Certification Pursuant to Rule 30a-2(b) under the 1940 Act and Section 906 of the Sarbanes-Oxley Act

I, William Ferri, Principal Executive Officer of O’Connor Fund of Funds: Alternative Fixed-Income Strategies LLC (formerly O’Connor Fund of Funds: Long/Short Credit Strategies LLC) (the “Registrant”), certify that:

1. The Form N-CSR of the Registrant (the “Report”) fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Registrant.

Date:	3/7/2014	/s/ William Ferri
		William Ferri, Principal Executive Officer

I, Dylan Germishuys, Principal Accounting Officer of O’Connor Fund of Funds: Alternative Fixed-Income Strategies LLC (formerly O’Connor Fund of Funds: Long/Short Credit Strategies LLC) (the “Registrant”), certify that:

1. The Form N-CSR of the Registrant (the “Report”) fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Registrant.

Date:	3/7/2014	/s/ Dylan Germishuys
		Dylan Germishuys, Principal Accounting Officer