UFM Interfaces
Overview
Interfaces on the UFM are defined by their names and types and are addressed in the following format: interface_name:location_id, as shown in Table 1:
![]() | Note: The UFM6 and the QSFPP-4X10GE-LR (740-054050) and QSFP-100G-LR4-2 (740-074685) transceivers are supported starting with release 4.1. |
![]() | Note: The QSFPP-4X10GD-LR (740-058730) transceiver is supported starting with release 4.2. |
![]() | Note: The QSFPP-4X10GE-SR (740-054053), QSFP-100G-LR4-D (740-073859), and QSFP-100GBASE-SR4 (740-058734) transceivers are supported starting with release 4.3. |
Table 1: UFM Interfaces
Interface Name (Protocol) | Interface Type | Supported UFMs | Supported Transceivers | Interface Identifier | Introduced in Release |
---|---|---|---|---|---|
otu21 | otnOtu | UFM3 UFM4 | BP3AD6SS BP3AM6MS BP3AM6DL-xx BP3AM6TL | otu2:chassis/slot/subslot/port For example: otu2:1/5/2/3 | Before 2.1.1 |
UFM6 | QSFPP-4X10GD-LR (740-058730) | otu2:chassis/slot/subslot/port/subport For example: otu2:1/5/1/10/4 | 4.2 | ||
otu2e1 | otnOtu | UFM3 | BP3AD6SS BP3AM6MS BP3AM6DL-xx BP3AM6TL | otu2e:chassis/slot/subslot/port For example: otu2e:1/5/2/4 | 4.1 |
UFM6 | QSFPP-4X10GD-LR (740-058730) | otu2e:chassis/slot/subslot/port/subport For example: otu2e:1/5/1/10/4 | 4.2 | ||
otu4 | otnOtu | UFM3 UFM4 | BP3AMASS BP3AMDLI BP3AMCTL CFP-100GBASE-CHRT 100G Coherent MSA XCVR | otu4:chassis/slot/subslot/port For example: otu4:1/5/2/1 | Before 2.1.1 |
UFM6 | 400G Coherent MSA XCVR | otu4:chassis/slot/subslot/port/ subport.channel.tributary for OTU4 interfaces within an optical channel For example: otu4:1/5/2/1/2.1.2 | 4.1 | ||
QSFP-100G-LR4-D (740-073859) | otu4:chassis/slot/subslot/port For example: otu4:1/5/1/1 | 4.3 | |||
odu21,2 | otnOdu | UFM3 UFM4 | BP3AD6SS BP3AM6MS BP3AM6DL-xx BP3AM6TL | odu2:chassis/slot/subslot/port For example: odu2:1/5/2/3 | Before 2.1.1 |
UFM6 | QSFPP-4X10GD-LR (740-058730) | odu2:chassis/slot/subslot/port/subport For example: odu2:1/5/1/10/4 | 4.2 | ||
odu23 | otnOdu | UFM3 UFM4 | BP3AMASS BP3AMDLI BP3AMCTL CFP-100GBASE-CHRT 100G Coherent MSA XCVR | odu2:chassis/slot/subslot/port.subinterface for ODU2 subinterfaces within an ODU4 For example: odu2:1/5/2/1.1 | Before 2.1.1 |
UFM6 | 400G Coherent MSA XCVR | odu2:chassis/slot/subslot/port/ subport.channel.tributary.subinterface for ODU2 subinterfaces within an ODU4 For example: odu2:1/5/2/1/2.1.2.8 | 4.1 | ||
odu2e1,4 | otnOdu | UFM3 | BP3AD6SS BP3AM6MS BP3AM6DL-xx BP3AM6TL | odu2e:chassis/slot/subslot/port For example: odu2e:1/5/2/3 | 4.1 |
UFM6 | QSFPP-4X10GD-LR (740-058730) | odu2e:chassis/slot/subslot/port/subport For example: odu2e:1/5/1/10/4 | 4.2 | ||
odu2e5 | otnOdu | UFM3 | BP3AMASS BP3AMDLI BP3AMCTL CFP-100GBASE-CHRT | odu2e:chassis/slot/subslot/port.subinterface for ODU2e subinterfaces within an ODU4 For example: odu2e:1/5/2/1.1 | Before 2.1.1 |
