Procedure 9-8.1: Create TMPLS protection
Overview
Use this procedure and the Web GUI or ent-ffp-tmpls TL1 command to create TMPLS protection.
The following types of facility protection group can be provisioned with (T)MPLS tunnels as protection group members with this command:
In 1:1 protection architecture, normal traffic is transported either on the working transport entity or on the protection transport entity using a selector bridge at the source of the protected domain. At the sink of the protected domain the entity that carries the normal traffic is selected. Since source and sink bridge need to be coordinated, an APS protocol is necessary. Both directions of the connection are switched to protection. APS protocol is required to coordinate the two endpoints. Service will always return to (or remain on) the working connection if the switch requests are terminated.
Dual Homing is used in a ring area, where the Tunnel spokes are connected to the intermediate hub nodes in a dual homing, implemented using 1:1 Tunnel Redundancy without APS. TMPLS encapsulated R-APS messages are used as a MAC flushing mechanism for the dual home nodes.
Up to 64 Protection Groups are supported per node.
Note:
The two tunnels that assume the role of working tunnel and protection tunnel must have already been created and activated. See Procedure 9-6: Create Tunnel segments and Tunnel AIDs.
Step
1 |
Login to the VLNC42B. |
2 |
From the Navigation menu, select TMPLS → Protection → FFP Configuration. Equivalent TL1 command: ent-ffptmpls. Result: The Fast Facility Protection Group Configuration screen displays. |
3 |
In the FFP AID drop-down box, select Create to create a new FFP group. Select the appropriate FFP AID to delete/modify and FFP group. |
4 |
Enter the parameters as required. See Fast facility protection group parameters. Equivalent TL1 command: ENT-FFPTMPLS:[ TID]::[CTAG]:::WKG=,PROTN=[,LAYER=][,PTYPE=][,RVRT=][,RVRTTIM=][,HLDFFTTIM=][,APSPHB=]; Result: FFPTUNNEL AID is output. This output parameter is used to refer to the FFPTUNNEL entity in ED-FFP-TMPLS, RTRV-FFP-TMPLS and DLTFFP- TMPLS commands. Examples: The following example shows a T(MPLS) FFP group creation with specific values set to hold-off timer and wait-to-revert timer: ENT-FFP-TMPLS:::::WKG=TUNNEL-7-9-100-8-4-3-2-2-4-3-2-1,PROTN=TUNNEL-5-8-100-8-4-3-2-2-4-3-2- 1,RVRTTIM=12, HLDFFTTIM=1500; |
5 |
Click Submit to modify the existing FFP or create a new FFP. Click Delete to delete the existing Fast Facility Protection Group. End of steps |
Fast facility protection group parameters
|
Parameter |
Value |
TL1 command |
|---|---|---|
|
FFP Selector (wkg) |
The FFP Tunnel Protection Group AID. A drop-down list containing "Create" and all FFP Tunnel Protection Groups in the system. The Create selection is not valid in the drop-down list if the total number of FFP groups in the system has already reached 64. |
rtrv-ffp-tmpls |
|
Working Tunnel (wkg) |
For "Create", this is a drop-down list containing all unprotected, terminated tunnels in the system. The Working and Protecting Tunnels cannot be the same. For "Delete/Modify", this is a display-only field displaying the Working Tunnel for the selected FFP above. |
ent-ffp-tmpls: wkg= |
|
Protecting Tunnel (protn) |
For "Create", this is a drop-down list containing all unprotected, terminated tunnels in the system. The Working and Protecting Tunnels cannot be the same. For "Delete/Modify", this is a display-only field displaying the Protecting Tunnel for the selected FFP above. |
ent-ffp-tmpls: protn= |
|
Layer |
This parameter specifies that the protection is done on the TUNNEL layer. |
ent-ffp-tmpls: layer= |
|
Revert Time (min) (rvrttim) |
This parameter specifies the revert time in minutes for the protection. This field is editable only when creating or modifying the FFP. Valid values: integers in the range of 0 - 12 and 3060. The default value 5 min. |
ent-ffp-tmpls: rvrttim= |
|
Protection Type |
Type of the protection. Valid values: The default is APSBIRDIR. Dual Homing is used in ring area, where the Tunnel spokes are connected to the intermediate hub nodes in a dual homing, implemented using 1:1 Tunnel Redundancy without APS. TMPLS encapsulated R-APS messages are used as a MAC flushing mechanism for the dual home nodes. |
ent-ffp-tmpls: ptype= |
|
Revertive (rvrt) |
This parameter specifies whether or not the protection is revertive. The default and only value is Yes in this release. |
ent-ffp-tmpls: rvrt= |
|
Hold Off Time (msec) (hldffptim) |
This is the hold off time for the automatic switching. A drop-down list containing integers 0 - 10000 msec in steps of 100msec. The default value is 0 msec. This field is editable only when creating/modifying the FFP. |
ent-ffp-tmpls: hldffptim= |
|
APS PHB (apsphb) |
This parameter specifies the PHB Scheduling Class (PSC) associated to APS packets. This field is editable only when creating/modifying the FFP. Valid values: The chosen PSC must be present in the PHB profile used by the TUSegment correspondent to the Protecting Tunnel. The field is also used for the R-APS message for the Dual Homing protection type. |
ent-ffp-tmpls: apsphb= |
|
Keep |
Defines where the PWs are mapped when the FFP is deleted. This field only applies when deleting the FFP on the PW. Valid values: MAIN or SPARE. |
dlt-ffp-tmpls: keep= |