def _init_dfs(self, namespace, source, dest):
"""Initialize the dataframes used in this path hunt"""
self._if_df = interfaces.IfObj(context=self.ctxt) \
.get(namespace=namespace)
if self._if_df.empty:
raise EmptyDataframeError(f"No interface found for {namespace}")
self._lldp_df = lldp.LldpObj(context=self.ctxt).get(
namespace=namespace, columns=self.columns)
if self._lldp_df.empty:
raise NoLLdpError(f"No LLDP information found for {namespace}")
self._rdf = routes.RoutesObj(context=self.ctxt) \
.lpm(namespace=namespace, address=dest)
if self._rdf.empty:
raise EmptyDataframeError("No Routes information found for {}".
format(dest))
# We ignore the lack of ARPND for now
self._arpnd_df = arpnd.ArpndObj(
context=self.ctxt).get(namespace=namespace)
self._macsobj = macs.MacsObj(context=self.ctxt, namespace=namespace)
if ':' in source:
self._src_df = self._if_df[self._if_df.ip6AddressList.astype(str)
.str.contains(source + "/")]
else:
self._src_df = self._if_df[self._if_df.ipAddressList.astype(str)
.str.contains(source + "/")]
if self._src_df.empty:
raise AttributeError(f"Invalid src {source}")
if ':' in dest:
self._dest_df = self._if_df[self._if_df.ip6AddressList.astype(str)
.str.contains(dest + "/")]
else:
self._dest_df = self._if_df[self._if_df.ipAddressList.astype(str)
.str.contains(dest + "/")]
if self._dest_df.empty:
raise AttributeError(f"Invalid dest {dest}")
self.dest_device = self._dest_df["hostname"].unique()[0]
self.src_device = self._src_df["hostname"].unique()[0]
# Start with the source host and find its route to the destination
if self._rdf[self._rdf["hostname"] == self.src_device].empty:
raise EmptyDataframeError(f"No routes found for {self.src_device}")
def _augment_arpnd_show(self, df):
if not df.empty:
# weed out entries that are not reachable
df = df.query('state != "failed"').reset_index(drop=True)
# Get the VRF
df = df.merge(
self._if_df[['namespace', 'hostname', 'ifname', 'master']],
left_on=['namespace', 'hostname', 'oif'],
right_on=['namespace', 'hostname', 'ifname'],
suffixes=['', '_y'], how='outer') \
.rename(columns={'master': 'vrf'}) \
.dropna(subset=['ipAddress'])
df['vrf'] = np.where(df['vrf'] == '', 'default', df['vrf'])
df = df.drop(columns=[
'vlan', 'oif', 'mackey', 'remoteVtepIp', 'timestamp_y'
],
errors='ignore')
# address are where I find the neighbor, these own the mac
addr = self.address_df[['namespace', 'hostname', 'macaddr']] \
.drop_duplicates() \
.rename(columns={'hostname': 'peerHostname'})
df = df.merge(addr, on=['namespace', 'macaddr'], how='left') \
.dropna(how='any') \
.rename(columns={'oif': 'ifname'}) \
.drop_duplicates()
# Use MAC table entries to find the local port for a MAC on an SVI
mac_df = macs.MacsObj(context=self.ctxt) \
.get(namespace=self._namespaces, localOnly=True,
columns=['namespace', 'hostname', 'vlan',
'macaddr', 'oif'])
df = df.merge(mac_df,
on=['namespace', 'hostname', 'macaddr'],
how='outer') \
.dropna(subset=['ipAddress'])
df['ifname'] = np.where(df['oif'].isnull(), df['ifname'],
df['oif'])
df['arpndBidir'] = df.apply(lambda x, y: True if not y.query(
f'namespace=="{x.namespace}" and '
f'hostname=="{x.peerHostname}" and '
f'peerHostname=="{x.hostname}"').empty else False,
args=(df, ),
axis=1)
self._arpnd_df = df
return self._arpnd_df
def _augment_arpnd_show(self, df):
if not df.empty:
# address are where I find the neighbor, these own the mac
addr = self.address_df[['namespace', 'hostname', 'macaddr']] \
.drop_duplicates() \
.rename(columns={'hostname': 'peerHostname'})
df = df.merge(addr, on=['namespace', 'macaddr'], how='left').dropna(how='any') \
.rename(columns={'oif': 'ifname'}) \
.drop_duplicates()
# these are the macs we that are learned via EVPN so we don't want
evpn_macs = macs.MacsObj(context=self.ctxt).get(namespace=self._namespaces) \
.query('remoteVtepIp != ""')[['namespace', 'hostname', 'macaddr']]
