GMPLS UNI for Packet and Optical Integration

GMPLS UNI

Generalized Multiprotocol Label Switching User Network Interface (GMPLS UNI) is a control plane technology that

  • enables packet networks to interact directly with the optical transport control plane,

  • coordinates packet network resource requirements with the optical transport network, and

  • uses open standards to optimize network resource use across packet and optical domains.

Packet and optical integration

As cloud services become central to business operations, packet and optical network services must evolve to be more efficient and dynamic. Closer integration of packet and optical networks is critical, especially in the control plane. GMPLS UNI is a key enabling technology that supports this integration.

Channel spacing

The Dense Wavelength Division Multiplexing (DWDM) grid in the C-band (1530–1569 nm) of the optical spectrum is divided into multiple channels so that each channel can carry traffic independently. The number of channels available from the DWDM grid depends on the channel spacing: lower channel spacing yields more channels, and higher channel spacing yields fewer channels.

GMPLS supports two types of channel spacing.

  • Fixed grid channel spacing: The channel spacing is fixed at 50 GHz and supports 100 Gbps and 200 Gbps traffic.

  • Flexible grid channel spacing: The channel spacing is 6.25 GHz and supports all data rates. The channels are divided into finer slices so that the channel width can be defined as a multiple of these slices to fit the data bandwidth requirement.

    NCS 1004 supports only flexible grid channel spacing.

    The neighbor flexi-grid-capable command enables GMPLS UNI flexible grid channel spacing. This command is run during the LMP configuration.

GMPLS UNI tunnels

GMPLS UNI tunnels are end-to-end optical paths between two NCS 1004 nodes that

  • connects two nodes,

  • efficiently uses the Dense Wavelength Division Multiplexing (DWDM) grid with minimal wastage of spectral bandwidth, and

  • carries mixed bit-rate or mixed modulation data in a flexible grid using different channel widths.

To address common packet and optical network requirements, you create a tunnel between two NCS 1004 nodes to carry traffic by using GMPLS UNI technology, as shown in the following figure.

Figure 1. GMPLS UNI reference model
GMPLS UNI reference model

UNI-C is the client, packet, or router node, for example, an NCS 1004 node. UNI-N is the network or optical node, for example, an NCS 2000 node.

A Link Management Protocol (LMP) link is created to establish connectivity between an NCS 2000 node and an NCS 1004 node. The tunnel is then created between the trunk interfaces of the source and destination NCS 1004 nodes to carry traffic. When the tunnel is created between NCS 1004 nodes, a circuit is internally created between the NCS 2000 nodes to perform path computation, restoration, and reversion functions.

The tunnel can be created between the source and destination NCS 1004 nodes without involving NCS 2000 nodes in the middle. However, restoration and reversion capabilities are provided only by NCS 2000 nodes that use GMPLS UNI.

Licensing and configuration prerequisites for GMPLS UNI tunnels

Ensure that all necessary software packages, licenses, network reachability, and operational port conditions are met on NCS 1002, NCS 1004, and NCS 2000 nodes before creating a tunnel using Generalized Multiprotocol Label Switching User Network Interface (GMPLS UNI), enabling successful tunnel deployment and operation.

Before you create a tunnel by using GMPLS UNI, ensure that the following prerequisites are met.

  • The NCS 1004 node has both the MPLS and MPLS-TE packages installed. The package names are ncs1004-mpls and ncs1004-mpls-te-rsvp .

  • The NCS 2000 node has a valid license for ROADM and Wavelength Switched Optical Network (WSON) support.

  • The management IP addresses of the NCS 1004 and NCS 2000 nodes are reachable.

  • The administrative state of the trunk port of the optics controller on the NCS 1004 node is not in the shutdown state.

Limitations for a GMPLS UNI tunnel

This reference enables you to accurately identify the supported trunk port types and software release restrictions for GMPLS UNI tunnels on NCS 1002 nodes, ensuring compliant and optimized tunnel configuration.

The following limitations apply when you create a GMPLS UNI tunnel.

Configuration workflow for a GMPLS UNI tunnel

Summary

Creating a GMPLS UNI tunnel involves the following actors.

  • NCS 2000 node (UNI-N): Provides the optical transport network and runs the Link Management Protocol (LMP) endpoint, alien wavelength, and ifindex provisioning.

  • NCS 1004 node (UNI-C): Acts as the client router that runs LMP, Resource Reservation Protocol (RSVP), and the MPLS traffic-engineering tunnel toward the destination node.

