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SD-WAN Route Group
Configure an SD-WAN route group.
Navigate using the tab icons. Hover over an icon to see the name of the tab.
Configure > Network Policies > policy_name > Router Settings > SD-WAN > Add
An SD-WAN route group is a list of prioritized WAN ports that you can use as a forwarding action in a routing policy (see Routing Policy). You can create multiple route groups for use by Extreme Networks routers in different locations or for different purposes. For example, you might have one group that makes ETH0 the top priority when sending important banking data through a port that is connected to a secure, dedicated MPLS link or leased line. In another group you might make USB the top priority for routers in locations that do not have Ethernet access and must rely on the LTE network for WAN access.
SD-WAN route groups are part of a larger configuration workflow that you can see in SD-WAN.
To configure a route group, enter the following information and then select Save:
Group Name: Enter a name for the SD-WAN route group.
Description: Enter an optional note. It can containing up to 64 characters including spaces.
WAN Priority
Set routing priorities for the following WAN links on routers:
WAN0: The highest prioritized Ethernet link in the router template
WAN1: The second highest prioritized Ethernet link in the router template
USB: The WAN link of a connected USB LTE modem
The WAN0 and WAN1 priorities in a route group do not necessarily pertain to the WAN links identified as primary and backup1 in a BR200WP router template. For example, if the USB WAN link was set as primary in the template, then WAN0 would apply to whatever Ethernet WAN link was set as backup1 in the template, and WAN1 would apply to whatever Ethernet WAN link was set as backup2. A similar situation would arise if the USB WAN link was prioritized as backup1 in the template. In this case, WAN0 would apply to the Ethernet WAN link set as primary and WAN1 would apply to whatever Ethernet WAN link was prioritized as backup2.
If you create a router template with just two WAN links—ETH0 and USB for example—and you create an SD-WAN group with priorities for three WAN ports, XR200P or XR600P routers ignore the third WAN interface.
BR200WP routers, which do not support SD-WAN, use the WAN port priorities exactly as they are set in their device template. They also ignore any firewall policy rules that use an SD-WAN route group as a forwarding action.
Routing Decision Rule
SD-WAN monitors link quality over multiple WANs, and dynamically decides when to switch WAN paths. However, applications have different sensitivities to different operational faults, including jitter, packet loss, and latency. For example, real-time streaming services such as voice, and to some extent video, can be affected by jitter; but file transfers and email are unaffected by jitter. You can customize SD-WAN settings to take these factors into account.
Define the following responses to operational faults for your SD-WAN routing decisions:
Include Jitter: Select ON to have jitter considered for WAN path changes.
Packet Loss: Select an aggressive, normal, or moderate response to packet losses.
Latency: Select an aggressive, normal, or moderate response to detected latency.
Jitter: (Only if Include Jitter is set to ON): Select an aggressive, normal, or moderate response to jitter.
When you are finished with your changes, select Save.
Copyright © 2020 Extreme Networks. All rights reserved. Published March 2020.