<SYSTEM_TASK:>
Given the following text description, write Python code to implement the functionality described below step by step
<END_TASK>
<USER_TASK:>
Description:
 Routing Protocol Sessions and Policies
This category of questions reveals information regarding which routing
protocol sessions  are compatibly configured and which ones are
established. It also allows to you analyze BGP routing policies.
BGP Session Compatibility
BGP Session Status
BGP Edges
OSPF Session Compatibility
OSPF Edges
Test Route Policies
Search Route Policies
Step1:  BGP Session Compatibility
Returns the compatibility of configured BGP sessions.
Checks the settings of each configured BGP peering and reports any issue with those settings locally or incompatiblity with its remote counterparts. Each row represents one configured BGP peering on a node and contains information about the session it is meant to establish. For dynamic peers, there is one row per compatible remote peer. Statuses that indicate an independently misconfigured peerings include NO_LOCAL_AS, NO_REMOTE_AS, NO_LOCAL_IP (for eBGP single-hop peerings), LOCAL_IP_UNKNOWN_STATICALLY (for iBGP or eBGP multi-hop peerings), NO_REMOTE_IP (for point-to-point peerings), and NO_REMOTE_PREFIX (for dynamic peerings). INVALID_LOCAL_IP indicates that the peering's configured local IP does not belong to any active interface on the node; UNKNOWN_REMOTE indicates that the configured remote IP is not present in the network. A locally valid point-to-point peering is deemed HALF_OPEN if it has no compatible remote peers, UNIQUE_MATCH if it has exactly one compatible remote peer, or MULTIPLE_REMOTES if it has multiple compatible remote peers. A locally valid dynamic peering is deemed NO_MATCH_FOUND if it has no compatible remote peers, or DYNAMIC_MATCH if it has at least one compatible remote peer.
Inputs
Name | Description | Type | Optional | Default Value
--- | --- | --- | --- | --- 
nodes | Include sessions whose first node matches this specifier. | NodeSpec | True | 
remoteNodes | Include sessions whose second node matches this specifier. | NodeSpec | True | 
status | Only include sessions for which compatibility status matches this specifier. | BgpSessionCompatStatusSpec | True | 
type | Only include sessions that match this specifier. | BgpSessionTypeSpec | True | 
Invocation
Step2:  Return Value
Name | Description | Type
--- | --- | ---
Node | The node where this session is configured | str
VRF | The VRF in which this session is configured | str
Local_AS | The local AS of the session | int
Local_Interface | Local interface of the session | Interface
Local_IP | The local IP of the session | str
Remote_AS | The remote AS or list of ASes of the session | str
Remote_Node | Remote node for this session | str
Remote_Interface | Remote interface for this session | Interface
Remote_IP | Remote IP or prefix for this session | str
Address_Families | Address Families participating in this session | Set of str
Session_Type | The type of this session | str
Configured_Status | Configured status | str
Print the first 5 rows of the returned Dataframe
Step3:  Print the first row of the returned Dataframe
Step4:  BGP Session Status
Returns the dynamic status of configured BGP sessions.
Checks whether configured BGP peerings can be established. Each row represents one configured BGP peering and contains information about the session it is configured to establish. For dynamic peerings, one row is shown per compatible remote peer. Possible statuses for each session are NOT_COMPATIBLE, ESTABLISHED, and NOT_ESTABLISHED. NOT_COMPATIBLE sessions are those where one or both peers are misconfigured; the BgpSessionCompatibility question provides further insight into the nature of the configuration error. NOT_ESTABLISHED sessions are those that are configured compatibly but will not come up because peers cannot reach each other (e.g., due to being blocked by an ACL). ESTABLISHED sessions are those that are compatible and are expected to come up.
Inputs
Name | Description | Type | Optional | Default Value
--- | --- | --- | --- | --- 
nodes | Include sessions whose first node matches this specifier. | NodeSpec | True | 
remoteNodes | Include sessions whose second node matches this specifier. | NodeSpec | True | 
status | Only include sessions for which status matches this specifier. | BgpSessionStatusSpec | True | 
type | Only include sessions that match this specifier. | BgpSessionTypeSpec | True | 
Invocation
Step5:  Return Value
Name | Description | Type
--- | --- | ---
Node | The node where this session is configured | str
VRF | The VRF in which this session is configured | str
Local_AS | The local AS of the session | int
Local_Interface | Local interface of the session | Interface
Local_IP | The local IP of the session | str
Remote_AS | The remote AS or list of ASes of the session | str
Remote_Node | Remote node for this session | str
Remote_Interface | Remote interface for this session | Interface
Remote_IP | Remote IP or prefix for this session | str
Address_Families | Address Families participating in this session | Set of str
Session_Type | The type of this session | str
Established_Status | Established status | str
Print the first 5 rows of the returned Dataframe
Step6:  Print the first row of the returned Dataframe
Step7:  BGP Edges
Returns BGP adjacencies.
