Load Sharing Commands - ZyXEL Communications XS3800-28 Cli Reference Manual

Load Sharing Commands

45.1 Load Sharing Overview
The Switch learns the next-hop(s) using ARP and determines routing path(s) for a destination. The Switch
supports Equal-Cost MultiPath (ECMP) to forward packets destined to the same device through different
routing paths of equal path cost. This allows you to balance or share traffic loads between multiple
routing paths when the Switch is connected to more than one next-hop. ECMP works with static routes
or a routing protocol, such as OSPF.
With ECMP, packets are routed through the paths of equal cost according to the hash algorithm output.
The maximum number of paths for one ECMP (Equal-Cost MultiPath) route varies by Switch. A smaller
number of maximum-paths means more ECMP routes are allowed and a larger number of maximum-
paths means fewer ECMP routes are allowed.
The number of paths for a static route for ECMP cannot be bigger than the maximum-paths value.
Throughput may be influenced while configuring ECMP maximum-paths.
45.2 Command Summary
The following section lists the commands for this feature.
Table 132 load-sharing Command Summary
COMMAND
ip load-sharing
ip load-sharing <sip|sip-dip>
ip load-sharing aging-time <0-
86400>
ip load-sharing discover-time
<0-86400>
DESCRIPTION
Enables load sharing on the Switch.
Sets the criteria the Switch uses to determine the routing
path for a packet.
sip: the Switch uses a hash algorithm to convert a
packet's source IP address into a hash value which acts as
an index to a route path.
sip-dip: the Switch uses a hash algorithm to convert a
packet's source and destination IP addresses into a hash
value which acts as an index to a route path.
Sets the time interval (from 0 to 86400 in increments of 10)
in seconds at which the Switch sends an ARP request to
update a resolved next-hop's MAC address.
Sets the time interval (from 0 to 86400 in increments of 10)
in seconds at which the Switch sends an ARP request to
update an unresolved next-hop's MAC address.
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