Example for Configuring FlexE Interfaces

This section provides an example for configuring interfaces on two devices that are connected using FlexE.

Networking Requirements

On the network shown in Figure 1, FlexE clients need to be created on DeviceA and DeviceB for communication. Different bandwidths are configured for the FlexE clients to meet requirements for diversified services and applications. The bandwidths of FlexE Client1, FlexE Client2, FlexE Client3, and FlexE Client4 need to be set to 4 Gbit/s, 5 Gbit/s, 15 Gbit/s, and 20 Gbit/s, respectively.

Figure 1 Networking diagram for configuring FlexE interfaces

In this example, interfaces 0 through 4 represent FlexE-50G 0/1/52, FlexE 0/1/129, FlexE 0/1/130, FlexE 0/1/131, and FlexE 0/1/132, respectively.

Precautions

When you configure FlexE interfaces, note the following:

To ensure normal communication between interconnected devices, you need to configure the same PHY number for the FlexE physical interfaces on both of them.
To ensure normal communication between interconnected devices, you need to configure the same group number for the FlexE groups to which the FlexE physical interfaces on both devices are added.
To ensure that the FlexE clients on both ends can communicate with each other, you need to configure the same ID and bandwidth for them.

Configuration Roadmap

The configuration roadmap is as follows:

Activate the FlexE interface license on a board.
Configure a standard Ethernet interface to work in FlexE mode.
Configure a PHY number for a FlexE physical interface.
Create a FlexE group and bind the FlexE physical interface to it.
Configure a number for the FlexE group.
Configure a sub-timeslot granularity for a FlexE card.
Create a FlexE client and configure an ID and bandwidth for it.

Data Preparation

To complete the configuration, you need the following data:

PHY number of a FlexE physical interface: 5
Index of a FlexE group: 1
Number of a FlexE group: 2345
Sub-timeslot granularity of a FlexE card: 1 Gbit/s
IDs of four FlexE interfaces: port numbers of interface 1, interface 2, interface 3, and interface 4
IDs of four FlexE clients: 1, 2, 3, and 4 (corresponding to 4 Gbit/s, 5 Gbit/s, 15 Gbit/s, and 20 Gbit/s bandwidths, respectively)

Procedure

Activate the FlexE interface license on a board.

<DeviceA> license active XXXXX.dat
<DeviceA> system-view
[~DeviceA] license
[~DeviceA-license] active port-basic slot 1 card 1 port 52
[*DeviceA-license] active port-slicing slot 1 card 1 port 52
[*DeviceA-license] commit
[~DeviceA-license] quit

Configure a standard Ethernet interface to work in FlexE mode.

[~DeviceA] flexe enable port 0/1/52
Warning: This operation will delete interface 50GE0/1/52 and related services. Continue? [Y/N]:y
[*DeviceA] commit

Configure a PHY number for a FlexE physical interface.

[~DeviceA] interface FlexE-50G 0/1/52
[~DeviceA-FlexE-50G0/1/52] phy-number 5
Warning: The traffic on this interface may be interrupted if the operation is performed. Continue? [Y/N]:y
[*DeviceA-FlexE-50G0/1/52] commit
[~DeviceA-FlexE-50G0/1/52] quit

Create a FlexE group and bind the FlexE physical interface to it.

[~DeviceA] flexe group 1
[*DeviceA-flexe-group-1] binding interface FlexE-50G0/1/52

Configure a number for the FlexE group.

[*DeviceA-flexe-group-1] flexe-groupnum 2345
Warning: The traffic on related clients may be interrupted if the operation is performed. Continue? [Y/N]:y
[*DeviceA-flexe-group-1] commit
[~DeviceA-flexe-group-1] quit

Configure a sub-timeslot granularity for a FlexE card.

[~DeviceA] set flexe sub-time-slot granula slot 1 card 1 1g
[*DeviceA] commit

Create a FlexE client and configure an ID and bandwidth for it.

