HP 5500 Ei 5500 Si Switch Series Configuration Guide

 149 
Obtaining the configuration file 
Figure 55 Obtaining the configuration file 
 
 
A device obtains its configuration file by using the following workflow: 
•  If the DHCP response contains the configuration file name, the device requests the specified 
configuration file from the TFTP server. 
•   If not, the device tries to get its host name from the host name file obtained from the TFTP server. If 
it fails, the device resolves its IP address to the  host name through DNS server. Once the device...

 150 
•  If the IP address and the domain name of the TFTP  server are not contained in the DHCP response 
or they are illegitimate, the device broadcasts a TFTP request. 
After broadcasting a TFTP request, the device selects  the TFTP server that responds first to obtain the 
configuration file. If the requested configuration file does not exist on the TFTP server, the request 
operation fails, and the device removes the temporary configuration and starts up with the factory 
defaults. 
If the device...

 151 
Index 
A B C D E F H I L M N O P R S T U V  
A 
Accessing the CLI online help,4 
B 
Bac

king up the next-startup configuration file to a TFTP 
server, 96 
C 
C

hanging the brand name, 13 4 
C

hanging the system time, 13 0 
C

learing unused 16-bit interface indexes, 14 2 
CLI v

iews, 2 
C

ommand conventions, 1 
C

onfiguring banners, 13 5 
C

onfiguring configuration rollback, 93 
C

onfiguring HTTP login, 54 
C

onfiguring HTTPS login,55  
Co

nfiguring SNMP login, 61 
C

onfiguring source...

 152 
Rebooting the device,13 7 
R
estoring the next-startup configuration file from a TFTP 
server, 97 
S 
S

aving the running configuration, 91 
S

aving the running configuration, 19 
Sc

heduling jobs, 13 9 
Set

ting the file system operation mode, 88 
S

oftware upgrade examples, 10 8 
S

oftware upgrade methods, 99 
S

pecifying a configuration file for the next startup, 96 
T 
T

FTP client configuration example, 82 
T

ypical application scenario, 14 5  U 
U

nderstanding command-line error...

i 
Contents 
IRF overview ··················\
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Hardware compatibility ··················\
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IRF benefits ··················\
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Configuring MAD ··················\
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Configuring LACP MAD ··················\
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Configuring BFD MAD ··················\
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1 
IRF overview 
The HP Intelligent Resilient Framework (IRF) technology creates a large IRF fabric from multiple switches 
to provide data center class availability and scalability. IRF virtualization technology offers processing 
power, interaction, unified management, and uninterrupted maintenance of multiple switches.  
This book describes IRF concepts and guides you through the IRF setup procedure.  
Hardware compatibility 
5500 switches in an IRF fabric must be the same sub-series. For example, a...

2 
Figure 1 IRF application scenario 
 
 
Basic concepts 
This section describes the basic concepts that you might encounter when working with IRF.  
IRF member roles 
IRF uses two member roles: master and slave (called subordinate throughout the documentation).  
When switches form an IRF fabric, they elect a mast er to manage the IRF fabric, and all other switches 
back up the master. When the master switch fails,  the other switches automatically elect a new master 
from among them to take over. For...

3 
Physical IRF port 
Physical IRF ports connect IRF member devices and must be bound to an IRF port. They forward IRF 
protocol packets between IRF member devices and data packets that must travel across IRF member 
devices. 
For more information about physical ports that can be used for IRF links, see  General restrictions and 
c

onfiguration guidelines . 
IRF domain ID 
One IRF fabric forms one IRF domain. IRF uses IRF doma in IDs to uniquely identify IRF fabrics and prevent 
IRF fabrics from...

4 
Figure 3 IRF split 
 
 
IRF merge 
IRF merge occurs when two split IRF fabrics re-unite or when you configure and connect two independent 
IRF fabrics to be one IRF fabric, as shown in Figure 4. 
Figure 4  IRF merge 
 
 
Member priority 
Member priority determines the possibility of a member device to be elected the master. A member with 
higher priority is more like ly to be elected the master. 
The default member priority is 1. You can change the member priority of a member device to affect the...