Configuration Commands
Page 280 7750 SR OS Interface Configuration Guide
channel
Syntax channel channel
Context config>port>dwdm
Description • This command configures the Dense Wavelength Division Multiplexing (DWDM) ITU channel
at which a tunable MDA optical interface will be configured to operate. It is expressed in a form
that is derived from the laser's operational frequency. For example 193.40 THz corresponds to
DWDM ITU channel 34 in the 100 GHz grid and 193.45 THz corresponds to DWDM ITU
channel 345 in the 50 GHz grid.Provisioning rules:The provisioned MDA type must have
DWDM tunable optics (m1-10gb-dwdm-tun)
• The 'dwdm channel' must set to a non zero value before the port is set to 'no shutdown'
• The port must be 'shutdown' before changing the dwdm channel.
• The port must be a physical port to set the dwdm channel
Parameters channel — Specifies the channel.
Values 0, 17-61, 175-605]
where: 17-61 is used for 100GHz channels
175, 185 — 605 is used for 50GHz channels
0 only valid on disabled (shutdown) ports
The DWDM channel number range is listed in the following table.
Table 29: DWDM Channel Numbers
C-Band
100 GHz Grid 50GHz Grid
nm THz ITU
Channel
nm THz ITU
Channel
1528.77 196.10 61 1529.16 196.05 605
1529.55 196.00 60 1529.94 195.95 595
1530.33 195.90 59 1530.72 195.85 585
1531.12 195.80 58 1531.51 195.75 575
1531.90 195.70 57 1532.29 195.65 565
1532.68 195.60 56 1533.07 195.55 555
1533.47 195.50 55 1533.86 195.45 545
1534.25 195.40 54 1534.64 195.35 535
1535.04 195.30 53 1535.43 195.25 525
1535.82 195.20 52 1536.22 195.15 515
1536.61 195.10 51 1537.00 195.05 505
1537.40 195.00 50 1537.79 194.95 495
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