[~DeviceA] flexe client-instance 1 flexe-group 1 flexe-type full-function port-id 129
[*DeviceA-flexe-client-1] flexe-clientid 1
Warning: The traffic on this interface may be interrupted if the operation is performed. Continue? [Y/N]:y
[*DeviceA-flexe-client-1] flexe-bandwidth 4
[*DeviceA-flexe-client-1] commit
[~DeviceA-flexe-client-1] quit
[~DeviceA] flexe client-instance 2 flexe-group 1 flexe-type full-function port-id 130
[*DeviceA-flexe-client-2] flexe-clientid 2
Warning: The traffic on this interface may be interrupted if the operation is performed. Continue? [Y/N]:y
[*DeviceA-flexe-client-2] flexe-bandwidth 5
[*DeviceA-flexe-client-2] commit
[~DeviceA-flexe-client-2] quit
[~DeviceA] flexe client-instance 3 flexe-group 1 flexe-type full-function port-id 131
[*DeviceA-flexe-client-2] flexe-clientid 3
Warning: The traffic on this interface may be interrupted if the operation is performed. Continue? [Y/N]:y
[*DeviceA-flexe-client-2] flexe-bandwidth 15
[*DeviceA-flexe-client-2] commit
[~DeviceA-flexe-client-2] quit
[~DeviceA] flexe client-instance 4 flexe-group 1 flexe-type full-function port-id 132
[*DeviceA-flexe-client-2] flexe-clientid 4
Warning: The traffic on this interface may be interrupted if the operation is performed. Continue? [Y/N]:y
[*DeviceA-flexe-client-2] flexe-bandwidth 20
[*DeviceA-flexe-client-2] commi
[~DeviceA-flexe-client-2] quit

Repeat the preceding steps on DeviceB. For configuration details, see Configuration Files in this section.

Verify the configuration.

After completing the preceding configuration, run the display flexe group information command on DeviceA and DeviceB to check group information of FlexE cards. The command output on DeviceA is used as an example.

[~DeviceA] display flexe group information slot 1 card 1
FlexE Card Info:
=============================================================
FlexE Config Mode                : Bandwidth
=============================================================

FlexE Group Info:
=============================================================
GroupID    Total Bandwidth(M)    Valid Bandwidth(M)
------------------------------------------------------
1                50000                50000  
=============================================================

FlexE Group Binding Interfaces Capability:
=============================================================
-------------------------------------------------------------
GroupID   Interfaces already bound  Interfaces can be bound  
-------------------------------------------------------------
1         FlexE-50G0/1/52                                                       
-------------------------------------------------------------
=============================================================

FlexE Phy Info:
=============================================================
Port No             : FlexE-50G0/1/52
Active Status       : 1
Cfg Group ID        : 1
Cfg Group No        : 2345
Real TX Group No    : 2345
Real RX Group No    : 2345
Remote Group No     : 2345
Cfg Phy No          : 5
Real TX Phy No      : 5
Real RX Phy No      : 5
Remote Phy No       : 5
=============================================================

FlexE Time Slot Info:
=============================================================

------------------------------------------------------
port-no             : FlexE-50G0/1/52
ts-num              : 20
sub-ts-num          : 5
-------------------------------------------------------
  time-slot-id      ts-port-map
-------------------------------------------------------
   0:               [129][129][129][129][130]
   1:               [130][130][130][130][131]
   2:               [131][131][131][131][131]
   3:               [131][131][131][131][131]
   4:               [131][131][131][131][132]
   5:               [132][132][132][132][132]
   6:               [132][132][132][132][132]
   7:               [132][132][132][132][132]
   8:               [132][132][132][132][-]
   9:               [-][-][-][-][-]
  10:               [-][-][-][-][-]
  11:               [-][-][-][-][-]
  12:               [-][-][-][-][-]
  13:               [-][-][-][-][-]
  14:               [-][-][-][-][-]
  15:               [-][-][-][-][-]
  16:               [-][-][-][-][-]
  17:               [-][-][-][-][-]
  18:               [-][-][-][-][-]
  19:               [-][-][-][-][-]
=============================================================

Run the display interface ethernet brief command on DeviceA and DeviceB to check brief information about FlexE interfaces. The command output on DeviceA is used as an example.

[~DeviceA] display interface ethernet brief
PHY: Physical
*down: administratively down
^down: standby
(l): loopback
(b): BFD down
(d): Dampening Suppressed
(p): port alarm down
InUti/OutUti: input utility/output utility
Interface                   PHY   Auto-Neg Duplex Bandwidth  InUti OutUti Trunk
FlexE0/1/129                up    -        full          4G  0.01%  0.01%    --
FlexE0/1/130                up    -        full          5G  0.01%  0.01%    --
FlexE0/1/131                up    -        full         15G  0.01%  0.01%    --
FlexE0/1/132                up    -        full         20G  0.01%  0.01%    --
FlexE-50G0/1/52              up    -        full         50G     --     --    --

Run the display lldp neighbor brief command on DeviceA and DeviceB to check brief information about LLDP neighbors of FlexE interfaces. The command output on DeviceA is used as an example.