You complete the NCS 2000 node configuration first, then configure the source and destination NCS 1004 nodes to bring up the tunnel.

Workflow

These stages describe the GMPLS UNI tunnel configuration workflow.

  1. On the NCS 2000 node, perform the following configurations:
  2. On the NCS 1004 node, perform the following configurations:

Result

The GMPLS UNI tunnel is established between the source and destination NCS 1004 nodes, with the optical path computed by the NCS 2000 nodes.

Configure an LMP link and Alien Wavelength on an NCS 2000 node using CTC

Establish connectivity and enable advanced opUse this task to set up a static LMP link between a Cisco NCS 2000 node and either an NCS 1004 node. The CTC LMP creation wizard enables you to select source and destination endpoints, configure optical parameters, and set alien wavelength options. tical parameters and alien wavelength configurations for signaled numbered circuits between Cisco optical network nodes.

Use this task to set up a static LMP link between a Cisco NCS 2000 node and either an NCS 1002 or NCS 1004 node. The CTC LMP creation wizard enables you to select source and destination endpoints, configure optical parameters, and set alien wavelength options.

Procedure

Step 1

From the View menu, choose Go to Network View.

Step 2

Click the Provisioning > LMP tabs.

Step 3

Click Create.

The LMP Creation window appears.

Step 4

Click Signaled in the Router Not Managed by CTC area.

A wizard appears with the following options:

LMP Origination, LMP Termination, Optical Parameters, and Alien Wavelength

Step 5

In the LMP Origination screen of the wizard, provision these parameters:

  • From the Originating Node drop-down list, choose the source node of the LMP.

    If the source node is Cisco NCS 1004, the destination node must be MSTP, and the other way round.

  • From the Local Interfaces drop-down list, choose an available interface.

  • Choose the Type, Shelf, Slot, and Port for Ingress Port Selection and Egress Port Selection.

  • Choose Numbered interface.

  • Enter the IP address of the source node in the Interface IP field.

  • Set the mode of revertive restoration to either UNI-C or UNI-N. If the mode is set to UNI-C, the reversion of the circuit from the restored path to the original path is initiated by the UNI client that is connected to NCS 1004. If the mode is set to UNI-N, the reversion of the circuit is initiated by the DWDM network and can either be a manual revert or an auto revert.

  • Enter the RSVP signaling interval and RSVP signaling missed values in the respective fields.

  • Click Next.

Step 6

In the LMP Termination screen of the wizard, provision these parameters:

  • From the Terminating Node drop-down list, choose the destination node of the LMP; for example, MSTP node.

  • From the Rx Port Selection area, perform the following.

    • Choose the card type from the Type drop-down list.

    • Choose a shelf from the Shelf drop-down list.

    • Choose a source slot from the Slot drop-down list

    • Choose a port from the Port drop-down list.

  • From the Tx Port Selection area, perform the following.

    • Choose the card type from the Type drop-down list.

    • Choose a shelf from the Shelf drop-down list.

    • Choose a destination slot from the Slot drop-down list.

    • Choose a port from the Port drop-down list

  • Enter the IP address of the destination node in the Interface IP field.

  • Set the mode of revertive restoration to either UNI-C or UNI-N. If the mode is set to UNI-C, the reversion of the circuit from the restored path to the original path is initiated by the UNI client that is connected. If the mode is set to UNI-N, the reversion of the circuit is initiated by the DWDM network and can be either a manual revert or an auto revert.

  • Enter the remote Ifindex of NCS 1004 node (in decimals) in the Remote If Index field.

  • Click Next.

Step 7

In the Optical Parameters screen of the wizard, provision these parameters:

  • Allow Regeneration—When checked, the computed path traverses through the regeneration site only if the optical validation is not satisfied. You can regenerate a circuit that is created from the UNI interface. If a transparent path is feasible, the regenerator is not used.

  • UNI State—Choose Enable or Disable from the UNI State drop-down list.

    The Enable state is used to configure the UNI interface for the circuits to pass through, between the router and the DWDM node. In the Disable state, the interface is configured but not active, and so the circuit activation is rejected. When the status is changed from Enable to Disable, all active circuits on the interface are deleted.

  • Description—Enter the description of the UNI interface. The description can be up to 256 characters.

  • Label—Enter an alphanumeric string. This label is a unique circuit identifier.

  • Validation—Sets the optical validation mode.

    • Full—The circuit is created when the circuit validation result is greater than or equal to the acceptance threshold value.

