• Support 1000BASE-SX/LX/ZX/VX Ethernet optical interface, support self-negotiation function, meet IEEE 802.3z standard. Adopting pluggable SFP optical interface, the transmission distance of multi-mode fiber can reach up to 550m, and single-mode fiber up to 10km (40km and 80km optical modules can also be selected according to actual needs).

• Support 1000BASE-T Ethernet electrical interface, the electrical interface supports self-negotiation function, can be self-negotiated to 1000M rate. Adopting pluggable SFP electrical interface, the transmission distance can be up to 100m.

• Support 10BASE-T/100BASE-TX with ETF8; support 100Base-FX with EFF8, meet IEEE 802.3u standard.

• Work with ETF8 to realize 16-channel FE telecom signal access.

• Work with EFF8 to realize 16-channel FE optical signal access.

• 8-channel FE electrical signal and 8-channel FE optical signal access with ETF8 and EFF8.

• GE optical port: supports self-negotiation and 1000M full duplex.

• GE electrical port: supports self-negotiation, 1000M full duplex.

• When EMS4 is used with ETF8, it supports self-negotiation, 100M full-duplex, 100M half-duplex, 10M full-duplex, 10M half-duplex.

• EMS4 supports 100M full duplex when used with EFF8.

• Supports EVPL service with shared PORT.

• Supports EVPL service with shared VCTRUNK.

• VLAN tag isolation based

• Isolated based on QinQ tag

• Supports up to 8000 LINK services.

• Maximum support for 512 blacklists and 512 static MAC addresses. Blacklist only supports destination MAC address checksum, not source MAC address checksum.

• Support source MAC address self-learning function, MAC address table size is 128K, support MAC address aging time setting and query.

• Supports static MAC routing configuration.

• Supports dynamic MAC address query.

• The maximum number of VBs supported is 2, and the maximum number of logical ports per VB is 40.

• Supports EPLAN service based on IEEE 802.1d MAC bridge.

Description:

EMS4 supports SVL and IVL bridge learning modes, and the learning modes must be the same for all bridges on the single board.

• Supports data isolation based on VB+VLAN method.

• The maximum number of VBs supported is 2, and the maximum number of logical ports per VB is 40.

• Supports the setting of up to 4000 VLAN services.

• Supports EVPLAN services based on IEEE 802.1q Virtual Bridge and IEEE 802.1ad Provider Bridge.

Description:

EMS4 supports SVL and IVL bridge learning modes, and the learning modes must be the same for all bridges on a single board.

Quantity: 64

Configuration features:

• After each level of VC channel is used by one VCTRUNK binding, other VCTRUNKs can no longer be used.

• The same VCTRUNK can only bind one level of channel, you can't bind both VC-12 channel and VC-3 channel.

• The maximum bandwidth of each VCTRUNK is 1.25Gbit/s, and one VCTRUNK can bind up to 8 VC-4 or 24 VC-3 or 64 VC-12.

Description:

PPS creation is not supported when the single board interface type is GE electrical interface.

Supports manual link aggregation and static link aggregation.

Supports load sharing and non-load sharing.

Meets IEEE 802.3ad and IEEE 802.1AX standards.

Description:

For point-to-multipoint LPT, the inversion mode supports strict mode and non-strict mode.

Supports broadcast message suppression function and fast spanning tree protocol to meet IEEE 802.1w standard.

• Supports CC and LB to meet IEEE 802.1ag standards; supports OAM_Ping to meet Huawei's internal protocol standards.

• Supports OAM auto-discovery, remote loopback, fault detection, and link performance monitoring, meeting the IEEE 802.3ah standard; supports self-loop detection, meeting Huawei's internal protocol standard.

• Supports CAR with a granularity of 64kbit/s.

• Supports flow classification based on PORT, PORT+VLAN and PORT+SVLAN.

Description:

Only EPL services support port-based flow control.