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From "saksham srivastava" <>
Subject Re: Review Request: IP Address Reservation within a Network
Date Fri, 01 Feb 2013 10:34:17 GMT

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(Updated Feb. 1, 2013, 10:34 a.m.)

Review request for cloudstack, Murali Reddy and Chiradeep Vittal.


Modifying the patch after IPv6 merge.


    CLOUDSTACK-705 IP Address reservation for Isolated Guest Networks

CloudStack uses Guest CIDR for dhcp-range for the Guest VMs. The entire CIDR is used by CloudStack
for assigning IPs to Guest VMs.
IP Address Reservation will allow part of address space to be used for non CloudStack hosts/physical
servers also, by restricting the address space of CloudStack Guest VMs.
Reservation can be configured using update Network API by specifying guestvmCidr as an additional
Reservation will be applicable for Isolated Guest Networks including VPC.
reservediprange in the response will return the IP range that can be used for non Cloudstack

This addresses bug CLOUDSTACK-705.

Diffs (updated)

  api/src/com/cloud/network/ a70bf02 
  api/src/com/cloud/network/ e3be941 
  api/src/com/cloud/network/ 786afb1 
  api/src/com/cloud/network/vpc/ 68e062c 
  api/src/org/apache/cloudstack/api/ d895191 
  api/src/org/apache/cloudstack/api/command/user/network/ 978c71b 
  api/src/org/apache/cloudstack/api/response/ 40d6850 
  server/src/com/cloud/api/ 2dcd09c 
  server/src/com/cloud/network/ 5c70caa 
  server/src/com/cloud/network/ 8020e7a 
  server/src/com/cloud/network/vpc/ 26e882e 
  server/test/com/cloud/network/ af0b03f 
  server/test/com/cloud/vpc/ 382068a 
  server/test/com/cloud/vpc/ 25799d1 
  setup/db/create-schema.sql a847b43 
  setup/db/db/schema-40to410.sql 6d5b262 



Tested manually the following scenarios:
Applying reservation when there are running VMs inside the guest_vm_cidr.
Applying reservation when there are running VMs outside the guest_vm_cidr.(not allowed)
Applying reservation when external device like Netscaler is configured in the guest_cidr.
Applying reservation in VPC tiers.
Applying reservation outside the range of guest_cidr.(not allowed)


saksham srivastava

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