df = df.merge(evpn_macs, on=['namespace', 'hostname', 'macaddr'], how='outer', indicator=True) \
.query('_merge=="left_only"') \
.drop(columns=['_merge'])
self._arpnd_df = df
return self._arpnd_df
def _init_dfs(self, namespace, source, dest):
"""Initialize the dataframes used in this path hunt"""
self.source = source
self.dest = dest
self._underlay_dfs = {} # lpm entries for each vtep IP
try:
self._if_df = interfaces.IfObj(context=self.ctxt) \
.get(namespace=namespace, state='up',
addnl_fields=['macaddr']) \
.explode('ipAddressList') \
.fillna({'ipAddressList': ''}) \
.explode('ip6AddressList') \
.fillna({'ip6AddressList': ''}) \
.reset_index(drop=True)
if self._if_df.empty:
raise EmptyDataframeError
except (EmptyDataframeError, KeyError):
raise EmptyDataframeError(
f"No interface information found for {namespace}")
# Need this in determining L2 peer
mlag_df = mlag.MlagObj(context=self.ctxt).get(namespace=namespace)
mlag_peers = defaultdict(str)
mlag_peerlink = defaultdict(str)
if not mlag_df.empty:
peerlist = [x.tolist()
for x in mlag_df.groupby(by=['systemId'])['hostname']
.unique().tolist()]
for peers in peerlist:
mlag_peers[peers[0]] = peers[1]
mlag_peers[peers[1]] = peers[0]
for row in mlag_df.itertuples():
mlag_peerlink[row.hostname] = expand_nxos_ifname(row.peerLink)
self._mlag_peers = mlag_peers
self._mlag_peerlink = mlag_peerlink
try:
# access-internal is an internal Junos route we want to
# ignore
self._rdf = routes.RoutesObj(context=self.ctxt) \
.lpm(namespace=namespace, address=dest) \
.query('protocol != "access-internal"') \
.reset_index(drop=True)
if self._rdf.empty:
raise EmptyDataframeError
except (KeyError, EmptyDataframeError):
raise EmptyDataframeError("No Routes information found for {}".
format(dest))
try:
self._rpf_df = routes.RoutesObj(context=self.ctxt) \
.lpm(namespace=namespace, address=source) \
.query('protocol != "access-internal"') \
.reset_index(drop=True)
if self._rpf_df.empty:
raise EmptyDataframeError
except (KeyError, EmptyDataframeError):
raise EmptyDataframeError("No Routes information found for {}".
format(source))
# We ignore the lack of ARPND for now
self._arpnd_df = arpnd.ArpndObj(
context=self.ctxt).get(namespace=namespace)
if self._arpnd_df.empty:
raise EmptyDataframeError(
f"No ARPND information found for {dest}")
# Enhance the ARPND table with the VRF field
self._arpnd_df = self._arpnd_df.merge(
self._if_df[['namespace', 'hostname', 'ifname', 'master']],
left_on=['namespace', 'hostname', 'oif'],
right_on=['namespace', 'hostname', 'ifname'], how='left') \
.drop(columns=['ifname']) \
.rename(columns={'master': 'vrf'}) \
.replace({'vrf': {'': 'default'}}) \
.query('state != "failed"') \
.reset_index(drop=True)
self._macsobj = macs.MacsObj(context=self.ctxt, namespace=namespace)
if ':' in source:
self._src_df = self._if_df[self._if_df.ip6AddressList.astype(str)
.str.contains(source + "/")]
else:
self._src_df = self._if_df[self._if_df.ipAddressList.astype(str)
.str.contains(source + "/")]
if self._src_df.empty:
# TODO: No host with this src addr. Is addr a local ARP entry?
self._src_df = self._find_fhr_df(None, source)
if self._src_df.empty:
raise AttributeError(f"Invalid src {source}")
if self._src_df.hostname.nunique() == 1 and len(self._src_df) > 1:
# Multiple interfaces with the same IP address. Possible case
# of Unnumbered interfaces. See if there's a loopback in there
if 'loopback' in self._src_df.type.unique().tolist():
self._src_df = self._src_df.query('type == "loopback"')
if ':' in dest:
self._dest_df = self._if_df[self._if_df.ip6AddressList.astype(str)
.str.contains(dest + "/")]
else:
self._dest_df = self._if_df[self._if_df.ipAddressList.astype(str)
.str.contains(dest + "/")]
srcnet = self._src_df.ipAddressList.tolist()[0]
if ip_address(dest) in ip_network(srcnet, strict=False):
self.is_l2 = True
else:
self.is_l2 = False
if self._dest_df.empty:
