1. Introducing BayStack 450 Switches and the Bay Networks Ethernet Switching Solution
Questions or comments:
Dave Crilley, Sr. Marketing Manager, (or)
Glenn Riley, Product Manager,

2. Agenda 10/100 Switching Background BayStack 450 Switch Introduction
BayStack 450/Accelar Integrated Switching Solution
BayStack 450 Switches Applications
Pricing & Availability

3. Customers Tell Us About 10/100 Switching...
10/100 switching is the only smooth migration path
Customers clearly value 10/100 switching for future proofing, ease of administration, investment protection; all at low cost
Desktop switching gathers momentum as prices decrease and density increases
Multimedia, Intranet-enabled apps and faster desktops continue to drive bandwidth demand
10Mbps switching will continue to play in more price-conscious environments
Affordable 10/100 switches with port density, manageability, resiliency and high speed uplinks will be preferred in wiring closets
Customers have told Bay Networks:
- 10/100 autosense switching is clearly the smooth path to Fast Ethernet;
- 10 Mbps switching will still continue to be important, especially in more cost-conscious environments;
- 10/100/1000 switches with high port density, Gigabit Ethernet uplinks and the redundancy features of chassis-based systems will be preferred in larger enterprise network wiring closets.
Bay Networks listens to our customers, and we will continue to address their needs with high-quality, high-performance products at competitive prices.

4. BayStack 350 Series Product Features
New BayStack 350 Series Software
10/100 Autosensing on all ports
1.28 Gbps switching fabric
1.6 Mbps forwarding rate
4 Groups of RMON
Fully Manageable by Optivity and Console/Telnet
Low cost of ownership
V2.0 - March ’98
MultiLink Trunking
Port Mirroring
V3.0 - Q498
BaySecure
Autotopology
It’s important for our customers to understand that the award-winning BayStack 350 Series 10/100 Autosense Switches will continue to be important products in the BayStack family.
BayStack 350 Switches are the affordable, high-performance standalone switching solution in the BayStack family of switches. They are well-suited for 10/100 segment switching in medium-to-large size networks, or as the collapsed backbone of a smaller LAN.
Continuing software development will add new features and capabilities, including BaySecure and Autotopology.

5. Introducing the New BayStack 450 Switches
Fail-Safe Stackability
Advanced Software Features
Flexible Choices in High-Speed Uplinks
Unmatched Price/Performance
BayStack 350 Switches continue to provide affordable, high-performance, standalone switching

6. BayStack Switches Family Positioning
Affordable standalone switching solutions
Economical, high-performance, standalone 10/100 switching solutions
High-performance 10/100/1000 switching solutions with fail-safe stacking and Gigabit Ethernet, ATM, UTP and Fiber uplink options
BayStack
450-24T
BayStack
350F- HD
BayStack
450-12T
New!
BayStack
350T-HD
Price
BayStack
350F
New!
BayStack
350T
BayStack
303
BayStack
304
BayStack 300 Series Switches (BayStack 303 Ethernet Desktop Switch and BayStack 304 Ethernet Segment Switch) define the most affordable portion of the BayStack switch family, Mbps standalone switches.
BayStack 350 Series 10/100 Autosense Switches are the affordable 10/100 standalone switches for flexible segment switching in enterprise networks, and the high-performance backbones of smaller LANs.
New BayStack 450 Switches are designed for larger enterprise networks which require high-density in wiring closets for dedicated bandwidth to desktops. These demanding environments also require fail-safe stackability, resilient redundant connectivity, and advanced software features - not to mention Gigabit Ethernet uplinks.
Functionality 7 18

7. New BayStack 450 Switches
Designed to address enterprise switching needs:
Performance
Scalability & Density
Resiliency
Manageability & Advanced Software Features
Affordability
Customers can future-proof networks
An integrated switching solution with Accelar Routing Switches
New BayStack 450 Switches are designed to meet the demanding requirements for enterprise networks, with built-in advanced software features for future-proofing LANs.
BayStack 450 Switches share key attributes with the Bay Networks Accelar Routing Switch family for an integrated switching solution. These include MultiLink Trunking, redundant uplinks, Priority Queuing and VLAN Trunking. More details follow, later in the presentation.

8. New BayStack 450 Switches: Performance
3 Million packets per second frame forwarding rate
2.5 Gbps switching fabric bandwidth
2.5 Gbps cascade bandwidth
Designed for wire speed performance with no packet loss
10/100 ports in the wiring closet with Gigabit Ethernet uplink

9. BayStack 450 Switches: Scalability
Start small and add 24 or 12 port switches and MDAs as needed
2.5 Gigabit bandwidth cascading bandwidth
Stack is managed as a single entity, with a single MAC address and a single IP address
Up to 8 switches per stack
Start as small as one 12 port switch, scale up to an eight switch stack - for easy to manage network growth!

