst in  both scenarios.  I am wonderi...

I have DOT1X set up on our C9300 access ports with a MAB backup. The network policy is to authenticate with the computer name and the certificate. If I turn the computer on I get the following error:DOT1X-5 FAIL: Switch 1 R0/0: sessmgrd: Authenticati...

I have several tabs open to several switches and routers in the WebUI.  I'm using the troubleshooting tab to create a few PCAP files.  The issue occurs in both chrome or firefox, so I dont think it's a browser issues specifically, but some of the tim...

I want to know for a new project if there are 100 data points for a rack while considering,then how many buffer we should put in normal case that is addtional data points for switches to consider? What is the normal ratio for buffering?

hi guys.I have a network with a 3750 switch and two D-Link hubs.I have a Windows 10 virtual machine that is supposed to get an IP switch via DHCP. During the IP acquisition phase of the virtual machine, the virtual machine gets an IP but immediately ...

Hi All,I recently bought an EOL 3560CG 8 port POE switch from a 3rd party vendor and wanted to upgrade it to the latest version that the switch will run, but it's no longer available on the offical download page.  As well as functionality, one of the...

I have read at least 6 links on Cisco Systems to try and really understand the difference between UDLD Enable and UDLD Aggressive. The more I read the more I am confused. My final understanding is as follows and I wish someone to correct me if my und...

Dear Team,   I have Cisco C9500 switch.and i have configured VRF in the switch and netlfow and syslog server.   but server and syslog server side not received any logs and flow. but i am able to ping syslog and sever ip. i configured below but not ge...

Is it possible to set automatic QoS for voice traffic on the switch? [VPN]----------[C1300]---------[VoIP Phone]---------[PC] VLAN1 : 192.168.0.0 -VPN : 192.168.0.1 -VoIP Phone(Avaya) : 192.168.0.2 -PC : 192.168.0.3   [Switch QoS Config] qos trust co...

Avaya SR2330 router configuration.Public ip -192.168.212.17 255.255.255.252Lan ip-10.10.81.1 255.255.255.0Router 0.0.0.0/0 192.168.212.18Any body help me with this configuration 

Hello everyone, I'm Namrata Hinduja Geneva, Switzerland and working with complex switch logic and need help with debugging techniques. What are the best practices for using logs or Cisco's equivalent of a "Stop & Debug" tool to trace and troubleshoot...