Juniper (NASDAQ:JNPR) shares fell 3.6% in after market hours yesterday after it warned it sees Q4 EPS of $0.26 – $0.28 on revenues of $1.1 – $1.2 billion, vs. consensus estimates of $0.34 and $1.19 billion.Juniper attributed the warning to weak service provider demand, specifying the weakness to domestic use.Juniper Networks (NASDAQ:JNPR) has potential upside of 13.4% based on a current price of $21.53 and an average consensus analyst price target of $24.42.