Words and Phrases
View the Network Connectivity
With the NNM iSPI for IP Multicast, you can view the complete connectivity of the Multicast network by using the map views. This topic includes the following sections:
- Forward Tree View
- Reverse Path View
- IP Multicast Map Symbols
- IP Multicast Neighbor View
- Use Map View Toolbar
- Flow Monitoring
The NNM iSPI for IP Multicast presents the additional map views that help you construct the multicast flow path in upstream or downstream direction. You can access the views by using the Actions menu from the console.
The NNM iSPI for IP Multicast includes the following map views:
- Forwarding Tree View
- Reverse Path View
- Neighbor View
- Snapshots View (Baseline Snapshot, Last Snapshot, and Deviation Tree Snapshot)
Use the map views for the following tasks:
- Troubleshoot and investigate the loss in PIM adjacency for the selected node in the network. Check the Neighbor View.
- Find the reason for the multicast flow to be disrupted and not able to reach the intended destination. Check the Reverse Path.
- Find the complete multicast flow (*, G) and (S, G) in the network. Identify the nodes connected to the receivers of the selected flow. Check the Forwarding Tree.
- Monitor the IP Multicast traffic flow rate available on the map views. The performance data is only available after you install the NNM iSPI Performance for Metrics. Check the Forwarding Tree or Reverse Path.
- Monitor the Multicast distribution tree. You can also see the baseline snapshot against which you monitor a particular flow. Check View Snapshots.
- When you get an incident related to the IP Multicast flows (See The Incidents Related to IP Multicast Flows), you can verify or troubleshoot the problem reported in the incident using the pictorial representation of the flow. Check View Snapshots.
The NNM iSPI for IP Multicast uses the default map settings of NNMi to show the number of nodes on the map views. If you want to change the settings, use the NNMi console. For more information, see Configure Default Map Settings.
The NNM iSPI for IP Multicast uses NNMi capability to export the current map view to Visio documents for later use. For more information, see Help for NNMi, Monitor with Map Views.
For more information about the map views, see IP Multicast Map Symbols.
Forward Tree View
The Forwarding Tree map view shows the available multicast routing distribution trees for a specific multicast group that a packet can take to reach the interested receivers. The Forwarding Tree map view uses NNMi shapes and status color for the nodes. The map view shows the real-time traffic path from the Source node or Rendezvous Point (RP) node to all the downstream receivers.
The NNM iSPI for IP Multicast displays the Forwarding Tree including multiple sites or WANs if your distribution tree spreads across multiple sites or WANs. This is possible only if you have correctly configured the PIM interfaces across WANs that connect to each other. See, Configure Multi-site Multicast Connectivity to know more about the configuration of multicast WAN neighbors. A cloud represents the connectivity between two interfaces connected across WANs.
You cannot see the forwarding tree beyond any unmanaged node. The NNM iSPI for IP Multicast displays a warning message when the forwarding tree encounters any unmanaged node.
The NNM iSPI for IP Multicast displays the entire connections if you have access to at least a single node involved in the forwarding tree. If you do not have access to a particular node in the forwarding tree, you cannot see the full details of that node and its interfaces. However, you can see the names of such nodes and interfaces.
All the downstream trees (towards the receivers) are available from the starting-point on the map view. The forwarding tree uses arrows for the direction of data flow, thickness of connection lines, and color to indicate the following:
- Forwarding tree based upon source-specific trees (Shortest Path Tree). The thin pink-colored connection lines are used to show the Shortest Path Tree (S, G). The shortest tree always starts from the source node.
- Forwarding tree based upon shared trees (*, G). The thick orange-colored connection lines are used to show the shared tree (*, G). The shared tree starts from the Rendezvous Point (RP) node.
If the same RP address is configured on multiple interfaces, the NNM iSPI for IP Multicast does not draw the forwarding tree from RP.
The NNM iSPI for IP Multicast displays the multicast-specific icons on the map views. For more information, see IP Multicast Map Symbols.
Use the Forwarding Tree map view for the following tasks:
- Find the IP multicast traffic flow in the downstream direction.
-
Monitor the multicast traffic flow rate if the NNM iSPI Performance for Metrics is installed and running.
