From Cisco IOS XR Release 7.0.2, the NC57-18DD-SE follows the following port mapping:
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Port number 0-17 (nine pairs) and 24-29 (three pairs): They together drive 400G mode. This means that if the top port is in
400G mode, the bottom port is unusable. These ports are retimer ports.
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Port number 18-23 (six ports): They are direct connected ports and are individually capable of 400G mode.
Note
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There’s a limitation for ports 0, 1 and 14, 15. You have to insert modules of similar speed (40G or 100G) into these pairs
of ports. For example, if you insert 40G module in port 0, then 40G module must be inserted in port 1.
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Note
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For 400G-only mode, the ports to be used are 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 19, 20, 21, 22, 23, 24, 26, and 28.
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For detailed information on port mapping and usage, see the figure NC57-18DD-SE Line Card in chapter NCS 5500 Series Modular Router Overview of Hardware Installation Guide for Cisco NCS 5500 Series Modular Routers guide.
To control the interfaces which are created, use the hw-module port-range mode
command with the following modes:
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40-100: This is the default port mode. Two ports are created in 100G mode by default. Online Insertion and Removal (OIR) to
40G creates the 40G port.
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400: The first port created is 400G. No port is created for the bottom port.
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2x100: For 2x100 mode. This supports QDD-2X100-LR4 optics.
Port range can be in the form of n to n+1. Example: 0,1 or 6,7. The port range is valid for ports 0-17 and 24-29. To configure
a port with 400G rate:
RP/0/RP0/CPU0:router(config)#hw-module port-range 0 1 location 0/3/CPU0 mode 400
RP/0/RP0/CPU0:router(config)#commit
Wed Feb 6 03:23:12.923 UTC
LC/0/3/CPU0:Feb 6 03:23:13.548 UTC: ifmgr[281]: %PKT_INFRA-LINK-3-UPDOWN : Interface HundredGigE0/3/0/1, changed state to Down
LC/0/3/CPU0:Feb 6 03:23:13.548 UTC: ifmgr[281]: %PKT_INFRA-LINK-3-UPDOWN : Interface HundredGigE0/3/0/0, changed state to Down
RP/0/RP0/CPU0:router(config)#end
RP/0/RP0/CPU0:router#show ipv4 int br location 0/3/CPU0
Wed Feb 6 03:26:07.935 UTC
Interface IP-Address Status Protocol Vrf-Name
FourHundredGigE0/3/0/0 unassigned Shutdown Down default
HundredGigE0/3/0/2 unassigned Shutdown Down default
HundredGigE0/3/0/3 unassigned Shutdown Down default
HundredGigE0/3/0/4 unassigned Shutdown Down default
HundredGigE0/3/0/5 unassigned Shutdown Down default
HundredGigE0/3/0/6 unassigned Shutdown Down default
To change a port mode:
RP/0/RP0/CPU0:router#conf
Thu Jan 9 05:13:02.853 UTC
RP/0/RP0/CPU0:router(config)#hw-module port-range 2 3 location 0/3/CPU0 mode 2x100
RP/0/RP0/CPU0:router(config)#commit
Thu Jan 9 05:13:11.411 UTC
LC/0/3/CPU0:Jan 9 05:13:11.469 UTC: optics_driver[196]: %PKT_INFRA-FM-3-FAULT_MAJOR : ALARM_MAJOR :PORTMODE SPEED MISMATCH :CLEAR :0/3/CPU0: Optics0/3/0/3
LC/0/3/CPU0:Jan 9 05:13:13.141 UTC: ifmgr[228]: %PKT_INFRA-LINK-3-UPDOWN : Interface HundredGigE0/3/0/3, changed state to Down
LC/0/3/CPU0:Jan 9 05:13:13.141 UTC: ifmgr[228]: %PKT_INFRA-LINK-3-UPDOWN : Interface HundredGigE0/3/0/2, changed state to Down
RP/0/RP0/CPU0:router(config)#end
RP/0/RP0/CPU0:router#show ipv4 int br location 0/3/CPU0
Thu Jan 9 05:13:24.245 UTC
Interface IP-Address Status Protocol Vrf-Name
FortyGigE0/3/0/28 unassigned Shutdown Down default
HundredGigE0/3/0/29 unassigned Shutdown Down default
HundredGigE0/3/0/2/0 unassigned Down Down default
HundredGigE0/3/0/2/1 unassigned Down Down default
HundredGigE0/3/0/3/0 unassigned Down Down default
HundredGigE0/3/0/3/1 unassigned Down Down default
Use the following commands for the newly configured image:
hw-module port-range 0 1 location 0/6/CPU0 mode 400
hw-module port-range 2 3 location 0/6/CPU0 mode 400
hw-module port-range 4 5 location 0/6/CPU0 mode 400
hw-module port-range 6 7 location 0/6/CPU0 mode 400
hw-module port-range 8 9 location 0/6/CPU0 mode 400
hw-module port-range 10 11 location 0/6/CPU0 mode 400
hw-module port-range 12 13 location 0/6/CPU0 mode 400
hw-module port-range 14 15 location 0/6/CPU0 mode 400
hw-module port-range 16 17 location 0/6/CPU0 mode 400
hw-module port-range 24 25 location 0/6/CPU0 mode 400
hw-module port-range 26 27 location 0/6/CPU0 mode 400
hw-module port-range 28 29 location 0/6/CPU0 mode 400
hw-module port-range 0 1 location 0/6/CPU0 mode 2x100
hw-module port-range 2 3 location 0/6/CPU0 mode 2x100
hw-module port-range 4 5 location 0/6/CPU0 mode 2x100
hw-module port-range 6 7 location 0/6/CPU0 mode 2x100
hw-module port-range 8 9 location 0/6/CPU0 mode 2x100
hw-module port-range 10 11 location 0/6/CPU0 mode 2x100
hw-module port-range 12 13 location 0/6/CPU0 mode 2x100
hw-module port-range 14 15 location 0/6/CPU0 mode 2x100
hw-module port-range 16 17 location 0/6/CPU0 mode 2x100
hw-module port-range 24 25 location 0/6/CPU0 mode 2x100
hw-module port-range 26 27 location 0/6/CPU0 mode 2x100
hw-module port-range 28 29 location 0/6/CPU0 mode 2x100
NCS-57B1-6D24-SYS and NCS-57B1-5DSE-SYS have the following port-mapping characteristics:
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All ports use QSFP-DD; however, the first 24 ports are 100G, and the last few ports (six for non-SE and five for SE) are 400G.
