How do I create an LSP?

Steps
 

From the Path Simulation, LSPs view, click on Create LSP png5.png. The Create LSP form opens with the Identification panel displayed.


Configure the required parameters:

Parameter

Description

Path Name

The name of the PCE-initiated LSP

Source

Specifies the source node for the path

Destination

Specifies the destination node for the path

Path Type

Specifies the type of path, SR or RSVP

Administration

Specifies the desired administrative state

Template ID

Specifies the ID of the template to be applied

Objective

Specifies the primary goal when identifying path resources

Bandwidth (Mbps)

Specifies the bandwidth required for the LSP

Setup Priority

Specifies a diversity-grouped LSP's priority access to the shortest path. Value 0 is the highest priority.

Assign BSID

Specifies whether or not a BSID will be assigned to the LSP


In the Constraints panel, configure the required parameters:

Parameter

Description

Max Hops (Span)

Specifies the maximum number of hops to consider

MSD

Specifies the maximum SID depth to consider

Max Cost

Specifies the maximum cost to consider

Max TE Metric

Specifies the maximum TE metric to consider

Max Latency

Specifies the maximum latency to consider

Include Any Bit Pos

Specifies any bit between 0 and 31 to include

Exclude Any Bit Pos

Specifies any bit between 0 and 31 to exclude

Include All Bit Pos

Specified all bits between 0 and 31 to include


In the Association Groups panel click + ADD. The Create Association Groups form opens. Configure the required parameters:

Parameter

Description

Association Type

Specifies the association type, Policy or Disjoint

Association Group ID

Specifies the association group identifier. When the Association Type is set to 'Policy', the Association Group ID is used to perform a lookup against a Path Profile definition. An ID is limited to one per association type. If this is exceeded, an error will occur and the LSP will become operationally down.

Association Source IP Address

Specifies the IP address of the association source. Both IPv4 and IPv6 addresses are supported.

Diversity

When the association type is 'Disjoint', specifies the diversity criteria

Note: The Association Group ID and Association Source IP Address parameters combine to form a unique key that is particularly useful for enforcing diversity between two nodes with same configured source.

Click ADD. The Create Association Group form closes.


In the Path Profiles panel, configure the required parameters:

Parameter

Description

Profile ID

Specifies the identifier of the path profile policy to apply

Group ID

Specifies the identifier of the path profile group to which this LSP belongs


Click CREATE. The LSP is created.


From the LSPs view, a variety of actions can be performed on individual LSPs by clicking More png4.png and choosing the desired action from the contextual menu. These actions include show on map, re-signal, optimize, edit, delete, and configure path profile override. See How do I apply a path profile override? for more information.

Note: When an LSP is re-signaled, a search is conducted for the constrained shortest path, and the LSP is rerouted to a new, best path (if one is found). The best path is determined by the LSP's objective. When all LSPs are re-signaled, they are rerouted one by one. Therefore, each previous reroute affects the viability of future reroutes. LSPs can be re-signaled on-demand at any time, though NSP periodically re-signals LSPs at set intervals.

Note: When LSPs are optimized, a set of LSPs are analyzed simultaneously, and paths are routed with the goal of producing a network with minimal bandwidth utilization on each link. Because multiple LSPs are optimized at once, there is a significant computation cost and impact to the network, however, the paths are routed with awareness and consideration of each other.

End of steps

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