Figure 30: Example Line-Card Upgrade Group Topology - Juniper JUNOS OS 10.4 - FOR EX REV 1 Manual

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The interfaces on the line card in slot 4 are not part of either LAG.
To minimize the time an upgrade takes and to ensure that the member links of each LAG
are in different upgrade groups, this example configures the following two line-card
upgrade groups:
group1 —Contains the line cards in slots 0, 2, and 4.
—Contains the line cards in slots 1 and 3.
group2
The line card in slot 4 could be put in either group. It could also be left out of an upgrade
group entirely, and it would be upgraded separately after the line cards in the upgrade
groups have been upgraded. However, it is more efficient to include it in an upgrade group.
Figure 30 on page 1187 illustrates the topology.

Figure 30: Example Line-Card Upgrade Group Topology

To create line-card upgrade groups, perform these tasks:
To quickly create the line-card upgrade groups, copy the following commands and paste
them into the switch terminal window:
[edit]
set chassis nssu upgrade-group group1 fpcs [0 2 4]
set chassis nssu upgrade-group group2 fpcs [1 3]
To create the line-card upgrade groups for an NSSU:
Create the first line-card upgrade group:
1.
[edit chassis]
user@switch# set nssu upgrade-group group1 fpcs [0 2 4]
Create the second line-card upgrade group:
2.
[edit chassis]
user@switch# set nssu upgrade-group group2 fpcs [1 3]
Display the results of the configuration:
[edit chassis]
user@switch# show
nssu {
Chapter 51: Examples of High Availability Configuration
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