H3C Technologies H3C S12500 Series Switches - Manual (Page 160)

148
Member switch-based ISSU upgrade example (four
members, compatible or partially compatible
version)
Network requirements
As shown in Figure 51 :
• The IRF fabric is made up of four member switches. The master has an MPU in slot 0, and each
subordinate switch has an active MPU in slot 0 and a standby MPU in slot 1.
• The current system software image of the IRF fabric is soft-version1. The latest system software
image soft-version2.bin is saved on the TFTP server. The two versions are compatible. (This
example also applies if the two versions are partially compatible.)
• The IRF fabric and the TFTP server can reach each other.
Use ISSU to upgrade the software version of the IRF fabric to soft-version2.
Figure 51 Network diagram
Upgrade procedure
1. Prepare the TFTP server:
Obtain the right system software image for software version upgrade through legal channels (such
as H3C official websites, agents, or technical staff), and then save the file to the working path on
the TFTP server to make the file accessible to the TFTP client. (Details not shown.)
2. Upgrade the IRF fabric:
# Download system software image soft-version2.bin to the root directory of the storage medium
on all MPUs of the IRF fabric.
tftp 2.2.2.2 get soft-version2.bin
File will be transferred in binary mode
Downloading file from remote TFTP server, please wait……
TFTP: 10058752 bytes received in 141 second(s)