Transcript
MileGate 3510 GPON OLT for high-density passive optical networks
■■ High-density chassis with up
to 96 GPON ports ■■ Connects up to 12,288
residential and business subscribers (1:128 split ratio) ■■ Up to 2x 640 Gbps layer-3
non-blocked switch fabric ■■ Optimised for VoIP, IP-TV,
high-speed internet data ■■ Fully redundant system
architecture ■■ Supports a wide range of
different SFP/SFP+ modules for customized connections ■■ Integrated in UNEM
MileGate 3510
MileGate 3510 is a modular GPON OLT platform. It provides flexible and high capacity PON access and redundant 4x 10 GbE uplinks, scalability and line rate performance with a 640 Gbps non-blocking switch fabric. Due to the highly flexible hardware configurations with multiple GPON units, users can fully customize it to local network requirements. For GPON, the PON layer is terminated on the interface unit and translated to Ethernet uplink to be transported through an Ethernet/IP environment.
MileGate 3510 can be equipped with up to 6 service interface units and 2 network interface units. For improved system reliability, it adopts the design of full redundancy architecture with dual SFUs (Switch Fabric Unit), PSUs (Power Supply Units) and FANs (Fan Units). ■■ PON benefits
The PON technology targets at improving performance and interoperability, and adds support for new applications, services, and deployment scenarios.
Among these changes are improvements in data rate and reach performance, diagnostics, and stand-by mode, to name a few. The MileGate 3510 introduces a point-to-multipoint concept with the PON technology, which enables a cost-effective FTTx service. The reason why PON is considered as a cost-effective solution is its usage of a passive splitter rather than an active switching system.
16-port GPON interface units (SFP optic modules)
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4-port 10G Ethernet network interface units
Switching Fabric Unit Switching capacity: 640 Gbps 1-port RS-232 for console access 1-port GTX for NMS
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Figure 1: Redundant system architecture
The benefits of the passive splitter are as follows: ■■
No power supply is needed.
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No maintenance is needed.
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The splitter does not need any fibre optic transceiver. The number of fibre optic transceivers in the network is minimized.
■■ Equipment options
■■ Maximum reliability
The MileGate 3510 is a robust chassis that can be equipped with different plug-in units. So the access node can be optimally adopted to the local requirements. With up to 17 plug-in modules the maximum expansion stage is:
To aditionally increase the system reliability, MilaGate 3510 supports redundant operation. In this case dual core units will be used. Figure 1 illustrates the redundancy scheme used for the MileGate 3510.
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■■ Dynamic Bandwidth Allocation
(DBA)
In GPON MileGate 3510 supports DBA algorithms based on two kinds of methods: Non-Status Reporting (NSR) and Status Reporting (SR), both NSR and SR DBA (G.984.3). Through Dynamic Bandwidth Allocation (DBA), a PON can be oversubscribed for upstream traffic.
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6-slot: Subscriber Interface Unit (16 SFPs per unit) 2-slot: Network Interface Unit 2-slot: Switching Fabric Unit (640 Gbps switching capacity per unit) 1-slot: Clock Interface Unit (provides network synchronization in order to support Mobile Backhaul over PON applications (ToD/1pps and SyncE, future release)
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1-slot: Offload Processor Unit
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2-slot: Power Supply Unit
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2-slot: Fan Module Unit
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1-slot: Dust Filter Unit
The active switch is internally linked to all GPON units. The switch receives traffic from the GPON units and updates their own forwarding database in the same manner so that they can keep identical data to make a forwarding decision. The active switch can send traffic back to the interface units and receive traffic from these for address learning. The power feeding of the MileGate 3510 is provided by up to two power supply units (PSUs), which can be installed redundantly to guarantee highest availability.
subscriber and also can be a gateway of the local network.
■■ Network architecture
MileGate 3510 is a network element, which includes the necessary service adaptation functions to support the delivery of multiple services, such as Ethernet, IP telephony, and video services. MileGate 3510 provides robustness in operation. Adding or removing ONTs doesn't affect traffic of subscribers on other ONTs even on the same OLT port. Up to 128 termination points can be attached to a GPON OLT port via passive optical splitter.
