Huawei OSN 9800 U32/U64 20-port Ethernet Service Processing Board

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TNV1EMS20 20-port Ethernet Service Processing Board

Applied to Huawei OSN 9800 U32, U64, it supports the Layer 2 switching, link aggregation,and multicast functions

TNV1EMS20 board supports IGMP snooping of Protocol enabling, Port aging time, Fast leave, Discarding of unknown broadcast packets

TNV1EMS20 board supports LLDP and Physical Clock Synchronization

The TNV1EMS20 board is a 20-port Ethernet Service Processing Board. The EMS20 is used to transmit/receive Ethernet services, manage bandwidths, and realize Layer 2 switching of Ethernet services.

Tech Specs
Front Panel
Valid Slots
OptiX OSN 9800 U32 Standard subrack: IU1 to IU32
OptiX OSN 9800 U32 Enhanced subrack: IU1 to IU32
OptiX OSN 9800 U64 Standard subrack: IU1 to IU64
OptiX OSN 9800 U64 Enhanced subrack: IU1 to IU64
Initial Version of Different Subrack
Function and Feature Description
Basic functions Transmits/Receives 20 Ethernet services, encapsulates and maps the Ethernet services into SDH signals, and forwards the SDH signals to the SDH plane for transmission. The maximum uplink bandwidth of the EMS20 board is 2 x 2.5 Gbit/s.
NOTE: The maximum uplink bandwidth of ports ip1 to ip10 or ip11 to ip20 on the EMS20 board is 2.5 Gbit/s.
When VC-12 signals are bound to a VCTRUNK, the maximum upstream bandwidth of the EMS20 board is 2 x 1.25 Gbit/s.
Services can be configured only to VCTRUNK1 to VCTRUNK64 for ports ip1 to ip10, and services can be configured only to VCTRUNK65 to VCTRUNK128 for ports ip11 to ip20.
Cross-connections are not supported between VCTRUNK1 to VCTRUNK64 and VCTRUNK65 to VCTRUNK128.
Port characteristics Working modes GE electrical port: auto-negotiation, 1000M full-duplex, 100M full-duplex, and 10M full-duplex.
GE optical port: auto-negotiation and 1000M full-duplex.
FE optical port: 100M full-duplex.
10GE optical ports: 10GE full-duplex LAN.
NOTE: All ports on the EMS20 board support FE optical ports, GE optical ports and GE electrical ports.
Only TX1/RX1 and TX11/RX11 ports support 10GE optical ports.
The FE electrical signals are accessed through the GE electrical port in 100M full-duplex mode.
Traffic control at ports Auto-negotiation mode Supported only by GE ports
Non-autonegotiation mode Supported
Query/Setting of port status Supported
Query of port types Supported
Service categories EPL service Supports PORT-based transparent transmission.
EVPL service Supports PORT-shared EVPL services.
Supports a maximum of 2 x 2000 link services.
Supports VCTRUNK-shared EVPL services.
The services are isolated by VLAN tags.
The services are isolated by QinQ tags.
EPLAN service Supports the EPLAN services that are based on the IEEE 802.1d MAC bridge.
Supports a maximum of 2 x 16 VBs. The maximum number of logical ports for each VB is 74.
Blacklist, static MAC address, and dynamic MAC address sharing 2 x 16K
Supports the blacklist that can contain 512 records and also the static MAC address table that can contain 512 records.
A maximum of 2 x 16K dynamic MAC addresses are supported.
Supports the self-learning of the source MAC address. The aging time of the MAC address can be set and queried.
Supports the configuration of static MAC routes.
Supports the query of dynamic MAC addresses.
NOTE: EMS20 boards support SVL bridge learning modes. Ensure that all bridges on a board apply the same learning mode.
EVPLAN service Supports the EVPLAN services that are based on the IEEE 802.1q virtual bridge and IEEE 802.1ad provider bridge.
Supports data isolation based on VB+VLAN.
Supports a maximum of 2 x 16 VBs. The maximum number of logical ports for each VB is 74.
Supports the setting of a maximum of 4095 VLAN filtering tables.
NOTE: EMS20 boards support SVL and IVL bridge learning modes. Ensure that all bridges on a board apply the same learning mode.
Service specifications Formats of Ethernet data frames IEEE 802.3 Supported
