Hello,
I currently have a network consisting of a Cisco 4510r-e switch and a number of Cisco 3750G POE Switches ties together via fiber.
IOS versions:
4510R-E - 15.0(2)SG7
3750G - 12.2(35)SE5
For stand alone testing:
3750G - IOS 15.0(2)SE2
NVT POLRE 8 Port Extender
What's happening is when I connect the POLRE to my 4510 switch on any port I experience tremendous packet loss when attempting to communicate with any device plugged into the POLRE. I experience the same loss when the POLRE is connected to any port on my 3750G switches. With the same port configuration I have tested the POLRE on a stand alone 3750 switch and everything works fine. It also works fine if I connect the POLRE to an unmanaged switch. However, as soon as I plug the stand alone 3570 with the POLRE connected into any of my switch open ports, I drop packets again. This is not a IP issue and I have an extremely simply network configuration running a single VLAN on a /28 IP routed network (255.255.240.0). I have tried turning the inline power off and cdp in the port configuration to no avail. NVT is at a loss and I don't have a current Cisco support contract.
Any suggestions would be greatly appreciated.
I currently have a network consisting of a Cisco 4510r-e switch and a number of Cisco 3750G POE Switches ties together via fiber.
IOS versions:
4510R-E - 15.0(2)SG7
3750G - 12.2(35)SE5
For stand alone testing:
3750G - IOS 15.0(2)SE2
NVT POLRE 8 Port Extender
What's happening is when I connect the POLRE to my 4510 switch on any port I experience tremendous packet loss when attempting to communicate with any device plugged into the POLRE. I experience the same loss when the POLRE is connected to any port on my 3750G switches. With the same port configuration I have tested the POLRE on a stand alone 3750 switch and everything works fine. It also works fine if I connect the POLRE to an unmanaged switch. However, as soon as I plug the stand alone 3570 with the POLRE connected into any of my switch open ports, I drop packets again. This is not a IP issue and I have an extremely simply network configuration running a single VLAN on a /28 IP routed network (255.255.240.0). I have tried turning the inline power off and cdp in the port configuration to no avail. NVT is at a loss and I don't have a current Cisco support contract.
Any suggestions would be greatly appreciated.