Use > Monitor with the NNM iSPI for MPLS > Monitor Your Network with MPLS Forms > TE Tunnel Form

TE Tunnel Form

The TE Tunnel form provides details about the selected TE tunnel. The TE Tunnel form shows the tunnel properties and attributes. This topic includes the following sections:

Use the TE Tunnel form for the following tasks:

  • Monitor the TE Tunnels on the network.
  • Check the Incidents tab to view the cause of the change in the status.
  • Navigate to the Hops tab to check all the intermediate routers available in the TE Tunnel.
  • Access the TE Tunnel Path view.
Basic Attributes
Attribute Description

Name, Head, Tail, Tail IP Address, Description, Status, and Bandwidth

The attributes listed in the TE Form are same as available in the TE Tunnel Inventory. For more information, see TE Tunnel Inventory.
Management Mode

Used to indicate whether the current node is being managed. This field also lets you specify whether a node is temporarily out of service. The NNM iSPI for MPLS shows the same values for TE Tunnels as that of the corresponding nodes. Possible values are:

  • Managed – The node, interface, or address is managed by NNMi.
  • Not Managed – The node is intentionally not managed. For example, the node might not be accessible because it is in a private network. NNMi does not update discovery information or monitor these nodes
  • Out of Service – A node is unavailable because it is out of service. NNMi does not update discovery information or monitor these nodes. This attribute is useful for notifying NNMi when a device has been temporarily out of service.
The NNM iSPI for MPLS does not support modification of Management Mode for TE Tunnel
Management Type Management type for TE Tunnel will always be Node Inherited.
Head Interface The interface of the head node where the selected TE Tunnel is configured. To view the Head interface details, click (the Lookup icon).
Setup Priority

The priority used to determine if the selected TE Tunnel is eligible to be preempted.

The value specifies the priority used when you are setting up the tunnel. A value of 0 shows the highest priority and enables the tunnel to preempt all other tunnels except those with a holding priority of 0. A value of 7 shows the lowest priority and does not enable a new tunnel to preempt any existing tunnel.

Hold Priority

The holding priority value specifies the priority used when protecting the tunnel from preemption by other tunnels.

A value of 0 shows the highest priority and protects this tunnel from preemption by all other tunnels. A value of 7 shows the lowest priority and allows all tunnels with a higher priority to preempt this tunnel.

Create Time The time when the TE tunnel was created.
Status Last Modified The status of the TE tunnel is calculated whenever there is a change in topology. Status Last Modified shows the date and time on which the status was last set.

Analysis Pane

Information shown for TE Tunnel form is same as that in TE Tunnel Inventory. For more information, see TE Tunnel Inventory.

Attributes Tab

The TE Tunnel Form provides details about the selected TE Tunnel. The Attributes tab provides the TE Tunnel details listing the capabilities of the head node device type for Cisco, Juniper, and Alcatel routers. The listed attributes are available from the Cisco, Juniper, and Alcatel MIBs.

Supported Attributes for Cisco Nodes
Attribute Description
fastReroute

If the tunnel is configured with the fastReroute attribute, the value is true. True is represented by .

isComputed If the tunnel is configured with the isComputed attribute, the value is true. The status of the flag is either true or false. True is represented by .
isPersistent

If the tunnel is configured with the isPersistent attribute, the value is true.True is represented by .

isPinned If the tunnel is configured with the isPinned attribute, the value is true. True is represented by .
mergingPermitted If the tunnel is configured with the MergingPermitted attribute, the value is true. True is represented by .
record Route If the tunnel is configured with the recordRoute attribute, the value is true. True is represented by

Supported Attributes for Juniper Nodes

Attribute Description

adaptive

 If the tunnel is configured with the adaptive attribute, the value is true. True is represented by .

cspf

 If the tunnel is configured with the cspf attribute, the value is true. True is represented by .
fast-reroute If the tunnel is configured with the fast-reroute attribute, the value is true. True is represented by .
mergeable If the tunnel is configured with the mergeable attribute, the value is true. The status of the flag is either true or false. True is represented by .
preemptable  If the tunnel is configured with the preemptable attribute, the value is true. The status of the flag is either true or false. True is represented by .
preemptive  If the tunnel is configured with the preemptive attribute, the value is true. The status of the flag is either true or false. True is represented by .
record-route If the tunnel is configured with the record-route attribute, the value is true. The status of the flag is either true or false. True is represented by .
 Supported Attributes for Alcatel Nodes
Attribute Description
record-route