Lists all BGP adjacencies in the network.
Inputs
Name | Description | Type | Optional | Default Value
--- | --- | --- | --- | --- 
nodes | Include adjacencies whose first node matches this name or regex. | NodeSpec | True | .
remoteNodes | Include adjacencies whose second node matches this name or regex. | NodeSpec | True | .
Invocation
Step8:  Return Value
Name | Description | Type
--- | --- | ---
Node | Node from which the edge originates | str
IP | IP at the side of originator | str
Interface | Interface at which the edge originates | str
AS_Number | AS Number at the side of originator | str
Remote_Node | Node at which the edge terminates | str
Remote_IP | IP at the side of the responder | str
Remote_Interface | Interface at which the edge terminates | str
Remote_AS_Number | AS Number at the side of responder | str
Print the first 5 rows of the returned Dataframe
Step9:  Print the first row of the returned Dataframe
Step10:  OSPF Session Compatibility
Returns compatible OSPF sessions.
Returns compatible OSPF sessions in the network. A session is compatible if the interfaces involved are not shutdown and do run OSPF, are not OSPF passive and are associated with the same OSPF area.
Inputs
Name | Description | Type | Optional | Default Value
--- | --- | --- | --- | --- 
nodes | Include nodes matching this name or regex. | NodeSpec | True | 
remoteNodes | Include remote nodes matching this name or regex. | NodeSpec | True | 
statuses | Only include sessions matching this status specifier. | OspfSessionStatusSpec | True | 
Invocation
Step11:  Return Value
Name | Description | Type
--- | --- | ---
Interface | Interface | Interface
VRF | VRF | str
IP | Ip | str
Area | Area | int
Remote_Interface | Remote Interface | Interface
Remote_VRF | Remote VRF | str
Remote_IP | Remote IP | str
Remote_Area | Remote Area | int
Session_Status | Status of the OSPF session | str
Print the first 5 rows of the returned Dataframe
Step12:  Print the first row of the returned Dataframe
Step13:  OSPF Edges
Returns OSPF adjacencies.
Lists all OSPF adjacencies in the network.
Inputs
Name | Description | Type | Optional | Default Value
--- | --- | --- | --- | --- 
nodes | Include adjacencies whose first node matches this name or regex. | NodeSpec | True | .
remoteNodes | Include edges whose second node matches this name or regex. | NodeSpec | True | .
Invocation
Step14:  Return Value
Name | Description | Type
--- | --- | ---
Interface | Interface from which the edge originates | Interface
Remote_Interface | Interface at which the edge terminates | Interface
Print the first 5 rows of the returned Dataframe
Step15:  Print the first row of the returned Dataframe
Step16:  Test Route Policies
Evaluates the processing of a route by a given policy.
Find how the specified route is processed through the specified routing policies.
Inputs
Name | Description | Type | Optional | Default Value
--- | --- | --- | --- | --- 
nodes | Only examine filters on nodes matching this specifier. | NodeSpec | True | 
policies | Only consider policies that match this specifier. | RoutingPolicySpec | True | 
inputRoutes | The BGP route announcements to test the policy on. | List of BgpRoute | False | 
direction | The direction of the route, with respect to the device (IN/OUT). | str | False | 
Invocation
Step17:  Return Value
Name | Description | Type
--- | --- | ---
Node | The node that has the policy | str
Policy_Name | The name of this policy | str
Input_Route | The input route | BgpRoute
Action | The action of the policy on the input route | str
Output_Route | The output route, if any | BgpRoute
Difference | The difference between the input and output routes, if any | BgpRouteDiffs
Trace | Route policy trace that shows which clauses/terms matched the input route. If the trace is empty, either nothing matched or tracing is not yet been implemented for this policy type. This is an experimental feature whose content and format is subject to change. | List of TraceTree
Print the first 5 rows of the returned Dataframe
Step18:  Print the first row of the returned Dataframe
Step19:  Search Route Policies
Finds route announcements for which a route policy has a particular behavior.
