XS3900-48F User’s Guide
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H A P T E R
1
Getting to Know Your Switch
This chapter introduces the main features and applications of the Switch.
1.1 Introduction
This is a high-speed, layer-2, enhanced Ethernet switch with FCoE (Fiber Channel over Ethernet)
and DCB (Data Center Bridging) features.
The Switch comes with:
• Forty-eight 10GbE SFP+ ports and four 40GbE QSFP+ ports at the front
• Two power slots for power modules and two slots for fan modules at the back. The power and fan
modules are hot-swappable and you can choose between front-to-rear and rear-to-front airflow
depending on your installation.
Other key features include SNMP, STP, VLAN, QinQ, Trunk, QoS, and Access Control.
With its built-in web configurator, managing and configuring the Switch is easy. In addition, the
Switch can also be managed via Telnet, any terminal emulator program on the console port, or
third-party SNMP management.
See the datasheet for a full list of software features available on this Switch.
1.2 Data Center Bridging (DCB)
A traditional Ethernet network is best-effort, that is, frames may be dropped due to device queue
overflow or network congestion. FCoE (Fiber Channel over Ethernet) transparently encapsulates
fiber channel traffic into Ethernet, so that you don’t need separate fiber channel and Ethernet
switches.
Data Center Bridging (DCB) enhances Ethernet technology to adapt to the FCoE. It supports
lossless Ethernet traffic (no frames discarded when there is network congestion) and can allocate
bandwidth for different traffic classes, based on IEEE802.1p priority with a guaranteed minimum
bandwidth. LAN traffic (large number of flows and not latency-sensitive), SAN traffic (Storage Area
Network, large packet sizes and requires lossless performance), and IPC traffic (Inter-Process
Communication, latency-sensitive messages) can share the same physical connection while still
having its own priority and guaranteed minimum bandwidth.
The following figure shows an example deployment for the Switch using DCB.
Summary of Contents for XS-3900-48F
Page 15: ...15 PART I User s Guide ...
Page 16: ...16 ...
Page 48: ...Chapter 2 Tutorials XS3900 48F User s Guide 48 ...
Page 62: ...Chapter 4 The Web Configurator XS3900 48F User s Guide 62 ...
Page 63: ...63 PART II Technical Reference ...
Page 64: ...64 ...
Page 227: ...Chapter 26 VLAN Mapping XS3900 48F User s Guide 227 ...
Page 320: ...Appendix A Common Services XS3900 48F User s Guide 320 ...
Page 332: ...Index XS3900 48F User s Guide 332 ...