We all must have the same problems. If you want to upgrade to 10Gb networking on the cheap, we have some advice. Just be careful not to scrimp on the cables.

10GbE works only in full-duplex mode and does not support CSMA/CD, the common Ethernet collision method used to gain access to the physical medium. A "WAN interface sublayer" (WIS) makes 10GbE ...

The Ethernet PCS IP supports 10G and 25G line rates, however other Ethernet PCS speeds are available, such as 1G/2.5G and 100G. The PCS IP provides an interface between the Media Access Control (MAC) ...

Comcores Ethernet MAC 10G/25G IP solution enables the host to communicate data using the IEEE 802.3 standard for the respective speeds and is suited for use in networking equipment such as switches ...