Your other option would be to build an l2circuit between the two buildings. We typically do these on the MX but the EX does support the feature too.
https://kb.juniper.net/InfoCenter/index?page=content&id=KB24409
Your other option would be to build an l2circuit between the two buildings. We typically do these on the MX but the EX does support the feature too.
https://kb.juniper.net/InfoCenter/index?page=content&id=KB24409