Flow rate value appears as zero in the Forwarding Tree view when the NNM iSPI Performance for Metrics is not enabled. The correct value appears when the NNM iSPI Performance for Metrics is installed and running.
- Find the Shortest Path Tree and Shared Tree from the map view.
- Troubleshoot the cause of congestion or loss of connectivity in the multicast traffic flow. For example, if the multicast flow rate is more than the expected value, check the IP Multicast report.
- Find the nodes and interfaces receiving the degraded flow. Check the flow rate available on the map view.
- Find the Rendezvous Point (RP) node in the multicast flow.
- Use the Analysis pane to get an overview of the object selected.
Messages in the Map Views
You can troubleshoot your network by checking the messages listed on the map views. The messages are categorized as follows:
- Long messages
- Tool Tip
Example of the message appearing on the map views:
The starting node is not available in the topology.
This message appears when you try to launch the forwarding tree from a node that is not discovered in the IP Multicast topology.
Access the Forwarding Tree View
You can access the forwarding tree map view for the selected multicast group to find out the nodes and interfaces participating in the active flow.
To start a Forwarding Tree map view:
- From the Workspaces navigation pane, click IP Multicast -> IP Multicast Flow. The IP Multicast flow view opens in the right pane.
- In the IP Multicast Flow view, select one of the (Source, Group) pair from the available multicast flows.
- Select Actions -> IP Multicast -> Forwarding Tree. The forwarding tree graph opens in a new window.
- Select an option from the Forwarding Tree map view toolbar. See Options.
- Click
(the Draw Tree icon).
The Forwarding Tree map view shows the following:
- Participating nodes and their status
- Participating PIM interfaces and their status
- Source node
- Receiver icon to represent the receivers connected to the node
- RP node
- Long and short messages if the map view is not complete or not able to start.
- Flow rate
- Direction of data transfer
- Shortest tree or Shared tree
- Cloud if there is connectivity between interfaces across WANs
- Total number of map objects such as node, source, and receiver
- Last update time and date
In the forwarding tree view, the NNM iSPI for IP Multicast displays the nodes associated with a single tenant.
Troubleshoot the network connectivity from the Forwarding Tree view:
- Navigate to the IP Multicast Forwarding Tree view.
- Check the flow rate available on the PIM interface.
- To open the node or interface, use any one of the following:
- Double-click the node or interface whose status is down.
- Select the node, click
(the Open icon).
- Navigate to the Incidents tab to view the incident and troubleshoot the cause of loss of network connectivity.
Reverse Path View
The Reverse Path map view shows the multicast routing path that a packet takes from a receiver or the selected router to reach the source or the Rendezvous Point (RP) node.
All the upstream paths (towards the source) are available from a receiver on the map view. The map view shows nodes and interfaces participating in the upstream path (towards the source). The Reverse Path map view uses NNMi shapes and status color for the nodes. In addition, shows the arrows for the direction of traffic flow. The NNM iSPI for IP Multicast displays the icons, color of the connection lines to indicate the following:
- Reverse Path based on source-specific trees (Shortest Path Tree). The thin pink-colored connection lines are used to show the Shortest Path Tree (S, G).
- Reverse Path based on Shared Tree. The thick orange-colored connection lines are used to show the Shared Tree (*, G).
The NNM iSPI for IP Multicast displays the Reverse Path including multiple sites or WANs if your distribution tree spreads across multiple sites or WANs. This is possible only if you have correctly configured the PIM interfaces across WANs that connect to each other. See "Configure Multi-site Multicast Connectivity" to know more about the configuration of multicast WAN neighbors. A cloud represents the connectivity between two interfaces connected across WANs.
The NNM iSPI for IP Multicast displays the entire connections if you have access to at least a single node involved in the reverse path. If you do not have access to a particular node in the reverse path, you cannot see the details of that node. However, you can see the labels of the nodes.
The NNM iSPI for IP Multicast displays the multicast-specific icons on the map views. For more information, see IP Multicast Map Symbols. The Analysis pane provides you an overview of the object selected.
You cannot see the reverse path beyond any unmanaged node. The NNM iSPI for IP Multicast displays a warning message when the reverse path encounters any unmanaged node.
