Cisco Systems Inc. next week will show off its long-awaited advancement in router technology and make the case that it has returned to networking's cutting edge, a place where Cisco has been challenged of late.

According to sources familiar with the announcement, set for Tuesday morning at the Computer History Museum in Mountain View, Calif., Cisco will finally unveil the next-generation gear, code-named HFR, or "Huge Fast Router." The HFR equipment is due for a more expansive demonstration at the Supercomm exhibition in Chicago next month, the sources said.

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