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/*
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
 * in compliance with the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License
 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
 * or implied. See the License for the specific language governing permissions and limitations under
 * the License.
 */
/*
 * This code was generated by https://github.com/googleapis/google-api-java-client-services/
 * Modify at your own risk.
 */

package com.google.api.services.compute.model;

/**
 * Model definition for BackendServiceHAPolicy.
 *
 * 

This is the Java data model class that specifies how to parse/serialize into the JSON that is * transmitted over HTTP when working with the Compute Engine API. For a detailed explanation see: * https://developers.google.com/api-client-library/java/google-http-java-client/json *

* * @author Google, Inc. */ @SuppressWarnings("javadoc") public final class BackendServiceHAPolicy extends com.google.api.client.json.GenericJson { /** * Specifies whether fast IP move is enabled, and if so, the mechanism to achieve it. Supported * values are: - DISABLED: Fast IP Move is disabled. You can only use the haPolicy.leader API to * update the leader. - >GARP_RA: Provides a method to very quickly define a new network endpoint * as the leader. This method is faster than updating the leader using the haPolicy.leader API. * Fast IP move works as follows: The VM hosting the network endpoint that should become the new * leader sends either a Gratuitous ARP (GARP) packet (IPv4) or an ICMPv6 Router Advertisement(RA) * packet (IPv6). Google Cloud immediately but temporarily associates the forwarding rule IP * address with that VM, and both new and in-flight packets are quickly delivered to that VM. Note * the important properties of the Fast IP Move functionality: - The GARP/RA-initiated re-routing * stays active for approximately 20 minutes. After triggering fast failover, you must also * appropriately set the haPolicy.leader. - The new leader instance should continue to send * GARP/RA packets periodically every 10 seconds until at least 10 minutes after updating the * haPolicy.leader (but stop immediately if it is no longer the leader). - After triggering a fast * failover, we recommend that you wait at least 3 seconds before sending another GARP/RA packet * from a different VM instance to avoid race conditions. - Don't send GARP/RA packets from * different VM instances at the same time. If multiple instances continue to send GARP/RA * packets, traffic might be routed to different destinations in an alternating order. This * condition ceases when a single instance issues a GARP/RA packet. - The GARP/RA request always * takes priority over the leader API. Using the haPolicy.leader API to change the leader to a * different instance will have no effect until the GARP/RA request becomes inactive. - The * GARP/RA packets should follow the GARP/RA Packet Specifications.. - When multiple forwarding * rules refer to a regional backend service, you need only send a GARP or RA packet for a single * forwarding rule virtual IP. The virtual IPs for all forwarding rules targeting the same backend * service will also be moved to the sender of the GARP or RA packet. The following are the Fast * IP Move limitations (that is, when fastIPMove is not DISABLED): - Multiple forwarding rules * cannot use the same IP address if one of them refers to a regional backend service with * fastIPMove. - The regional backend service must set the network field, and all NEGs must belong * to that network. However, individual NEGs can belong to different subnetworks of that network. * - The maximum number of network endpoints across all backends of a backend service with * fastIPMove is 64. - The maximum number of backend services with fastIPMove that can have the * same network endpoint attached to one of its backends is 64. - The maximum number of backend * services with fastIPMove in a VPC in a region is 64. - The network endpoints that are attached * to a backend of a backend service with fastIPMove cannot resolve to C3 machines. - Traffic * directed to the leader by a static route next hop will not be redirected to a new leader by * fast failover. Such traffic will only be redirected once an haPolicy.leader update has taken * effect. Only traffic to the forwarding rule's virtual IP will be redirected to a new leader by * fast failover. haPolicy.fastIPMove can be set only at backend service creation time. Once set, * it cannot be updated. By default, fastIpMove is set to DISABLED. * The value may be {@code null}. */ @com.google.api.client.util.Key private java.lang.String fastIPMove; /** * Specifies whether fast IP move is enabled, and if so, the mechanism to achieve it. Supported * values are: - DISABLED: Fast IP Move is disabled. You can only use the haPolicy.leader API to * update the leader. - >GARP_RA: Provides a method to very quickly define a new network endpoint * as the leader. This method is faster than updating the leader using the haPolicy.leader API. * Fast IP move works as follows: The VM hosting the network endpoint that should become the new * leader sends either a Gratuitous ARP (GARP) packet (IPv4) or an ICMPv6 Router Advertisement(RA) * packet (IPv6). Google Cloud immediately but temporarily associates the forwarding rule IP * address with that VM, and both new and in-flight packets are quickly delivered to that VM. Note * the important properties of the Fast IP Move functionality: - The GARP/RA-initiated re-routing * stays active for approximately 20 minutes. After triggering fast failover, you must also * appropriately set the haPolicy.leader. - The new leader instance should continue to send * GARP/RA packets periodically every 10 seconds until at least 10 minutes after updating the * haPolicy.leader (but stop immediately if it is no longer the leader). - After triggering a fast * failover, we recommend that you wait at least 3 seconds before sending another GARP/RA packet * from a different VM instance to avoid race conditions. - Don't send GARP/RA packets from * different VM instances at the same time. If multiple instances continue to send