Use the Reverse Path map view for the following tasks:
- Find the IP Multicast traffic flow from a receiver or router in the upstream direction.
- Navigate to the Multicast Node form or PIM interface form.
-
Diagnosing the connectivity problems. Reverse Path view shows the nodes and PIM interfaces participating in the current path. You can quickly identify problematic interfaces or nodes where the flow rate is degrading. The flow rate is available if the NNM iSPI Performance for Metrics is installed and running.
Flow rate value appears as zero in the Reverse Path view when the NNM iSPI Performance for Metrics is not enabled. The correct value appears when the NNM iSPI Performance for Metrics is installed and running.
- Monitor the Multicast traffic flow rate if the NNM iSPI Performance for Metrics is installed.
- Navigate to the neighbor view to check and compare the network topology.
- Find the RP node in the multicast traffic flow.
Messages in the map views
You can troubleshoot your network by checking the messages listed on the map views. The messages are categorized as follows:
- Long messages that appear when you start the map or when the map view is incomplete.
- Tool Tip appears on the map views.
Example of the message appearing on the map views:
The RP Node is not available in the discovered multicast topology.
This message appears when the RP node is either not managed or currently out of service.
You can access the reverse path view for the selected (Source, Group) to find out the nodes and PIM interfaces participating in the current path.
To launch a Reverse Path map view:
- From the Workspaces navigation pane, click IP Multicast -> IP Multicast Flow. The IP Multicast flow view opens in the right pane.
- In the IP Multicast Flow view, select any one of the IP Multicast flow, and then click Actions -> Multicast -> Reverse Path. The reverse path map view appears in a new window.
- Select an option from the Reverse Path map view toolbar. See Options.
- Click (the Get Path icon).
In the reverse path view, the NNM iSPI for IP Multicast displays the nodes associated with a single tenant.
Troubleshoot the network connectivity from the Reverse Path map view:
- Navigate to the IP Multicast Reverse Path map view.
- Check the flow rate available on the multicast-en abled node.
- To open the node or interface, use any one of the following:
- Double-click the node or interface whose status is down.
- Select the node, click
(the Open icon).
- Navigate to the Incidents tab to view the incident and troubleshoot the cause of loss of network connectivity.
IP Multicast Map Symbols
The NNM iSPI for IP Multicast uses NNMi shapes and symbols for the nodes and interfaces. The NNM iSPI for IP Multicast uses the additional map symbols to represent the IP Multicast objects such as source and receiver nodes on the map views. Similar to NNMi, the background shape indicates the type of the device and the color of the background shape indicates the current health of the device.
| Icon | Description |
|---|---|
|
Shows the source node of the selected IP Multicast flow (S, G). |
|
Shows the receiver node of the selected IP Multicast flow (S, G). |
|
Shows the subnet icon. The subnet icon appears on the Neighbor view. |
|
Shows the connectivity between interfaces connected across WANs. |
| Type | Description |
|---|---|
| Thick lines | Shows the shared tree (*, G) on the map view. |
| Thin lines |
Shows the shortest path (S, G) on the map view. |
| Type | Description |
|---|---|
| Pink | Shows the shortest path on the map view. |
| Orange | Shows the shared tree on the map view. |
IP Multicast Neighbor View
The Neighbor view provides the PIM neighbor topology associated with the selected node. With the NNM iSPI for IP Multicast, you can launch the neighbor view of the selected node. In addition, the Neighbor view shows the neighboring relationships of the multicast-enabled interfaces in the subnet.
The NNM iSPI for IP Multicast displays the Neighbor View including multiple sites or WANs if your distribution tree spreads across multiple sites or WANs. This is possible only if you have correctly configured the PIM interfaces across WANs that connect to each other. See "Configure Multi-site Multicast Connectivity" to know more about the configuration of multicast WAN neighbors. A cloud represents the connectivity between two interfaces connected across WANs.
The NNM iSPI for IP Multicast displays all PIM neighbors of the selected node. If you do not have access to a particular node in the neighbor view, you cannot see the full details of that node and its interfaces. However, you can see the names of such nodes and interfaces.
