Path selection in Silverpeak

Silver Peak appliance (EdgeConnect) performs routing based on below subnet table lookup and criteria –

1. Longest Match –

In this case, the longest prefix is given preference while selecting the best path. For eg – 172.16.0.0/24 is preferred route compared to 172.16.0.0/16

2. Local Preference –

Local subnet (locally connected) is always given preference compared to subnets learned via advertisement.

3. Lowest Metric –

Lower the metric, more the preferred path. For e.g. – Network X.X.X.0/24 from device A with metric 30 is given preference compared to same network from device B with metric 40.

4. Lowest Priority –

This is also called Peer Priority. The device chooses the route from peer with the lowest priority. This is a configurable line items and can be configured under “Configuration” section.

5. Random –

In case all of the above mentioned criteria are same or equal, path selection will be performed randomly.

ABOUT THE AUTHOR

Rashmi Bhardwaj

Founder of AAR TECHNOSOLUTIONS, Rashmi is an evangelist for IT and technology. With more than 12 years in the IT ecosystem, she has been supporting multi domain functions across IT & consultancy services, in addition to Technical content making.

You can learn more about her on her linkedin profile – Rashmi Bhardwaj