#create network hosts
host_1 = Host('H1')
object_L.append(host_1)
host_2 = Host('H2')
object_L.append(host_2)
host_3 = Host('H3')
object_L.append(host_3)
# tables for router a
encap_tbl_D = {0: ('11', 3), 1: ('12', 2)} # table used to encapsulate network packets into MPLS frames {(in interface: (out label, out interface)}
frwd_tbl_D = {} # table used to forward MPLS frames {(in label, in interface): (out label, out interface)}
decap_tbl_D = {('21', 3): 1} # table used to decapsulate network packets from MPLS frames {(in label, in interface): out interface}
router_a = Router(name='RA',
intf_capacity_L=[500,500,500,500],
encap_tbl_D = encap_tbl_D,
frwd_tbl_D = frwd_tbl_D,
decap_tbl_D = decap_tbl_D,
max_queue_size=router_queue_size)
object_L.append(router_a)
# tables for router b
encap_tbl_D = {} # table used to encapsulate network packets into MPLS frames {in interface: (out label, out interface)}
frwd_tbl_D = {('12', 0): ('15', 1)} # table used to forward MPLS frames {(in label, in interface): (out label, out interface)}
decap_tbl_D = {} # table used to decapsulate network packets from MPLS frames {(in label, in interface): out interface}
router_b = Router(name='RB',
intf_capacity_L=[500,100],
encap_tbl_D = encap_tbl_D,
frwd_tbl_D = frwd_tbl_D,
decap_tbl_D = decap_tbl_D,
max_queue_size=router_queue_size)
"outLabel": "1"
},
"H2": {
"dest": "H3",
"outLabel": "2",
"interface": 3
}
} # table used to forward MPLS frames
decap_tbl_D = {
"RA": {"H1", "H2"},
"RD": {"H3"}
} # table used to decapsulate network packets from MPLS frames
router_a = Router(name='RA',
intf_capacity_L=[("H1", 500), ("H2", 500), ("RB", 500),
("RC", 500)],
encap_tbl_D=encap_tbl_D,
frwd_tbl_D=frwd_tbl_D,
decap_tbl_D=decap_tbl_D,
max_queue_size=router_queue_size)
object_L.append(router_a)
encap_tbl_D = {"H1": {"RA"}, "H2": {"RB"}}
frwd_tbl_D = {"1": {"interface": 1, "dest": "H3", "outLabel": "1"}}
decap_tbl_D = {"RA": {"H1", "H2"}, "RD": {"H3"}}
router_b = Router(name='RB',
intf_capacity_L=[("RA", 500), ("RD", 100)],
encap_tbl_D=encap_tbl_D,
frwd_tbl_D=frwd_tbl_D,
decap_tbl_D=decap_tbl_D,
max_queue_size=router_queue_size)
object_L.append(router_b)