UFM6 | 400G Coherent MSA XCVR | odu2e:chassis/slot/subslot/port/ subport.channel.tributary.subinterface for ODU2e subinterfaces within an ODU4 For example: odu2e:1/5/2/1/2.1.2.8 | 4.1 | ||
odu46 | otnOdu | UFM3 UFM4 | BP3AMASS BP3AMDLI BP3AMCTL CFP-100GBASE-CHRT 100G Coherent MSA XCVR | odu4:chassis/slot/subslot/port For example: odu4:1/5/2/1 | Before 2.1.1 |
UFM6 | 400G Coherent MSA XCVR | odu4:chassis/slot/subslot/port/ subport.channel.tributary for ODU4 interfaces within an optical channel. For example: odu4:1/5/2/1/2.1.2 | 4.1 | ||
QSFP-100G-LR4-D (740-073859) | odu4:chassis/slot/subslot/port For example: odu4:1/5/1/1 | 4.3 | |||
10ge | ethernetCsmacd | UFM3 UFM4 | BP3AD6SS BP3AM6MS BP3AM6DL-xx BP3AM6TL | 10ge:chassis/slot/subslot/port For example: 10ge:1/5/2/3 | Before 2.1.1 |
UFM6 | QSFPP-4X10GE-LR (740-054050) | 10ge:chassis/slot/subslot/port/subport For example: 10ge:1/5/1/10/4 | 4.1 | ||
QSFPP-4X10GD-LR (740-058730) | Same as above. | 4.2 | |||
QSFPP-4X10GE-SR (740-054053) | Same as above. | 4.3 | |||
100ge | ethernetCsmacd | UFM3 UFM4 | BP3AMASS BP3AMDLI | 100ge:chassis/slot/subslot/port For example:100ge:1/5/2/1 | Before 2.1.1 |
UFM6 | QSFP-100G-LR4-2 (740-074685) | 100ge:chassis/slot/subslot/port For example: 100ge:1/5/1/1 | 4.1 | ||
QSFP-100G-LR4-D (740-073859) | Same as above. | 4.3 | |||
QSFP-100GBASE-SR4 (740-058734) | Same as above. | 4.3 | |||
oc1921 | sonet | UFM3 UFM4 | BP3AM6MS BP3AM6DL-xx BP3AM6TL | oc192:chassis/slot/subslot/port For example: oc192:1/5/2/3 | Before 2.1.1 |
UFM6 | QSFPP-4X10GD-LR (740-058730) | oc192:chassis/slot/subslot/port/subport For example: oc192:1/5/1/10/3 | 4.2 | ||
stm641 | sonet | UFM3 UFM4 | BP3AM6MS BP3AM6DL-xx BP3AM6TL | stm64:chassis/slot/subslot/port For example: stm64:1/5/2/3 | Before 2.1.1 |
UFM6 | QSFPP-4X10GD-LR (740-058730) | stm64:chassis/slot/subslot/port/subport For example: stm64:1/5/1/10/3 | 4.2 | ||
wanoc1927 | sonet | UFM3 UFM4 | BP3AM6MS BP3AM6DL-xx BP3AM6TL | wanoc192:chassis/slot/subslot/port For example: wanoc192:1/5/2/3 | Before 2.1.1 |
wanstm648 | sonet | UFM3 UFM4 | BP3AM6MS BP3AM6DL-xx BP3AM6TL | wanstm64:chassis/slot/subslot/port For example: wanstm64:1/5/2/3 | Before 2.1.1 |
och | opticalChannel | UFM6 | 400G Coherent MSA XCVR | och:chassis/slot/subslot/port/subport.channel For example: och:1/5/2/1/2.1 | 4.1 |
8gfc9 | fibreChannel | UFM6 | QSFPP-4X10GE-SR (740-054053) QSFPP-4X10GD-LR (740-058730) | 8gfc:chassis/slot/subslot/port/subport For example: 8gfc:1/5/1/10/3 | 4.3 |
10gfc9 | fibreChannel | UFM6 | QSFPP-4X10GE-SR (740-054053) QSFPP-4X10GD-LR (740-058730) | 10gfc:chassis/slot/subslot/port/subport For example: 10gfc:1/5/1/10/3 | 4.3 |
