交换机配置双线路端口汇聚+ospf

设备接线：

思科路由器C891----华三两台S5560交换机堆叠----华为S5735交换机

计划是三台设备之间都用双线路做端口汇聚，同时配置ospf，不知道怎么配置命令？

现在仅做了单线路，配置如下：

思科路由器C891

interface Vlan99

 ip address 10.174.254.1 255.255.255.252

 ip ospf network point-to-point

 !

 interface GigabitEthernet7

 switchport access vlan 99

 no ip address

 !

 router ospf 1

 router-id 10.174.254.1

 redistribute eigrp 100 metric 1000 subnets

 network 10.174.254.1 0.0.0.0 area 0

---------------------------------------

华三两台S5560交换机堆叠

interface Vlan-interface99

 description To Cisco_891

 ip address 10.174.254.2 255.255.255.252

 ospf network-type p2p

 packet-filter name WannaCry inbound

 #

 interface GigabitEthernet1/0/16

 port link-mode bridge

 description To Cisco_891

 port access vlan 99

 #

 ospf 100 router-id 10.174.254.252

 import-route direct

 area 0.0.0.0

  network 10.174.251.1 0.0.0.0

  network 10.174.254.2 0.0.0.0

  ---------------------------------------

华为S5735交换机

interface Vlanif170

 description HeXin-S5560

 ip address 10.174.251.2 255.255.255.252

 ospf network-type p2p      

#

interface GigabitEthernet0/0/24

 description TO_HeXin-S5560

 port link-type access

 port default vlan 170

#

ospf 1 router-id 10.174.251.2

 import-route direct

 area 0.0.0.0

  network 10.174.251.2 0.0.0.0