The NNM iSPI for IP Multicast displays the multicast-specific icons on the map views. For more information on map symbols, see IP Multicast Map Symbols.
Use the Neighbor map view for the following tasks:
- Find the PIM neighbor topology of the selected node or interface.
- Find the PIM neighbor adjacency of the selected node. Understand the node connectivity between your devices.
- Troubleshoot the cause of congestion or disruption in the multicast traffic flow by checking the neighbor topology and compare the forwarding tree view or reverse path with the neighbor view.
The Neighbor View provides the following information:
- PIM neighbor topology of the selected node. The selected node appears in the bold text on the map view.
- Number of hops in the topology. The maximum number of hops available in a neighbor view is 9. You can select the hops from the map view toolbar.
- Shows the node and interface status. Double-click the node or interface to view the node or interface form.
- Shows the performance data such as percentage utilization in and out for each PIM interface. The Utilization In and Out metrics help you find out the incoming and outgoing multicast traffic from the PIM interfaces. This performance data is only available if the NNM iSPI Performance for Metrics is installed and running.
- Analysis pane option is available for the multicast nodes and interfaces.
- Messages appear when the neighbor view does not appear as per the requirement.
You can access the map view for the selected node to find the neighbor topology:
To launch a Neighbor map view:
- From the Workspaces navigation pane, click IP Multicast -> IP Multicast Nodes view The IP Multicast Node view opens in the right pane.
- Select a node of interest to view the neighbor topology. Select Actions -> IP Multicast -> Neighbor View.
- From the map view toolbar, select the number of hops. The default number of hops is 1 for the Neighbor view. The Neighbor view appears.
To launch a Neighbor view from the Reverse Path or Forwarding Tree View:
- Navigate to the Forwarding Tree view. From the Workspaces navigation pane, click IP Multicast -> IP Multicast Flow view. The IP Multicast flow view appears.
- Select a flow of your interest to view the forwarding tree or reverse path map view. Select Actions -> IP Multicast -> Reverse Path or Forwarding Tree. The reverse path or forwarding tree appears.
- Select a node from the tree or path view and click Actions -> IP Multicast -> Neighbor View.
- From the map view toolbar, select the number of hops. The default number of hops is 1 for the Neighbor view. The Neighbor View appears.
You can access the map view for the selected node or interface to find out the PIM neighbor topology.
In the neighbor path view, the NNM iSPI for IP Multicast displays the nodes associated with a single tenant.
Use Map View Toolbar
The NNM iSPI for IP Multicast provides the map view toolbar to help you customize your map views for the following tasks:
- Shows the Forwarding tree from the source or Rendezvous Point (RP) or the router.
- Shows the Reverse path from the receiver or the router to source or RP.
- Shows the Neighbor View of the selected nodes with the number of hops (1 to 9) selected.
- Shows snapshots of baselineThe standard flow, which is used as a basis for comparison tree, last forwarding tree, and deviation tree.
The map view toolbar contains the NNMi icons such as Open, Refresh, Status Refresh, and Find. For more information, see NNMi Help, Using the View Toolbars.
The following table lists the NNM iSPI for IP Multicast forwarding tree options:
| Option | Description |
|---|---|
| Tree From | Select the Source or RP from the list to show the forwarding tree. The forwarding tree starts from the selected source, router, or RP node. |
| Hostname/ IP address | Type the Hostname or IP address of the source, router or RP from where you want to view the forwarding tree. |
The following table lists the NNM iSPI for IP Multicast reverse path options:
| Icon | Description |
|---|---|
| Path To | Select an option Source or Rendezvous Point to draw the reverse path. |
| Starting From |
Select an option from the list to start the Reverse Path view. The available options are: Router - Starts the reverse path from the router. Receiver - Starts the reverse path from the receiver. |
| Hostname/ IP address | Type the Hostname or IP address of the receiver or router from where you want to view the reverse path. |
The following table lists the NNM iSPI for IP Multicast Neighbor view options:
| Option | Description |
|---|---|
| Number of Hops | Select the value from the hop drop-down box. For example, select the value 5. The neighbor view appears with the 5 hops. |
| Option | Description |
|---|---|
| Snapshot View | Select Baseline Snapshot, Deviation Tree Snapshot, or Last SnapshotThe last sample forwarding tree collected to view each of them. |
Flow Monitoring
The NNM iSPI for IP Multicast enables you to monitor the flows that you need to monitor.
