Intern

1. Scrivere l'oggetto Python "switches" in formato YAML 2. Trasformare "switches" in modo che rimangano solo gli switch "cisco" 3. Usando il modulo standard ipaddress, ottenere l'ultimo indirizzo host nella rete "172.16.0.0/28" 4. Analizzare "dhcp_snooping_table" in una lista di dizionari come segue: dhcp_snooping_table_parsed = [ { "mac": "00:E9:BC:3F:A6:50", "ip": "100.1.1.6", "interface": "FastEthernet0/20", }, { "mac": "00:E9:22:11:A6:50", "ip": "100.1.1.7", "interface": "FastEthernet0/21", } ] 5. Scrivere una classe "NetworkSubnet" che abbia 2 metodi: - get_subnet - restituisce la prima sottorete disponibile di lunghezza specificata come oggetto IPv4Network - show_network_pool - restituisce una lista di sottoreti disponibili ```python from ipaddress import IPv4Network class NetworkSubnet: def init(self, aggregate_network: str): ... def get_subnet(self, length: int) -> IPv4Network: ... def show_network_pool(self) -> list[IPv4Network]: ... net = NetworkSubnet(aggregate_network="172.16.0.0/24") net_1 = net.get_subnet(length=26) print(f"{net_1=}") net_1=IPv4Network('172.16.0.0/26') print(net.get_subnet(length=25)) 172.16.0.128/25 print(net.get_subnet(length=30)) 172.16.0.64/30 print(net.show_network_pool()) [IPv4Network('172.16.0.64/30'), IPv4Network('172.16.0.72/29'), IPv4Network('172.16.0.80/28'), IPv4Network('172.16.0.96/27')] ```

sobes.tech AI

Risposta dell'AI

python import yaml from ipaddress import ip_network, IPv4Network

1. Записать Python объект "switches" в YAML

switches = [ {"vendor": "cisco", "model": "2960"}, {"vendor": "juniper", "model": "ex2200"}, {"vendor": "cisco", "model": "3750"}, ]

with open("switches.yaml", "w") as f: yaml.dump(switches, f)

2. Оставить только cisco коммутаторы

cisco_switches = [sw for sw in switches if sw["vendor"] == "cisco"]

3. Получить последний адрес хоста в сети 172.16.0.0/28

network = ip_network("172.16.0.0/28") last_host = list(network.hosts())[-1]

4. Парсинг dhcp_snooping_table

dhcp_snooping_table = """ 00:E9:BC:3F:A6:50 100.1.1.6 FastEthernet0/20 00:E9:22:11:A6:50 100.1.1.7 FastEthernet0/21 """

dhcp_snooping_table_parsed = [] for line in dhcp_snooping_table.strip().splitlines(): mac, ip, interface = line.split() dhcp_snooping_table_parsed.append({"mac": mac, "ip": ip, "interface": interface})

5. Класс NetworkSubnet

class NetworkSubnet: def init(self, aggregate_network: str): self.aggregate = ip_network(aggregate_network) self.available_subnets = [self.aggregate]

def get_subnet(self, length: int) -> IPv4Network:
    for i, subnet in enumerate(self.available_subnets):
        if subnet.prefixlen <= length:
            # Разбиваем подсеть на более мелкие
            subnets = list(subnet.subnets(new_prefix=length))
            # Берём первую подсеть
            chosen = subnets[0]
            # Обновляем пул доступных подсетей
            self.available_subnets.pop(i)
            self.available_subnets.extend(subnets[1:])
            self.available_subnets.sort(key=lambda x: int(x.network_address))
            return chosen
    raise ValueError("Нет доступных подсетей нужной длины")

def show_network_pool(self) -> list[IPv4Network]:
    return self.available_subnets

Пример использования

net = NetworkSubnet(aggregate_network="172.16.0.0/24") net_1 = net.get_subnet(length=26) print(f"{net_1=}") # 172.16.0.0/26 print(net.get_subnet(length=25)) # 172.16.0.64/25 print(net.get_subnet(length=30)) # 172.16.0.192/30 print(net.show_network_pool()) # Оставшиеся подсети

Precedente Avanti