This article explains the reasons why the Next-Hop for a Static Route appears as 'HOLD' in the Forwarding Table.

When executing the show route forwarding-table command, static routes with the "Hold" next-hop type will be displayed as shown below:

Routing table: default.inet
Internet:
Destination        Type RtRef Next hop           Type Index    NhRef Netif
default            user     1 c:86:10:99:c7:f0   ucst      564     4 reth1.0
default            perm     0                    rjct       36     1
0.0.0.0/32         perm     0                    dscd       34     1
10.219.56.0/24     intf     0                    rslv      534     1 reth1.0
10.219.56.0/32     dest     0 10.219.56.0        hold      532     1 reth1.0

This issue occurs when the next-hop is unreachable. To troubleshoot, first verify whether the ARP for the next-hop is resolved. If the ARP entry for the next-hop is missing, check if the next-hop is available and not down. Additionally, perform a packet capture on the SRX to determine if the SRX is sending ARP requests.