If the tunnel is configured with the record-route , the value is true. The status of the flag is either true or false. True is represented by .
fast-reroute

If the tunnel is configured with the fast-reroute attribute, the value is true otherwise it is false. True is represented by .

decrementTtl

If the tunnel is configured with the decrementTtl attribute, the value is true. True is represented by . When the value is set to 'true', the ingress ESREdge Service Router includes the TTLTime To Live of the IP packet into the label and each transit ESR decrements the TTL in the label. If the value is set to 'false', the ESR ignores the IP packet TTL and writes value ‘225’ into the label.

bwProtect If the tunnel is configured with the bwProtect attribute, the value is true. True is represented by . If the value is set to 'true', bandwidth protection is enabled on an LSP. Enabling bandwidth protection ensures that an LSP is allocated fixed bandwidth. Each time this LSP is used for any service, the bandwidth allocated to that service is deducted from bandwidth reserved for the LSP. After the bandwidth is exhausted on the LSP, the ESR will indicate that the LSP has exhausted its resources. Default value for bwProtect is 'false'.
fRNodeProtect If the tunnel is configured with the fRNodeProtect attribute, the value is true. True is represented by . Setting value of fRNodeProtect to 'true' enables protection against the failure of a node on the LSP. Default value for fRNodeProtect is 'true'.
cspf If the tunnel is configured with the cspf attribute, the value is true. True is represented by .
adaptive If the tunnel is configured with the adaptive attribute, the value is true. True is represented by . When the value is set to 'true', adaptive enables make-before-break functionalityIt is a configuration in which a new connection path is established before the previous connection is opened to prevent an open circuit. for the P2MPPoint to Multipoint is a communications network commonly used for wireless and telephony networks. Point to Multipoint provides a path from a single location to multiple locations. LSP.
operFastReroute If the tunnel is configured with the operFastReroute attribute, the value is true. True is represented by . The value of operFastReroute specifies whether the fast-reroute is enabled or disabled for any operational LSP.
fRObject If the tunnel is configured with the fRObject attribute, the value is true. True is represented by . Value of fRObject specifies whether fast -reroute for LSPs using 'Facility BackupThis is a backup approach where a single backup is maintained for a set of LSPs. ' is signaled with or without the fast reroute object. The value of fRObject is ignored if fast-reroute is disabled for the LSP or if the LSP is using 'One-to-One BackupThis is a backup approach where a separate backup path is maintained for each LSP passing through a facility.'

Analysis Pane

Analysis Pane is not implemented for the Attributes tab.

Hops Tab

The TE Tunnel Form provides details about the selected TE Tunnel.

The Hops tab provides details of the intermediate routers of the selected tunnel. The hop is an intermediate router in the tunnel path.

Basic Attributes
Attribute Description
Hop #

The sequential number assigned to the segment of the tunnel. The segment of the tunnel is a part that connects two consecutive routers. For example, the hop is a part between the head router and the next intermediate router, or the intermediate router and the destination router. Each hop number represents each row in the form.
From-Node

The name of a node. The name is a fully-qualified hostname or an IP address. The segment of the hop starts from this node.

Outgoing-IfName

The name of an interface on the node. The segment of the hop starts from this interface. Possible values are:

  • No Data Available - Whenever an interface is not managed by NNMi or the MIB value is unknown or the interface is not discovered by NNMi, the value is No Data Available.  
  • Virtual Interface - Whenever an interface on the head node is not discovered, the value is Virtual Interface. This value is applicable only for the Cisco devices.

Click (the Open icon) to view details about the selected Outgoing-IfName.  
Outgoing-IfAddress

The IP address of an interface on the node. The segment of the hop starts from this interface.

