When you try to connect via Port Channeling Catalyst and HPE switches you should choose the same Link Aggregation protocol. HPE speak LACP, Cisco as a native language speaks PAGP but gets along well with LACP.
To activate LACP under Cisco interface you have to use
channel-group [n] mode active command. HPE use instead
link-aggregation mode dynamic under Bridge-Aggregation interface.
# Cisco # PortChannel Conf # interface Port-channel9 description LACP to HPE switchport trunk encapsulation dot1q switchport trunk allowed vlan 10,20,30,40 switchport mode trunk spanning-tree bpdufilter enable # # interfaces Conf # interface GigabitEthernet1/0/9 description LINK Port-channel9 to HPE switchport trunk encapsulation dot1q switchport trunk allowed vlan 10,20,30,40 switchport mode trunk channel-group 9 mode active # # HPE # Bridge-Aggregation Conf # interface Bridge-Aggregation9 description LACP to CISCO port link-type trunk port trunk permit vlan 10,20,30,40 link-aggregation mode dynamic stp edged-port mad enable # # interfaces Conf # interface GigabitEthernet2/0/9 description LINK Bri-Aggr.9 to CISCO port link-type trunk port trunk permit vlan 10,20,30,40 stp edged-port port link-aggregation group 9