There are different possible deployment topologies for PON networks, which differentiate from each other basically from the place the optical fibre is terminated. Depending on the subscriber type and desired topology of the network, the operator may adopt:
GPON
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FTTC (Fibre to the Curb)
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FTTB (Fibre to the Building)
Local or remote configuration by CLI and SNMP is supported by MileGate 3510 as well.
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Large scale GPON deployments with MileGate 3510 can easily be operated with the network management system UNEM.
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■■ Network management
In case of very high bandwidth requirement per user, scenarios without splitters offering 2.5 Gbps/1.25 Gbps or 1.25 Gbps/1.25 Gbps (downstream/upstream) data
An ONT connects the user specific network to PON. The ONT can be occupied by a single
e Gat Mile3510
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rate can also be deployed by connecting only one single user on a GPON port.
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GPO Figure 2: Different network architectures with MileGate 3510
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General Function Number of slots for units Slots for GPON units Slots for network units Slots for switch units GPON unit Number of interfaces per unit Redundancy Max. power consumption per unit Laser type Transmission distance GPON OLT compliancy Network units Number of interfaces per unit Redundancy (hot-standby) Max. power consumption per unit Switch units Redundancy (hot-standby) Max. power consumption per unit Standards supported Spanning Tree Protocol supported Jumbo frame supported Layer-3 features Multicast features Quality of Service Standards supported
Security Standards supported
Management Interface position Ethernet interface for local management Serial interface Standards supported ONT management
Mechanics Dimensions (W x H x D) Weight Power supply Input voltage Operation environment Operation temperature Humidity
Modular GPON OLT 17 6 2 2 16x GPON SFP Yes, with two switch units 63.4 W Laser diode class 1 (defined in IEC 60825-1) Up to 20 km with single-mode fibre Class B+ according to ITU-T G.984.2 Class C+ according to ITU-T G.984.2 4 x 10GBase-R (SFP+) yes 39.7 W yes 111.4 W Standard Ethernet bridging, link aggregation, 4 k active VLANs for 802.1q tagged frame STP, RSTP, MSTP Up to 9 k 16 k/8 k routing entries for IPv4/IPv6, static routing, RIPv1/v2, OSPFv2, BGPv4, Virtual Router Redundancy Protocol (VRRP) IGMPv1/v2/v3, 4k L2 and L3 multicast entries, IGMP snooping, IGMP proxy, IGMP static join, Multicast VLAN Registration (MVR) Traffic scheduling (SP, WRR, DWRR) ,8 queues per port, port rate limit with ingress/ egress shaping, conditional rate limiting Queue mapping according to ingress/egress port, MAC, 802.1q, 802.1p, ToS/DSCP, IP SA/DA, TCP/UDP Access control lists based on port, MAC address, EtherType, IP SA/DA, IP multicast address, TCP/UDP Storm control for broadcast, multicast and unknown unicast packets 802.1x MAC/port-based authentication, DoS protection, outband management, IP source guard, secure shell (SSH) On switch units 10/100/1000Base-T (RJ45) CLI RS-232 Serial/Telnet (CLI), SNMPv1/v2/v3, DHCP server, client, relay with option 82, single IP management, RMON, Syslog, Link Layer Discovery Protocol (LLDP) ITU-T G.984.4 ONT Management & Control Interface (OMCI) Remote ONT/ONU management Automatic ONT ranging 482.6 mm x 265.9 mm x 280.0 mm 9.1 kg −48/60 V DC -25 to 55°C 0 % to 90 % (non-condensing)
Looking for more information? Find your local contact on www.keymile.com or contact us:
[email protected].
© KEYMILE 2017-04-24 V002. Our products are subject to continuous development and we reserve the right to amend specifications without notice. Some functionality is subject to a feature license.
Technical data