The flow monitoring feature helps you:
- Make sure that all routers receive the monitored flow
- Find out when flow rateThe amount of multicast data (in bps, kbps, or mbps) passing through the PIM interfaces of the participating routers. variation is more than the specified threshold
- Know the change in Rendezvous Point (RP)
If you monitor a flow, you can immediately know when there is an addition or deletion of nodes through the incidents generated by the NNM iSPI for IP Multicast. The incidents can also alert you when there is a change in the RP or if there is a flow rate deviation more than the specified thresholds.
If you enable monitoring of a flow, you can see the pictorial representation of snapshots of baseline tree (Baseline Snapshot), the last sample forwarding tree collected (Last Snapshot), and the deviation tree snapshot (Deviation Snapshot). See Enable Monitoring. The baseline snapshot is the forwarding tree that you consider as the standard pattern of flow or the ideal flow for the selected (S, G) flow. The NNM iSPI for IP Multicast creates the baseline for each flow when you enable monitoring of the flow. The baseline snapshot acts as a base to compare against the forwarding tree for that particular flow at each monitoring cycle.
If Auto Baselining is enabled in the configuration form, the forwarding tree collected in the first monitoring cycle after marking a flow for monitoring is considered as the baseline snapshot. The NNM iSPI for IP Multicast determines the starting router. The baseline snapshot and the subsequent sample snapshots are always calculated from the same starting router for the particular flow. You can overwrite the baseline snapshot with the last snapshot. See Overwrite Snapshot.
The nodes and interfaces, which were in the original baseline snapshot, always appear in the baseline snapshot even if you delete some of them from the inventory. You cannot get any additional information about those deleted nodes or interfaces and the actions performed on such objects do not yield any result.
If you clear the Auto Baselining check box in the IP Multicast configuration form, the NNM iSPI for IP Multicast does not create baseline snapshots. In the absence of baseline snapshot, the NNM iSPI for IP Multicast does not generate any incident related to flow monitoring. By default, Auto Baselining option is turned on.
If you enable the monitoring of a flow, the NNM iSPI for IP Multicast computes the forwarding tree and compares the new sample snapshot against the baseline snapshot in each monitoring cycle which runs at the configured monitoring interval. If the NNM iSPI for IP Multicast finds any flow rate deviation in the tree that is more than the threshold configured, it generates an incident. You can configure the percentage of flow rate deviation allowed in the IP Multicast configuration form. See Configure the Flow Monitoring Settings.
The NNM iSPI for IP Multicast generates incidents in the following situations:
- Deviation in flow rate beyond the specified threshold
- Addition of nodes to a flow
- Deletion of nodes from a flow
- Change in the rendezvous point
- Baseline creation fails
- Last snapshot creation fails
The deviation tree snapshot displays the pictorial representation of the difference between the baseline snapshot and the last snapshot, which will be helpful in troubleshooting issues detected in the flows selected for monitoring. For example, if there is an incident namely MulticastFlowTopoChange due to the deletion of a node, the deviation tree snapshot shows you the particular node that no longer receives the multicast data for this flow.
Baseline snapshot and last snapshot are dynamic representation of multicast topology for a selected flow. Deviation tree snapshot does not represent multicast topology of a selected flow but it only captures the difference between baseline snapshot and last snapshot for that flow in map layout.
You can use the snapshots for the following tasks:
- Launch the topology of the current forwarding tree as well as the baseline snapshot. If you find the current forwarding tree better than your baseline snapshot, you can overwrite the baseline snapshot with the forwarding tree that you received in the last monitoring cycle.
- Compare the last sample tree with the baseline snapshot and identify the flow rate deviation, RP change, addition or deletion of nodes if there is any.
- See the change in topology of the baseline snapshot (through deviation tree snapshot). Identify the nodes that have been deleted or added.
The Analysis pane provides you an overview of the object selected.
