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Have you checked the servers if there is something which is letting them to disconnect?<br />
<br />
In the server device manager check the network card power management and make sure that it is not set to save power while idle.<br />
<br />
Thanks,<br />
Sudeep
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Have you checked the servers if there is something which is letting them to disconnect?

In the server device manager check the network card power management and make sure that it is not set to save power while idle.

Thanks,
Sudeep

<div>
Look at power management settings for the NICs. Sounds like they are being allowed to get powered down to save energy. The switches have nothing to do with your issue.<br />
<br />
You might want to check your workstations also. While not a part of this issue, might as well avoid additional issues if you can.
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Look at power management settings for the NICs. Sounds like they are being allowed to get powered down to save energy. The switches have nothing to do with your issue.

You might want to check your workstations also. While not a part of this issue, might as well avoid additional issues if you can.

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<div class="content wysiwyg-content">
Hello all, <br />
<br />
<br />
I have 2 Cisco 6500 switches . They are connected together through an etherchannel and are passing all vlans to each other. <br />
<br />
Also i have an HPE 5900 switch which is connected to one of these 2 cisco switches with a trunk port. All vlans and routing are on the cisco devices. VLAN on HP are with no svi so everything is routed through Cisco . <br />
<br />
So, i have some server behind cisco 5900 and sometimes i lose connectivity from my pc(connected to cisco) . If i send them a ping then suddenly connectivity restored. <br />
<br />
Any ideas what is happening ? Thanks a lot
</div>
</div>


Hello all, 


I have 2 Cisco 6500 switches . They are connected together through an etherchannel and are passing all vlans to each other. 

Also i have an HPE 5900 switch which is connected to one of these 2 cisco switches with a trunk port. All vlans and routing are on the cisco devices. VLAN on HP are with no svi so everything is routed through Cisco . 

So, i have some server behind cisco 5900 and sometimes i lose connectivity from my pc(connected to cisco) . If i send them a ping then suddenly connectivity restored. 

Any ideas what is happening ? Thanks a lot

Losing connectivity from some servers - Restore connectivity if i ping them

Cisco PIX is a dedicated hardware firewall appliance; the Cisco Adaptive Security Appliance (ASA) is a firewall and anti-malware security appliance that provides unified threat management and protection the PIX does not. Other Cisco devices and systems include routers, switches, storage networking, wireless and the software and hardware for PIX Firewall Manager (PFM), PIX Device Manager (PDM) and Adaptive Security Device Manager (ASDM).

Cisco

vlans

A switch is a device that filters and forwards packets of data between LAN segments. Switches operate at the data link layer or the network layer of the Open Systems Interconnection (OSI) Reference Model and therefore support any packet protocol. LANs that use switches to join segments are called switched LANs or, in the case of Ethernet networks, switched Ethernet LANs. A hub is a connection point for devices in a network. Hubs are commonly used to connect segments of a LAN. A hub contains multiple ports; when a packet arrives at one port, it is copied to the other ports so that all segments of the LAN can see all packets.