To-Node

The name of a node. The name is a fully-qualified hostname or an IP address. The segment of the hop terminates at this node. Whenever the MIB reports the value as unknown or the node is not discovered by NNMi, the value is Unknown.
Incoming-IfName

The name of interface on the node. The segment of the hop terminates at this interface. When the MIB value is unknown or the interface is not discovered by NNMi, the value is Unknown.
Incoming-IfAddress

The IP address of interface on the node. The segment of the hop terminates at this interface. Whenever the MIB value is unknown or the interface is not discovered by NNMi, the value is Unknown.

Analysis Pane

Analysis Pane is not implemented for the Hops tab.

Status Tab

The TE Tunnel Form provides details about the selected TE Tunnel. You can use the Status tab to view the status summary the selected TE Tunnel.

Status Table
Attribute Description
Status

Overall status of the TE Tunnel. Possible values are :

Normal - If the status of the TE Tunnel is Up, the status of the TE Tunnel is Normal.

Critical - If the status of the TE Tunnel is Down, the status of the TE Tunnel is Critical.

Unknown - If there is no SNMP response for the selected node and the selected TE Tunnel is configured on this node, the status of the TE Tunnel is Unknown.
Status Last Modified Status Last Modified shows the date and time on which the status of the selected TE Tunnel was last set.
Status History
Attribute Description
Status

List of the last thirty status updates for the selected MPLS object. For more information, see NNMi Status tab.
Time Stamp Time when the status of the selected TE tunnel was last modified.

Analysis Pane

Analysis Pane is not implemented for the Status tab.

Conclusions Tab

The TE Tunnel Form provides details about the selected TE Tunnel. The Conclusions tab shows the results of the overall derived status. You can view a quick summary of the status and problem description for the selected TE Tunnel.

Basic Attributes
Attribute Description
Status

Overall status of the TE Tunnel. For information about the possible status values, see TE Tunnel: Status Tab.
Time Stamp The time when the status of the TE tunnel is last updated.
Conclusions

The conclusions are set by the Causal Engine after the status calculation. Possible conclusions are:

  • MplsTunnelDown
  • MplsTunnelUp
  • MplsTunnelUnknown
  • MPLSTETunnelReroute

Analysis Pane

Analysis Pane is not implemented for the Conclusions tab.

Incidents Tab 

The TE Tunnel Form provides details about the selected TE Tunnel. The Incidents tab is useful for obtaining a quick summary of the problem description of the selected TE Tunnel. 

Incidents Table 
Attributes Description
Incidents Attributes

The attributes listed in the incidents tab are same as available in NNMi Incidents form. Click (the Open icon) to view the details of the incident . The left pane shows the basic information such as Severity, Priority, Message, and so on. The right pane shows details of the incident such as name, family and so on.

For more information, see Viewing MPLS Incidents.

A node or an interface down in NNMi is correlated to Tunnel Down or Tunnel Reroute. If a node or an interface is down, the corresponding TE Tunnel will also generate a 'Reroute' or 'Down incidents '.

To view the correlation:

  1. Go to TE tunnel inventory.
  2. Select the TE Tunnel for which you want to view the correlation, and then click (the Open icon). The TE Tunnel form opens.
  3. Select the Incidents tab.
  4. Open the 'down' or 'Reroute' incident.
  5. Click the Correlated Children tab.

For more information on Correlated Children see, Incident Form:Correlated Children Tab and Correlation Rule Example in the NNMi Online Help for Operators.

Analysis Pane

Information shown in the Analysis Pane of Incidents is inherited from the Network Node Manager i-Software (NNMi). For more information, see About the Analysis Pane in NNMi Online Help.

Custom Attributes

The TE Tunnel form provides details about the selected TE Tunnel. Custom Attributes tab displays the set of name-value pairs of custom attributes associated with TE Tunnels. You can set Custom Attributes using the webservice calls.

Custom Attributes
Attribute Description
Name Attributes Name of the Custom Attribute defined in the web services.
Value Value assigned to the Custom Attribute in the web services.

Analysis Pane

Analysis Pane is not implemented for the Customs Attribute tab.

Registration Tab 

The TE Tunnel Form provides details about the selected TE Tunnel. 

Registration Table
Attributes Description
Create Time

Date and time on which the selected TE Tunnel was created.

Last Modified Date and time of when the selected TE Tunnel was last modified.

Analysis Pane

Analysis Pane is not implemented for the Registration tab.

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