System information

12-3
Port Trunking
Port Status and Configuration
Figure 12-1. 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.
Note Link Connections
The switch does not support trunking through an intermediate, non-trunking
device such as a hub, or using more than one media type in a port trunk group.
Similarly, all links in the same trunk group must have the same speed, duplex,
and flow control.
Caution To avoid broadcast storms or loops in your network while configuring a
trunk, first disable or disconnect all ports you want to add to or remove from
the trunk. After you configure the trunk, enable or re-connect the ports.
Port Trunk Options and Operation
The switch offers these options for port trunking:
■ LACP (IEEE 802.3ad—page 12-15)
■ Trunk (non-protocol—page 12-21)
The ProCurve 2610-24 switch supports twelve trunk groups of up to eight ports
each. The ProCurve 2610-48 supports twenty-four trunk groups of up to eight
ports each. (Using the Link Aggregation Control Protocol—LACP—option,
you can include standby trunked ports in addition to the maximum of four
actively trunking ports.)
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