The document discusses the challenges of current local area networks (LANs) and outlines a vision for next generation LAN infrastructure. It notes shortcomings of Ethernet like lossiness and inefficient topologies. Wireless LANs are crowded and aggregation points create choke points. Key challenges for nextgen LANs are more efficient usage of technologies like TRILL and MPLS in the LAN, improved mobility with 802.11n, higher speeds like 10Gbps Ethernet, and adaptability through standards like DCB. The document provides examples of 10Gbps adoption and advocates for open standards.

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!