Port Trunking
Port Status and Configuration
ProCurve(config)# int a17 lacp passive
Error configuring port A17: LACP and port security cannot be run together.
To restore LACP to the port, you must remove port security and re-enable
LACP active or passive.
Changing Trunking Methods.
To convert a trunk from static to dynamic,
you must first eliminate the static trunk.
Static LACP Trunks.
Where a port is configured for LACP (Active or
Passive), but does not belong to an existing trunk group, you can add that port
to a static trunk. Doing so disables dynamic LACP on that port, which means
you must manually configure both ends of the trunk.
Dynamic LACP Trunks.
You can configure a port for LACP-active or LACP-
passive, but on a dynamic LACP trunk you cannot configure the other options
that you can on static trunks. If you want to manually configure a trunk, use
the
trunk
command. (Refer to “Using the CLI To Configure a Static or Dynamic
Trunk Group” on page 12-12.)
VLANs and Dynamic LACP.
A dynamic LACP trunk operates only in the
default VLAN (unless you have enabled GVRP on the switch and use
Forbid
to
prevent the ports from joining the default VLAN).
■
If you want to use LACP for a trunk on a non-default VLAN and GVRP is
disabled, configure the trunk as a static trunk.
■
If there are ports that you do not want on the default VLAN, ensure that
they cannot become dynamic LACP trunk members. Otherwise a traffic
loop can unexpectedly occur. For example:
VLAN-1
(Default
VLAN)
VLAN-2
VLAN-1
(Default
VLAN)
VLAN-2
VLAN-1
(Default
VLAN)
VLAN-2
VLAN-1
(Default
VLAN)
VLAN-2
If the ports in VLAN 2 are configured to allow a dynamic trunk (and GVRP is disabled), adding a
second link in VLAN 2 automatically forms a dynamic LACP trunk and moves the trunk to VLAN-1
(the default VLAN), which creates a traffic loop in VLAN 1 between the two switches and
eliminates the link in VLAN 2 between the two switches.
Figure 12-8. A Dynamic LACP Trunk Forming in a VLAN Can Cause a Traffic Loop
12-20
Summary of Contents for ProCurve 2610-24
Page 1: ...Management and Configuration Guide 2610 2610 PWR ProCurve Switches R 11 XX www procurve com ...
Page 2: ......
Page 18: ...xvi ...
Page 24: ...Product Documentation xxii ...
Page 54: ...Using the Menu Interface Where To Go From Here 3 16 ...
Page 94: ...Using the Web Browser Interface Status Reporting Features 5 24 ...
Page 132: ...Switch Memory and Configuration Multiple Configuration Files 6 38 ...
Page 148: ...Interface Access and System Information System Information 7 16 ...
Page 192: ...Time Protocols SNTP Messages in the Event Log 9 24 ...
Page 256: ...Power Over Ethernet PoE Operation PoE Event Log Messages 11 18 ...
Page 280: ...Port Trunking Port Status and Configuration 12 24 ...
Page 362: ...File Transfers Copying Diagnostic Data to a Remote Host PC or Unix Workstation A 24 ...
Page 438: ...Troubleshooting Restoring a Flash Image C 48 ...
Page 446: ...MAC Address Management Viewing the MAC Addresses of Connected Devices D 8 ...
Page 450: ...Daylight Savings Time on ProCurve Switches Configuring Daylight Savings Time E 4 ...
Page 462: ...12 Index ...
Page 463: ......