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Configuring the uPIM Mode on J-series Routers

The 6-port, 8-port, and 16-port Gigabit Ethernet uPIMs used on the J-series routers (J2320, J2350, J4350, and J6350) support Layer 2 switching and can forward traffic at both Layer 2 (switching) and Layer 3 (routing). You can configure a uPIM to run in either routing mode (the default) or switching mode.

Routing mode provides the standard routing services. Switching mode allows traffic forwarding at both Layer 2 and Layer 3. At Layer 2, a uPIM can switch intra-LAN traffic from one LAN host to another, such as from one port on a uPIM to another on the same uPIM. At Layer 3, a uPIM can route traffic to WAN interfaces and other PIMs present on the chassis.

To configure the PIM mode, include the following statements at the [edit chassis fpc] hierarchy level:



[edit chassis]
fpc fpc-slot {


pic pim-slot {


ethernet {
pic-mode (switching | routing);
}


}


}

Setting J-Series PIMs Offline

On J-series routers, the system monitors the PIMs and verifies that a newly inserted PIM falls within the power capacity of the chassis. PIMs that fall outside of acceptable power ranges can be taken offline or disabled for power management purposes.

This operation differs from the power-off option used on non-J-series products.

To take a PIM offline, include the offline statement at the [edit chassis fpc slot-number] hierarchy level:



[edit chassis fpc slot-number]
offline;

Disabling Power Management on the J-series Chassis

Instead of setting a PIM offline, the power management feature on a chassis can be disabled. The disable-power-management statement disables power management on the chassis and, when used, causes any PIMs disabled due to exceeding chassis power limits to come online.

It is important to consider power management carefully before enabling disabled PIMs. If the PIMs have been disabled because they exceeded power limits, they should not be enabled.

To disable power on the J-series chassis, include the disable-power-management statement at the [edit chassis] hierarchy level:



[edit chassis]
 disable-power-management;

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