    • None—The circuit is created without considering the acceptance threshold value. The Opt Valid column in the Circuits tab displays the value as Not Valid.

    • Inherited—The restoration circuit inherits the validation and acceptance threshold values from the primary circuit.

  • Acceptance threshold—Sets the acceptance threshold value for the GMPLS circuit. The circuit is created if the actual acceptance threshold value is greater than, or equal to, the value set in this field.

    • Green—Indicates that the channel failure risk is 0%.

    • Yellow—Indicates that the channel failure risk is between 0% and 16%.

    • Orange—Indicates that the channel failure risk is between 16% and 50%.

    • Red—Indicates that the channel failure risk is greater that 50%.

  • Restoration—Check this check box to enable the restoration of the GMPLS circuits on the UNI interface.

  • Revert—Check this check box to enable the revert of the GMPLS circuits on the UNI interface.

  • Auto Revert—Click this radio button to automatically revert the circuit from the restored path to the original path after the failure is fixed, WSON alarms are acknowledged, and the soak time expires.

  • Manual Revert—Click this radio button to manually revert the circuit from the restored path to the original path after the failure is fixed, the WSON alarms are acknowledged, and the soak time expires.

  • Soak Time—Enter the time (in hours, minutes, and seconds) in the Soak Time field that the circuit on the restored path waits before moving to the original path after the failure is fixed. The circuit reverts to the original path after the soak time expires. The soak time must be set only if both the Restoration and Revert check boxes are checked.

Step 8

Click Next.

Step 9

In the Alien wavelength screen of the wizard, provision these parameters.

  • From the Alien Wavelength drop-down list, choose the alien wavelength class.

  • From the Trunk Selection drop-down list, choose 100G, 200G, or 250G.

  • From the FEC drop-down list, choose a valid value for forward error correction (FEC) mode. If an invalid FEC value is chosen, LMP link is created; however, the circuit creation fails.

  • Click Finish to create an LMP link.

The LMP link with specified optical parameters and alien wavelength settings is created and listed in CTC, ready for signaled numbered circuit provisioning.

Retrieve ifindex from the NCS 2000 node

You can retrieve the ifindex value of all the LMP ports of the NCS 2000 node by using the Cisco Transport Controller (CTC) or the TL1 interface. Use this value in the neighbor interface-id unnumbered command during the LMP configuration on the NCS 1004 node.

Procedure

Retrieve the ifindex by using either CTC or TL1.

  • To use CTC, click the Provisioning > LMP tab and read the ifindex value, in decimal format, under the Originating Interface Index column.
  • To use TL1, log in to the TL1 interface and run the rtrv-unicfg ::all:1; command. The command returns the ifindex of all the LMP ports of the NCS 2000 node in hexadecimal format. Convert the value to decimal format before you use it as the remote ifindex of the NCS 1004 node.

The following sample TL1 output shows the ifindex of two LMP ports.

Example:
PSLINE-81-1-9-RX:PSLINE-81-1-9-TX,10.77.142.92,3.3.3.4,3.3.3.3,0.0.0.0,VALMODE=NONE,ADMINSTATE=UP,
RESTTYPE=REVERT,USPWROFS=0.0,
DSPWROFS=0.0,ALLOWREGEN=NO,UNICTRLMODE=CLIENT,REVERTMODE=MANUAL,SOAK=00-01-00,
RESTVALMODE=NONE,TERMINTFDX=0,ORIGINTFIDX=7f000d12,NUMBERED=TRUE,UNIMODE=GMPLS

PSLINE-81-1-10-RX:PSLINE-81-1-10-TX,10.77.142.92,4.4.4.4,4.4.4.3,0.0.0.0,VALMODE=NONE,ADMINSTATE=UP,
RESTTYPE=REVERT,USPWROFS=0.0,DSPWROFS=0.0,ALLOWREGEN=NO,UNICTRLMODE=CLIENT,
REVERTMODE=MANUAL,SOAK=00-01-00,RESTVALMODE=NONE,TERMINTFDX=0,
ORIGINTFIDX=7f000d14,NUMBERED=TRUE,UNIMODE=GMPLS

In the sample output, the ifindex of port 81-1-9 is 7f000d12 in hexadecimal and 2130709778 in decimal. The ifindex of port 81-1-10 is 7f000d14 in hexadecimal and 2130709780 in decimal.

Configure RSVP on the NCS 1004 node

You configure the Resource Reservation Protocol (RSVP) with appropriate signaling timers on the source and destination NCS 1004 nodes of the tunnel.