You can monitor your critical flows to observe the dynamics of flows. If you enable monitoring, you can see the baseline snapshot and the last snapshot provided that the flow completed at least one monitoring cycle. The monitoring cycle runs based on the time that you configure in the IP Multicast configuration form as Monitoring Interval. See "Configure Flow Monitoring Settings". You can also have flow specific monitoring settings for each monitored flow. For more information, see "Flow Specific Monitoring Settings". The flows enabled for monitoring remain in inventory even if they become inactive.
If you turn off the Auto Baselining option in the IP Multicast configuration form, the NNM iSPI for IP Multicast does not create baseline snapshots.
To enable monitoring:
- From the Workspaces navigation pane, click IP Multicast -> IP Multicast Flows. The IP Multicast flow view opens.
- In the IP Multicast Flow view, select the flows that you want to monitor and select Actions -> IP Multicast -> Enable Monitoring. A message confirms that you have enabled monitoring.
- Click
(the Refresh icon). The check mark (
) appears under Monitored column for the selected flows.
You can stop monitoring the flow at any time. If you choose to disable the monitoring, the snapshot views are not available and the status of the flow is No Status. If you disable monitoring, the NNM iSPI for IP Multicast deletes the inactive flows from the inventory.
To disable monitoring:
- From the Workspaces navigation pane, click IP Multicast -> IP Multicast Flows. The IP Multicast flow opens.
- In the IP Multicast Flow view, select the flows for which you want to discontinue monitoring and select Actions -> IP Multicast -> Disable Monitoring. A message confirms that you have disabled monitoring.
- Click (the Refresh icon). The check mark () under the Monitored column disappears.
If you disable monitoring, the NNM iSPI for IP Multicast deletes the baseline snapshot and the last snapshot. All incidents associated with the flow monitoring are also closed.
You can view the baseline snapshotThe snapshot of the standard flow, which is used as a basis for comparison., the last snapshot, and the deviation tree snapshot if you have already enabled monitoring of the flow and the flow has completed at least one monitoring cycle. See Enable Monitoring.
To view the snapshots:
- From the Workspaces navigation pane, click IP Multicast -> IP Multicast Flows. The IP Multicast flow view opens.
- In the IP Multicast Flow view, select the flow whose snapshots you want to see and select Actions -> IP Multicast -> View Snapshots. The snapshots open in a new window.
- Select an option from the Snapshot View drop down list. There are three options available:
- Baseline Snapshot: select this to see the baseline snapshot.
- Last Snapshot: select this to see the last forwarding tree collected.
- Deviation Tree Snapshot: select this to see the change between the baseline snapshot and the last snapshot.
- Click (the Draw Tree icon).
You can select only one flow for this action.
You can overwrite baseline snapshot of a flow at any time with the last snapshot collected for that flow. You can see the last snapshot collected after each monitoring cycle. If you are sure that a particular snapshot collected correctly represents your multicast network, you can use that snapshot to overwrite your baseline snapshot. If you do this, the last snapshot starts to function as the baseline snapshot and all the subsequent flows collected are compared against this new baseline snapshot.
If you have disabled Auto Baselining option in the IP Multicast configuration form, you can use this action to create a baseline. The last sample snapshot collected becomes the baseline snapshot. For more information, see "Configure Flow Monitoring Settings".
To overwrite snapshot:
- From the Workspaces navigation pane, click IP Multicast -> IP Multicast Flows. The IP Multicast flow view opens.
- In the IP Multicast Flow view, select the flow whose baseline snapshot you want to overwrite and select Actions -> IP Multicast -> Overwrite Snapshot. A message confirms that you have overwritten the baseline snapshot of the selected flow with the last snapshot.
When you perform this action on a multicast flow, the status of the flow goes back to Normal and the NNM iSPI for IP Multicast closes all incidents related to that flow, as these incidents were generated on the basis of the previous baseline. Now the last snapshot has become the baseline snapshot and those incidents are no longer valid.
You can monitor your critical flows on demand, if you have already enabled monitoring. You do not have to wait for the monitoring cycle to complete. This enables you to get the sample snapshot of the flow instantly and compare it against the baseline snapshot and report the failure conditions. You can do the instant monitoring only if you enable monitoring of the flow. You can perform this action only on the active flows. See Enable Monitoring.
