Port Trunking - HP 4108GL Management And Configuration Manual

Optimizing Port Usage Through Traffic Control and Port Trunking

Port Trunking

Port Trunking

Port Status and ConfigurationFeatures
Feature
viewing port trunks
configuring a static trunk
group
configuring a dynamic LACP
trunk group
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:
Figure 11-5. Conceptual Example of Port Trunking
With full-duplex operation in a four-port trunk group, trunking enables the
following bandwidth capabilities:
Table 11-2. Bandwidth Capacity for Trunk Groups Configured for Full-Duplex
11-10
Default
n/a
none
LACP passive
The multiple physical links in a trunk behave as one logical link
Switch 1:
port c1
port c2
Ports c1 - c4
port c3
configured
port c4
as a port
port c5
trunk group.
port c6
port c7
. . .
port n
10 Mbps Links
2 Ports Up to 40 Mbps
3 Ports Up to 60 Mbps
4 Ports Up to 80 Mbps
Menu CLI
page 11-16 page 11-18
page 11-16 page 11-21
— page 11-23
port a1
port a2
port a3
port a4
port a5
port a6
port a7
. . .
port n
100 Mbps Links 1000 Mbps Links
Up to 400 Mbps Up to 4000 Mbps
Up to 600 Mbps Up to 6000 Mbps
Up to 800 Mbps Up to 8000 Mbps
Web
page 11-24
—
—
Switch 2:
Ports a3 - a6
configured as
a port trunk
group