This question finds route announcements for which a route policy has a particular behavior. The behaviors can be
Step20:  Return Value
Name | Description | Type
--- | --- | ---
Node | The node that has the policy | str
Policy_Name | The name of this policy | str
Input_Route | The input route | BgpRoute
Action | The action of the policy on the input route | str
Output_Route | The output route, if any | BgpRoute
Difference | The difference between the input and output routes, if any | BgpRouteDiffs
Trace | Route policy trace that shows which clauses/terms matched the input route. If the trace is empty, either nothing matched or tracing is not yet been implemented for this policy type. This is an experimental feature whose content and format is subject to change. | List of TraceTree
Print the first 5 rows of the returned Dataframe
Step21:  Print the first row of the returned Dataframe
<ASSISTANT_TASK:>
Python Code:
bf.set_network('generate_questions')
bf.set_snapshot('generate_questions')
Explanation: Routing Protocol Sessions and Policies
This category of questions reveals information regarding which routing
protocol sessions  are compatibly configured and which ones are
established. It also allows to you analyze BGP routing policies.
BGP Session Compatibility
BGP Session Status
BGP Edges
OSPF Session Compatibility
OSPF Edges
Test Route Policies
Search Route Policies
End of explanation
result = bf.q.bgpSessionCompatibility().answer().frame()
Explanation: BGP Session Compatibility
Returns the compatibility of configured BGP sessions.
Checks the settings of each configured BGP peering and reports any issue with those settings locally or incompatiblity with its remote counterparts. Each row represents one configured BGP peering on a node and contains information about the session it is meant to establish. For dynamic peers, there is one row per compatible remote peer. Statuses that indicate an independently misconfigured peerings include NO_LOCAL_AS, NO_REMOTE_AS, NO_LOCAL_IP (for eBGP single-hop peerings), LOCAL_IP_UNKNOWN_STATICALLY (for iBGP or eBGP multi-hop peerings), NO_REMOTE_IP (for point-to-point peerings), and NO_REMOTE_PREFIX (for dynamic peerings). INVALID_LOCAL_IP indicates that the peering's configured local IP does not belong to any active interface on the node; UNKNOWN_REMOTE indicates that the configured remote IP is not present in the network. A locally valid point-to-point peering is deemed HALF_OPEN if it has no compatible remote peers, UNIQUE_MATCH if it has exactly one compatible remote peer, or MULTIPLE_REMOTES if it has multiple compatible remote peers. A locally valid dynamic peering is deemed NO_MATCH_FOUND if it has no compatible remote peers, or DYNAMIC_MATCH if it has at least one compatible remote peer.
Inputs
Name | Description | Type | Optional | Default Value
--- | --- | --- | --- | --- 
nodes | Include sessions whose first node matches this specifier. | NodeSpec | True | 
remoteNodes | Include sessions whose second node matches this specifier. | NodeSpec | True | 
status | Only include sessions for which compatibility status matches this specifier. | BgpSessionCompatStatusSpec | True | 
type | Only include sessions that match this specifier. | BgpSessionTypeSpec | True | 
Invocation
End of explanation
result.head(5)
Explanation: Return Value
Name | Description | Type
--- | --- | ---
Node | The node where this session is configured | str
VRF | The VRF in which this session is configured | str
Local_AS | The local AS of the session | int
Local_Interface | Local interface of the session | Interface
Local_IP | The local IP of the session | str
Remote_AS | The remote AS or list of ASes of the session | str
Remote_Node | Remote node for this session | str
Remote_Interface | Remote interface for this session | Interface
Remote_IP | Remote IP or prefix for this session | str
Address_Families | Address Families participating in this session | Set of str
Session_Type | The type of this session | str
Configured_Status | Configured status | str
Print the first 5 rows of the returned Dataframe
End of explanation
result.iloc[0]
bf.set_network('generate_questions')
bf.set_snapshot('generate_questions')
Explanation: Print the first row of the returned Dataframe
End of explanation
result = bf.q.bgpSessionStatus().answer().frame()
Explanation: BGP Session Status
Returns the dynamic status of configured BGP sessions.
Checks whether configured BGP peerings can be established. Each row represents one configured BGP peering and contains information about the session it is configured to establish. For dynamic peerings, one row is shown per compatible remote peer. Possible statuses for each session are NOT_COMPATIBLE, ESTABLISHED, and NOT_ESTABLISHED. NOT_COMPATIBLE sessions are those where one or both peers are misconfigured; the BgpSessionCompatibility question provides further insight into the nature of the configuration error. NOT_ESTABLISHED sessions are those that are configured compatibly but will not come up because peers cannot reach each other (e.g., due to being blocked by an ACL). ESTABLISHED sessions are those that are compatible and are expected to come up.
