Huawei OSN1800V 4*GE switching and processing board TMB1EGS4, 03027CGT


3-5 days

Shenzhen Warehouse

SKU: 2012310 PN: 03027CGT Category:


TMB1EGS4 overview

Huawei OSN1800V 4*GE switching and processing board TMB1EGS4.

The TMB1EGS4 is used to transmit/receive Ethernet services, manage bandwidths, and realize Layer 2 switching of Ethernet services.

TMB1EGS4 boards support the Layer 2 switching, link aggregation, and multicast functions.

Version description of the TMB1EGS4 board


Logic Board

Product Applicable-System Control Board-Initial Board Version Supported by System Control Board




1800 I Enhanced-TMA1UXCL-V100R008C10

1800 V-TNF5UXCM-V100R005C00

1800 V-TNF5UXCME-V100R005C20

1800 V-TTNZ5UXCMS-V100R006C10

1800 II Enhanced-TNZ1UXCL-V100R007C10

1800 II Enhanced-TNZ2UXCL-V100R008C00SPC600

1800 V-TNZ5XCS-V100R019C10SPC300

For OptiX OSN 1800 V:

The TNF1EGS4 board can be created as the EGS4 or EGS4D board on the NMS. When created as the EGS4D board, the TNF1EGS4 board not only supports EoS application but also transmits 2xGE signals between the packet plane and SDH plane (EoD application). When created as the EGS4 board, the TNF1EGS4 board supports EoS application only.


Unless otherwise specified, for OptiX OSN 1800 V, the EGS4 boards mentioned in this document include both ESG4 and EGS4D boards created on the NMS.


1800 V-TNZ5UXCMS-V100R006C10

1800 V-TNZ5XCS-V100R019C10SPC300



Basic functions

Receives/Transmits and processes 4*FE or 4*GE services.


If created as the EGS4 or EGS4D board on the NMS, the board supports EoS application.

Port types

  • FE SFP optical module type: 100BASE-BX/100BASE-FX/100BASE-LX/100BASE-VX/100BASE-ZX

  • GE SFP optical module type: 1000BASE-SX/1000BASE-LX/1000BASE-ZX
  • GE SFP electrical module type: 1000BASE-T, supporting auto-negotiation
  • SFP module types:
    • FE/GE two-fiber bidirectional pluggable optical module
    • FE/GE single-fiber bidirectional pluggable optical module
    • GE pluggable electrical module
  • A GE optical port can be a colored CWDM optical port. A colored CWDM optical port supports a transmission distance of 40 km or 80 km.

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

Traffic control at ports

  • Supports auto-negotiation flow control (supported only by GE ports).
  • Supports non-auto-negotiation flow control.

Query/Setting of port status


Query of port types


Service categories

EPL service

Supports PORT-based transparent transmission.

EVPL service

  • Supports PORT-shared EVPL 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 16 VBs. The maximum number of logical ports for each VB is 68.
  • Supports the self-learning of the source MAC address. The capacity of the MAC address table is 16K. 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.
  • Supports the blacklist that can contain 512 records and also the static MAC address table that can contain 512 records.


EGS4 boards support SVL 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 the setting of a maximum of 4095 VLAN filtering tables.


EGS4 boards support SVL and IVL modes. Ensure that all bridges on a board apply the same learning mode.

Service specifications

Formats of Ethernet data frames

  • Supports IEEE 802.3.
  • Supports Ethernet II.
  • Supports IEEE 802.1 q/p.

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

16 x VC-4, or 48 x VC-3, or 252 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

  • Supports HDLC, LAPS, GFP-F.

MPLS technology

Not supported

VLAN technology

Supports a total number of 4094 VLANs, which comply with IEEE 802.1q/p.

Maximum uplink bandwidth

2.5 Gbit/s.

VCTRUNK specifications


Configuration principles are as follows:

  • Supports a maximum of 16 VC-4s.
  • When a lower-order channel is bound, VC-4 channels numbered 1 to 4 support the binding of VC-3 and VC-12 channels. VC-4 channels numbered 5 to 16 support the binding of VC-3 channels only.

Protection schemes


Not supported


Not supported

Distributed link aggregation group (DLAG)

  • Supports static DLAGs.
  • Supports non-load sharing DLAGs.
  • Complies with IEEE 802.3ad and IEEE 802.1ax.


  • 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.


Dynamically increases or decreases the bandwidth and protects the bandwidth in compliance with ITU-T G.7042.


Supports P2P LPT and P2MP LPT in compliance with Huawei proprietary protocol.


Supports the RSTP, which complies with IEEE 802.1w.


Not supported


Physical Clock



SFP electrical modules do not support physical clock.

IEEE 1588v2

Not supported

Maintenance features


  • 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.

Response to ping


Port mirroring

Supports ingress mirroring.

Loopback capability

  • Supports inloops at the PHY layer of the Ethernet port.
  • Supports inloops at the MAC layer of the Ethernet port.
  • Supports outloops at the VC-4 level, VC-3 level and VC-12 level.


Supports RMON of the Ethernet performance of Ethernet ports and VCTRUNKs.

Warm resets


Cold resets


Alarms and performance events

Reports various alarms and performance events, which facilitates the management and maintenance of the equipment.


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.


Supports queue shaping on ports.

Queue scheduling policy

Supports strict priority (SP) and weighted fair queuing (WFQ).

Congestion avoidance

Supports random early detection (RED).

IGMP snooping

Protocol enabling

Supports protocol enabling in compliance with IGMPv1 and IGMPv2.

Port aging time


Fast leave


Discarding of unknown broadcast packets


Static broadcast entry

Not supported

Traffic control

Supports the port-based traffic control function that complies with IEEE 802.3x.

Traffic monitoring

EGS4 boards support port-based and VCTRUNK-based traffic monitoring.


When working with TNZ5UXCMS, the board supports this function.


When working with TNZ5UXCMS, the board supports this function.

1 review for TMB1EGS4

  1. 5 out of 5


    I like working with, they are very professional

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