Troubleshooting

Unusual Network Activity

2400M/2424M/4000M/8000M Port To Join the Mesh . One of the Series

5300XL switches in the mesh domain has detected a duplicate MAC address on multiple switches. For example:

 

 

2

 

 

N

 

A

L

 

V

 

 

5300-1

 

 

 

 

 

 

Illegal Topology for

 

 

 

 

 

 

Heterogenous Mesh

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Node “N”

 

 

 

 

 

 

4000M

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

V

 

 

 

 

 

 

 

 

 

 

 

L

 

 

 

 

 

 

 

 

 

 

 

A

 

 

 

 

 

 

 

 

 

N

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

5300-2

 

 

 

 

 

 

Mesh Domain

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Changing the topology can solve this problem. Also, the duplicate MAC

 

 

address must age out before the Switch 1600M/2400M/2424M/4000M/8000M

 

 

port can join the mesh. Refer to “Using a Heterogeneous Switch Mesh” on page

 

 

14-7,and to the bulleted item “Compatibility with Older Switches” on page

 

 

14-25.

 

 

 

 

 

 

 

 

 

 

 

Duplicate MAC Addresses on Different Switches. In a switch mesh that

 

 

includes any 1600M/2400M/2424M/4000M/8000M switches, duplicate MAC

 

 

addresses on different switches are not allowed. (The 1600M/2400M/2424M/

 

 

4000M/8000M switches do not recognize multiple instances of a particular

 

 

MAC address on different VLANs.) Refer to “The Switch Mesh Does Not Allow

 

 

An HP Procurve Switch 1600M/2400M/2424M/4000M/8000M Port To Join the

 

 

Mesh” on page C-9.

 

 

 

 

 

 

 

 

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

 

 

 

 

 

 

 

 

 

 

N o t e

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-13.

The switch does not receive a response to RADIUS authentication requests. In this case, the switch will attempt authentication using the secondary method configured for the type of access you are using (console, Telnet, or SSH).

There can be several reasons for not receiving a response to an authentication request. Do the following:

C-10