Enabling Support for Tunable DWDM-XFP-C

The dense wavelength-division multiplexing (DWDM) wavelengths of the DWDM-XFP-C module on the Cisco ASR 900 Series router is tunable. You can configure the DWDM ITU wavelengths using the itu channel command in the interface configuration mode. The itu channel command ensures that the traffic continues to flow.

Table 1 contains the wavelength mapping information for the DWDM-XFP-C module.

Table 1. DWDM-XFP-C Wavelength Mapping

Channel no

wavelength [nm]

Frequency [THz]

1

1561.79

191.95

2

1561.46

192

3

1560.98

192.05

4

1560.65

192.1

5

1560.17

192.15

6

1559.83

192.2

7

1559.35

192.25

8

1559.02

192.3

9

1558.54

192.35

10

1558.21

192.4

11

1557.73

192.45

12

1557.4

192.5

13

1556.92

192.55

14

1556.59

192.6

15

1556.11

192.65

16

1555.79

192.7

17

1555.31

192.75

18

1554.98

192.8

19

1554.4

192.85

20

1554.17

192.9

21

1553.7

192.95

22

1553.37

193

23

1552.89

193.05

24

1552.57

193.1

25

1552.09

193.15

26

1551.76

193.2

27

1551.28

193.25

28

1550.96

193.3

29

1550.48

193.35

30

1550.16

193.4

31

1549.68

193.45

32

1549.35

193.5

33

1548.88

193.55

34

1548.55

193.6

35

1548.08

193.65

36

1548.75

193.7

37

1546.95

193.75

38

1546.95

193.8

39

1546.48

193.85

40

1546.16

193.9

41

1545.69

193.95

42

1545.36

194

43

1544.89

194.05

44

1544.56

194.1

45

1544.09

194.15

46

1543.77

194.2

47

1543.3

194.25

48

1542.97

194.3

49

1542.5

194.35

50

1542.18

194.4

51

1541.71

194.45

52

1541.39

194.5

53

1540.92

194.55

54

1540.6

194.6

55

1540.13

194.65

56

1539.8

194.7

57

1539.34

194.75

58

1539.01

194.8

59

1538.55

194.85

60

1538.22

194.9

61

1537.76

194.95

62

1537.43

195

63

1536.97

195.05

64

1536.65

195.1

65

1536.18

195.15

66

1535.86

195.2

67

1535.396

195.25

68

1535.07

195.3

69

1534.61

195.35

70

1534.29

195.4

71

1533.82

195.45

72

1533.5

195.5

73

1533.04

195.55

74

1532.72

195.6

75

1532.26

195.65

76

1531.94

195.7

77

1531.48

195.75

78

1531.14

195.8

79

1530.69

195.85

80

1530.37

195.9

81

1529.91

195.95

82

1529.59

196

Configuring the DWDM-XFP-C Module

Perform the following procedure to configure the DWDM-XFP-C module.

Procedure

  Command or Action Purpose

Step 1

enable

Example:


Router# enable

Enables the privileged EXEC mode. If prompted, enter your password.

Step 2

configure terminal

Example:


Router# configure terminal

Enters the global configuration mode.

Step 3

interface tengigabitethernet slot/port

Example:

Router(config)# interface tengigabitethernet 0/3

Specifies the 10-Gigabit Ethernet interface to be configured.

  • slot/port—Specifies the location of the interface.

Step 4

itu channel number

Example:


Router(config-if)# itu channel 28

Sets the ITU channel.

  • number —Specifies the ITU channel number. The acceptable values are from 1–82.

Verifying the ITU Configuration

The following example shows how to use the show hw-module subslot command to check an ITU configuration: 


Router# show hw-module subslot 0/2 transceiver 0 idprom dump
Description = XFP optics (type 6)
Transceiver Type: = TUNABLE DWDM XFP (194)
Product Identifier (PID) = DWDM-XFP-C
Frequency Set for Tunable DWDM = 195.5 THz
Vendor Revision = 00
Serial Number (SN) = JFX1617800W
Vendor Name = CISCO-JDSU
Vendor OUI (IEEE company ID) = 00.01.9C (412)
CLEI code = IP9IAGGCAB
Cisco part number = 10-2544-02
Device State = Disabled.
XFP IDPROM Page 0x0:
000: 0C 00 49 00 F8 00 46 00 FB 00
010: 00 00 00 00 00 00 00 00 A6 04
020: 09 C4 8C A0 13 88 9B 83 13 93
030: 62 1F 1F 07 0F 8D 00 0A 09 CF
040: 00 10 00 18 FF E8 00 0C FF F4
050: 00 00 00 00 00 00 00 00 00 00
060: 00 BF 25 1C 00 C4 00 00 01 F4
070: 00 00 00 00 00 00 00 00 00 00
080: 00 00 00 00 9E 20 00 00 00 00
090: 00 00 00 00 00 00 1E 7C 00 00
100: 00 00 00 01 00 00 00 00 00 00
110: E2 98 00 14 00 00 00 00 00 00 <<See byte 113, the hexa decimal
equivalent for ITU channel 20>>
120: 00 00 00 00 00 00 00 01
XFP IDPROM Page 0x1:
128: 0C 98 07 00 00 00 00 00 00 00
138: 08 B4 63 71 50 00 00 00 00 9F
148: 43 49 53 43 4F 2D 4A 44 53