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Webcast-Catalyst9k
New Member

connectivity loss

Hi 

 

There are some projectors  it shows connected but when i ping i cant reach 

I tried extended ping from  the same vlan , no success .

i tried to ping broadcast address no success.

it works only when do a port shut or no shut 

What could be the problem 

 

Please help 

Thank you 

2 REPLIES
Cisco Employee

Hi, First check in which

Hi,

 

First check in which direction ping is failing. Debug ip packet or debug icmp on both side can help you little bit or after initiating ping of 1000 packet with timeout 0 , you can check interface counters both sides to check direction of packet drop. Also check if ARP entry available both sides or not. 

 

Regards,

Akash

New Member

 Hi AkashThe projector

 

Hi Akash

The projector connected on a layer 3650x which is connected to the distribution switch using trunk .

Actually i  am not following   that " you can check interface counters both sides to check direction of packet drop."   Please kindly explain 

I checked the arp entry on distribution side , i did not find anything . The arp entry available only after shut or no shut on the interface . 

Does a faulty cable can be the cause of the problem ? 

 

Thank you 

 

 

 

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