Procedure

Step 1

Enter the global configuration mode and the RSVP configuration mode.

Example:

RP/0/RP0/CPU0:ios#configure
RP/0/RP0/CPU0:ios(config)#rsvp

Step 2

Specify the optics controller.

Example:

RP/0/RP0/CPU0:ios(config-rsvp)#controller optics 0/0/0/6

Step 3

Set the out-of-band signaling refresh interval, in seconds.

Example:

RP/0/RP0/CPU0:ios(config-rsvp-cntl)#signalling refresh out-of-band interval 3600

Step 4

Set the maximum number of missed out-of-band signaling refreshes that are allowed before the session is removed, and commit.

Example:

RP/0/RP0/CPU0:ios(config-rsvp-cntl)#signalling refresh out-of-band missed 24
RP/0/RP0/CPU0:ios(config-rsvp-cntl)#commit

signalling refresh out-of-band missed mis-count

What to do next

The following sample shows the RSVP configuration on the source NCS 1004 node.

GMPLS UNI tunnel, RSVP, and LMP configuration commands and sample outputs

Use the show commands in the following table to verify the GMPLS UNI tunnel, RSVP, and LMP configuration.

Table 1. Show commands

Show command

Description

show mpls traffic-eng link-management optical-uni controller optics

Displays detailed GMPLS information of a specific optics controller.

show mpls traffic-eng link-management optical-uni

Displays detailed GMPLS information of all the optics controllers.

show mpls traffic-eng tunnels

Displays information about tunnels.

show mpls traffic-eng link-management optical-uni tabular

Displays detailed GMPLS information of all the optics controllers in tabular format.

show mpls traffic-eng tunnels tabular

Displays information about all the tunnels in tabular format.

show lmp gmpls optical-uni

Verifies the LMP configuration and state.

show rsvp neighbors

Displays information about RSVP neighbors.

Sample outputs

This sample out of the commnad show mpls traffic-eng link-management optical-uni controller optics command displays detailed GMPLS information of a specific optics controller. 

