Xpress Upgrade Option - Zhone IMACS 8000 User Manual

Running Head
IPR*4 Card Download
Should the card now have new functionality (one of the first two load digits has changed), then
the card will be placed into the rejected (REJ) state as illustrated in Figure 21-3 on page 21-5.
Once the card is in this state, then select 't' to accept the new card and provision the new
capability as described earlier in this section.
If the customer has stayed within the same software base (the first two load digits have
remained the same), then the card is now operational and running the new software release.

21.5.2 xpress upgrade option

New in the 6.1.4 software release is the xpress option. This option allows for downloading
through the faceplate of the IPR*4 card using one of the four ethernet ports. This option
provides a stream-lined method to upgrade. Using the existing tftp and xmodem options have
their disadvantages. The xmodem option is very slow. The tftp option, though quick, must
communicate to the CPU card installed and has limitations when activity is going on to the
host CPU (such as telnet, pings, and other ethernet activity destined for the host CPU). Should
a collision occur during the download, a 'dpram timeout' occurs, and depending on activity
could prove insurmountable to the completion of the upgrade process. This express option
allows for loading through the front of the IPR*4 card, but bypasses many of the statistics and
updates that occur to and through the CPU. This option can only be used when the tftp server
is connected to the IPR*4 card through the front of the IPR*4 card.
Once the download command has been chosen, select the xpress option, as seen in Figure
21-10. If the user decides to load a software image that the first two digits of the load do not
match the currently running load (for example: x.y.zz - any load where 'x' and 'y' are not
equal to the currently running load) then the card will change functionality and a reprovision
of the card will be necessary.
21-14
Model No.
IPR*4 Router Card
Server Cards