1. ProSafe Layer 3 Switching
NETGEAR
April 24, 2017
ProSafe Layer 3 Switching
Demetrios Coulis
Product Line Manager
NETGEAR
NETGEAR Confidential

2. Agenda What is Layer 2 switching? What is Layer 3 switching?
NETGEAR
April 24, 2017
Agenda
What is Layer 2 switching?
What is Layer 3 switching?
Difference between Layer 2, Smart and Layer 3 management
Why do I need Layer 3?
When/how to up sell the customer
NETGEAR Confidential

3. OSI Networking Model (Ethernet)
Physical data encoding (“What’s on the wire?”)
Data Link layer (MAC addresses)
Network layer (IP addresses)
Transport layer (TCP port numbers or “applications”)
Session
Presentation
Application (API)

4. Layer 2 Switching Switches act like a traffic cop
Transmits data between devices within the same “VLAN”
A VLAN or “Virtual Local Area Network” is simply a grouping of ports
Broadcasts contained within a VLAN
Decision for next hop is based on the MAC address
MAC addressing is Layer 2 information
Dedicated bandwidth per port
Non-blocking architecture ensures total bandwidth and prevents dropped packets
Full-Duplex
Collisions eliminated from the days of shared access hubs
10M, 10/100M, 10/100/1000M and now 10G speeds

5. Layer 2 Switching FVX538 FSM750S GSM7224 FSM726S GSM7224 NETGEAR
April 24, 2017
Layer 2 Switching
FVX538
FSM750S
GSM7224
FSM726S
GSM7224
NETGEAR Confidential

6. Layer 3 Routing Routers “route” traffic between separate L2 VLANs
VLANs are isolated broadcast domains
If you connect 2 together it becomes one large broadcast domain
VLAN can also be thought of as a “network”
A group of hosts that share the same network prefix ( x)
Decision for next hop is based on the destination IP address
Remember: IP addressing is Layer 3 information
10M, 10/100M and 10/100/1000M speeds
This is the way it used to be done…
….slowly…

7. Layer 3 Routing FVX538 FSM750S FSM726S GSM7224 GSM7224 NETGEAR
April 24, 2017
Layer 3 Routing
FVX538
FSM750S
FSM726S
GSM7224
GSM7224
NETGEAR Confidential

8. Layer 3 Switching
New technology – “Put’s the “Routing” into the switch”
Layer 3 look-ups are pushed into ASICs
ASICs = Application Specific Integrated Circuits
Layer 3 is no longer “slow”
End-users don’t have to pay a penalty for “routing”
The old adage “Switch when you can, Route when you must” no longer applies
Layer 3 switching occurs at “wire-speed”
As fast as the wire can theoretically transmit data
10M, 10/100M, 10/100/1000M and 10G speeds

9. Applications(2) Broadcasts are isolated and L3 switching is efficient
NETGEAR
April 24, 2017
Applications(2)
FVX538
GSM7352S
GSM7328S
GSM7352S
GSM7328S or
XSM7312 (future)
Broadcasts are isolated and L3 switching is efficient
NETGEAR Confidential

10. Unmanaged Switches Use L2 information (MAC addresses)
Invisible to the network
Simple to set up/use
Most affordable
Common for
Smaller networks
Edges of large networks
Small user groups
Conference rooms
Dorm rooms

11. L2 Smart Switches Use L2 information (MAC addresses)
Smart Switch Discovery Tool assigns an IP address
Accessable via WEB Graphical User interface
Give an IT manager access
Observe network
Configure ports
Configure VLAN, trunks, priority, etc.
Easy to use
Can act as unmanaged
Used in networks >50 users

12. L2 Managed Switches
Switch information only at Layer 2 (using MAC addresses)
Configurable via serial console port
Complete configuration, including IP address assignment
IP addressing gives access to Telnet, SSH, SNMP and WEB interfaces
Complete control over Layer 2 parameters
IT manager can
Observe network, including RMON (Remote Monitoring via SNMP)
Enable disable port-level parameters
Complete configuration fo VLANs, trunks, Quality of Service, etc.
Easy to use
Currently only stackable solution
Used in networks >50 users

13. Switch Portfolio Includes Roadmap Products 5 pt 8 pt 12/16 pt 24+ pt
Unmanaged
Smart
Layer 2
Layer 3
10/100
Gigabit
5 pt
FS105
FS605
GS105
GS605
8 pt
FS108
FS608
FS108P
GS108
GS608
GS108T
12/16 pt
FS116
FS116P
JFS516
GS116
GS516T
JGS516
GS716T
GSM7212
GSM7312
24+ pt
FS524
JFS524
JFS524F
GS524T
JGS524
JGS524F
FS726T
FS726TP
FS728TS
GS724T
GS724TS
GS724TPS
FSM726
FSM726S
GSM7224
FSM7328S
FSM7326P
GSM7324
GSM7328S
48+ pt
FS750T2
FS752TPS
GS748T
GS748TS
GS748TPS
FSM750S
GSM7248
FSM7352S
FSM7352PS
GSM7352S
Chassis
GCM9306
GCM9048
GCM9024
GCM9124
Includes Roadmap Products

14. L3 Managed Switches
Same features and functionality as Layer 2 Managed switches
Supports L3 switching between VLANs when needed
Most flexible product to deploy
L3 is there when/if you need it
Interoperates with other routers to share routing information
RIP v1, v2 standards
OSPFv2 standards
Offloads edge router
Segments networks
Latest features (Priority, Security, BW)
More expensive & sophisticated
Used in networks > 100

15. Why / When do you need Layer 3 switching?
When VLANs grow too large
Heavy broadcast loads slow a network down
To separate user groups
Organizational requirements
Finance, Manufacturing, Engineering
Security requirements
Layer 3 Access Control Lists (ACLs) help to prevent access
Uptime requirements
Small user groups are easier to troubleshoot
Decreases downtime

16. Efficient Network Infrastructure
NETGEAR
April 24, 2017
Efficient Network Infrastructure
FVX538
GSM7352S
GSM7328S
GSM7352S
GSM7328S or
XSM7312 (future)
Broadcasts are isolated and L3 switching is efficient
NETGEAR Confidential

17. How do I sell Layer 3 switching?
When large “flat” VLANs grow too large and cause outages
Segmented Networks
Run faster
Less Congested
Down less frequently
To meet IT or organizational requirements
Functional segmentation
Security concerns
Uptime requirements and reliance on the network
Layer 3 switching can be sold into any size network
Generally can start as small as users
Can also integrate and interoperate in large “enterprise” networks already in place
Branch Office, Remote Office requirements