Mon Jul  1 20:05:27.209 IST
Optical interface: Optics0/0/0/0
  Overview:
    IM state: Up
    Child interface: : IM state Unknown
    OLM/LMP state: Up
    Optical tunnel state: up
  Connection:
    Tunnel role: Tail
    Tunnel-id: 15, LSP-id 3, Extended tunnel-id 10.105.57.100
    Tunnel source: 10.105.57.100, destination: 11.1.1.1
    Optical router-ids: Local: 10.105.57.101, Remote: 10.127.60.48
    Label source: UNI-N
    Upstream label:
      Optical label:
      Grid                : DWDM
      Channel spacing     : 6.25 GHz
      Identifier          : 0
      Channel Number      : -277
    Downstream label:
      Optical label:
      Grid                : DWDM
      Channel spacing     : 6.25 GHz
      Identifier          : 0
      Channel Number      : -277
    SRLG discovery: Disabled
    SRLG announcement: None
    Switching Type: lsc
    MTU: 9212
  Admission Control:
    Upstream: Admitted (LSP ID: 3)
    Downstream: Admitted (LSP ID: 3)
  OLM/LMP adjacency information:
    Adjacency status: Up
    Local:
      node ID: 10.105.57.101
      link interface ID: 10
      link ID: 11.1.1.1
    Neighbor:
      node ID: 10.127.60.48 (VEGA2K-Site-3_48)
      link interface ID: 2130706976
      link ID: 10.1.1.1
      IPCC: Routed to 10.127.60.48
  Optical capabilities:
    Controller type: DWDM
    Channel spacing: 6.25 GHz
    Default channel: 0
    784 supported channels:
      -303, -302, -301, -300, -299, -298, -297, -296
      -295, -294, -293, -292, -291, -290, -289, -288
      -287, -286, -285, -284, -283, -282, -281, -280
      -279, -278, -277, -276, -275, -274, -273, -272
      -271, -270, -269, -268, -267, -266, -265, -264
      -263, -262, -261, -260, -259, -258, -257, -256
      -255, -254, -253, -252, -251, -250, -249, -248
      -247, -246, -245, -244, -243, -242, -241, -240
      -239, -238, -237, -236, -235, -234, -233, -232
      -231, -230, -229, -228, -227, -226, -225, -224
      -223, -222, -221, -220, -219, -218, -217, -216
      -215, -214, -213, -212, -211, -210, -209, -208
      -207, -206, -205, -204, -203, -202, -201, -200
      -199, -198, -197, -196, -195, -194, -193, -192
      -191, -190, -189, -188, -187, -186, -185, -184
      -183, -182, -181, -180, -179, -178, -177, -176
      -175, -174, -173, -172, -171, -170, -169, -168
      -167, -166, -165, -164, -163, -162, -161, -160
      -159, -158, -157, -156, -155, -154, -153, -152
      -151, -150, -149, -148, -147, -146, -145, -144
      -143, -142, -141, -140, -139, -138, -137, -136
      -135, -134, -133, -132, -131, -130, -129, -128
      -127, -126, -125, -124, -123, -122, -121, -120
      -119, -118, -117, -116, -115, -114, -113, -112
      -111, -110, -109, -108, -107, -106, -105, -104
      -103, -102, -101, -100, -99, -98, -97, -96
      -95, -94, -93, -92, -91, -90, -89, -88
      -87, -86, -85, -84, -83, -82, -81, -80
      -79, -78, -77, -76, -75, -74, -73, -72
      -71, -70, -69, -68, -67, -66, -65, -64
      -63, -62, -61, -60, -59, -58, -57, -56
      -55, -54, -53, -52, -51, -50, -49, -48
      -47, -46, -45, -44, -43, -42, -41, -40
      -39, -38, -37, -36, -35, -34, -33, -32
      -31, -30, -29, -28, -27, -26, -25, -24
      -23, -22, -21, -20, -19, -18, -17, -16
      -15, -14, -13, -12, -11, -10, -9, -8
      -7, -6, -5, -4, -3, -2, -1, 0
      1, 2, 3, 4, 5, 6, 7, 8
      9, 10, 11, 12, 13, 14, 15, 16
      17, 18, 19, 20, 21, 22, 23, 24
      25, 26, 27, 28, 29, 30, 31, 32
      33, 34, 35, 36, 37, 38, 39, 40
      41, 42, 43, 44, 45, 46, 47, 48
      49, 50, 51, 52, 53, 54, 55, 56
      57, 58, 59, 60, 61, 62, 63, 64
      65, 66, 67, 68, 69, 70, 71, 72
      73, 74, 75, 76, 77, 78, 79, 80
      81, 82, 83, 84, 85, 86, 87, 88
      89, 90, 91, 92, 93, 94, 95, 96
      97, 98, 99, 100, 101, 102, 103, 104
      105, 106, 107, 108, 109, 110, 111, 112
      113, 114, 115, 116, 117, 118, 119, 120
      121, 122, 123, 124, 125, 126, 127, 128
      129, 130, 131, 132, 133, 134, 135, 136
      137, 138, 139, 140, 141, 142, 143, 144
      145, 146, 147, 148, 149, 150, 151, 152
      153, 154, 155, 156, 157, 158, 159, 160
      161, 162, 163, 164, 165, 166, 167, 168
      169, 170, 171, 172, 173, 174, 175, 176
      177, 178, 179, 180, 181, 182, 183, 184
      185, 186, 187, 188, 189, 190, 191, 192
      193, 194, 195, 196, 197, 198, 199, 200
      201, 202, 203, 204, 205, 206, 207, 208
      209, 210, 211, 212, 213, 214, 215, 216
      217, 218, 219, 220, 221, 222, 223, 224
      225, 226, 227, 228, 229, 230, 231, 232
      233, 234, 235, 236, 237, 238, 239, 240
      241, 242, 243, 244, 245, 246, 247, 248
      249, 250, 251, 252, 253, 254, 255, 256
      257, 258, 259, 260, 261, 262, 263, 264
      265, 266, 267, 268, 269, 270, 271, 272
      273, 274, 275, 276, 277, 278, 279, 280
      281, 282, 283, 284, 285, 286, 287, 288
      289, 290, 291, 292, 293, 294, 295, 296
      297, 298, 299, 300, 301, 302, 303, 304
      305, 306, 307, 308, 309, 310, 311, 312
      313, 314, 315, 316, 317, 318, 319, 320
      321, 322, 323, 324, 325, 326, 327, 328
      329, 330, 331, 332, 333, 334, 335, 336
      337, 338, 339, 340, 341, 342, 343, 344
      345, 346, 347, 348, 349, 350, 351, 352
      353, 354, 355, 356, 357, 358, 359, 360
      361, 362, 363, 364, 365, 366, 367, 368
      369, 370, 371, 372, 373, 374, 375, 376
      377, 378, 379, 380, 381, 382, 383, 384
      385, 386, 387, 388, 389, 390, 391, 392
      393, 394, 395, 396, 397, 398, 399, 400
      401, 402, 403, 404, 405, 406, 407, 408
      409, 410, 411, 412, 413, 414, 415, 416
      417, 418, 419, 420, 421, 422, 423, 424
      425, 426, 427, 428, 429, 430, 431, 432
      433, 434, 435, 436, 437, 438, 439, 440
      441, 442, 443, 444, 445, 446, 447, 448
      449, 450, 451, 452, 453, 454, 455, 456
      457, 458, 459, 460, 461, 462, 463, 464
      465, 466, 467, 468, 469, 470, 471, 472
      473, 474, 475, 476, 477, 478, 479, 480
    Controller SRLGs
      None

