| Hardware Specification |
| Case |
1U high box-type with a rack-mountable enclosure |
| Ports |
Uplink： 2 x Gigabit Ethernet Combo ports (10/100/1000 Base-T and SFP)
Console：1 x RS-232 Serial Port (9600, 8, N, 1)
MGMT：1 x RJ-45 10/100 Ethernet port for local management
HK / ALM：1 x RJ-50 connector for four housekeeping inputs and one alarm contact output
LINE：1 x RJ-21 Connector
PHONE：1 x RJ-21 Connector |
| LED Indicators |
1 x SYS LED
1 x ALM LED
2 x Link LEDs
2 x Act LEDs
24 x VDSL LEDs |
| Software Specification |
| VDSL / VDSL2 Standard |
• VDSL / VDSL2 functions comply with ITU-T G.993.1 and G.993.2.
• Supports Packet Transport Mode (PTM) per G.993.1 and G.993.2
when operating in VDSL mode
• Supports provisioning the VDSL optional band (25K to 138K Hz)
usage
• VDSL OAM communication channels including IB (Indicator Bits)
channel, EOC (Embedded Operations Channel),and VOC (VDSL
Overhead control Channel)
• Supports selectable band plan A (profile 998, Annex A of G.993.1
and plan B (profile 997,Annex B of G.993.1)for each VDSL
line on a per port basis
• Line rate of a VDSL2 line port can reach symmetrical 100/100 Mbps
or asymmetrical 100/50 Mbps at an ideal loop condition
• Supports selectable spectrum profile of 8a/b/c/d, 12a/b, 17a, and
30a for frequency bands (Annex A, B and C) defined in G.993.2
when operating in VDSL2 mode |
| Line Interface |
• 24 xDSL subscribers lines and supports provisioning of
the operation modes (VDSL/VDSL2, ADSL2/2+) with a default of
VDSL2 on a per port basis
• Handshake procedure of each DMT xDSL circuit complies with ITU-T
G.994.1
• Physical layer management of each DMT xDSL circuit complies with
ITU-T G.997.1
• xDSL subscriber interfaces support the following functions:
1.Upstream and downstream non-overlapped mode
2.Auto retrain
3.Scrambling functionality
4.FEC functionality
5.Trellis coding
6.Bit-swap
7.Interleaving selection
8.Target, maximum and minimum SRN margins programmable per
port basis, independently for UP/DOWN directions
9.Tx power adjustment while the SNR margin detected from the
xDSL line exceeds the configured maximum SNR margin
• Rate adaptation modes defined in ITU-T G.992.5 and G.997.1
including Fixed (manually configured) and Adaptive at Init modes.
• xDSL subscriber interface is able to support Fast Channel or
Interleaved Channel independently for each xDSL port
• Supports Upstream Power Back-off (UPBO) while received power
exceeds configured max-aggregation-PSD in the
upstream direction
• Supports detection of Dying Gasp message from xDSL CPE
and indicate a CPE power loss alarm in the management interface.
This is cleared upon the commencement of a retrain operation
(i.e. when the CPE becomes active once more) |
| POTS Splitter |
• Compliant with ETSI TS 101 952-1-1 option A for European, ETSI
TS 101 952-1-3 for Annex B European ISDN, or ANSI 600
• The splitter / low pass filter is passive element. Even the system is
loss of power (power supply fails), the POTS service is still OK |
| Management |
• In-band management: provide all system OAM&P functions:
software updates, configurations import / export, and management
system interaction through trunk port
• Out-band management: provide two kinds of management
interfaces. One is the RS-232 local craft interface for basic
provisioning. Interface default configuration: 9600 baud rate,8-bit
data,none parity, and 1 stop bit. The other is a 10/100 Base-T
auto-sensing Ethernet Interface |
| Ethernet / IP Functionality |
• Supports L2 bridge functionalities defined in IEEE 802.1d including:
1.Automatic source MAC learning
2.Static source MAC address table provisioning
3.Maximum 8K MAC addresses allowed to be learned into MAC
table per system; 1 ~ 4095 MAC addresses per trunk
bridge port with a limitation of maximum 4096 MACs
for total number assigned to two trunk interfaces;
0 ~ 512 MAC addresses per line bridge port
4.Provision-able aging time for MAC address table with a default
of 300 seconds on a per bridge port basis
• The uplink interfaces support Spanning Tree Protocol (STP)
per IEEE 802.1D and Rapid Spanning Tree Protocol (RSTP) per
IEEE 802.1w
