| Basic Functions | Handles 2-way 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). N3EGS2 also supports 1000BASE-T Ethernet electrical interface, supports self-negotiation function, can be self-negotiated to 10M, 100M or 1000M rate. With the pluggable SFP electrical interface, the transmission distance can be up to 100m.
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| with cable outlet panel | Adopts direct cable outlet panel. |
| Interface Characteristics | Working Mode | GE electrical port: supports self-negotiation, 1000M full-duplex, 100M full-duplex, 10M full-duplex (only N3EGS2 supports GE electrical port). GE optical port: supports self-negotiation, 1000M full duplex. |
| Port Flow Control Methods | Self-negotiation | Support |
| 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 4096 LINK services.
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| EPLAN | Maximum support for 2K blacklists and 2K static MAC addresses, shared 2K. blacklists of N3EGS2 single boards only support destination MAC address checksums, not source MAC address checksums. Support source MAC address self-learning function, MAC address table size is 16K, support MAC address aging time setting and query. Supports static MAC routing configuration. The maximum number of VBs supported is 2, and the maximum number of logical ports per VB is 30. N3EGS2 supports EPLAN service based on IEEE 802.1d MAC bridge.
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| EVPLAN | 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 30. Supports the setting of up to 4096 VLAN services. Supports EVPLAN services based on IEEE 802.1q Virtual Bridge.
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| Service Specifications | Ethernet Data Frame Format | IEEE 802.3 | Supports |
| Ethernet II | Supported |
| IEEE 802.1 q/p | Supported |
| Frame Length Range | Support 1518Byte～9600Byte message length setting, support Jumbo frames up to 9600Byte. |
| Mapping Method | N2EGS2: VC-12, VC-3, VC-12-Xv(x≤63), VC-3-Xv(x≤12) N3EGS2: VC-12, VC-3, VC-12-Xv (x≤63), VC-3-Xv (x≤24), VC-4-Xv (x≤8) |
| Package format | HDLC | Not supported |
| LAPS | Not supported |
| GFP-F | Supported |
| MPLS Technology | Supported |
| VLAN Technology | Supports 4094 VLAN tags, VLAN technology meets IEEE 802.1q/p standard. |
| Maximum uplink bandwidth | 2.5Gbit/s, supports slot bandwidth adaption. |
| Maximum binding bandwidth | N2EGS2: 48xVC-3 or 252xVC-12+36xVC-3 N3EGS2: 16xVC-4, 48xVC-3 or 252xVC-12+36xVC-3 |
| VCTRUNK Specifications |
Quantity: 48 Configuration Features: After each level of VC channel is used by one VCTRUNK binding, other VCTRUNKs can no longer be used. When the slot bandwidth is 1.25G bit/s, VCTRUNK1 to VCTRUNK24 must be bound. The same VCTRUNK can only bind one level of channel, and cannot bind both VC-12 and VC-3 channels. VCTRUNK1 to VCTRUNK12 of N2EGS2 can only bind low-order services of VC-4 channels from 1 to 4, VCTRUNK13 to VCTRUNK24 can only bind low-order services of VC-4 channels from 5 to 8, VCTRUNK25 to VCTRUNK36 can only bind low-order services of VC-4 channels from 9 to 12, and VCTRUNK37 to VCTRUNK48 can only bind low-order services of VC-3 channels. to VCTRUNK48 can only bind low-order services of 13 to 16 VC-4 channels. N2EGS2 can bind up to 12 VC-3s or 63 VC-12s per VCTRUNK. The N3EGS2 has no VCTRUNK binding limitations and supports a maximum of 24 VC-3 bindings per VCTRUNK. N3EGS2 can bind up to 8 VC-4s or 24 VC-3s or 63 VC-12s per VCTRUNK. N2EGS2 4th, 8th, 12th, and 16th VC-4 can be bound to both VC-3 and VC-12 channels, while other VC-4s can only be bound to VC-3 channels. N3EGS2 4th, 8th, 12th, and 16th VC-4s can be bound as VC-12/VC-3/VC-4 channels, other VC-4s can be bound as VC-3/VC-4 channels.
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| Protection Methods | TPS | Not supported |
| BPS | Supported by N3EGS2 |
| PPS | Not Supported |
| DLAG | Not Supported |
| LAG | Supports manual link aggregation and load sharing to meet IEEE 802.3ad and IEEE 802.1AX standards. |
| LCAS | Support, can realize dynamic increase, dynamic decrease and protection function of bandwidth, satisfy ITU-T G.7042 standard. |
| LPT | N2EGS2 supports point-to-point LPT. N3EGS2 supports point-to-point LPT and point-to-multipoint LPT. It meets Huawei's internal protocol standards. |
| STP/RSTP | Supports the broadcast message suppression function and fast spanning tree protocol, and meets the IEEE 802.1w standard. |
| MSTP | does not support |
| Synchronization | Synchronous Ethernet | Not supported |
| 1588v2 | Not supported |
| Maintenance Features | ETH OAM | The N2EGS2 does not support the ETH OAM feature. N3EGS2 supports CC, LB, and LT to meet the IEEE 802.1ag standard; it supports OAM_Ping to meet Huawei's internal protocol standard. N3EGS2 supports OAM auto-discovery, remote loopback, fault detection, and link performance monitoring, meeting the IEEE 802.3ah standard; it supports self-loop detection, meeting Huawei's internal protocol standard.
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| Test Frames | |
| Responding to Ping Function | Does not support |
| Port Mirroring | N3EGS2 supports incoming port mirroring. |
| Loopback Capability | Ethernet port PHY layer | Supports inner loopback |
| Ethernet port MAC layer | Supports inner loopback |
| VC-4 level | Not supported |
| VC-3 level | N2EGS2 supports inner loopback and outer loopback, N3EGS2 does not. |
| VC-12 level | Not supported |
| RMON | Supports port-level Ethernet performance monitoring. |
| Soft Reset | N2EGS2 supports soft reset, soft reset interrupts service.N3EGS2 supports soft reset, soft reset does not affect service. When N3EGS2 is compatible to replace N2EGS2, it supports soft reset and soft reset does not affect service. |
| Hard reset | Support |
| Alarm and Performance | Provides rich alarms and performance events for easy device management and maintenance. |
| QoS | Supports CAR with a granularity of 64kbit/s. Supports flow classification based on PORT, PORT+VLAN, PORT+VLAN+VLAN PRI.
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| IGMP Snooping | Protocol Enable | Supports |
| Port Aging Time | Support for |
| Fast Leave | N3EGS2 Support Description: When the N3EGS2 is a compatible replacement for the N2EGS2, the IGMP Snooping Fast Leave feature is also supported. |
| Unknown Multicast Message Discard | N3EGS2 supports |
| Static multicast table entries | N3EGS2 supports |
| Hub/Spoke | N3EGS2 supports |
| Traffic Control | Supports port-based IEEE 802.3x flow control. Description: Only EPL services support port-based flow control. |
| Traffic Monitoring | N3EGS2 supports port and VCTRUNK based traffic monitoring. |
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