Transcript V4.1 BSTU4 Features and Applications

V4.1 BSTU4 Features and Applications
Copyright © Siemens Schweiz AG 2007
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
ULAF+ V4-1Draft..ppt S-CH EIP A/frj
 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
page 2
Siemens Switzerland Ltd
BSTU4: New features compared with STU4
Integrated into
ULAF+V5.0
Embedded Clock
Operation
VLAN Termination
+ Q-in-Q
STU4
4 ports L2 switch
VLAN transparent
Support of BSRU
QoS
Link aggregation
4, 8 or 16 wire pairs scalable
Port prioritization
BSTU4
page 3
Siemens Switzerland Ltd
ULAF+ V4-1Draft..ppt S-CH EIP A/frj
VLAN Support
(up to 16 VLANs)
BSTU4: 4 port L2-switch
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)
page 4
 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
Siemens Switzerland Ltd
ULAF+ V4-1Draft..ppt S-CH EIP A/frj
 Individually configurable
Quality of Service
 Priority Queues
• 4 priority queues
• Transmit Queue Algorithms :
ULAF+ V4-1Draft..ppt S-CH EIP A/frj
“Weighted Fairness Queuing” (WFQ)
“Strict Priority Queuing” (SP)
 Prioritization
• Based on port
• Based on IEEE 802.1p
• Based on DSCP
• Based on VLAN ID
page 5
Siemens Switzerland Ltd
Applications (1): STU4 versus BSTU4
STU4
STU4
C-VLAN
SHDSL or network
connections
C-VLAN
: External switch
page 6
BSTU4
BSTU4
C-VLAN
QoS
-- Based on port
-- Based on IEEE 802.1p
-- Based on DSCP
-- Based on VLAN ID
C-VLAN: Customer Virtual LAN
Siemens Switzerland Ltd
ULAF+ V4-1Draft..ppt S-CH EIP A/frj
C-VLAN
Applications (2): Point-to-point connections
10/100BaseTx
10/100BaseTx
C-VLAN
A
BSTU4
SHDSL via 1…4 wire pairs
C-VLAN
B
VoIP
page 7
-Classify ingress frames (QoS)
based on Port / 802.1p / DSCP/VLAN
-Limit bandwidth
BSTU4
C-VLAN
B
VoIP
Siemens Switzerland Ltd
ULAF+ V4-1Draft..ppt S-CH EIP A/frj
C-VLAN
A
Applications (3): Connections via TDM based
backbone network
C-VLAN
A
BSTU4
QSTU
C-VLAN
B
VoIP
page 8
BSTU4
TDM Network
QSTU
C-LAN
B
-Classify ingress frames (QoS)
based on Port / 802.1p / DSCP/VLAN
-Limit bandwidth
VoIP
Siemens Switzerland Ltd
ULAF+ V4-1Draft..ppt S-CH EIP A/frj
C-VLAN
A
Applications (4): Connections via Metro Ethernet
Network
ULAF+ V5 subrack
C-VLAN
A
C-LAN
B
BSTU4
10/100BaseTx
C-VLAN
A
GbE
BSTU4
Metro Ethernet Network
BSTU4
C-VLAN
A
C-VLAN
B
VoIP
BSTU4
BSTU4
P-VLAN (Provider VLAN)
P-VLAN Termination Points
-Add P-VLAN ID
-Classify ingress frames (QoS)
- Limit bandwidth
page 9
C-LAN
B
VoIP
Siemens Switzerland Ltd
ULAF+ V4-1Draft..ppt S-CH EIP A/frj
VoIP
page 10

BSTU4 plug-in version with direct
access to backplane of ULAF+ V5.0
subrack (S3105-B628-A210)

No Ethernet cabling necessary
ULAF+ V4-1Draft..ppt S-CH EIP A/frj
Integration in ULAF+ V5
Siemens Switzerland Ltd
Applications in ULAF+ V5 using BSTU4 plug-in
C-VLAN A
GbE uplink
(optical or copper)
ULAF+ V5 subrack*
BSTU4
WAN
BSTU4 plug-in
BSTU4 plug-in
C-VLAN B
*S3105-B628-A210
page 11
Siemens Switzerland Ltd
ULAF+ V4-1Draft..ppt S-CH EIP A/frj
Packet Network
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.
page 12
Siemens Switzerland Ltd
MCS
Multi Channel Synchronisation
 Bundling of 2..4 channels over transparent or
structured TDM networks
ULAF+ V4-1Draft..ppt S-CH EIP A/frj
 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
page 13
Siemens Switzerland Ltd
Embedded clock operation
2,048MHz clock input
e.g.from SDH
ULAF+ subrack
BSTU4 (RT)
SHDSL via 1…4 wire pairs
Mobile network BTS / NodeB
Timing output
BSTU4 COT
2,048MHz clock input
SHDSL via 1…4 wire pairs
BSTU4 (RT)
Timing output
BSTU4 (COT)
page 14
Siemens Switzerland Ltd
ULAF+ V4-1Draft..ppt S-CH EIP A/frj
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.
BSTU4 scalability
2x 4 wire pairs with Link Aggregation, up to 45,6Mbit/s
BSRU
BSRU
P1
1
2
1
2
P2
1
2
1
2
1
2
1
2
1
2
1
2
1...
…4
LT
LT
P1
page 15
BSTU4
NT
P1
P2
NT
P1
Siemens Switzerland Ltd
ULAF+ V4-1Draft..ppt S-CH EIP A/frj
BSTU4
BSTU4
DSLAM Backhaul with Link Aggregation
Σ=91,2Mbit/s
e.g. DSLAM
BSTU4
BSTU4
BSTU4
BSTU4
Metro Ethernet
Network
BSTU4
22.8MBit/s
22.8MBit/s
22.8MBit/s
BSTU4
Incoming Packets with
different MAC addresses
BSTU4
BSTU4
 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
page 16
Siemens Switzerland Ltd
ULAF+ V4-1Draft..ppt S-CH EIP A/frj
22.8MBit/s
Your contact
Sales
ULAF+ V4-1Draft..ppt S-CH EIP A/frj
Siemens Switzerland Ltd.
International Sales EIP A
Albisriederstrasse 245
CH-8047 Zurich
Tel.: + 41-585 586 144
Fax: + 41-585 585 414
e-mail: [email protected]
homepage: http://www.siemens.ch/ulaf
page 17
Siemens Switzerland Ltd