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V4.1 BSTU4 Features and Applications Copyright © Siemens Schweiz AG 2007.

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Presentation on theme: "V4.1 BSTU4 Features and Applications Copyright © Siemens Schweiz AG 2007."— Presentation transcript:

1 V4.1 BSTU4 Features and Applications Copyright © Siemens Schweiz AG 2007

2 page 2Siemens Switzerland Ltd ULAF+ V4-1Draft..ppt S-CH EIP A/frj Target for BSTU4 features  Extend and optimize the features of 4 port layer 2 switch compared with STU4 according to the demands and needs of ULAF+ customers  Enable the flexible application for various Ethernet services without external switch  Enable the realization of Ethernet services via TDM and packet data backbone networks with state-of-the-art configuration and maintenance using QoS and CoS according to IEEE standards

3 page 3Siemens Switzerland Ltd ULAF+ V4-1Draft..ppt S-CH EIP A/frj BSTU4: New features compared with STU4 STU4 4 ports L2 switch VLAN transparent BSTU4 Embedded Clock Operation Integrated into ULAF+V5.0 VLAN Support (up to 16 VLANs) VLAN Termination + Q-in-Q QoS Port prioritizationSupport of BSRU Link aggregation 4, 8 or 16 wire pairs scalable

4 page 4Siemens Switzerland Ltd ULAF+ V4-1Draft..ppt S-CH EIP A/frj BSTU4: 4 port L2-switch  Individually configurable 10/100BaseTX ports IEEE 802.3u (using LCT or AccessIntegrator EM ULAF+) Plug-in: 3 ports at the front and one connected to the backplane of ULAF+ V5.0 subrack Desktop: 4 ports  Ports can be individually deactivated to save power in remote powered locations  10BaseT/100BaseTX  Full- / half duplex operation; Auto negotiating  Link Failure Propagation (LFP)  Flow control (pause frames or back pressure)  Automatic MDI / MDI-X crossover  VLAN and QoS supported  Handling of oversized frames up to 2000 bytes  Link Aggregation (IEEE 802.3ad)  Self-learning switch (1024 MAC addresses  Ingress Rate Limiting  Broadcast Storm Protection  VLAN IEEE 802.1Q support  Provider VLAN IEEE 802.1ad  16 simultaneous active VLAN

5 page 5Siemens Switzerland Ltd ULAF+ V4-1Draft..ppt S-CH EIP A/frj Quality of Service  Priority Queues 4 priority queues Transmit Queue Algorithms : “Weighted Fairness Queuing” (WFQ) “Strict Priority Queuing” (SP)  Prioritization Based on port Based on IEEE 802.1p Based on DSCP Based on VLAN ID

6 page 6Siemens Switzerland Ltd ULAF+ V4-1Draft..ppt S-CH EIP A/frj Applications (1): STU4 versus BSTU4 STU4 QoS -- Based on port -- Based on IEEE 802.1p -- Based on DSCP -- Based on VLAN ID STU4 C-VLAN BSTU4 C-VLAN: Customer Virtual LAN SHDSL or network connections C-VLAN : External switch

7 page 7Siemens Switzerland Ltd ULAF+ V4-1Draft..ppt S-CH EIP A/frj Applications (2): Point-to-point connections BSTU4 10/100BaseTx SHDSL via 1…4 wire pairs C-VLAN A C-VLAN A BSTU4 C-VLAN B VoIP C-VLAN B VoIP -Classify ingress frames (QoS) based on Port / 802.1p / DSCP/VLAN -Limit bandwidth

8 page 8Siemens Switzerland Ltd ULAF+ V4-1Draft..ppt S-CH EIP A/frj Applications (3): Connections via TDM based backbone network BSTU4 C-VLAN A BSTU4 VoIP C-VLAN A C-VLAN B QSTU TDM Network C-LAN B -Classify ingress frames (QoS) based on Port / 802.1p / DSCP/VLAN -Limit bandwidth

9 page 9Siemens Switzerland Ltd ULAF+ V4-1Draft..ppt S-CH EIP A/frj Applications (4): Connections via Metro Ethernet Network BSTU4 10/100BaseTx C-VLAN A BSTU4 VoIP P-VLAN Termination Points -Add P-VLAN ID -Classify ingress frames (QoS) - Limit bandwidth C-VLAN A C-VLAN B BSTU4 C-LAN B P-VLAN (Provider VLAN) C-VLAN A VoIP C-LAN B BSTU4 ULAF+ V5 subrack GbE Metro Ethernet Network

10 page 10Siemens Switzerland Ltd ULAF+ V4-1Draft..ppt S-CH EIP A/frj Integration in ULAF+ V5  BSTU4 plug-in version with direct access to backplane of ULAF+ V5.0 subrack (S3105-B628-A210)  No Ethernet cabling necessary

11 page 11Siemens Switzerland Ltd ULAF+ V4-1Draft..ppt S-CH EIP A/frj Applications in ULAF+ V5 using BSTU4 plug-in BSTU4 plug-in ULAF+ V5 subrack* BSTU4 plug-in GbE uplink (optical or copper) WAN C-VLAN A C-VLAN B Packet Network BSTU4 *S3105-B628-A210

12 page 12Siemens Switzerland Ltd ULAF+ V4-1Draft..ppt S-CH EIP A/frj MCS Comparison with another copper bonding schemes *) Not yet implemented in ULAF+ systems. Can be implemented on customer request.

13 page 13Siemens Switzerland Ltd ULAF+ V4-1Draft..ppt S-CH EIP A/frj MCS Multi Channel Synchronisation  Bundling of 2..4 channels over transparent or structured TDM networks  Resiliency  Independent Rx- and Tx- data streams  Network delta delay compensation  Minimised additional delay caused by MCS (< 100µs)  Autonomous detection and correction of wire pair or channel interchange  Proprietary and patented inverse multiplexing algorithm

14 page 14Siemens Switzerland Ltd ULAF+ V4-1Draft..ppt S-CH EIP A/frj Embedded clock operation BSTU desktop units are equipped with 2,048MHz clock input/output interface (BNC 75 Ohm). High quality clock can be provided to the remote location usnig synchronous SHDSL transmission. SHDSL via 1…4 wire pairs BSTU4 (RT) ULAF+ subrack 2,048MHz clock input e.g.from SDH Timing output Mobile network BTS / NodeB BSTU4 COT BSTU4 (COT) 2,048MHz clock input Timing output SHDSL via 1…4 wire pairs BSTU4 (RT)

15 page 15Siemens Switzerland Ltd ULAF+ V4-1Draft..ppt S-CH EIP A/frj BSTU4 scalability 2x 4 wire pairs with Link Aggregation, up to 45,6Mbit/s NT BSTU4 BSRU BSRU BSTU4 LT P …4 NT LT P P2

16 page 16Siemens Switzerland Ltd ULAF+ V4-1Draft..ppt S-CH EIP A/frj BSTU4 DSLAM Backhaul with Link Aggregation  Link Aggregation (IEEE 802.3ad)  Ethernet Frames are distributed among different links (based on MAC-Addresses)  Up to 91,2Mbit/s over up to 16 wire pairs can be aggregated  Easy to set-up and configure with Ulaf+ LCT or AccessIntegrator BSTU4 22.8MBit/s Incoming Packets with different MAC addresses Σ=91,2Mbit/s e.g. DSLAM Metro Ethernet Network

17 page 17Siemens Switzerland Ltd ULAF+ V4-1Draft..ppt S-CH EIP A/frj Siemens Switzerland Ltd. International Sales EIP A Albisriederstrasse 245 CH-8047 Zurich Tel.: Fax: homepage: Your contact Sales


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