To perform instant monitoring:
- From the Workspaces navigation pane, click IP Multicast -> IP Multicast Flows. The IP Multicast flow view opens.
- In the IP Multicast Flow view, select the flow that you want to monitor instantly and select Actions -> IP Multicast -> Instant Monitoring. A message confirms that you initiated an instant monitoring of the selected flow.
View Participating Routers and Receivers of a Flow
You can view the participating routers and receivers of a flow using the NNM iSPI for IP Multicast. This feature helps you to ensure that all the important routers and the receivers receive a particular flow.
You can see the list of participating routers and receivers of a flow if the particular flow fulfills the following criteria:
- The flow must be managed by the NNM iSPI for IP Multicast.
- The flow must be active.
To view the list of participating routers and receivers of a flow:
- From the Workspaces navigation pane, click IP Multicast -> IP Multicast Flows. The IP Multicast Flows view appears.
- In the IP Multicast Flows view, select a flow and then click Actions -> IP Multicast -> Show Receivers. Flow Participating Routers and Receivers window opens. You can see the Flow Information at the top of the window. The flow information includes IP address of the source, IP address of the group, and name of the tenant. In the left pane, the host names of the routers participating in the selected flow are displayed. If the hostname is not available, the IP address of the participating router is displayed.
- Double-click a participating router of your interest. Alternatively, select a router and click the List all receivers in downstream button. The downstream receivers of the flow from the selected router appear in the right pane along with the following attributes:
- Host Name: The host name of the receiver. If the host name of the receiver is not available, the IP address is displayed.
- Receiver Up Time: The time duration (in x days, hh:mm:ss format) for which the receiver has been receiving the flow.
- IGMP Protocol Version: The version of IGMP configured on the interface to which this receiver is connected.
- Leaf Router: The name of the multicast router to which the receiver is connected.
- Interface of Leaf Router: The name of the interface on the router. The receiver establishes a connection with the multicast router through this interface.
The receiver fetching process times out after 180 seconds with a warning message. If you select a router on the upstream side of the flow (towards the start router) the fetching request might not reach the entire list of downstream receivers. Therefore, all the downstream receivers might not appear in the right pane. In that situation, select a different router, which is on the downstream side of the flow.
Filter Receivers
You can use the Define Filter icon to configure rules to filter the listed receivers in the Flow Receivers view. Apply the rules on the following attributes of the receivers to see the receivers of your choice:
- Host Name
- Receiver Up Time
- IGMP Protocol Version
- Leaf Router
- Interface of Leaf Router
To filter the Flow Receivers view:
- Click
(the Define Filter icon).This opens the Filter dialog box. - Select one of the following options:
- Match all rules: filters and lists the receivers that fulfill all rules that you configure for filtering the listed receivers.
- Match any rule: filters and lists the receivers that fulfill any of the rules that you configure for filtering the listed receivers.
- Select a column from the drop-down list. You can apply a condition to one of the following columns:
- Host Name
- Receiver Up Time
- IGMP Protocol Version
- Leaf Router
- Interface of Leaf Router
- Any Column
- Select a condition to apply to the column you selected. You can select one of the following conditions:
- contains: filters and lists all the receivers that contains a value that you type in the Value text box.
- is: filters and lists all the receivers that have a value that is equal to the value that you type in the Value text box.
- starts with: filters and lists all the receivers that start with the value that you type in the Value text box.
- ends with: filters and lists all the receivers that end with the value that you type in the Value text box.
- does not contain: filters and lists all the receivers that do not contain the value that you type in the Value text box.
- is not: filters and lists all the receivers that is not equal to the value that you type in the Value text box.
- does not start with: filters and lists all the receivers that do not start with the value that you type in the Value text box.
- does not end with: filters and lists all the receivers that do not end with the value that you type in the Value text box.
- is empty: filters and lists all the receivers for which the selected column is empty.
- Type a value in the Value text box. The filtering takes place on the selected column based on this value and the condition that you selected.
- Click
(the Add Filter icon) to add more rules. - Click the Filter tab. The filtered list of receivers are listed.
After viewing the filtered list, always remove the filter. To remove the filter, click Clear Filter.
Related Topics: