def demonstrate(device_name):
"""
Apply function 'static_route_create' to the specified device.
Choose a destination that does not already exist.
Choose a next-hop on the same sub-network as an existing interface.
If the next-hop is unknown then use any valid ip-address.
"""
print('Select a destination network for which a static route does not exist.')
destination_network_iterator = destination_network_generator()
while True:
destination_network = next(destination_network_iterator)
print('static_route_exists(%s, %s)' % (device_name, destination_network))
exists = static_route_exists(device_name, destination_network)
print(exists)
print()
if not exists:
break
print('Determine which interface is on the management plane (to avoid it).')
print('device_control(%s)' % device_name)
device_mgmt = device_control(device_name)
print_table(device_mgmt)
print()
print('Determine ip-address and network-mask of every interface.')
print('interface_configuration_tuple(%s)' % device_name)
interface_config_list = interface_configuration_tuple(device_name)
print_table(interface_config_list)
print()
for interface_config in interface_config_list:
if interface_config.address is None:
# Skip network interface with unassigned IP address.
continue
if interface_config.address == device_mgmt.address:
# Do not configure static routes on the 'management plane'.
continue
if 'Loopback' in interface_config.name:
# Do not configure static routes on the 'control plane'.
continue
print('Determine next-hop for a network interface.')
interface_network = interface_config.ip_network
next_hop_address = match(device_name, interface_network)
if next_hop_address is None:
print('Next-hop for %s/%s %s/%s is outside the known topology.' % (device_name, interface_config.name, interface_config.address, interface_config.netmask))
next_hop_address = interface_network.network_address
if next_hop_address == interface_config.ip_interface:
next_hop_address += 1
print('Assume that next-hop for %s/%s %s/%s is %s.' % (device_name, interface_config.name, interface_config.address, interface_config.netmask, next_hop_address))
else:
print('Next-hop for %s/%s %s/%s is %s.' % (device_name, interface_config.name, interface_config.address, interface_config.netmask, next_hop_address))
print()
print('static_route_create(%s, %s, %s)' % (device_name, destination_network, next_hop_address))
static_route_create(device_name, destination_network, next_hop_address)
return True
return False
def demonstrate(device_name):
"""
Apply function 'static_route_create' to the specified device.
Choose a destination that does not already exist.
Choose a next-hop on the same sub-network as an existing interface.
If the next-hop is unknown then use any valid ip-address.
"""
print('Select a destination network for which a static route does not exist.')
destination_network_iterator = destination_network_generator()
while True:
destination_network = next(destination_network_iterator)
print('static_route_exists(%s, %s)' % (device_name, destination_network))
exists = static_route_exists(device_name, destination_network)
print(exists)
print()
if not exists:
break
print('Determine which interface is on the management plane (to avoid it).')
print('device_control(%s)' % device_name)
device_mgmt = device_control(device_name)
print_table(device_mgmt)
print()
print('Determine ip-address and network-mask of every interface.')
print('interface_configuration_tuple(%s)' % device_name)
interface_config_list = interface_configuration_tuple(device_name)
print_table(interface_config_list)
print()
for interface_config in interface_config_list:
if interface_config.address is None:
# Skip network interface with unassigned IP address.
continue
if interface_config.address == device_mgmt.address:
# Do not configure static routes on the 'management plane'.
continue
if 'Loopback' in interface_config.name:
# Do not configure static routes on the 'control plane'.
continue
print('Determine next-hop for a network interface.')
interface_network = interface_config.ip_network
next_hop_address = match(device_name, interface_network)
if next_hop_address is None:
print('Next-hop for %s/%s %s/%s is outside the known topology.' % (device_name, interface_config.name, interface_config.address, interface_config.netmask))
next_hop_address = interface_network.network_address
if next_hop_address == interface_config.ip_interface:
next_hop_address += 1
print('Assume that next-hop for %s/%s %s/%s is %s.' % (device_name, interface_config.name, interface_config.address, interface_config.netmask, next_hop_address))
else:
print('Next-hop for %s/%s %s/%s is %s.' % (device_name, interface_config.name, interface_config.address, interface_config.netmask, next_hop_address))
print()
print('static_route_create(%s, %s, %s)' % (device_name, destination_network, next_hop_address))
static_route_create(device_name, destination_network, next_hop_address)
return True
return False
def add(self):
device_name = self.devicename.get()
destination_network = self.ipset.get()
netmask = self.netmask.get()
dest = to_ip_network(destination_network, netmask)
next_hop_address = self.nexthop.get()
static_route_create(device_name, dest, next_hop_address)
def add_static_route(device_name, destination_network, next_hop_address, print_tag):
#if static route exist, delete it first
if static_route_exists(device_name, destination_network):
static_route_delete(device_name, destination_network)
if print_tag == 1:
print('remove route to %s' % destination_network, 'in %s' % device_name)
#add the static route
static_route_create(device_name, destination_network, next_hop_address)
if print_tag == 1:
print('add route to %s' % destination_network, ' next_hop: %s' % next_hop_address, 'in %s' % device_name)
def add_static_route(device_name, destination_network, next_hop_address,
print_tag):
#if static route exist, delete it first
if static_route_exists(device_name, destination_network):
static_route_delete(device_name, destination_network)
if print_tag == 1:
print('remove route to %s' % destination_network,
'in %s' % device_name)
#add the static route
static_route_create(device_name, destination_network, next_hop_address)
if print_tag == 1:
print('add route to %s' % destination_network,
' next_hop: %s' % next_hop_address, 'in %s' % device_name)
def demonstrate(device_name):
''' Apply function 'static_route_create' to the specified device for a new destination.'''
mgmt_name = management_interface(device_name)
interface_list = interface_names(device_name)
for interface_name in interface_list:
if interface_name == mgmt_name:
# Do not configure static routes on the control plane.
continue
config = interface_configuration_tuple(device_name, interface_name)
if config.address is None:
# Skip network interface with unassigned IP address.
continue
print()
interface_network = to_ip_network(config.address, config.netmask)
next_hop_address = match(device_name, interface_network)
if next_hop_address is None:
print('No end-point for %s/%s/%s/%s' % (device_name, interface_name, config.address, config.netmask))
continue
destination_network = static_route_fixture.new_destination(device_name, interface_network)
print('static_route_create(%s, %s, %s)' % (device_name, destination_network, next_hop_address))
static_route_create(device_name, destination_network, next_hop_address)
return True
return False
def static_route_send_sub(edge,ip):
'''
Descripthon :
This is the subroutine of the static_route_send function
'''
remote_ip = edge['remoteaddr']
nodesrc = edge['localnode']
destination_network=to_ip_network(ip,'255.255.255.255')
#detination_network should be destination node's network
rs = static_route_create(devid2devname(nodesrc), destination_network, remote_ip)
if rs.status_code == 204 or rs.status_code == 409 :
return rs
else:
print(_BUG_CHECK %'push static route is failed!')
return None
def static_route_send_sub(edge, ip):
'''
Descripthon :
This is the subroutine of the static_route_send function
'''
remote_ip = edge['remoteaddr']
nodesrc = edge['localnode']
destination_network = to_ip_network(ip, '255.255.255.255')
#detination_network should be destination node's network
rs = static_route_create(devid2devname(nodesrc), destination_network,
remote_ip)
if rs.status_code == 204 or rs.status_code == 409:
return rs
else:
print(_BUG_CHECK % 'push static route is failed!')
return None
