Citrix SD-WAN Series User Manual

Citrix SD-WAN Platforms
• Routes are added in the Virtual WAN configuration file directing all Virtual WAN data traic com-
ing from the WAN to the Client/Server LAN Subnet.
Microso Azure supports only gateway mode for deployments. For more information about gateway
mode, see gateway mode
Citrix SD-WAN Standard Edition Virtual Appliance (VPX) high availability
Support for AWS
December 4, 2020
The following procedure describes how to deploy SD-WAN virtual (VPX) appliances in high-availability
mode on the AWS cloud.
Points to consider when deploying SD-WAN VPX high availability appliances in the AWS Cloud.
1. AWS does not support GARP (Generic Attribute Registration Protocol), VLAN or L2 related func-
tionality, such as promiscuous mode and bridging. This is because two VMs belonging to dier-
ent customers can be scheduled on the same host sharing NICs.
2. L2 requires the switch appliance to be configured and these are not exposed to AWS users.
3. SD-WAN appliance high availability model depends on GARP. When failover occurs, the new pri-
mary appliance sends GARPS out for VIP addresses.
4. AWS takes a new approach for high availability failover. A new concept of ENI (Elastic Network
Interface) is introduced. ENI is an entity which stands for Network Interface which has attributes
like the IP address, MAC address, Security Group, and Port Rules.
5. You can move ENIs from active or inactive Instance to another active or inactive Instance.
6. The Instance must be capable to handling the hot plug of interfaces.
7. Each Instance type has limitations on the number of ENIs associated and number of IPs per ENI.
8. AWS design for high availability failover involves Instances communicating with the external
server to call Query API AWS servers.
9. The AWS servers are traditional HTTP servers. A request is sent from an instance to the Query
API server to get or post information regarding an Instance/subnet/VPC or any other attribute
on the AWS.
10. For the cloud platform setup, the shared base MAC address configuration is ignored and has no
significance.
Deploy Citrix SD-WAN standard edition VPX in high availability mode using cloud
template
For more information,refer to the EBS best practices and Must-know best practices for Amazon EBS
encryption
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Citrix SD-WAN Series Specifications

General

Product Type	SD-WAN Appliance
Product Series	SD-WAN
Network Interfaces	Gigabit Ethernet
Performance	Varies by model
Form Factor	Rackmount
Management	CLI
Throughput	Varies by model
Interfaces	Ethernet
VPN Support	IPsec, SSL VPN
High Availability	Yes
Security Features	Firewall
WAN Optimization	Application Acceleration, Data Deduplication, Compression