24-Port VDSL2 IP DSLAM VC-2402 / VC-2402-48

Model

VC-2402 / VC-2402-48 

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

• DSL 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:

Upstream and downstream non-overlapped mode

Auto retrain

      Scrambling functionality

      FEC functionality

      Trellis coding

      Bit-swap

      Interleaving selection

      Target, maximum and minimum SRN margins programmable per port basis, independently for UP/DOWN directions

       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:

Automatic source MAC learning

Static source MAC address table provisioning

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

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:

Per bridge port rate limiting

- Profile based configuration

- Ingress: all kinds of traffic

- Egress: unicast traffic

- Apply to line bridge port

Per bridge port per VLAN rate limiting

- Profile based configuration

- Ingress: all kinds of traffic

- Egress: unicast traffic

- Apply to line bridge port

Per bridge port broadcast traffic rate limiting

- Profile based configuration

- Apply to line / trunk bridge port

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