Troubleshooting
Unusual Network Activity
Note that attempting to create redundant paths through the use of VLANs will
cause problems with some switches. One symptom is that a duplicate MAC
address appears in the Port Address Table of one port, and then later appears
on another port. While the switch has multiple forwarding databases, and thus
does not have this problem, some switches with a single forwarding database
for all VLANs may produce the impression that a connected device is moving
among ports because packets with the same MAC address but different VLANs
are received on different ports. You can avoid this problem by creating
redundant paths using port trunks or spanning tree.
Server
ProCurve
Switches Covered
by this Guide
(Multiple
Forwarding
Database)
Switch with
Single
Forwarding
Database
MAC Address “A”; VLAN 1
MAC Address “A”; VLAN 2
Problem:
This switch detects continual
moves of MAC address “A” between ports.
VLAN 1
VLAN 2
Figure C-5. Example of Duplicate MAC Address
C-20
Содержание ProCurve 2610-24
Страница 1: ...Management and Configuration Guide 2610 2610 PWR ProCurve Switches R 11 XX www procurve com ...
Страница 2: ......
Страница 3: ...ProCurve Switch 2610 Series Switch 2610 PWR Series December 2007 Management and Configuration Guide ...
Страница 18: ...xvi ...
Страница 24: ...Product Documentation xxii ...
Страница 38: ...Selecting a Management Interface Advantages of Using ProCurve Manager or ProCurve Manager Plus 2 8 ...
Страница 54: ...Using the Menu Interface Where To Go From Here 3 16 ...
Страница 94: ...Using the Web Browser Interface Status Reporting Features 5 24 ...
Страница 132: ...Switch Memory and Configuration Multiple Configuration Files 6 38 ...
Страница 148: ...Interface Access and System Information System Information 7 16 ...
Страница 168: ...Configuring IP Addressing IP Preserve Retaining VLAN 1 IP Addressing Across Configuration File Downloads 8 20 ...
Страница 192: ...Time Protocols SNTP Messages in the Event Log 9 24 ...
Страница 256: ...Power Over Ethernet PoE Operation PoE Event Log Messages 11 18 ...
Страница 280: ...Port Trunking Port Status and Configuration 12 24 ...
Страница 362: ...File Transfers Copying Diagnostic Data to a Remote Host PC or Unix Workstation A 24 ...
Страница 438: ...Troubleshooting Restoring a Flash Image C 48 ...
Страница 446: ...MAC Address Management Viewing the MAC Addresses of Connected Devices D 8 ...
Страница 450: ...Daylight Savings Time on ProCurve Switches Configuring Daylight Savings Time E 4 ...
Страница 462: ...12 Index ...
Страница 463: ......
Страница 464: ... Copyright 2007 Hewlett Packard Development Company L P December 2007 Manual Part Number 5991 8640 ...