IS-IS Graceful Support #423
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| Original file line number | Diff line number | Diff line change |
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| openapi: 3.0.3 | ||
| info: | ||
| title: IS-IS Control models | ||
| description: >- | ||
| All IS-IS control schemas | ||
| version: ^0.0.0 | ||
| components: | ||
| schemas: | ||
| Action.Protocol.Isis: | ||
| description: >- | ||
| Actions associated with IS-IS on configured resources. | ||
| type: object | ||
| properties: | ||
| initiate_restart: | ||
| description: >- | ||
| Configuration for the initiation of the IS-IS Graceful Restart. | ||
| $ref: "#/components/schemas/Isis.Action.Protocol.Isis.InitiateRestart" | ||
| x-field-uid: 2 | ||
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| Isis.Action.Protocol.Isis.InitiateRestart: | ||
| description: |- | ||
| Container of the configuration for the initiation of IS-IS Graceful Restart. | ||
| Timers T1 and T2 are used both by a restarting router and a starting router. Timer T3 is used only by a restarting router. | ||
| - Timer T1 is maintained per interface and indicates the time after which an unacknowledged (re)start attempt will be repeated. Its value is 3 seconds. | ||
| - Timer T2 is maintained for each LSP database (LSPDB) for Level 1 and Level 2. Default value is 60 seconds. | ||
|
There was a problem hiding this comment. If this expired, what should the impl. do ? |
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| - Timer T3 is maintained for the entire system fter which the router will declare that it has failed to achieve database synchronization | ||
| (by setting the overload bit in its own LSP). Its initial value is 65535 seconds and is set to minimum of the remaining times of received IIHs | ||
| containing a Restart TlV with the RA set. | ||
| type: object | ||
| properties: | ||
| router_names: | ||
| description: >- | ||
| The names of device objects to control. | ||
| type: array | ||
| items: | ||
| type: string | ||
| x-constraint: | ||
| - /components/schemas/Device.IsisRouter/properties/name | ||
| x-field-uid: 1 | ||
| choice: | ||
| type: string | ||
| default: unplanned | ||
| x-field-uid: 2 | ||
| x-enum: | ||
| unplanned: | ||
| x-field-uid: 1 | ||
| subpress_adjacency: | ||
| x-field-uid: 3 | ||
| unplanned: | ||
| $ref: "#/components/schemas/Isis.Action.Protocol.Isis.UnplannedRestart" | ||
| x-field-uid: 3 | ||
| supress_adjacency: | ||
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| $ref: "#/components/schemas/Isis.Action.Protocol.Isis.SupressAdjacency" | ||
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| x-field-uid: 5 | ||
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| Isis.Action.Protocol.Isis.UnplannedRestart: | ||
| description: >- | ||
| Initiates IS-IS Unplanned Graceful Restart process for the selected IS-IS routers. | ||
| If no name is specified then Graceful Restart will be sent to all configured IS-IS routers. | ||
| When an emulated IS-IS router is in the unplanned "Restarting" mode, | ||
| it sends to the neighbor router (DUT) an IIH containing a Restart TLV with the RR (Restart Request) bit set. | ||
|
There was a problem hiding this comment. sit and hold_time updated to as specified by user to indicate the maximum time within which this router or routers will complete the graceful restart. |
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| type: object | ||
| properties: | ||
| holding_time: | ||
| description: >- | ||
| This is the estimated duration (in seconds) it will take for the | ||
| IS-IS session to be re-established after a restart. | ||
| The hold-timer in the IIH is updated with this time. | ||
| type: integer | ||
| format: uint32 | ||
| maximum: 4096 | ||
| default: 30 | ||
| minimum: 10 | ||
| x-field-uid: 1 | ||
| restart_after: | ||
| description: >- | ||
| Time (in seconds) after which the actually restart will be initiated in IIH with Restart Tlv having RR bit set. | ||
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| type: integer | ||
| format: uint32 | ||
| maximum: 4096 | ||
| default: 10 | ||
| minimum: 10 | ||
| x-field-uid: 2 | ||
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| Isis.Action.Protocol.Isis.SupressAdjacency: | ||
| description: >- | ||
| Initiates IS-IS Suppress adjacency advertisement process for the selected IS-IS routers. | ||
| If no name is specified then Start will be sent to all configured IS-IS routers. | ||
| When an emulated IS-IS router is in the unplanned "Restarting" mode, | ||
| it sends to the neighbor router (DUT) an IIH containing a Restart TLV with the SA (Suppress adjacency advertisement) bit set. | ||
| type: object | ||
| properties: | ||
| holding_time: | ||
| description: >- | ||
| This is the estimated duration (in seconds) it will take for | ||
| the IS-IS session to be re-established after a start by initiating Restart TLV having SA bit set in IIH. | ||
| The hold-timer in the IIH is updated with this time. | ||
| type: integer | ||
| format: uint32 | ||
| maximum: 4096 | ||
| default: 30 | ||
| minimum: 10 | ||
| x-field-uid: 1 | ||
| restart_after: | ||
| description: >- | ||
| Time (in seconds) after which the actually Restart TLV will be initiated in IIH with Restart TLV having SA bit set. | ||
| type: integer | ||
| format: uint32 | ||
| maximum: 4096 | ||
| default: 10 | ||
| minimum: 10 | ||
| x-field-uid: 2 | ||
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,19 @@ | ||
| components: | ||
| schemas: | ||
| Isis.GracefulRestart: | ||
| description: |- | ||
| Contains IS-IS Graceful configuration parameters. | ||
| The emulated IS-IS router that supports Graceful Restart capability MUST include Restart TLV in all transmitted IIHs. | ||
| - If this router is to be acting as the "Helper" mode for a Restarting Router. | ||
|
There was a problem hiding this comment. I think this can be excluded. |
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| - If this router is to be acting as the "Restarting" mode then "Restart" trigger should be initiated by set_control_action for "isis" under "protocol" choice. | ||
| In that case, "helper_mode" can be configured as true or false for the "Helper" mode as well "Restarting" mode or only "Restaring" router respectively. | ||
|
There was a problem hiding this comment. Can also be probably removed. |
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| Reference: https://datatracker.ietf.org/doc/html/rfc8706 | ||
| type: object | ||
| properties: | ||
| helper_mode: | ||
| description: >- | ||
| The emulated IS-IS router will act as the "Helper" for the DUT that is restarting. | ||
| It acknowledges the Restart TLV sent by the DUT by sending an IIH containing a Restart TLV with the RA (Restart Acknowledgment) bit set. | ||
| type: boolean | ||
| default: true | ||
| x-field-uid: 1 | ||
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