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Requirements for Routers with a Backup Router Configuration

If your Routing Engine configuration includes a backup-router statement or an inet6-backup-router statement, you must also use the destination statement to specify a subnet address or multiple subnet addresses for the backup router. Include destination subnets for the backup Routing Engine at the [edit system (backup-router | inet6-backup-router) address] hierarchy level. This requirement also applies to any T640 routing node connected to a TX Matrix platform that includes a backup-router or inet6-backup-router statement.

Note: If you have a configuration in which multiple static routes point to a gateway from fxp0, you must either configure specific prefixes for the static routes or include the retain flag at the [edit routing-options static route] hierarchy level.

For example, if you configure the static route 172.16.0.0/12 from fxp0 for management purposes, you must specify the backup router configuration as follows:



backup-router 172.29.201.62 destination [172.16.0.0/13
172.16.128.0/13]

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