Inputs
Name | Description | Type | Optional | Default Value
--- | --- | --- | --- | --- 
nodes | Include sessions whose first node matches this specifier. | NodeSpec | True | 
remoteNodes | Include sessions whose second node matches this specifier. | NodeSpec | True | 
status | Only include sessions for which status matches this specifier. | BgpSessionStatusSpec | True | 
type | Only include sessions that match this specifier. | BgpSessionTypeSpec | True | 
Invocation
End of explanation
result.head(5)
Explanation: Return Value
Name | Description | Type
--- | --- | ---
Node | The node where this session is configured | str
VRF | The VRF in which this session is configured | str
Local_AS | The local AS of the session | int
Local_Interface | Local interface of the session | Interface
Local_IP | The local IP of the session | str
Remote_AS | The remote AS or list of ASes of the session | str
Remote_Node | Remote node for this session | str
Remote_Interface | Remote interface for this session | Interface
Remote_IP | Remote IP or prefix for this session | str
Address_Families | Address Families participating in this session | Set of str
Session_Type | The type of this session | str
Established_Status | Established status | str
Print the first 5 rows of the returned Dataframe
End of explanation
result.iloc[0]
bf.set_network('generate_questions')
bf.set_snapshot('generate_questions')
Explanation: Print the first row of the returned Dataframe
End of explanation
result = bf.q.bgpEdges().answer().frame()
Explanation: BGP Edges
Returns BGP adjacencies.
Lists all BGP adjacencies in the network.
Inputs
Name | Description | Type | Optional | Default Value
--- | --- | --- | --- | --- 
nodes | Include adjacencies whose first node matches this name or regex. | NodeSpec | True | .
remoteNodes | Include adjacencies whose second node matches this name or regex. | NodeSpec | True | .
Invocation
End of explanation
result.head(5)
Explanation: Return Value
Name | Description | Type
--- | --- | ---
Node | Node from which the edge originates | str
IP | IP at the side of originator | str
Interface | Interface at which the edge originates | str
AS_Number | AS Number at the side of originator | str
Remote_Node | Node at which the edge terminates | str
Remote_IP | IP at the side of the responder | str
Remote_Interface | Interface at which the edge terminates | str
Remote_AS_Number | AS Number at the side of responder | str
Print the first 5 rows of the returned Dataframe
End of explanation
result.iloc[0]
bf.set_network('generate_questions')
bf.set_snapshot('generate_questions')
Explanation: Print the first row of the returned Dataframe
End of explanation
result = bf.q.ospfSessionCompatibility().answer().frame()
Explanation: OSPF Session Compatibility
Returns compatible OSPF sessions.
Returns compatible OSPF sessions in the network. A session is compatible if the interfaces involved are not shutdown and do run OSPF, are not OSPF passive and are associated with the same OSPF area.
Inputs
Name | Description | Type | Optional | Default Value
--- | --- | --- | --- | --- 
nodes | Include nodes matching this name or regex. | NodeSpec | True | 
remoteNodes | Include remote nodes matching this name or regex. | NodeSpec | True | 
statuses | Only include sessions matching this status specifier. | OspfSessionStatusSpec | True | 
Invocation
End of explanation
result.head(5)
Explanation: Return Value
Name | Description | Type
--- | --- | ---
Interface | Interface | Interface
VRF | VRF | str
IP | Ip | str
Area | Area | int
Remote_Interface | Remote Interface | Interface
Remote_VRF | Remote VRF | str
Remote_IP | Remote IP | str
Remote_Area | Remote Area | int
Session_Status | Status of the OSPF session | str
Print the first 5 rows of the returned Dataframe
End of explanation
result.iloc[0]
bf.set_network('generate_questions')
bf.set_snapshot('generate_questions')
Explanation: Print the first row of the returned Dataframe
End of explanation
result = bf.q.ospfEdges().answer().frame()
Explanation: OSPF Edges
Returns OSPF adjacencies.
Lists all OSPF adjacencies in the network.
Inputs
Name | Description | Type | Optional | Default Value
--- | --- | --- | --- | --- 
nodes | Include adjacencies whose first node matches this name or regex. | NodeSpec | True | .
remoteNodes | Include edges whose second node matches this name or regex. | NodeSpec | True | .