show mpls traffic-eng link-management optical-uni

Displays detailed GMPLS information of all the optics controllers. MPLS tunnels are not created when the optics controller is in the shutdown state. The state is shown as "Admin down". Run the no shutdown command under the optics controller to initiate the tunnel creation. 

Mon Jul  1 20:00:42.108 IST

System Information:
  Optical Links Count: 1 (Maximum Links Supported 100)

Optical interface: Optics0/0/0/0
  Overview:
    IM state: Up
    Child interface: : IM state Unknown
    OLM/LMP state: Up
    Optical tunnel state: up
  Connection:
    Tunnel role: Tail
    Tunnel-id: 15, LSP-id 3, Extended tunnel-id 10.105.57.100
    Tunnel source: 10.105.57.100, destination: 11.1.1.1
    Optical router-ids: Local: 10.105.57.101, Remote: 10.127.60.48
    Label source: UNI-N
    Upstream label:
      Optical label:
      Grid                : DWDM
      Channel spacing     : 6.25 GHz
      Identifier          : 0
      Channel Number      : -277
    Downstream label:
      Optical label:
      Grid                : DWDM
      Channel spacing     : 6.25 GHz
      Identifier          : 0
      Channel Number      : -277
    SRLG discovery: Disabled
    SRLG announcement: None
    Switching Type: lsc
    MTU: 9212
  Admission Control:
    Upstream: Admitted (LSP ID: 3)
    Downstream: Admitted (LSP ID: 3)
  OLM/LMP adjacency information:
    Adjacency status: Up
    Local:
      node ID: 10.105.57.101
      link interface ID: 10
      link ID: 11.1.1.1
    Neighbor:
      node ID: 10.127.60.48 (VEGA2K-Site-3_48)
      link interface ID: 2130706976
      link ID: 10.1.1.1
      IPCC: Routed to 10.127.60.48
  Optical capabilities:
    Controller type: DWDM
    Channel spacing: 6.25 GHz
    Default channel: 0
    784 supported channels:
      -303, -302, -301, -300, -299, -298, -297, -296
      -295, -294, -293, -292, -291, -290, -289, -288
      -287, -286, -285, -284, -283, -282, -281, -280
      -279, -278, -277, -276, -275, -274, -273, -272
      -271, -270, -269, -268, -267, -266, -265, -264
      -263, -262, -261, -260, -259, -258, -257, -256
      -255, -254, -253, -252, -251, -250, -249, -248
      -247, -246, -245, -244, -243, -242, -241, -240
      -239, -238, -237, -236, -235, -234, -233, -232
      -231, -230, -229, -228, -227, -226, -225, -224
      -223, -222, -221, -220, -219, -218, -217, -216
      -215, -214, -213, -212, -211, -210, -209, -208
      -207, -206, -205, -204, -203, -202, -201, -200
      -199, -198, -197, -196, -195, -194, -193, -192
      -191, -190, -189, -188, -187, -186, -185, -184
      -183, -182, -181, -180, -179, -178, -177, -176
      -175, -174, -173, -172, -171, -170, -169, -168
      -167, -166, -165, -164, -163, -162, -161, -160
      -159, -158, -157, -156, -155, -154, -153, -152
      -151, -150, -149, -148, -147, -146, -145, -144
      -143, -142, -141, -140, -139, -138, -137, -136
      -135, -134, -133, -132, -131, -130, -129, -128
      -127, -126, -125, -124, -123, -122, -121, -120
      -119, -118, -117, -116, -115, -114, -113, -112
      -111, -110, -109, -108, -107, -106, -105, -104
      -103, -102, -101, -100, -99, -98, -97, -96
      -95, -94, -93, -92, -91, -90, -89, -88