Ethernet II Supported
IEEE 802.1 q/p Supported
Frame length range Supports the setting of the frame length to a value ranging from 1518 bytes to 9600 bytes.
Supports a jumbo frame with a maximum length of 9600 bytes.
Bound bandwidth 32 x VC-4, or 96 x VC-3, or 1008 x VC-12
Concatenation granularities VC-12, VC-3, VC-4, VC-12-Xv (X ≤ 63), VC-3-Xv (X ≤ 24), and VC-4-Xv (X ≤ 8).
Encapsulation formats HDLC Supported
LAPS Supported
GFP-F Supported
VLAN technology Supports a total number of 4095 VLANs, which comply with IEEE 802.1q/p.
Maximum uplink bandwidth 2 x 2.5 Gbit/s.
NOTE: When VC-12 signals are bound to a VCTRUNK, the maximum upstream bandwidth of the EMS20 board is 2 x 1.25 Gbit/s.
VCTRUNK specifications 2 x 64
Configuration principles are as follows:
A VCTRUNK can be bound to a maximum of 8 VC4s, 24 VC3s or 63 VC12s.
VC4/VC3 is divided into two areas: [VC4-1 ~ VC4-16], [VC4-17 ~ VC4-32]. Different areas of VC4/VC3 cannot be bound to the same VCTRUNK.
VC-4 can be bound as VC-3/VC-4 channels
Only [VC4-1 ~ VC4-8] and [VC4-17 ~ VC4-24] can be bound as VC-12 channels.
[VC4-1 ~ VC4-8] and [VC4-17 ~ VC4-24] cannot be bound to the same VCTRUNK.
NOTE: VCTRUNK1 to VCTRUNK64 can be bound to VC4/VC3 partitions [VC4-1 ~ VC4-16], VCTRUNK65 to VCTRUNK128 can be bound to VC4/VC3 partitions [VC4-17 ~ VC4-32].
Protection schemes Distributed link aggregation group (DLAG) Supports static DLAGs.
Supports non-load sharing DLAGs.
Complies with IEEE 802.3ad and IEEE 802.1ax.
LAG Supports manual link aggregation and static link aggregation.
Supports the load sharing mode and non-load sharing mode.
Complies with IEEE 802.3ad and IEEE 802.1ax.
LCAS Dynamically increases or decreases the bandwidth and protects the bandwidth in compliance with ITU-T G.7042.
LPT Supports P2P LPT and P2MP LPT in compliance with ITU-T G.7042.
BPS Supported
PPS Supported
STP/RSTP Supports the RSTP, which complies with IEEE 802.1w.
Maintenance features ETH-OAM Supports CC, LB tests, and LT tests in compliance with IEEE 802.1ag and OAM ping in compliance with Huawei proprietary protocol.
Supports OAM auto-discovery, remote loopbacks, fault detection, and link performance detection in compliance with IEEE 802.3ah, and selfloop detection in compliance with Huawei proprietary protocol.
Test Frame Supports test frames in GFP bearer mode.
Port mirroring Supports ingress/egress port mirroring.
Loopback capability PHY layer at Ethernet ports Supports inloops and outloops.
MAC layer at Ethernet ports Supports inloops and outloops.
RMON Supports RMON of the Ethernet performance of Ethernet ports and VCTRUNKs.
Warm resets Supported
Cold resets Supported
Alarms and performance events Reports various alarms and performance events, which facilitates the management and maintenance of the equipment.
QoS Traffic classification Supports traffic classification based on PORT, PORT+VLAN, PORT+SVLAN, and PORT+VLAN+PRI.
Class of service (CoS) Supports CoS types including simple, VLAN priority, DSCP, and IP TOS.
Committed access rate (CAR) Supports the CAR, with the granularity of 64 kbit/s.
Shaping Supports queue shaping on ports.
Queue scheduling policy Supports strict priority (SP) and weighted round robin (WRR).
Congestion avoidance Supports random early detection (RED).
Traffic control Supports the port-based traffic control function that complies with IEEE 802.3x.
Traffic monitoring EMS20 boards support port-based and VCTRUNK-based traffic monitoring.
Pluggable Optical Module Supported
SFP-1000Base-T-autonegotiation-100 m-RJ45
SFP-1000Base-T-autonegotiation-100 m-RJ45-I
SFP+ -0.125G to 11.3G-1310nm-SMF-10km
SFP+ -GE(LX)/10GE(LR/LW)-1310nm-SMF-10km
SFP+ -10G(10GE,LR/LW)-1310nm-SMF-10km
Mechanical Specifications
Dimensions (W x H x D, mm) 477.3 x 30.5 x 220.0
Weight (kg) 3.2
Typical Power Consumption (W) 123
Maximum Power Consumption (W) 130
Additional information


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