1 The UFM3 and UFM4 are compatible with most OTN/SONET/SDH transport applications. Contact your Juniper Networks representative for more information. 2 Created automatically when an otu2 interface is created on a 10-Gbps port. 3 Created automatically on a UFM3 and UFM4 when a gmp-capable odu4 interface is created. Must be manually created on a UFM6. 4 Created automatically when an otu2e interface is created on a 10-Gbps port. 5 Created automatically on UFM6 when a gmp-capable odu4 line interface is created. Must be manually created on a UFM3 and UFM4. 6 Created automatically when an otu4 interface is created. 7 10-Gigabit Ethernet WAN PHY over OC-192. 8 10-Gigabit Ethernet WAN PHY over STM-64. 9 Fibre channel is supported starting with release 4.3. |
UFM6 Interface and Protocol Restrictions
Figure 1: UFM6 Client Ports

Figure 1 shows the UFM6 client ports (port group 1). The client ports are divided into two subgroups: A for ports 1 through 5, and B for ports 6 through 10. Ports within a subgroup must be provisioned to use the same protocol rate; however, each subgroup can use a different protocol rate. For example, ports in subgroup A can be provisioned as QSFP+ (10-Gbps) ports, while ports in subgroup B can be provisioned as QSFP28 (100-Gbps) ports, or vice versa.
Additionally, the QSFP28 transceiver can only be installed in the dual-mode client ports 1, 2, 6, and 7. Installing a QSFP28 transceiver in client ports 3, 4, 5, 8, 9, or 10 will cause an Inventory Unsupported (InventoryUnsupp) alarm to be raised against the transceiver.
Table 2 lists the possible client port configurations for the supported transceivers.
Table 2: UFM6 Client Port Configurations
Description | Transceiver | Subgroup | Ports |
---|---|---|---|
4 x 10-Gbps transceivers in both subgroup A and subgroup B | QSFPP-4X10GE-LR (740-054050) QSFPP-4X10GD-LR (740-058730) QSFPP-4X10GE-SR (740-054053) | A | 1 to 5 |
QSFPP-4X10GE-LR (740-054050) QSFPP-4X10GD-LR (740-058730) QSFPP-4X10GE-SR (740-054053) | B | 6 to 10 | |
4 x 10-Gbps transceivers in subgroup A and 100-Gbps transceivers in subgroup B | QSFPP-4X10GE-LR (740-054050) QSFPP-4X10GD-LR (740-058730) QSFPP-4X10GE-SR (740-054053) | A | 1 to 5 |
QSFP-100G-LR4-2 (740-074685) QSFP-100G-LR4-D (740-073859) QSFP-100GBASE-SR4 (740-058734) | B | 6, 7 | |
Unused | B | 8 to 10 | |
100-Gbps transceivers in subgroup A and 4 x 10-Gbps transceivers in subgroup B | QSFP-100G-LR4-2 (740-074685) QSFP-100G-LR4-D (740-073859) QSFP-100GBASE-SR4 (740-058734) | A | 1, 2 |
Unused | A | 3 to 5 | |
QSFPP-4X10GE-LR (740-054050) QSFPP-4X10GD-LR (740-058730) QSFPP-4X10GE-SR (740-054053) | B | 6 to 10 | |
100-Gbps transceivers in both subgroup A and subgroup B | QSFP-100G-LR4-2 (740-074685) QSFP-100G-LR4-D (740-073859) QSFP-100GBASE-SR4 (740-058734) | A | 1, 2 |
Unused | A | 3 to 5 | |
QSFP-100G-LR4-2 (740-074685) QSFP-100G-LR4-D (740-073859) QSFP-100GBASE-SR4 (740-058734) | B | 6, 7 | |
Unused | B | 8 to 10 |
The client dual-mode ports on the UFM6 have restrictions on what protocol combinations can be configured on its subports when using QSFP+ transceivers. This is shown in Table 3.