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The two port types available are "400G Direct" port and "Quad Port Group".
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Each port type supports one or more speeds and breakout modes, such as 400G/4x100G/2x100G/8x50G/100G/4x25G/40G/4x10G/10G.
400G Direct Ports
Ports 24-29 for non-SE and ports 24-28 for SE are 400G direct ports, which support 400G individually.
Table 1. Possible Optics and Breakout for 400G Direct Ports
Optics
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Breakout
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QSFP-DD 400G
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4x100G, 8x50G
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QSFP56 200G
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2x100G, 4x50G
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QSFP28-DD 2x100G
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2x(4x25G)
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QSFP28 100G
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4x25G
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QSFP+ 40G
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4x10G
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Configuration Examples
The following are some configuration examples. All possible combinations are not listed here.
Router(config)#controller optics 0/0/0/n breakout 4x100
Result: Hu0/0/0/n/0-3
Router(config)#controller optics 0/0/0/n breakout 8x50
Result: Fi0/0/0/n/0-7
Router(config)#controller optics 0/0/0/n breakout 2x100
Result: Hu0/0/0/n/0-1
Router(config)#controller optics 0/0/0/n breakout 4x25
Result: TF0/0/0/n/0-3
Router(config)#controller optics 0/0/0/n breakout 4x10
Result: Te0/0/0/n/0-3
Quad Port Groups
Quad port groups have the following characteristics:
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There are six quad port groups of 4 QSFP-DD: (0,3), (4-7), (8-11), (12-15), (16-19), and (20-23).
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Each group shares 400G.
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Each port supports any combination of 40G/100G optics by default for a total of 400G per group.
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Each group has two port pairs, for example (0,1) and (2,3) for group (0,3).
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Breakout is only supported on the even (top) port of a port pair. The odd (bottom) port is automatically disabled. The odd
port should be empty.
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QSA is supported only on 100G QSFP-DD ports, not on 400G QSFP-DD ports.
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Only 10G SFP+ optics are supported. There is no support for 1G.
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Linear optics not supported.
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For combinations with other optics type, see Quad Port Group table below, and consider 10G as one of the 40G optics.
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4x25G breakout cannot co-exist with 40G or 4x10G breakout in the same port group.
Table 2. Possible Optics and Breakout for Quad Port Groups
Port N
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Port N+1
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Port N+2
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Port N+3
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100G or 40G
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100G or 40G
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100G or 40G
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100G or 40G
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4x10G
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Disabled
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4x10G
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Disabled
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4x10G
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Disabled
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100G or 40G
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100G or 40G
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100G or 40G
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100G or 40G
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4x10G
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Disabled
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4x25G
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Disabled
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4x25G
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Disabled
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4x25G
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Disabled
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100G
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100G
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100G
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100G
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4x25G
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Disabled
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Configuration Examples
The following are some configuration examples. All possible combinations are not listed here.
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Quad Port Group in 4x10G breakout mode
Router(config)#hw-module port-range n n+1 location 0/RP0/CPU0 mode 4x10
Results:
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Te0/0/0/n/0-3: Port n+1 will be automatically disabled.
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Fo0/0/0/n+2~n+3 or Hu0/0/0/n+2~n+3 Ports n+2 and n+3 by default will be either 40G or 100G.
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For breakout in port n+2, a new breakout configuration is needed for port range n+2 n+3, as only top port n+2 supports breakout
(bottom port n+3 is disabled) and cannot have a mix of 4x10G and 4x25G in the same port group.
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Quad Port Group in 4x25G breakout mode
Router(config)#hw-module port-range n n+1 location 0/RP0/CPU0 mode 4x25
Results (TF0/0/0/n/0-3 or Hu0/0/0/n+2~n+3):
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Ports n+2 and n+3 can only be 100G.
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For breakout in port n+2, a new breakout configuration is needed for port range n+2 n+3, as only top port n+2 supports breakout
(bottom port n+3 is disabled) and cannot have a mix of 4x10G and 4x25G in the same port group.
To preconfigure interfaces, you must understand these concepts: