HP PROCURVE 2520 Manual de usuario descargar pdf (Pagina 444)

100

101

Troubleshooting

Unusual Network Activity

Caution

Note

IP Multicast Traffic Floods Out All Ports; IGMP Does Not Appear To

Filter Traffic. The IGMP feature does not operate if the switch or VLAN does

not have an IP address configured manually or obtained through DHCP/Bootp.

To verify whether an IP address is configured for the switch or VLAN, do either

of the following:

■ Try Using the Web Browser Interface: If you can access the web

browser interface, then an IP address is configured.

■ Try To Telnet to the Switch Console: If you can Telnet to the switch,

then an IP address is configured.

■ Using the Switch Console Interface: From the Main Menu, check the

Management Address Information screen by clicking on

1. Status and Counters

2. Switch Management Address Information

LACP-Related Problems

Unable to enable LACP on a port with the interface < port-number > lacp

command. In this case, the switch displays the following message:

Operation is not allowed for a trunked port.

You cannot enable LACP on a port while it is configured as static Trunk port.

To enable LACP on static-trunked port, first use the

no trunk < port-number > command to disable the static trunk assignment, then

execute interface < port-number > lacp.

Removing a port from a trunk without first disabling the port can create a

traffic loop that can slow down or halt your network. Before removing a port

from a trunk, ProCurve recommends that you either disable the port or

disconnect it from the LAN.

Port-Based Access Control (802.1X)-Related Problems

To list the 802.1X port-access Event Log messages stored on the switch, use

show log 802.

See also “Radius-Related Problems” on page C-14.

C-10

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