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Python AutoNetkit.bgp_routers方法代码示例

本文整理汇总了Python中AutoNetkit.bgp_routers方法的典型用法代码示例。如果您正苦于以下问题:Python AutoNetkit.bgp_routers方法的具体用法?Python AutoNetkit.bgp_routers怎么用?Python AutoNetkit.bgp_routers使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在AutoNetkit的用法示例。


在下文中一共展示了AutoNetkit.bgp_routers方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Python代码示例。

示例1: configure

# 需要导入模块: import AutoNetkit [as 别名]
# 或者: from AutoNetkit import bgp_routers [as 别名]
    def configure(self):
        """Configure C-BGP"""
        LOG.info("Configuring C-BGP")
        self.initialise()
        default_weight = 1
        template = lookup.get_template("cbgp/cbgp.mako")
        physical_graph = self.network.graph
        igp_graph = ank.igp_graph(self.network)
        ibgp_graph = ank.get_ibgp_graph(self.network)
        ebgp_graph = ank.get_ebgp_graph(self.network)
        as_graphs = ank.get_as_graphs(self.network)
        ip_as_allocs = ank.get_ip_as_allocs(self.network) # Allocs for ebgp announcements

        physical_topology = defaultdict(dict)
        ibgp_topology = {} 
        igp_topology = {} 
        ebgp_topology = {}
        ebgp_prefixes = {}
        bgp_routers = {}

# Fast lookup of loopbacks - the unique router ID for cBGP
        loopback = dict( (n, self.network.lo_ip(n).ip) for n in physical_graph)

# Physical topology
        for as_graph in as_graphs:
            asn = as_graph.name
            physical_topology[asn]['nodes'] = [loopback[n] for n in as_graph]
            physical_topology[asn]['links'] = [ (loopback[s], loopback[t]) 
                    for (s,t) in unidirectional(as_graph.edges())]

# Interdomain links
        interdomain_links =  [ (loopback[s], loopback[t])
                for (s,t) in unidirectional(ebgp_graph.edges())]

#IGP configuration
        for as_graph in as_graphs:
            asn = as_graph.name
            igp_topology[asn] = {}
# Subgraph of IGP graph for this AS
            as_igp_graph = igp_graph.subgraph(as_graph.nodes())
            igp_topology[asn]['nodes'] = [loopback[n] for n in as_igp_graph]
            igp_topology[asn]['links'] = [ (loopback[s], loopback[t], data.get('weight', default_weight)) 
                    for (s,t,data) in (as_graph.edges(data=True))]

# iBGP configuration
#TODO: if ibgp graph is a clique then use "bgp domain 1 full-mesh" where 1 is asn
# use nx.graph_clique_number(G) and compare to size of G, if same then is a clique
# otherwise create ibgp session by session

#TODO: add support for non full-mesh (need to find documentation on this)
        for as_graph in as_graphs:
            asn = as_graph.name
            for router in as_graph:
                if not router.is_router:
                    continue
                if router not in ibgp_graph:
# likely single node AS
                    continue
                ibgp_topology[router] = []
                for peer in ibgp_graph.neighbors(router):
                    ibgp_topology[router].append(peer)
            bgp_routers[asn] = [n.lo_ip.ip for n in ank.bgp_routers(self.network)
                    if n.asn == asn]

# eBGP configuration
        for node in ebgp_graph.nodes():
            node_id = loopback[node]
            peers = []
            for peer in ebgp_graph.neighbors(node):
                peers.append( (self.network.asn(peer), loopback[peer]))
            ebgp_topology[node_id] = peers
# Prefixes to originate
            adv_subnet = ip_as_allocs[self.network.asn(node)]
            ebgp_prefixes[node_id] = adv_subnet

            #TODO: see if can just do for node in ebgp_graph ie without the .nodes() on end

        # bgp policy
        bgp_policy = {}
        for router in self.network.routers():
            for peer in self.network.g_session.neighbors(router):
                pol_egress = self.network.g_session[router][peer]['egress']
                pol_ingress = self.network.g_session[peer][router]['ingress']
                if len(pol_ingress) or len(pol_egress):
                    try:
                        bgp_policy[router][peer] = {
                                'ingress': pol_ingress,
                                'egress': pol_egress,
                                }
                    except KeyError:
                        bgp_policy[router] = {}
                        bgp_policy[router][peer] = {
                                'ingress': pol_ingress,
                                'egress': pol_egress,
                                }


        # tags dict for mapping from tag to community value, and for prefixes
        tags = self.network.g_session.graph['tags']
        prefixes = self.network.g_session.graph['prefixes']
#.........这里部分代码省略.........
开发者ID:ntwrkguru,项目名称:autonetkit,代码行数:103,代码来源:cbgpcompiler.py


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