Table 3: UFM6 Client QSFP+ Dual-Mode Subport Protocol Restrictions
Client Port | 10-Gbps Subports | Protocol Restrictions |
---|---|---|
1 | 1 to 4 | All subports must be configured for the same protocol family:
|
2 | 1 to 4 | All subports must be configured for the same protocol family:
|
3 | 1 to 4 | No restriction |
4 | 1 to 4 | No restriction |
5 | 1 to 4 | No restriction |
6 | 1 to 4 | All subports must be configured for the same protocol family:
|
7 | 1 to 4 | All subports must be configured for the same protocol family:
|
8 | 1 to 4 | No restriction |
9 | 1 to 4 | No restriction |
10 | 1 to 4 | No restriction |
Multiplexed Interfaces
An ODU4 interface on a UFM3, UFM4, or on the integrated transceiver on a UFM6 can be configured as a multiplexed (gmp-capable) interface that maps lower-order ODUs (ODU2 and ODU2e) into the ODU4 using the generic mapping procedure (GMP). The same ODU4 can contain a mix of ODU2 and ODU2e signals.
Table 4 shows the multiplexing that is supported on the various UFMs:
Table 4: UFM Multiplexed Interfaces
Subinterface | Containing interface | Description | UFM | Example identifiers |
---|---|---|---|---|
ODU2 or ODU2e | ODU4 | Ten lower-order ODU subinterfaces within an ODU4. Each ODU subinterface consists of eight 1.25 Gbps tributary slots. | UFM3 | odu2:1/7/1/1.x or odu2e:1/7/1/1.x , where x is a value from 1 to 10. |
UFM4 | odu2:1/7/1/1.x , where x is a value from 1 to 10. Note: The UFM4 does not support ODU2e. | |||
UFM6 | odu2:1/5/2/1/2.1.2.x or odu2e:1/5/2/1/2.1.2.x , where x is a value from 1 to 10. |
The mapping of the subinterfaces to the containing ODU4 interface is specified by the optical data tributary group (odtg) and the tributary slot list (tributary-slot-list) attributes on the ODU4 interface. These attributes are automatically configured and cannot be changed. The mapping is shown in Table 5.
Table 5: ODU2 (ODU2e) Subinterface Mapping Into an ODU4
Subinterface | Default ODTG | Default tributary slots |
---|---|---|
ODU2 1.1 ODU2e 1.1 | 1 | 1 to 8 |
ODU2 1.2 ODU2e 1.2 | 2 | 9 to 16 |
ODU2 1.3 ODU2e 1.3 | 3 | 17 to 24 |
ODU2 1.4 ODU2e 1.4 | 4 | 25 to 32 |
ODU2 1.5 ODU2e 1.5 | 5 | 33 to 40 |
ODU2 1.6 ODU2e 1.6 | 6 | 41 to 48 |
ODU2 1.7 ODU2e 1.7 | 7 | 49 to 56 |
ODU2 1.8 ODU2e 1.8 | 8 | 57 to 64 |
ODU2 1.9 ODU2e 1.9 | 9 | 65 to 72 |
ODU2 1.10 ODU2e 1.10 | 10 | 73 to 80 |
Multiplexed Interfaces on UFM3 and UFM4
The ODU2 subinterfaces are automatically created on UFM3 and UFM4 as follows:
- When you configure an ODU4 interface for multiplexing,
the system automatically creates 10 ODU2 subinterfaces .1 through .10. For example
(truncated for clarity):
bti7800(config)# do show interface table | include 1/7
odu2:1/7/1/1.1 n/a no-multiplex n/a odu2:1/7/1/1.2 n/a no-multiplex n/a odu2:1/7/1/1.3 n/a no-multiplex n/a odu2:1/7/1/1.4 n/a no-multiplex n/a odu2:1/7/1/1.5 n/a no-multiplex n/a odu2:1/7/1/1.6 n/a no-multiplex n/a odu2:1/7/1/1.7 n/a no-multiplex n/a odu2:1/7/1/1.8 n/a no-multiplex n/a odu2:1/7/1/1.9 n/a no-multiplex n/a odu2:1/7/1/1.10 n/a no-multiplex n/a odu4:1/7/1/1 lowerLayerDown gmp-capable n/a otu4:1/7/1/1 enabled lowerLayerDown 192.100 THz 1560.61 nm enabled
If you want ODU2e subinterfaces instead, delete the corresponding ODU2 subinterface and manually create the desired ODU2e subinterface. You can have a mix of ODU2 and ODU2e subinterfaces within the same ODU4. For information on changing between ODU2 and ODU2e subinterfaces, see Provisioning a Transport Interface.