      -87, -86, -85, -84, -83, -82, -81, -80
      -79, -78, -77, -76, -75, -74, -73, -72
      -71, -70, -69, -68, -67, -66, -65, -64
      -63, -62, -61, -60, -59, -58, -57, -56
      -55, -54, -53, -52, -51, -50, -49, -48
      -47, -46, -45, -44, -43, -42, -41, -40
      -39, -38, -37, -36, -35, -34, -33, -32
      -31, -30, -29, -28, -27, -26, -25, -24
      -23, -22, -21, -20, -19, -18, -17, -16
      -15, -14, -13, -12, -11, -10, -9, -8
      -7, -6, -5, -4, -3, -2, -1, 0
      1, 2, 3, 4, 5, 6, 7, 8
      9, 10, 11, 12, 13, 14, 15, 16
      17, 18, 19, 20, 21, 22, 23, 24
      25, 26, 27, 28, 29, 30, 31, 32
      33, 34, 35, 36, 37, 38, 39, 40
      41, 42, 43, 44, 45, 46, 47, 48
      49, 50, 51, 52, 53, 54, 55, 56
      57, 58, 59, 60, 61, 62, 63, 64
      65, 66, 67, 68, 69, 70, 71, 72
      73, 74, 75, 76, 77, 78, 79, 80
      81, 82, 83, 84, 85, 86, 87, 88
      89, 90, 91, 92, 93, 94, 95, 96
      97, 98, 99, 100, 101, 102, 103, 104
      105, 106, 107, 108, 109, 110, 111, 112
      113, 114, 115, 116, 117, 118, 119, 120
      121, 122, 123, 124, 125, 126, 127, 128
      129, 130, 131, 132, 133, 134, 135, 136
      137, 138, 139, 140, 141, 142, 143, 144
      145, 146, 147, 148, 149, 150, 151, 152
      153, 154, 155, 156, 157, 158, 159, 160
      161, 162, 163, 164, 165, 166, 167, 168
      169, 170, 171, 172, 173, 174, 175, 176
      177, 178, 179, 180, 181, 182, 183, 184
      185, 186, 187, 188, 189, 190, 191, 192
      193, 194, 195, 196, 197, 198, 199, 200
      201, 202, 203, 204, 205, 206, 207, 208
      209, 210, 211, 212, 213, 214, 215, 216
      217, 218, 219, 220, 221, 222, 223, 224
      225, 226, 227, 228, 229, 230, 231, 232
      233, 234, 235, 236, 237, 238, 239, 240
      241, 242, 243, 244, 245, 246, 247, 248
      249, 250, 251, 252, 253, 254, 255, 256
      257, 258, 259, 260, 261, 262, 263, 264
      265, 266, 267, 268, 269, 270, 271, 272
      273, 274, 275, 276, 277, 278, 279, 280
      281, 282, 283, 284, 285, 286, 287, 288
      289, 290, 291, 292, 293, 294, 295, 296
      297, 298, 299, 300, 301, 302, 303, 304
      305, 306, 307, 308, 309, 310, 311, 312
      313, 314, 315, 316, 317, 318, 319, 320
      321, 322, 323, 324, 325, 326, 327, 328
      329, 330, 331, 332, 333, 334, 335, 336
      337, 338, 339, 340, 341, 342, 343, 344
      345, 346, 347, 348, 349, 350, 351, 352
      353, 354, 355, 356, 357, 358, 359, 360
      361, 362, 363, 364, 365, 366, 367, 368
      369, 370, 371, 372, 373, 374, 375, 376
      377, 378, 379, 380, 381, 382, 383, 384
      385, 386, 387, 388, 389, 390, 391, 392
      393, 394, 395, 396, 397, 398, 399, 400
      401, 402, 403, 404, 405, 406, 407, 408
      409, 410, 411, 412, 413, 414, 415, 416
      417, 418, 419, 420, 421, 422, 423, 424
      425, 426, 427, 428, 429, 430, 431, 432
      433, 434, 435, 436, 437, 438, 439, 440
      441, 442, 443, 444, 445, 446, 447, 448
      449, 450, 451, 452, 453, 454, 455, 456
      457, 458, 459, 460, 461, 462, 463, 464
      465, 466, 467, 468, 469, 470, 471, 472
      473, 474, 475, 476, 477, 478, 479, 480
    Controller SRLGs
      None

show mpls traffic-eng link-management optical-uni tabular

Displays detailed GMPLS information of all the optics controllers in tabular format.

