Appendix C. Case Studies; Performance Optimization - peplink ONE 20 User Manual

USER MANUAL
Peplink Balance Series

Appendix C. Case Studies

C.1

Performance Optimization

C.1.1 Scenario
In this scenario, email and web browsing are the two main Internet services used by
LAN users.
The mail server is external to the network. The connections are ADSL (WAN1, with slow
uplink and fast downlink) and Metro Ethernet (WAN2, symmetric).
C.1.2 Solution
For optimal performance with this configuration, individually set the WAN load balance
according to the characteristics of each service.

Web browsing mainly downloads data; sending e-mails mainly consumes upload
bandwidth.

Both connectionsoffer good download speeds; WAN2 offers good upload speeds.

Define WAN1 and WAN2's inbound and outbound bandwidths to be 3M/512k
and 4M/4M, respectively. This will ensure that outbound traffic is more likely to
be routed through WAN2.

For HTTP, set the weight to 3:4.

For SMTP, set the weight to 1:8, such that users will have a greater chance to be
routed via WAN2 when sending e-mail.
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