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Invalid ARP

Let's say there is a client  router connected on switch port G1/0/6. But command on switch "show mac address table int G1/0/6" shows nothing. Also command "sh ip dhcp snooping binding int G1/0/6" also shows nothing. So i do not see routers mac or ip ...

eXPlosion by Beginner
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nexus 1000v vem absent

I have a esxi host that I took out of a cluster and added back in. After adding back inm I am not able to see the host in the n1kv switch sh mod vem mapping says its absent I tried restarting the vem on the host and unloading but got the error # vem ...

Dragomir by Beginner
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Cisco 1941 Router-on-a-Stick w/ 11VLANs trunked to a Cisco 2960: Can Ping a device in another VLAN, that device cannot ping back

Cisco 1941 Router-on-a-Stick w/ 11VLANs trunked to a Cisco 2960: From the Switch I can Ping a device in another VLAN, that device cannot ping back. Some devices can ping devices in other VLANs and the device in the other VLAN can successfully return ...

Nexus 5500 - FEX dual-homed - HSRP

GentlemenI'm facing some doubts regarding a project I'm responsible. We have 4 nexus 5596UP and 4 FEX. Each pair of Nexus are located in different datacenter. Each pair of Nexus in the same datacenter is connected to 2 FEX in a dual-homed way. Each N...

vty log spamming

Hello,Have anyone encountered this message being spammed in the loggs? Aug  8 09:37:36: %SYS-5-CONFIG_I: Configured from console by vty0Aug  8 09:38:28: %SYS-5-CONFIG_I: Configured from console by vty0Aug  8 09:39:18: %SYS-5-CONFIG_I: Configured from...

4900M switch config

Hi, I need your help. I am trying to purchase 2 4900M switches for our DC but I'm a little stymied by the part 4900M-X2-CVR.How many do I need (if any at all)? Config is as below: Please help.Part NumberDescriptionQtyWS-C4900MBase system with 8 X2 po...

Resolved! Add Vlan access

I was able to do this before but forgot what the command is to do it.I don't make changes to the switches often so I forget the commands I dont use regularly.We have a catalyst 4500 Level 3 switch as our main switch. It has all the vlans and everythi...

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