Mon Jul  1 15:10:50.472 IST

System Information:
  Optical Links Count: 4 (Maximum Links Supported 100)

                  State          LMP          GMPLS tunnel
Interface      Admin  Oper    adjacency    role  tun-id  state
--------------------------------------------------------------
     Op0/0/0/0    up    up        up       Tail      15     up
     Op0/0/0/1    up    up        up       Tail      16     up
     Op0/1/0/0    up    up        up       Tail      17     up
     Op0/1/0/1    up    up        up       Tail      18     up

show mpls traffic-eng tunnels

Displays information about tunnels.

Mon Jul  1 15:03:58.490 IST


LSP Tunnel 10.105.57.100 15 [5] is signalled, Signaling State: up
  Tunnel Name: ckt0/0/0/0 Tunnel Role: Tail
  Upstream label:
    Optical label:
    Grid                : DWDM
    Channel spacing     : 6.25 GHz
    Identifier          : 0
    Channel Number      : -277
  Downstream label:
    Optical label:
    Grid                : DWDM
    Channel spacing     : 6.25 GHz
    Identifier          : 0
    Channel Number      : -277
  Signalling Info:
    Src 10.105.57.100 Dst 11.1.1.1, Tun ID 15, Tun Inst 5, Ext ID 10.105.57.100
    Router-IDs: upstream   10.127.60.48
                local      10.105.57.101
    Priority:  7  7
    SRLGs: not collected
    Path Info:
      Incoming Address: 10.1.1.1
      Incoming:
      Explicit Route:
        No ERO

      Route Exclusions:
        No XRO
      Record Route: Disabled
      Tspec: avg rate=4294967033 kbits, burst=1000 bytes, peak rate=4294967033 kbits
      Session Attributes: Local Prot: Not Set, Node Prot: Not Set, BW Prot: Not Set
    Resv Info: None
      Record Route: Disabled
      Fspec: avg rate=4294967033 kbits, burst=1000 bytes, peak rate=4294967033 kbits
Displayed 0 (of 0) heads, 0 (of 0) midpoints, 1 (of 1) tails
Displayed 0 up, 0 down, 0 recovering, 0 recovered heads

show rsvp neighbors

Displays information about RSVP neighbors.

Mon Jul  1 14:58:48.888 IST
Global Neighbor: 10.127.60.48
  Interface Neighbor   Interface
  -------------------- ------------
  10.127.60.48         MgmtEth0/RP0/CPU0/0

show lmp gmpls optical-uni

Verifies the LMP configuration and state.

Mon Jul  1 14:55:35.492 IST

GMPLS Optical-UNI LMP Router ID: 10.105.57.101

LMP Neighbor
Name: ncs1k, IP: 10.127.60.48, Owner: GMPLS Optical-UNI
LMP: Disabled
 IPCC ID: 1, State Up
 LMP UDP port: 701
  Known via             : Configuration
  Type                  : Routed
  Destination IP        : 10.127.60.48
  Source IP             : 10.105.57.101

    Interface I/F     |  Lcl Interface ID | Lcl Link    ID | Interface LMP state
----------------------+-------------------+----------------+-----------------------
         Optics0/1/0/1                   7         11.5.5.5                   Up
         Optics0/1/0/0                   6         11.4.4.4                   Up
         Optics0/0/0/1                  11         11.3.3.3                   Up
         Optics0/0/0/0                  10         11.1.1.1                   Up

GMPLS UNI tunnel troubleshooting commands and resolutions

Recommended show commands for troubleshooting GMPLS UNI tunnels

Collect and analyze the output of the following commands for any software issues on the GMPLS UNI tunnel.

  • show tech-support mpls traffic-eng file filename

  • show tech-support mpls rsvp file filename

  • show lmp clients

  • show rsvp neighbors

  • show mpls traffic-eng link-management optical-uni controller optics Rack/Slot/Instance/Port

  • show mpls traffic-eng tunnels tunnel-id

Table 2. GMPLS UNI tunnel issues and recommended resolutions

Problem

Solution

When the NCS 2000 node cannot route the Dense Wavelength Division Multiplexing (DWDM) wavelength to the destination, it displays a generic error message: "No Route to destination".

As a super user, collect and analyze the diagnostic information by entering the following address in the browser:

http://ip-address-of-head-node/diagnostics/wson