Using Hunt Groups To Aggregate Bandwidth Between Switches - Avaya Cajun P882 User Manual

Chapter 4
Using Hunt Groups to Aggregate Bandwidth
between Switches
Hunt Group
Overview
4-28
Refer to the Command Reference Guide for the Avaya P550R, P580, P880,
and P882 Multiservice Switches, Version 5.3.1 for details about this
command.
Hunt groups allow you to aggregate multiple switch ports to act as
one switch port, effectively combining the bandwidth into a single
connection. Frames sent to the Hunt Group will be transmitted by
one of the ports in the Hunt Group. Hunt Groups load share traffic
across all member ports, this aggregates the bandwidth of the Hunt
Group ports. Hunt groups also provide fault tolerance. If a port in a
hunt group fails, the remaining ports in the hunt group will assume
the traffic and continue forwarding. Figure 4-15 shows an example
of a Hunt Group.
Figure 4-15. Hunt Group Example
Hunt Groups expand the capacity of the core switched backbone.
While there is no specific limit on the number of ports in a Hunt
Group (see the section labeled Hunt Group configuration
considerations). In the example, the Hunt Group consists of two
full-duplex Gigabit Ethernet links shared between two switches, for
an aggregate capacity of 4 Gbps. Enterprise-level servers can be
directly attached to the switching core using either 100 Mbps or
Gigabit Ethernet connections. Fault-tolerant spanning tree links
from the core to the next level of network spread the distribution
and capacity to building or departmental switching centers. Each of
Avaya P550R, P580, P880, and P882 Multiservice Switch User Guide, Version 5.3.1