1. NextGen LAN Infrastructure
What does the Next Generation LAN look like?

2. Panelists
• Jeremy Littlejohn
– President, RISC Networks Inc.

3. NextGen LAN Challenges

4. Current LAN Shortcomings
Total Have Avg. Have Avg.
Uplinks Errors Errors Discards Discards
• Ethernet is Lossy 5923 446 2209015 142 89432
– Much worse that Fibre Channel
– Even worse when poorly executed
• Current Topologies are Inefficient
– Spanning Tree is beautiful but dated
• Wireless LAN (802.11 a/b/g)
– Works but is very crowded
• Aggregation points are choke points

5. Does Loss Matter?
Source: NetEx

6. Top NextGen LAN Challenges
• More Efficient
– TRILL / 802.1aq Low
Latency Lossless
– MPLS / VPLS in the LAN
• Mobility Low
Jitter
– 802.11n
• Speed
– 10 Gbps Ethernet Success
• Adaptability
– DCB (Data Center Bridging)

7. 10 GB Ethernet Saturation
• 109
Customers 300000
• 34 Have 250000
250,039
10Gbps
200000
• 2,271
Average
150000 135,870
Nodes
100000
• Only 396
10Gbps
50000
ports in use
871
0
1.0 Gbps 10 Gbps 100 Mbps

8. Some Vendor-ese I heard this week
• Network needs to be Simpler
• Network must become Flat
• Open Standards are the reason that our
product works
• Virtual Machines are flying all over the place

9. What do You Think?
• Thank you for participating!