[~DeviceA] display lldp neighbor brief
Local Intf                     Neighbor Dev         Neighbor Intf        Exptime (sec)
--------------------------------------------------------------------------------------
FlexE0/1/129                   DeviceB              FlexE0/1/129                   114
FlexE0/1/130                   DeviceB              FlexE0/1/130                   114
FlexE0/1/131                   DeviceB              FlexE0/1/131                   114
FlexE0/1/132                   DeviceB              FlexE0/1/132                   114
FlexE-50G0/1/52                 DeviceB              FlexE-50G0/1/52                 95

Run the display interface flexe interface-number command on DeviceA and DeviceB to check the running status and statistics of a FlexE interface. The following example uses the command output on FlexE 0/1/129 of DeviceA.

[~DeviceA] display interface flexe 0/1/129
FlexE0/1/129 current state : UP (ifindex: 285)
Line protocol current state : UP 
Last line protocol up time : 2021-03-11 09:11:24
Link quality grade : GOOD
Description: 
Route Port,The Maximum Transmit Unit is 1500 
Internet Address is 10.1.1.1/24
IP Sending Frames' Format is PKTFMT_ETHNT_2, Hardware address is 00e0-fc12-3456
Port BW: 4G
Pause Flowcontrol: Receive Enable and Send Enable
Client-id Match State: Match
Last physical up time   : 2021-03-10 15:11:46
Last physical down time : 2021-03-10 15:11:29
Current system time: 2021-03-11 11:36:52
Statistics last cleared:never
    Last 300 seconds input rate: 10031 bits/sec, 1 packets/sec
    Last 300 seconds output rate: 10041 bits/sec, 1 packets/sec
    Input peak rate 125150137 bits/sec, Record time: 2021-03-10 09:25:57
    Output peak rate 125757954 bits/sec, Record time: 2021-03-10 09:25:57
    Input: 7006191780 bytes, 52343200 packets
    Output: 7024402448 bytes, 52482810 packets
    Input:
      Unicast: 52334185 packets, Multicast: 9010 packets
      Broadcast: 5 packets, JumboOctets: 0 packets
      CRC: 0 packets, Symbol: 0 packets
      Overrun: 0 packets, InRangeLength: 0 packets
      LongPacket: 0 packets, Jabber: 0 packets, Alignment: 0 packets
      Fragment: 0 packets, Undersized Frame: 0 packets
      RxPause: 0 packets
    Output:
      Unicast: 52473465 packets, Multicast: 9334 packets
      Broadcast: 11 packets, JumboOctets: 0 packets
      Lost: 0 packets, Overflow: 0 packets, Underrun: 0 packets
      System: 0 packets, Overruns: 0 packets
      TxPause: 0 packets
    Last 300 seconds input utility rate:  0.01%
    Last 300 seconds output utility rate: 0.01%

Configuration Files

DeviceA configuration file

#
sysname DeviceA
#
set flexe sub-time-slot granula slot 1 card 1 1g
flexe enable port 0/1/52
#
flexe group 1
 flexe-groupnum 2345
 binding interface FlexE-50G0/1/52
#
flexe client-instance 1 flexe-group 1 flexe-type full-function port-id 129
 flexe-clientid 1
 flexe-bandwidth 4
#
flexe client-instance 2 flexe-group 1 flexe-type full-function port-id 130
 flexe-clientid 2
 flexe-bandwidth 5
#
flexe client-instance 3 flexe-group 1 flexe-type full-function port-id 131
 flexe-clientid 3
 flexe-bandwidth 15
#
flexe client-instance 4 flexe-group 1 flexe-type full-function port-id 132
 flexe-clientid 4
 flexe-bandwidth 20
#
license
 active port-basic slot 1 card 1 port 52
 active port-slicing slot 1 card 1 port 52
#
interface FlexE-50G0/1/52
 undo shutdown
 undo dcn
 phy-number 5
#
return

DeviceB configuration file

#
sysname DeviceB
#
set flexe sub-time-slot granula slot 1 card 1 1g
flexe enable port 0/1/52
#
flexe group 1
 flexe-groupnum 2345
 binding interface FlexE-50G0/1/52
#
flexe client-instance 1 flexe-group 1 flexe-type full-function port-id 129
 flexe-clientid 1
 flexe-bandwidth 4
#
flexe client-instance 2 flexe-group 1 flexe-type full-function port-id 130
 flexe-clientid 2
 flexe-bandwidth 5
#
flexe client-instance 3 flexe-group 1 flexe-type full-function port-id 131
 flexe-clientid 3
 flexe-bandwidth 15
#
flexe client-instance 4 flexe-group 1 flexe-type full-function port-id 132
 flexe-clientid 4
 flexe-bandwidth 20
#
license
 active port-basic slot 1 card 1 port 52
 active port-slicing slot 1 card 1 port 52
#
interface FlexE-50G0/1/52
 undo shutdown
 undo dcn
 phy-number 5
#
return