As Citrix Synergy 2013 in Los Angeles is fast approaching, we all work hard to ensure our valued customers and partners appreciate and learn as much as possible during the show. If you attend Synergy and interested in cloud computing, you're probably very happy to see more sessions focused on cloud computing this year. One of these sessions focused cloud SYN301 :. Architecting your cloud infrastructure , will be co-organized by myself and Matt Mullins
Matt and I come from different departments Citrix Cloud Group. Matt is an implementation engineer CloudPlatform extremely talented and experienced our Cloud Services Worldwide and I am a senior engineer sales Citrix Cloud Platform Group. Matt is the post-sale part of a cloud project, while I focus on pre-sales activities that include (PoC) Proof-of-Concept installations. We both hope you will be able to join our session where Matt and I will share our knowledge and experience on how to successfully architect your cloud infrastructure. You will not want to miss this session, then make sure to add it to your calendar today!
Today I want to share some lessons we have learned from hundreds of PoCs we conducted Citrix Cloud Platform Group.
one of the most common questions we are asked is. "How long does it take to standup Citrix CloudPlatform PoC" My answer is always the same, "Anywhere from 20 minutes (yes, 20 minutes ) to 20 days. it all depends on how prepared you are. "
the area where we see most of the delays and challenges is networking. The main reason for these challenges is mainly the lack of understanding Citrix CloudPlatform network options and the requirements for each network topology. This has nothing to be ashamed Citrix CloudPlatform and Cloud in general, introduces a new approach to networking and the learning curve can be a bit long, even for networking gurus.
network in Citrix CloudPlatform is quite unique. The reason Citrix CloudPlatform (or Apache CloudStack) is so popular and successful is because it supports multiple network models. Citrix CloudPlatform does not force companies to use the specific network architecture for their cloud, instead it offers several models that can meet different use cases.
The challenge is that each network model requires different network conditions, so the first step in deploying PoC is to decide on the network topology that will be used and to prepare all the required elements . Here are some high-level networking concepts that will help you get started
Citrix CloudPlatform Networking Concepts
There are several concepts that are important for understanding the implementation Citrix CloudPlatform .:
- Citrix CloudPlatform uses DHCP to manage and allocate IP addresses to authorities. Citrix CloudPlatform DHCP allocate IP addresses to the authorities by their unique MAC address (we use a special MAC address with the prefix 06: X: X: X) - if another DHCP resides on the network, administrators will exclude Citrix CloudPlatform MAC addresses on the DHCP server and prevent it from allocating IP addresses to request the 06: .. MAC prefix X
- basic network does not support VLAN ID while network Advanced requires VLAN ID
- in advanced network, the most common problem we face is the lack of proper configuration of network switches. Network switches must be correctly configured for VLAN trunking (802.1q).
- There are several types of traffic used in Citrix CloudPlatform, as the network model used, evaluators should prepare different ranges of IP addresses (which can not overlap and everyone has to use different CIDR). For example, core network uses traffic management, optional storage customer traffic and traffic. Advanced Network requires public traffic, management traffic, the optional storage traffic and customer traffic (if using shared networks) if isolated networks are used, the client IP address will be managed by the virtual router ).
- backbone network is considered a more scalable network topology. Usually, the limiting factor is the amount of admins assign IP clients. This reflects the number of cases can be deployed
- Advanced Networking is a rich model features, however, since it is based on VLAN ID, a single zone supports up to ~ 4096 (known VLAN limit ) - this will be addressed in the future as new isolation methods will be supported. Currently, if a tip region has reached its limit of VLAN, a new area must be created.
Based on our experiences, we have created a special list CloudPlatform Guide Citrix PoC explains the different network designs and exactly what is needed to install a PoC. The guide also provides information on other elements such as storage, the specific requirements of the hypervisor and overall best practices and advice. A must read if you plan to evaluate Citrix CloudPlatform soon.
If you plan to start a Citrix CloudPlatform PoC do not forget to download the PoC list guide. The guide is provided as part of the supporting documentation for Citrix CloudPlatform 0-day trial.
Matt and I look forward to seeing you in the synergy!
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