HP ProCurve 6108, Management And Configuration Manual

Page: 184 / 547

Optimizing Traffic Flow with Port Controls, Port Trunking, and Port-Based Priority
Port Trunking
Port Trunking
Port Status and Configuration Features
Feature Default Menu CLI Web
viewing port trunks n/a page 10-16 page 10-18 page 10-24
configuring a static trunk none page 10-16 page 10-22 —
group
configuring a dynamic LACP
trunk group LACP passive — page 10-22 —
Port trunking allows you to assign up to four physical links to one logical link
(trunk) that functions as a single, higher-speed link providing dramatically
increased bandwidth. This capability applies to connections between back-
bone devices as well as to connections in other network areas where traffic
bottlenecks exist. A
trunk group is a set of up to four ports configured as
members of the same port trunk. Note that the ports in a trunk group do not
have to be consecutive. For example:
Switch 1:
Ports c1 - c4
configured
as a port
trunk group.
The multiple physical links in a trunk behave as one logical link
port c1
port c2
port c3
port c4
port c5
port c6
port c7
. . .
port
n
port a1
port a2
port a3
port a4
port a5
port a6
port a7
. . .
port
n
Switch 2:
Ports a2 and
a4 - a6 are
configured as
a port trunk
group
Figure 10-5. Conceptual Example of Port Trunking
Port Connections and Configuration: All port trunk links must be point-
to-point connections between the switch and a router, server, workstation, or
another switch configured for port trunking. No intervening, non-trunking
devices are allowed. It is important to note that ports on both ends of a port
trunk group must have the same mode (speed and duplex) and flow control
settings.
10-10