• Supports DHCP Server (IP allocation to DSL users),
DHCP transparent forward, and DHCP relay agent option-82
functionality (the value within Agent Circuit ID and Agent Remote
ID sub-options are configurable) |
| VLAN |
• IEEE 802.1q Port-based VLAN and Protocol- based VLAN
• 512 active VLANs simultaneously and the VLAN ID ranges from
1 to 4094
• 2 layers VLAN stacking (“Q-in-Q”)
• VLAN translation
• Port isolation functionality. When port isolation is enabled, no
Layer-2 bridging between different ports (or subscriber lines) is
supported in a VLAN
• Static VLAN group and membership provisioning per bridge port
basis
• Configuring a port to be VLAN transparent (i.e., enabled for TLS) |
| Multicast |
• Multicast forwarding with IGMP Snooping v1 [RFC 1112] and v2
[RFC 2236], and Multicast MAC address mapping
• Supports up to 512 concurrent IGMP groups (multicast channels)
per system and a multicast channel has a maximum of 512 copies
• Profile-based Multicast Access Control (up to 24 profiles) and assign
any profile to a subscriber interface (the maximum number of
registered multicast channels within a profile is 512)
• Able to limit the maximum number (0 ~ 20) of concurrent multicast
groups to be joined per bridge port
• IGMP snooping/proxy v1, v2, and v3
• Selection between IGMP proxy and IGMP snooping
• Fast and Normal Leave modes |
| Security |
• ARP anti-Spoofing and MAC anti-Spoofing
• Layer-2 frame filtering based on source/destination MAC addresses
• Layer-3 filtering based on IP header including source/destination IP
address, protocol ID, and TCP/UDP destination port number
• Supports filtering out broadcast frames (destination MAC Address
0xFFFFFFFFFFFF) in the downstream direction. When this option is
activated, only protocol-specific broadcasts (DHCP, ARP)
are allowed to be forwarded to downstream users.
• Supports secured forwarding that forces upstream traffic to the
specific gateway, by means of replying upstream ARP request with
MAC address of default gateway |
| QoS |
• Supports Ethernet rate limit function including:
1.Per bridge port rate limiting
- Profile based configuration
- Ingress: all kinds of traffic
- Egress: unicast traffic
- Apply to line bridge port
2.Per bridge port per VLAN rate limiting
- Profile based configuration
- Ingress: all kinds of traffic
- Egress: unicast traffic
- Apply to line bridge port
3.Per bridge port broadcast traffic rate limiting
- Profile based configuration
- Apply to line / trunk bridge port
4.Per VLAN rate limiting
- Non-profile based
- Broadcast: support rate limiting for PVIDs of trunk interfaces
with an internal maximum rate 500K bps per PVID VLAN
- Flooding: support rate limiting for all defined VLANs, trunk / line
• Supports Three Color Marking (TCM) rate limit policer in
accordance with the Metro Ethernet Forum (MEF) Bandwidth
Profile and RFCs 2697 & 2698
• Supports VLAN priority queue per IEEE 802.1p (4 priority queues
for 8 802.1p CoS value. The mapping between 4 priority queues
and 8 priority values are configurable.)
• Supports selectable adopted priority queue mechanisms according
to Strict Priority Queue (SPQ) and Weighted Fair Queue (WFQ)
• Supports traffic classification by re-assigning CoS (p-bit) value
according to CoS (802.1p priority bit), VLAN ID, ToS, DSCP,
Source / Destination IP address, or Source / Destination MAC
address
• Configurable mapping between ATM PVC and 802.1p CoS for
received untagged frame from subscriber port |
| ATM and Interworking |
• Supports 8 PVCs per subscriber line; VPI range is from 0 to 255
and VCI range from 32 to 65535 conforming to ATM Forum
UNI 3.1/4.0, PVCs only
• Supports multi-protocol encapsulation over ATM per RFC 2684 /
RFC 1483 for bridged mode, LLC encapsulation method only
• Supports AAL5 per ITU-T I.363.5
• Commit the supported ATM service categories in the increasing
order of UBR, CBR on a per port basis
• Provide PCR (peak cell rate) configurable parameter for CBR
service
• Supports profile-based ATM traffic management (up to 16 traffic
descriptors with one default and 15 user-configurable descriptors)
• Supports PPPoE transparent forwarding and PPPoE intermediate
agent |
