It looks like on asw-esams, cp3036 and cp3037 port descriptions are swapped:
vgutierrez@asw-esams> show interfaces xe-3/0/4 Physical interface: xe-3/0/4, Enabled, Physical link is Up Interface index: 659, SNMP ifIndex: 530 Description: cp3037
and
Ethernet switching table : 34 entries, 34 learned Routing instance : default-switch Vlan MAC MAC Age Logical name address flags interface private1-esams 44:a8:42:09:fb:36 D - xe-3/0/4.0
but from puppet/modules/install_server/files/dhcpd/linux-host-entries.ttyS1-115200:
host cp3036 { hardware ethernet 44:a8:42:09:fb:36; fixed-address cp3036.esams.wmnet;