10. BayStack 450 Switches: Density
Scales up to 224 ports in a stack (using 4-port 10BASE-T/100BASE-TX MDAs)
Provides the wiring closet port density to enable desktop switching
Stack up to 8 units, for up to 224 ports!

11. BayStack 450 Switches: Resiliency
Fail-Safe Stackability
Redundant, self-healing cascade stacking design
Unlike 3Com & Intel stackable switches, BayStack 450 Switches have no single point of failure stack (non-matrix)
Hot Swappable Switches
Connector for Bay Networks Redundant Power Supply Unit (RPSU)
A key differentiator for the BayStack 450 Switches is their fail-safe stacking feature. As illustrated here and on the following slide, BayStack 450 Switches can stack up to 8 units with a cascade stacking design, guaranteeing uptime even if any switch in the stack should fail.
This is an important customer advantage versus matrix-design stacking switches such as the 3Com SuperStack II Switch 3300 or Intel 510T switch. All units in these stack architectures connect to the base unit of the stack. If the base unit fails, all ports are lost to the LAN. This is a “single point of failure” design flaw which disqualifies the3Com and Intel switches from mission-critical applications.
RPSU connector
Rear view, showing fault-tolerant stack design

12. BayStack 450 Switches: Resiliency
Cascade cables loop stacking signals back at point of failure
Integrity of the stack is maintained, even in the unlikely event of a switch unit failure
Rear view, showing fault-tolerant stack design

13. BayStack 450 Switches: Resiliency
MultiLink Trunking Provides High Bandwidth and Fault Tolerance
Failover protection for uplink MDAs with dual-PHY connections
Load-balancing, fault-tolerant server homing for uninterrupted access to servers
Load-balancing, failover protection for uninterrupted access to the network center
Dual homing to
local servers and
mission-critical
PCs with
multiple-port NICs
MultiLink Trunking across different switches in a stack is another key differentiator for the BayStack 450 Switches.
Aggregating ports from more than one switch with MultiLink Trunking can provide fail-over protection to important network devices.
LinkSafe redundant PHYs (physical connectors) offer another way to stay connected to the network center, even if a cable or connector should fail.
Note how these features are paralleled with Accelar Routing Switches features, making for a integrated switching solution.
MultiLink Trunking to
Accelar 1200 at the
network center

14. BayStack 450 Switches: Resiliency
MultiLink Trunking Provides High Bandwidth and Fault Tolerance
Stack connections to servers and the network center is protected, even if a unit should fail
Dual homing to
local servers and
mission-critical
PCs with
multiple-port NICs
MultiLink Trunking to
Accelar 1200 at the
network center

15. BayStack 450 Switches: Advanced Software Features
Full support of 802.1, including 802.1Q VLAN trunking and 802.1p application prioritization
Line-rate IP Multicast Pruning (IGMP Snooping)
MultiLink Trunking across the stack
Broadcast/Multicast Rate Limiting
12,000 MAC addresses
64 port-based VLANs
Protocol-based VLANs*
Port Mirroring
4 RMON groups per port
Supports 802.3x flow control on Gigabit ports
Web-based management and security features*
Full integration into Optivity*
Refer to BayStack 450 Switches and Accelar Routing Switches datasheets and whitepaper for more details on advanced software features.
*future software release

16. BayStack 450 Switch Configurations
front view, BayStack T
rear view (both units)
BayStack 10/100/1000 switch available in 12 and 24 port configurations, with:
- one MDA slot (front)
- one cascade module slot (rear)
front view, BayStack T
2-port 100BASE-FX MDA
4-port 10BASE-T/
100BASE-TX MDA
1-port 1000BASE-SX MDA
(1-port 1000BASE-LX and redundant PHY MDAs also available)
Cascade Stacking Module

