-"""
-Links in the physical topology, gleaned from looking at the Internet2
-and NLR topology maps. Link (a, b) connects sites with IDs a and b.
-"""
-links = [(2, 12), # I2 Princeton - New York
- (4, 5), # NLR Chicago - Houston
- (4, 6), # NLR Chicago - Atlanta
- (4, 7), # NLR Chicago - Seattle
- (4, 9), # NLR Chicago - New York
- (4, 10), # NLR Chicago - Wash DC
- (5, 6), # NLR Houston - Atlanta
- (5, 8), # NLR Houston - Los Angeles
- (6, 10), # NLR Atlanta - Wash DC
- (7, 8), # NLR Seattle - Los Angeles
- (9, 10), # NLR New York - Wash DC
- (11, 13), # I2 Chicago - Wash DC
- (11, 15), # I2 Chicago - Atlanta
- (11, 16), # I2 Chicago - CESNET
- (11, 17), # I2 Chicago - Kansas City
- (12, 13), # I2 New York - Wash DC
- (13, 15), # I2 Wash DC - Atlanta
- (15, 19), # I2 Atlanta - Houston
- (17, 19), # I2 Kansas City - Houston
- (17, 22), # I2 Kansas City - Salt Lake City
- (19, 20), # I2 Houston - Los Angeles
- (20, 21), # I2 Los Angeles - Seattle
- (20, 22), # I2 Los Angeles - Salt Lake City
- (21, 22)] # I2 Seattle - Salt Lake City