Invocation
End of explanation
result.head(5)
Explanation: Return Value
Name | Description | Type
--- | --- | ---
Interface | Interface from which the edge originates | Interface
Remote_Interface | Interface at which the edge terminates | Interface
Print the first 5 rows of the returned Dataframe
End of explanation
result.iloc[0]
bf.set_network('generate_questions')
bf.set_snapshot('generate_questions')
Explanation: Print the first row of the returned Dataframe
End of explanation
result = bf.q.testRoutePolicies(policies='/as1_to_/', direction='in', inputRoutes=list([BgpRoute(network='10.0.0.0/24', originatorIp='4.4.4.4', originType='egp', protocol='bgp', asPath=[[64512, 64513], [64514]], communities=['64512:42', '64513:21'])])).answer().frame()
Explanation: Test Route Policies
Evaluates the processing of a route by a given policy.
Find how the specified route is processed through the specified routing policies.
Inputs
Name | Description | Type | Optional | Default Value
--- | --- | --- | --- | --- 
nodes | Only examine filters on nodes matching this specifier. | NodeSpec | True | 
policies | Only consider policies that match this specifier. | RoutingPolicySpec | True | 
inputRoutes | The BGP route announcements to test the policy on. | List of BgpRoute | False | 
direction | The direction of the route, with respect to the device (IN/OUT). | str | False | 
Invocation
End of explanation
result.head(5)
Explanation: Return Value
Name | Description | Type
--- | --- | ---
Node | The node that has the policy | str
Policy_Name | The name of this policy | str
Input_Route | The input route | BgpRoute
Action | The action of the policy on the input route | str
Output_Route | The output route, if any | BgpRoute
Difference | The difference between the input and output routes, if any | BgpRouteDiffs
Trace | Route policy trace that shows which clauses/terms matched the input route. If the trace is empty, either nothing matched or tracing is not yet been implemented for this policy type. This is an experimental feature whose content and format is subject to change. | List of TraceTree
Print the first 5 rows of the returned Dataframe
End of explanation
result.iloc[0]
bf.set_network('generate_questions')
bf.set_snapshot('generate_questions')
Explanation: Print the first row of the returned Dataframe
End of explanation
result = bf.q.searchRoutePolicies(nodes='/^as1/', policies='/as1_to_/', inputConstraints=BgpRouteConstraints(prefix=["10.0.0.0/8:8-32", "172.16.0.0/28:28-32", "192.168.0.0/16:16-32"]), action='permit').answer().frame()
Explanation: Search Route Policies
Finds route announcements for which a route policy has a particular behavior.
This question finds route announcements for which a route policy has a particular behavior. The behaviors can be: that the policy permits the route (permit) or that it denies the route (deny). Constraints can be imposed on the input route announcements of interest and, in the case of a permit action, also on the output route announcements of interest. Route policies are selected using node and policy specifiers, which might match multiple policies. In this case, a (possibly different) answer will be found for each policy. Note: This question currently does not support all of the route policy features that Batfish supports. The question only supports common forms of matching on prefixes, communities, and AS-paths, as well as common forms of setting communities, the local preference, and the metric. The question logs all unsupported features that it encounters as warnings. Due to unsupported features, it is possible for the question to return no answers even for route policies that can in fact exhibit the specified behavior.
Inputs
Name | Description | Type | Optional | Default Value
--- | --- | --- | --- | --- 
nodes | Only examine policies on nodes matching this specifier. | NodeSpec | True | 
policies | Only consider policies that match this specifier. | RoutingPolicySpec | True | 
inputConstraints | Constraints on the set of input BGP route announcements to consider. | BgpRouteConstraints | True | 
action | The behavior to be evaluated. Specify exactly one of permit or deny. | str | True | 
outputConstraints | Constraints on the set of output BGP route announcements to consider. | BgpRouteConstraints | True | 
Invocation
End of explanation
result.head(5)
Explanation: Return Value
Name | Description | Type
--- | --- | ---
Node | The node that has the policy | str
Policy_Name | The name of this policy | str
Input_Route | The input route | BgpRoute
Action | The action of the policy on the input route | str
Output_Route | The output route, if any | BgpRoute
Difference | The difference between the input and output routes, if any | BgpRouteDiffs
Trace | Route policy trace that shows which clauses/terms matched the input route. If the trace is empty, either nothing matched or tracing is not yet been implemented for this policy type. This is an experimental feature whose content and format is subject to change. | List of TraceTree
Print the first 5 rows of the returned Dataframe
End of explanation
result.iloc[0]
Explanation: Print the first row of the returned Dataframe
End of explanation
<END_TASK>