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1. CIRCUIT SPECIFICATIONS: MINIMUM TECHNICAL SPECIFICATIONS: SPECIFIC FORMAT TO BE USED IS: LINE RATE: 2.5GB. LINE CODE: NRZ FRAME FORMAT: SCRAMBLED IAW ANSI T1.104-1991 (R2003)

2. TEST AND ACCEPTANCE: FIBER OPTIC 2.5GB WAVE CIRCUITS SHALL PASS A FULLY DOCUMENTED SATISFACTORY SOAK TEST BY THE CONUS GNOSC AT SCOTT AFB, IL. PRIMARY: (C) 618-418-8691 (D) 418-8691

3. THE WAVELENGTH TRANSMISSION SERVICE PROVIDED SHALL MEET THE FOLLOWING PERFORMANCE REQUIREMENTS ON A MONTHLY BASIS. PERFORMANCE REQUIREMENT/PERFORMANCE SPECIFICATION:

NON-DIVERSE/NON-PROTECTED

AVAILABILITY: GREATER THAN OR EQUAL TO 99.5% OR BETTER.

MONTHLY SHORT INTERRUPTION EVENT COUNT (SEIC):

LESS THAN OR EQUAL TO 9

% ERRORED SECONDS (ES): LESS THAN OR EQUAL TO 0.005

% SEVERELY ERRORED SECONDS (SES): LESS THAN OR

EQUAL TO 0.00035

BACKGROUND BLOCK ERROR RATIO (BBER): LESS THAN

OR EQUAL TO 5 X 10-6

BIT COUNT INTEGRITY (BCI)/PATTERN SLIP (PAT SLIP):

LESS THAN OR EQUAL TO 1 PER 72 HOURS

JITTER SEE NOTE 1 (JITTER)

BER: LESS THAN OR EQUAL TO 1X10-12

DELAY (ONE WAY): * LESSER OF 10 MSEC OR

(0.01 X D MSEC) * WHERE "D" IS THE SDP TO SDP

TRANSMISSION DISTANCE, MEASURED SHORTEST GREAT

CIRCLE, IN KILOMETERS.

4. THE ROUND TRIP DELAY (RTD) FOR THIS DISA TRANSPORT TRUNK WILL BE MEASURED IN MILLISECONDS FROM THE CUSTOMERS SERVICE DELIVERY POINT (SDP) SITE-A TO THE CUSTOMERS SERVICE DELIVERY POINT (SDP) SITE-Z. THE RTD SHALL BE LESS THAN OR EQUAL TO 28 MILLISECONDS TO EFFECTIVELY SUPPORT THE GOVERNMENT'S MISSION. THE GOVERNMENT RESERVES THE RIGHT TO ACCEPT A HIGHER RTD ONLY IF SUPPORTED BY ACTUAL PHYSICAL FIBER DISTANCE BETWEEN THE TWO END LOCATIONS. ADDITIONALLY THE GOVERNMENT RESERVES THE RIGHT TO REJECT A PROPOSED PATH IF DEEMED EXCESSIVELY LONG WITHOUT WRITTEN JUSTIFICATION IN THE PROPOSAL. JUSTIFICATION FOR EXCESSIVE FIBER MILEAGE COULD BE DIVERSITY/AVOIDANCE REQUIREMENTS, LIMITED INFRASTRUCTURE, AVAILABLE PROVIDERS, GEOGRAPHIC AND PHYSICAL LIMITATION. THE GOVERNMENT ACCEPTING AUTHORITY WILL CONFIRM THE RTD DURING THE TURN-UP AND TEST PHASE AND IF IT DOES NOT ALIGN WITH THE CONTRACTORS PROPOSAL DISA IE161 WILL NOTIFY DITCO IMMEDIATELY IN WRITING.

CONUS NO JUMBO FRAME ETHERNET VENDOR WILL PERFORM ACCEPTANCE TESTING IN ACCORDANCE WITH EITHER RFC-6815 OR ITU-T Y.1564. VENDOR MUST TEST THE CIRCUIT FOR 24 HOURS IAW ITU-T.Y.1564 SPECIFICALLY, FRAME SIZES OF 64,128,256,512,1024,1280 AND 1518 BYTES MUST BE USED. THE TEST MUST VERIFY LENGTH OF RECEIVED FRAMES, INDICATE NUMBER OF FRAMES DROPPED, NUMBER OF FRAMES RECEIVED OUT OF ORDER, AND DUPLICATE FRAMES. TESTS MUST BE BI-DIRECTIONAL USING THE SAME DATA RATE IN EACH DIRECTION. BURST TESTS MUST BE RUN TO DETERMINE MINIMUM INTERVAL BETWEEN FRAMES THAT CAN BE PROCESSED WITHOUT FRAME LOSS. A THROUGHPUT TEST IS REQUIRED INDICATING THE FASTEST RATE AT WHICH TEST FRAMES CAN BE TRANSMITTED WITHOUT FRAME LOSS. A SEPARATE THROUGHPUT TEST MUST BE RUN WITH FRAMES ADDRESSED TO THE HARDWARE BROADCAST ADDRESS CONSTITUTING AT LEAST 1% OF THE TEST STREAM AND BE EVENLY DISTRIBUTED THROUGHOUT THE TEST. A LATENCY TEST MUST BE RUN FOR A PERIOD OF NO LESS THAN 120 SECONDS, AND REPEATED NO LESS THAT 20 TIMES. THE TEST STREAM FOR THE LATENCY TEST SHOULD BE RUN AT THE THROUGHPUT RATE FOR CORRESPONDING FRAME SIZES FROM THE THROUGHPUT TEST. END TO END LATENCY WILL BE CALCULATED AS THE AVERAGE OVER THE 20 TEST RUNS. FRAME LOSS RATE TESTS SHOULD BE RUN AT THE FRAME RATE CORRESPONDING TO THE MAXIMUM FRAME RATE, AND REDUCED BY 10% INTERVALS UNTIL THERE ARE AT LEAST TWO CONSECUTIVE RUNS IN WHICH NO FRAMES ARE LOST. THROUGHPUT TEST RESULTS: PASSING RATE 100% FOR ALL FRAME BYTE SIZES EXERCISED. FRAME LOSS RATE (%) RESULTS: FRAME LOSS RATE LESS THAN 0.01% FOR ALL FRAME BYTE SIZES EXERCISED. LATENCY WILL BE MEASURED WILL BE ACCORDING TO THE FOLLOWING MAXIMUM TRANSMISSION DELAY FOR ANY CIRCUIT UP TO 500 MILES AIR-MILES IN LENGTH SHALL BE NO GREATER THAN 13MS ONE-WAY AND ANY POINT-TO-POINT CIRCUIT LONGER THAN 500 AIR-MILES SHALL BE NO GREATER THAN 50MS ONE WAY WITHIN THE 48 CONTINENTAL STATES. ANY APS SWITCHOVER SHALL TAKE LESS THAN 50 MILLISECONDS MONTHLY AVAILABILITY SHALL BE NO LESS THAN 99.5%.

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