# TODO: No host with this dest addr. Is addr a local ARP entry?
self._dest_df = self._find_fhr_df(None, dest)
if self._dest_df.empty:
raise AttributeError(f"Invalid dest {dest}")
if self._dest_df.hostname.nunique() == 1 and len(self._dest_df) > 1:
# Multiple interfaces with the same IP address. Possible case
# of Unnumbered interfaces. See if there's a loopback in there
if 'loopback' in self._dest_df.type.unique().tolist():
self._dest_df = self._dest_df.query('type == "loopback"')
self.dest_device = self._dest_df["hostname"].unique()
self.src_device = self._src_df["hostname"].unique()
# Start with the source host and find its route to the destination
if self._rdf[self._rdf["hostname"].isin(self.src_device)].empty:
raise EmptyDataframeError(f"No routes found for {self.src_device}")
def _init_dfs(self, namespace, source, dest):
"""Initialize the dataframes used in this path hunt"""
self.source = source
self.dest = dest
self._underlay_dfs = {} # lpm entries for each vtep IP
try:
self._if_df = interfaces.IfObj(context=self.ctxt) \
.get(namespace=namespace,
addnl_fields=['macaddr']) \
.explode('ipAddressList') \
.fillna({'ipAddressList': ''}) \
.explode('ip6AddressList') \
.fillna({'ip6AddressList': ''})
if self._if_df.empty:
raise EmptyDataframeError
except (EmptyDataframeError, KeyError):
raise EmptyDataframeError(
f"No interface information found for {namespace}")
try:
self._rdf = routes.RoutesObj(context=self.ctxt) \
.lpm(namespace=namespace, address=dest)
if self._rdf.empty:
raise EmptyDataframeError
except (KeyError, EmptyDataframeError):
raise EmptyDataframeError(
"No Routes information found for {}".format(dest))
# We ignore the lack of ARPND for now
self._arpnd_df = arpnd.ArpndObj(context=self.ctxt).get(
namespace=namespace)
if self._arpnd_df.empty:
raise EmptyDataframeError(f"No ARPND information found for {dest}")
# Enhance the ARPND table with the VRF field
self._arpnd_df = self._arpnd_df.merge(
self._if_df[['namespace', 'hostname', 'ifname', 'master']],
left_on=['namespace', 'hostname', 'oif'],
right_on=['namespace', 'hostname', 'ifname'], how='left') \
.drop(columns=['ifname']) \
.rename(columns={'master': 'vrf'}) \
.replace({'vrf': {'': 'default'}})
self._macsobj = macs.MacsObj(context=self.ctxt, namespace=namespace)
if ':' in source:
self._src_df = self._if_df[self._if_df.ip6AddressList.astype(
str).str.contains(source + "/")]
else:
self._src_df = self._if_df[self._if_df.ipAddressList.astype(
str).str.contains(source + "/")]
if self._src_df.empty:
# TODO: No host with this src addr. Is addr a local ARP entry?
self._src_df = self._find_fhr_df(source)
if self._src_df.empty:
raise AttributeError(f"Invalid src {source}")
if ':' in dest:
self._dest_df = self._if_df[self._if_df.ip6AddressList.astype(
str).str.contains(dest + "/")]
else:
self._dest_df = self._if_df[self._if_df.ipAddressList.astype(
str).str.contains(dest + "/")]
srcnet = self._src_df.ipAddressList.tolist()[0]
if ip_address(dest) in ip_network(srcnet, strict=False):
self.is_l2 = True
else:
self.is_l2 = False
if self._dest_df.empty:
# TODO: No host with this dest addr. Is addr a local ARP entry?
self._dest_df = self._find_fhr_df(dest)
if self._dest_df.empty:
raise AttributeError(f"Invalid dest {dest}")
self.dest_device = self._dest_df["hostname"].unique()
self.src_device = self._src_df["hostname"].unique()
# Start with the source host and find its route to the destination
if self._rdf[self._rdf["hostname"].isin(self.src_device)].empty:
raise EmptyDataframeError(f"No routes found for {self.src_device}")
