SmartConnect User’s Guide

Internal Trunks

Internal trunks allow for more granular high-availability options for the links between the serv- ers and switches within a blade server chassis. Internal trunks have the following requirements:

„One or more blade servers in the blade chassis must be installed with multiple NICs and be configured for NIC Teaming. The actual number of supported NICs depends on the specific server and chassis model, and the capabilities of the NIC Teaming software.

„Multiple SmartConnect switches in the same blade chassis as the servers must be linked together as part of a stacked configuration (see “Stacking” on page 43). The number of SmartConnect switches installed in the chassis (and their slot locations) must coincide with the slots targeted by the blade servers’ NICs.

For additional restrictions, see “Trunking Rules” on page 32.

Figure 3-Cshows a high-availability network combining external and internal trunks in a stacked switch configuration.

 

External

Stacked Switches

Internal

 

Servers with

 

Uplink Trunks

& Support Links

Trunks

Teamed NICs

 

 

 

 

 

 

 

 

 

 

 

Master

 

 

 

Server

 

 

 

 

 

 

 

 

 

 

 

Switch

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Server

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Trunk

 

 

 

 

 

Server

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Member

 

 

 

 

 

 

 

 

 

 

 

Server

 

 

 

 

Switch

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Internet

 

 

Blade Server Chassis 1

 

Trunk

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Member

 

 

 

Server

 

 

 

 

 

 

 

 

 

Switch

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Enterprise

 

 

 

 

 

Server

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Routing Switches

 

 

 

 

 

Server

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Member

 

 

 

 

 

 

 

 

 

 

 

Server

 

 

 

 

Switch

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Blade Server Chassis 2

Figure 3-CTrunking Internal Ports

BMD00082, February 2009

Chapter 3: Switch Virtualization „ 35

Page 37
Image 37
IBM Partner Pavilion BMD00082 manual Internal Trunks, CTrunking Internal Ports