17. 10/100/1000 Switches Comparison
SuperStack II
Cisco
Catalyst 2916M XL
Cisco
Catalyst 2924C XL
BayStack
450-24T
Intel
510T
Price/price per port1
$3,595/$149
$3,595/$149
$3,695/$154
$2,995/$188
$3,995/$166
10/100 ports per unit 24 24 24 16 22
Stackability
Yes
Yes2
Yes2 No No
Fail-Safe stack design
Yes No No
N/A
N/A
Max. ports per stack
224
102
196
N/A
N/A
Switch backplane
2.5 Gbps
2.1 Gbps
2.1 Gbps
3.2 Gbps shared
3.2 Gbps shared
2.5 Gbps cascade
1 Gbps
matrix
400 Mbps
matrix
Stacking bandwidth
Non-stackable
Non-stackable
802.1p Priority queuing
Yes
Yes No No No
802.1Q VLAN trunking
Yes
“Future” No No No
1 - 7/98 U.S. list prices
2 - single point of failure design
3 - forthcoming OC-3 & OC-12 MDAs
4 - only 1 VLAN additional support “in future”
MAC Addresses
12,000
12,000
8,164
2,048
2,048
Yes
(one VLAN)4
VLAN support
Yes
Yes
Yes No
IGMP Snooping
BayStack 450 Switches offer much faster performance and fail-safe stackability over the 3Com and Intel stackable switches.
BayStack 450 Switches offer much greater scalability and advanced features over Cisco Catalyst workgroup switches, which are non-stackable.
Yes
Yes No
Proprietary
Proprietary
Gigabit Ethernet
Yes
Yes
Yes
“Future” No
ATM OC-3 and OC-12
Yes3
“Future” No
“Future” No
100BASE-FX
Yes
Yes
Yes
Yes
2 pre-configured
Forwarding performance
3 million pps
1.3 million pps
571k pps
3 million pps
3 million pps 4 6 4

18. Building the Bay Networks Ethernet Switching Solution
Performance
Scalability
Resilience
Enterprise Network Management
Advanced Software Features
Security
BayStack
450
Switches
Accelar
Routing
Switches
Common features make BayStack 450 Switches and Accelar Routing Switches perfect companions in enterprise switched networks.

19. Performance Best in Class Throughput Backplane Speed
BayStack
450
Switches
Best in Class Throughput
Accelar: 7 Mpps, IP/IPX* routing
BayStack 450: 3 Mpps
Backplane Speed
Accelar: 15 Gbps
BayStack 450: 2.5 Gbps
Accelar
Routing
Switches
Both Accelar Routing Switches and BayStack 450 Switches offer unbeatable throughput performance in their relative classes: network core and wiring closet switches.
* Available 12/98

20. Scalability
BayStack
450
Switches
Accelar
Routing
Switches

21. Resilience Switch Resilience Backbone Resilience Riser Resilience
BayStack
450
Switches
Switch Resilience
Accelar 1200: Redundant switch fabric
BayStack 450: Fail-Safe stackability
Backbone Resilience
Gigabit mesh
LinkSafe -- physical resiliency
Gigabit Multi Link Trunking (MLT)
Riser Resilience
FE, GE “Redundant” MLT
Accelar
Routing
Switches
Fail-Safe stackability maintains wiring closet connectivity even if switches in the stack fail, while Accelar’s redundant switch fabric maintains network core uptime.
MultiLink Trunking resilience is illustrated by the multiple connections from different BayStack 450 switches in the wiring closet stack, to different “blades” in the Accelar 1200 Routing Switch in the network center.

22. Resilience Load Balancing Risers
Only available with Accelar Routing Switches
Two active connections
Terminating at different points
No network convergence
Automatic load balancing
BayStack
450
Accelar 2
Active
Risers
One benefit of installing Accelar Routing Switches in the wiring closet: the ability to maintain more than one “live” connection to the network center, for automatic load balancing to maintain optimum performance.

23. Enterprise Network Management
BayStack
450
Switches
Optivity
Device and System Management
Planning and Analysis
Service Level Agreements
Policy Management
Web-based management*
RMON per port
Remote Traffic Monitoring
Including Port Mirroring
Common
Look & Feel
Accelar
Routing
Switches
The easy-to-use Optivity network management software simplifies managing the entire network from one PC, with one integrated interface.
*future BayStack 450 software release
StackProbe

24. Advanced Software Features
Application Prioritization (802.1p)
VLAN trunking (802.1Q)
IP Multicast Support (IGMP snooping)
BaySecure Access Security*
BayStack
450
Switches
Accelar
Routing
Switches
*future BayStack 450 software release

25. *future BayStack 450 software release
Security
BayStack
450
Switches
BaySecure:*
Grant or deny network access by MAC address
Auto MAC address detection
Distributed Access List Security
RADIUS
Accelar
Routing
Switches
*future BayStack 450 software release

