| Basic Functions | Processes 4-channel GE services. |
| Interface Type | 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 the actual needs). The N1EGS4 and N4EGS4 boards also support 1000BASE-T Ethernet electrical interfaces, which support self-negotiation, of which the N1EGS4 supports 1000M self-negotiation rate and the N4EGS4 supports 10M, 100M or 1000M self-negotiation rate. Adopting pluggable SFP electrical interface, the transmission distance can reach up to 100m.
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| with cable outlet panel | Adopts panel direct wire out. |
| Interface Characteristics | Working Mode | GE electrical interface (N1EGS4): supports self-negotiation, 1000M full duplex. GE electrical interface (N4EGS4): supports self-negotiation, 1000M full-duplex, 100M full-duplex, 10M full-duplex. GE optical port: supports self-negotiation, 1000M full duplex. Description: Only N1EGS4 and N4EGS4 support GE electrical port. |
| Port flow control method | Self-negotiation | Supported |
| Non-self-negotiation | Supported |
| Port Status Query/Configuration | Supported |
| Interface Type Query | Support |
| Optical Power Threshold Setting | Not supported |
| Pluggable Optical Module | Support SFP pluggable optical module |
| Service Type | EPL | Supports PORT-based transparent transport. |
| EVPL | Supports EVPL service with shared PORT. Supports EVPL service with shared VCTRUNK. Supports up to 8000 LINK services.
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| EPLAN | 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 by N1EGS4/N3EGS4 is 2, and the maximum number of logical ports per VB is 68. The maximum number of VBs supported by N4EGS4 is 16, and the maximum number of logical ports per VB is 68. Supports querying the actual learned MAC address by VB+VLAN or VB+LP. Supports EPLAN service based on IEEE 802.1d MAC bridge.
Description: EGS4 supports SVL and IVL bridge learning modes. the learning modes of all bridges on a single board must be the same. |
| EVPLAN | Supports data isolation based on VB+VLAN method. The maximum number of VBs supported by N1EGS4/N3EGS4 is 2, and the maximum number of logical ports per VB is 68. The maximum number of VBs supported by N4EGS4 is 16, and the maximum number of logical ports per VB is 68. Supports setting up to 4000 VLAN services. Supports EVPLAN services based on IEEE 802.1q Virtual Bridge and IEEE 802.1ad Provider Bridge.
Description: The EGS4 supports SVL and IVL bridge learning modes, and the learning modes of all bridges on a single board must be the same. |
| Service Specifications | Ethernet Data Frame Format | IEEE 802.3 | Supported |
| Ethernet II | Supported |
| IEEE 802.1 q/p | Supported |
| Frame Length Range | N1EGS4/N3EGS4: Supports 1518Byte to 9216Byte message length setting, supports Jumbo frames up to 9216Byte. N4EGS4: Supports 1518Byte～9600Byte message length setting, supports Jumbo frames up to 9600 Byte. |
| Mapping Method | VC-12, VC-3, VC-4, VC-12-Xv (X≤64 (N1EGS4/N3EGS4)), VC-12-Xv (X≤63 (N4EGS4)), VC-3-Xv (X≤24), VC-4-Xv (X≤8) |
| Package format | HDLC | Support |
| LAPS | Supported |
| GFP-F | Support |
| MPLS Technology | Not Supported |
| VLAN Technology | Supports 4094 VLAN tags, VLAN technology meets IEEE 802.1q/p standard. |
| Maximum uplink bandwidth | 2.5Gbit/s |
| Maximum Binding Bandwidth | |
| VCTRUNK Specifications |
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 1st to 4th and 9th to 12th VC-4s of N3EGS4/N4EGS4 can be bound as VC-12/VC-3/VC-4 channels, and other VC-4s can be bound as VC-3/VC-4 channels. The 1st to 8th VC-4 and 9th to 16th VC-4 of N3EGS4/N4EGS4 are divided into two zones, and VC-3/VC-4 cannot be bound across zones. The 1st to 4th VC-4 and 9th to 12th VC-4 of N3EGS4/N4EGS4 are divided into two zones, and VC-12 cannot be bound across zones. N1EGS4/N3EGS4 can bind up to 8 VC-4 or 24 VC-3 or 64 VC-12 per VCTRUNK. N4EGS4 can bind up to 8 VC-4s or 24 VC-3s or 63 VC-12s per VCTRUNK.
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| Protection Methods | TPS | Not supported |
| BPS | Supported |
| PPS | Support Description: PPS creation is not supported when the single board interface type is GE electrical interface. |
| DLAG | Supports the creation of a PPS when the single board interface type is a GE electrical interface. |
| LAG | Supports manual link aggregation and static link aggregation. Supports load sharing and non-load sharing. Meets IEEE 802.3ad and IEEE 802.1AX standards. |
| LCAS | Support, can realize dynamic increase, dynamic decrease and protection function of bandwidth, meet ITU-T G.7042 standard. |
| LPT | Supports point-to-point LPT and point-to-multipoint LPT, meeting Huawei's internal protocol standards. |
| STP/RSTP | Supports Rapid Spanning Tree Protocol, meeting the IEEE 802.1w standard. |
| MSTP | N1EGS4 supports |
| Synchronization | Synchronous Ethernet | Not Supported |
| 1588v2 | Not supported |
| Maintenance Features | ETH OAM | N1EGS4/N3EGS4 supports CC, LB and meets IEEE 802.1ag standard. N4EGS4 supports CC, LB, and LT to meet the IEEE 802.1ag standard; it supports OAM_Ping to meet Huawei's internal protocol standard. Supports OAM auto-discovery, far-end loopback (N1EGS4/N3EGS4 only supports initiating far-end loopback), fault detection, and link performance monitoring to meet the IEEE 802.3ah standard; supports self-loop detection to meet Huawei's internal protocol standard.
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| Test Frames | Supports test frames under GFP bearer mode. |
| Response Ping Function | Not supported |
| Port Mirroring | N4EGS4 supports mirroring of incoming ports. |
| Loopback Capability | Ethernet port PHY layer | Supports inner loopback |
| Ethernet port MAC layer | Not supported |
| VC-4 level | Not supported |
| VC-3 Level | Not Supported |
| VC-12 level | Not supported |
| RMON | Supports RMON for Ethernet performance monitoring of Ethernet ports and VCTRUNK ports. |
| Soft Reset | Supports soft reset, soft reset does not affect the service. |
| Hard Reset | Supports |
| Alarm and Performance | Provides rich alarms and performance events for easy device management and maintenance. |
| QoS | Supports CAR with a granularity of 64kbit/s. N1EGS4 supports 512 rate modes, N3EGS4 and N4EGS4 support 60 rate modes. Supports flow classification based on PORT, PORT+VLAN and PORT+SVLAN.
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| IGMP Snooping | Protocol Enable | Supports |
| Port Aging Time | Support for |
| Fast Leave | N4EGS4 Support |
| Unknown Multicast Message Discard | N4EGS4 supports |
| Static multicast table entries | Not supported |
| Hub/Spoke | Supported |
| Traffic Control | Port-based IEEE 802.3x control is supported. Description: Only EPL services support port-based flow control. |
| Traffic Monitoring | N4EGS4 supports port and VCTRUNK based traffic monitoring. |
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