GARP/RA * packets, traffic might be routed to different destinations in an alternating order. This * condition ceases when a single instance issues a GARP/RA packet. - The GARP/RA request always * takes priority over the leader API. Using the haPolicy.leader API to change the leader to a * different instance will have no effect until the GARP/RA request becomes inactive. - The * GARP/RA packets should follow the GARP/RA Packet Specifications.. - When multiple forwarding * rules refer to a regional backend service, you need only send a GARP or RA packet for a single * forwarding rule virtual IP. The virtual IPs for all forwarding rules targeting the same backend * service will also be moved to the sender of the GARP or RA packet. The following are the Fast * IP Move limitations (that is, when fastIPMove is not DISABLED): - Multiple forwarding rules * cannot use the same IP address if one of them refers to a regional backend service with * fastIPMove. - The regional backend service must set the network field, and all NEGs must belong * to that network. However, individual NEGs can belong to different subnetworks of that network. * - The maximum number of network endpoints across all backends of a backend service with * fastIPMove is 64. - The maximum number of backend services with fastIPMove that can have the * same network endpoint attached to one of its backends is 64. - The maximum number of backend * services with fastIPMove in a VPC in a region is 64. - The network endpoints that are attached * to a backend of a backend service with fastIPMove cannot resolve to C3 machines. - Traffic * directed to the leader by a static route next hop will not be redirected to a new leader by * fast failover. Such traffic will only be redirected once an haPolicy.leader update has taken * effect. Only traffic to the forwarding rule's virtual IP will be redirected to a new leader by * fast failover. haPolicy.fastIPMove can be set only at backend service creation time. Once set, * it cannot be updated. By default, fastIpMove is set to DISABLED. * @return value or {@code null} for none */ public java.lang.String getFastIPMove() { return fastIPMove; } /** * Specifies whether fast IP move is enabled, and if so, the mechanism to achieve it. Supported * values are: - DISABLED: Fast IP Move is disabled. You can only use the haPolicy.leader API to * update the leader. - >GARP_RA: Provides a method to very quickly define a new network endpoint * as the leader. This method is faster than updating the leader using the haPolicy.leader API. * Fast IP move works as follows: The VM hosting the network endpoint that should become the new * leader sends either a Gratuitous ARP (GARP) packet (IPv4) or an ICMPv6 Router Advertisement(RA) * packet (IPv6). Google Cloud immediately but temporarily associates the forwarding rule IP * address with that VM, and both new and in-flight packets are quickly delivered to that VM. Note * the important properties of the Fast IP Move functionality: - The GARP/RA-initiated re-routing * stays active for approximately 20 minutes. After triggering fast failover, you must also * appropriately set the haPolicy.leader. - The new leader instance should continue to send * GARP/RA packets periodically every 10 seconds until at least 10 minutes after updating the * haPolicy.leader (but stop immediately if it is no longer the leader). - After triggering a fast * failover, we recommend that you wait at least 3 seconds before sending another GARP/RA packet * from a different VM instance to avoid race conditions. - Don't send GARP/RA packets from * different VM instances at the same time. If multiple instances continue to send GARP/RA * packets, traffic might be routed to different destinations in an alternating order. This * condition ceases when a single instance issues a GARP/RA packet. - The GARP/RA request always * takes priority over the leader API. Using the haPolicy.leader API to change the leader to a * different instance will have no effect until the GARP/RA request becomes inactive. - The * GARP/RA packets should follow the GARP/RA Packet Specifications.. - When multiple forwarding * rules refer to a regional backend service, you need only send a GARP or RA packet for a single * forwarding rule virtual IP. The virtual IPs for all forwarding rules targeting the same backend * service will also be moved to the sender of the GARP or RA packet. The following are the Fast * IP Move limitations (that is, when fastIPMove is not DISABLED): - Multiple forwarding rules * cannot use the same IP address if one of them refers to a regional backend service with * fastIPMove. - The regional backend service must set the network field, and all NEGs must belong * to that network. However, individual NEGs can belong to different subnetworks of that network. * - The maximum number of network endpoints across all backends of a backend service with * fastIPMove is 64. - The maximum number of backend services with fastIPMove that can have the * same network endpoint attached to one of its backends is 64. - The maximum number of backend * services with fastIPMove in a VPC in a region is 64. - The network endpoints that are attached * to a backend of a backend service with fastIPMove cannot resolve to C3 machines. - Traffic * directed to the leader by a static route next hop will not be redirected to a new leader by * fast failover. Such traffic will only be redirected once an haPolicy.leader update has taken * effect. Only traffic to the forwarding rule's virtual IP will be redirected to a new leader by * fast failover. haPolicy.fastIPMove can be set only at backend service creation time. Once set, * it cannot be updated. By default, fastIpMove is set to DISABLED. * @param fastIPMove fastIPMove or {@code null} for none */ public BackendServiceHAPolicy setFastIPMove(java.lang.String fastIPMove) { this.fastIPMove = fastIPMove; return this; } @Override public BackendServiceHAPolicy set(String fieldName, Object value) { return (BackendServiceHAPolicy) super.set(fieldName, value); } @Override public BackendServiceHAPolicy clone() { return (BackendServiceHAPolicy) super.clone(); } }




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