| Basic functions | Processes 4xFE services. |
| Port types | Supports 10BASE-T/100BASE-TX signals. The optical ports comply with
IEEE 802.3u. |
| Functions when being used with an interface board | Provides ports on the front panel to receive/transmit 4xFE signals. |
| Port characteristics | Working modes | Auto-negotiation, 100M full-duplex, 100M half-duplex, 10M
full-duplex, and 10M half-duplex |
| Traffic control mode at ports | Auto-negotiation mode | Supported |
| Non-autonegotiation mode | Supported |
| Query/Setting of port status | Supported |
| Query of port types | Supported |
| Setting of optical power thresholds | Not supported |
| Pluggable optical module | Not supported |
| 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 MPLS tags.
- Supports a maximum of 4096 links.
|
| EPLAN service | N2EFS4/N3EFS4 boards support the EPLAN services that are based on
the IEEE 802.1d MAC bridge. - Supports the blacklist that can contain 2K records and also the
static MAC address table that can contain 2K records. The sum of
the number of records in the blacklist and the number of addresses
in the static MAC address table must not exceed 2K. The blacklist
function of N3EFS4 boards supports verification of destination MAC
addresses only.
- 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.
- N2EFS4 and N3EFS4 boards support the query of dynamic MAC
addresses.
- N1EFS4 boards do not support the query of dynamic MAC addresses.
- The maximum number of supported VBs is 16. The maximum number of
logical ports for each VB is 30.
- Queries the number of actually learned MAC addresses based on
VB+VLAN or VB+LP.
|
| EVPLAN services | - Supports data isolation based on VB+VLAN.
- The maximum number of supported VBs is 16. The maximum number of
logical ports for each VB is 30.
- Supports the setting of a maximum of 4096 VLAN services.
- Supports the EVPLAN services that are based on the IEEE 802.1q
virtual bridge.
- N3EFS4 boards support the EVPLAN services that are based on the
IEEE 802.1ad provider bridge.
|
| 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.
|
| Concatenation granularities | Supports VC-12, VC-3, VC-12-Xv (X ≤ 63), and VC-3-Xv (X ≤ 12)
granularities. |
| Encapsulation formats | HDLC | Not supported |
| LAPS | Not supported |
| GFP-F | Supported |
| MPLS technology | Supports the MPLS. |
| VLAN technology | Supports a total number of 4094 VLANs, which comply with IEEE
802.1q/p. |
| Maximum uplink bandwidth | - The maximum uplink bandwidth of an N1EFS4 board is 622 Mbit/s.
- The maximum uplink bandwidth of an N2EFS4 or N3EFS4 board is 1.25
Gbit/s.
- An EFS4 board can adapt to the bandwidth of its slot.
|
| Maximum bound bandwidth | - N1EFS4: 12xVC-3, or 63xVC-12 + 9xVC-3
- N2EFS4/N3EFS4: 24xVC-3 or 126xVC-12 + 18xVC-3
|
| VCTRUNK specifications | - The number of VCTRUNKs supported by an N1EFS4 board is 12.
- The number of VCTRUNKs supported by an N2EFS4 or N3EFS4 board is
24.
Configuration principles are as follows: - Each VC channel can be bound only to one VCTRUNK.
- VCTRUNK1 to VCTRUNK12 must be bound when a board is housed in a
slot providing 622M bit/s bandwidth of N2EFS4/N3EFS4 board.
- A VCTRUNK can be bound with the VC-12 path or VC-3 path at one
time. A VCTRUNK should not be bound with VC-12 and VC-3 paths at
the same time.
- VCTRUNK 1-VCTRUNK 12 can be bound only with lower order paths in
VC-4s numbered 1-4. VCTRUNK 13-VCTRUNK 24 can be bound only with
lower order paths in VC-4s numbered 5-8.
- A VCTRUNK can be bound with a maximum of 12 VC-3s or 63 VC-12s.
- VC-4s numbered 4 and 8 support the binding of VC-3 and VC-12 paths.
The other VC-4s support the binding of VC-3 paths only.
|
| Protection schemes | TPS | Not supported |
| BPS | Not supported |
| PPS | Not supported |
| DLAG | Not supported |
| LAG | N1EFS4 boards do not support this protection scheme. N2EFS4 and
N3EFS4 boards support manual link aggregation and the load sharing
mode that comply with IEEE 802.3ad and IEEE 802.1AX. |
| LCAS | Supported |
| LPT | - N1EFS4 boards support P2P LPT.
- N2EFS4 and N3EFS4 boards support P2P LPT and P2MP LPT.
- LPT complies with proprietary protocol.
|
| STP/RSTP | Supports the broadcast packet suppression function and RSTP, which
comply with IEEE 802.1w. |
| MSTP | Not supported |
| Synchronization | Synchronous Ethernet | Not supported |
| IEEE 1588v2 | Not supported |
| Maintenance features | ETH OAM | - N1EFS4 boards do not support the ETH OAM function.
- N2EFS4 and N3EFS4 boards support CC, LB tests, and LT tests in
compliance with IEEE 802.1ag, and OAM ping in compliance with
proprietary protocol.
- N2EFS4 and N3EFS4 boards support OAM auto-discovery, remote
loopbacks, fault detection, and link performance detection in
compliance with IEEE 802.3ah, and selfloop detection in compliance
with proprietary protocol.
|
| Test Frame | - N1EFS4 boards support test frames in Ethernet bearer mode.
- N2EFS4/N3EFS4 boards support test frames in Ethernet/GFP bearer
mode.
|
| Response to ping | Not supported |
| Port Mirroring | N3EFS4 boards support ingress mirroring. |
| Loopback capability | PHY layer at Ethernet ports | Supports inloops |
| MAC layer at Ethernet ports | Supports inloops |
| VC-4 level | Not supported |
| VC-3 level | Not supported by N3EFS4 boards N1EFS4/N2EFS4 boards support inloops and outloops. |
| VC-12 level | Not supported |
| RMON | Supports Ethernet performance monitoring at the port level. |
| Warm resets | N1EFS4/N2EFS4/N3EFS4 boards support warm resets. If a warm reset is
performed on an N1EFS4 board, traffic on the board is interrupted,
whereas if a warm reset is performed on an N2EFS4/N3EFS4 board,
traffic on the board is not interrupted. If an N2EFS4/N3EFS4 board
substitutes for an N1EFS4 board, traffic on the N2EFS4/N3EFS4 board
is not interrupted. |
| Cold resets | Supported |
| Alarms and performance events | Reports various alarms and performance events, which facilitates
the management and maintenance of the equipment. |
| QoS | - Supports the CAR. The granularity is 64 kbit/s.
- N1EFS4 boards support the service classification based on PORT,
PORT+VLAN, or PORT+VLAN PRI.
- N2EFS4 and N3EFS4 boards support the flow classification based on
PORT, PORT+VLAN, or PORT+VLAN+VLAN PRI.
- N3EFS4 boards support the flow classification based on PORT+SVLAN.
|
| IGMP Snooping | Protocol enabling | Supported |
| Port aging time | Supported |
| Fast leave | Not supported |
| Discarding of unknown broadcast packets | Not supported |
| Static broadcast entry | Not supported |
| Hub/Spoke | Not supported |
| Traffic control | Supports the port-based traffic control function that complies with
IEEE 802.3x.NOTE:Only EPL services support port-based traffic control. |
| Traffic monitoring | N3EFS4 boards support port-based and VCTRUNK-based traffic
monitoring. |
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