Product Card

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Performance Optimization
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).
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 connections offer 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.
Maintaining the Same IP Address Throughout a Session
Scenario
Some IP address-sensitive websites (for example, Internet banking) use both client IP
address and cookie matching for session identification. Since load balancing uses
different IP addresses, the session is dropped when a mismatched IP is detected,
resulting in frequent interruptions while visiting such sites.
Solution
Make use of the persistence functionality of the Peplink Balance. With persistence
configured and the By Destination option selected, the Peplink Balance will use a
consistent WAN connection for source-destination pairs of IP addresses, preventing
sessions from being dropped.
With persistence configured and the option By Source is selected, the Peplink Balance
uses a consistent WAN connection for same-source IP addresses. This option offers