Multiplexed Interfaces on UFM6
The ODU2e subinterfaces are automatically created on UFM6 as follows:
- When you create an ODU4 line interface, the system automatically
configures it for multiplexing and creates ten ODU2e subinterfaces .1 through .10. For example
(truncated for clarity):
bti7800(config)# do show interface table | include 1/5/2/1/2.1.2
odu2e:1/5/2/1/2.1.2.1 n/a no-multiplex n/a odu2e:1/5/2/1/2.1.2.2 n/a no-multiplex n/a odu2e:1/5/2/1/2.1.2.3 n/a no-multiplex n/a odu2e:1/5/2/1/2.1.2.4 n/a no-multiplex n/a odu2e:1/5/2/1/2.1.2.5 n/a no-multiplex n/a odu2e:1/5/2/1/2.1.2.6 n/a no-multiplex n/a odu2e:1/5/2/1/2.1.2.7 n/a no-multiplex n/a odu2e:1/5/2/1/2.1.2.8 n/a no-multiplex n/a odu2e:1/5/2/1/2.1.2.9 n/a no-multiplex n/a odu2e:1/5/2/1/2.1.2.10 n/a no-multiplex n/a odu4:1/5/2/1/2.1.2 lowerLayerDown gmp-capable n/a otu4:1/5/2/1/2.1.2 enabled lowerLayerDown n/a n/a
If you want ODU2 subinterfaces instead, delete the corresponding ODU2e subinterface and manually create the desired ODU2 subinterface. You can have a mix of ODU2 and ODU2e subinterfaces within the same ODU4. For information on changing between ODU2 and ODU2e subinterfaces, see Provisioning a Transport Interface.
Forward Error Correction (FEC) Types
Forward error correction can be provisioned on OTU and optical channel interfaces. The following are the supported configurations:
Table 6: FEC Types
Interface | Supported FEC Types |
---|---|
OTU2 or OTU2e |
Note: The ports on the 12x SFP+ BIC are divided into three port groups (ports 1 to 4, ports 5 to 8, ports 9 to 12). Within each port group, you cannot configure one port for G.975.1 i.4 Super FEC and another port for G.975.1 i.7 Super FEC. The Super FEC settings are mutually exclusive within a port group. On a UFM6, all 10-Gbps client ports within the same QSFP+ transceiver have a similar restriction. You cannot configure one 10-Gbps port for G.975.1 i.4 Super FEC and another 10-Gbps port on the same transceiver for G.975.1 i.7 Super FEC. The Super FEC settings are mutually exclusive within a transceiver. |
OTU4 on 100G Coherent MSA XCVR |
|
OTU4 on 100G Coherent CFP |
|
OTU4 on all other CFPs |
|
OTU4 on the QSFP28 100GE Ethernet/OTN LR4 (QSFP-100G-LR4-D (740-073859)) |
|
Optical channel on 400G Coherent MSA XCVR |
Note: This FEC is applied to the optical channel, which can include one or two OTU4 signals. |
Release History Table