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CHAPTER
3-1
Cisco SFS InfiniBand Host Drivers User Guide for Linux
OL-12309-01
3
IP over IB Protocol
This chapter describes IP over IB protocol and includes the following sections:
• Introduction, page 3-1
• Manually Configuring IPoIB for Default IB Partition, page 3-2
• Subinterfaces, page 3-2
• Verifying IPoIB Functionality, page 3-5
• IPoIB Performance, page 3-6
• Sample Startup Configuration File, page 3-8
• IPoIB High Availability, page 3-8
Note See the “Root and Non-root Conventions in Examples” section on page ix for details about the
significance of prompts used in the examples in this chapter.
Introduction
Configuring IPoIB requires that you follow similar steps to the steps used for configuring IP on an
Ethernet network. When you configure IPoIB, you assign an IP address and a subnet mask to each HCA
port. The first HCA port on the first HCA in the host is the ib0 interface, the second port is ib1, and so on.
Note To enable these IPoIB settings across reboots, you must explicitly add these settings to the networking
interface startup configuration file. For a sample configuration file, see the “Sample Startup
Configuration File” section on page 3-8.
See your Linux distribution documentation for additional information about configuring IP addresses.