26. BayStack 450 Switches: Applications 10/100/1000 Desktop Switching
100 Mbps PCs
10Mbps PCs
Ultimate in desktop connectivity
Fully realizes potential of 10/100 NICs
Scales from 12 to 100’s of desktops
Affordable 10, 10/100 and 100 Mbps switching
BayStack 450 Switches stack
100 Mbps PCs
local 10 Mbps printer
local 100 Mbps server
Gbit/100FX uplinks
BayStack 450 Switches optimize LANs for high-density desktop switching.
100 Mbps servers
Accelar 1200 Routing Switch
100 Mbps router

27. 10/100 Mbps hub & PCs
BayStack 450 Switches: Applications 10/100/1000 Hybrid Wiring Closet Switch
BayStack 350T w/800 Mbps
Multilink Trunk
BayStack 450 Switches
stack
Ultimate in flexibility
Autosense ports for 10 and Mbps devices
Modular uplink options
Segment and desktop switching
Ultimate in scalability
2.5 Gbps backplane per switch and stack
Support for 100’s of desktop ports
Accelar 1200 Routing Switch
local 100 Mbps server
100 Mbps servers
100 Mbps router
100 Mbps PCs
LANs with installed bases of BayStack /100 Autosense Switches and chassis-based hubs and switches like the Bay Networks System 5000 will find the BayStack 450 Switches useful as hybrid segment and desktop switches in the wiring closet.

28. Workgroup 10/100/1000 Evolution: BayStack 350 & BayStack 450 Switches
200 Mbps full-duplex
BayStack 450 Switches stack
200 Mbps full-duplex
BayStack
450-24T
Switch
Multilink Trunking up to 800 Mbps full-duplex
2 Gbps
full-duplex
Multi- Gigabit
MultiLink Trunks
This is a suggested evolution path for LANs currently using BayStack 350 Switches in the wiring closet. MultiLink Trunking is compatible between the BayStack 350 Switches, BayStack 450 Switches, and Accelar Routing Switches, for configuration flexibility.
Accelar 1200
Accelar 1200
Accelar 1200

29. Workgroup 10/100/1000 Evolution: Accelar, BayStack 350 & BayStack 450 Switches
Multilink
Trunk
BayStack 450 Switches stack
BayStack 350 Switches
BayStack 350 Switches
BayStack 350
Switches
200 Mbps full-duplex
Accelar 1050
Accelar 1050
Multilink Trunking up to 800 Mbps full-duplex
2 Gbps
full-duplex
2 Gbps
full-duplex
This is a suggested evolution path for LANs currently using BayStack 350 Switches and Accelar Routing Switches in the wiring closet for Gigabit Ethernet uplinks and advanced Layer 3 capabilities.
Accelar 1200
Accelar 1200
Accelar 1200

30. Pricing & Availability
Description
List Price
Per Port
Order Code
Availability
BayStack T
Switch
US$3,595
US$149
AL2012?14
July ‘98
BayStack T
Switch
US$2,395
US$199
AL2012?15
July ‘98
2-port 100BASE-FX MDA
US$995
N/A AL
July ‘98
4-port 10BASE-T/ 100BASE-TX MDA
US$995
N/A AL
July ‘98 19 15

31. Pricing & Availability
Description (model name)
List Price
Order Code
Availability
1-port 1000BASE-SX Single PHY MDA (BayStack 450-1SX MDA)
US$1,495 AL
July ‘98
1-port 1000BASE-SX Redundant PHY MDA (BayStack 450-1SR MDA)
US$1,995 AL
Aug ‘98
1-port 1000BASE-LX Single PHY MDA (BayStack 450-1LX MDA)
US$1995 AL
Sept ‘98
1-port 1000BASE-LX Redundant PHY MDA (BayStack 450-1LR MDA)
US$2495 AL
Sept ‘98 19 15

32. Pricing & Availability
Description
List Price
Comment
Order Code
Availability
BayStack 400-ST1 Cascade Module (with cascade cable)
US$495
Order one per unit in a stack AL
Nov. ‘98
BayStack 400-SRC Cascade Return Cable
US$195
Order 1 per stack of 3 or more AL
Nov. ‘98
BayStack 400-SSC Spare Cascade Cable
US$95
For spare only AL
Nov. ‘98
It is important to understand and order the correct items for configuring a stack.
Order ONE BayStack 400-STI cascade module for EVERY SWITCH in a stack. (The necessary cascade cable is included.)
Order ONE BayStack 400-SRC cascade return cable for the ENTIRE STACK. (Not needed if stacking only two switches.)
The BayStack 400-SSC is a SPARE cable. Order only if a cascade cable is lost or damaged, or if spare parts are required on site. 15 19