Product Info
Table Of Contents
- About This Manual
- Important Notice
- Introduction
- Document structure
- Document marks
- Key Features
- Hardware Platform
- Power supply
- Lightning protection unit
- Synchronization unit
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- AUX-ODU-SYNC Cable gland Assembling
- AUX-ODU-SYNC Connection to ODU
- Packing List
- Planning considerations
- Link Pre-configuration in the lab
- Installation
- Operation & Administration
- Troubleshooting
- Glossary
Infinet Wireless: Technical Documentation – InfiMAN Evolution
Troubleshooting – 170
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112 Figure - Reset configuration
Turn offand on the unit and thenwait for about30 seconds until the"Complete" sign will uppear.
The unit will start in special emergency mode with the IP-address 10.10.10.1 and mask 255.255.255.0.
Login to the unit and use "Restore Factory Settings" button on the "Maintenance" page if you use Web GUI
or by command "configclear" by CLI to switch off emergency mode.
Set new login and password, then save the configuration and restart the unit.
8.7 Unicast-flood detection
Unicast-floodoccurs when the unicastframe'sdestination MAC-addressis unknown for the switch (not included in
its routingtable), it sends this frameto all interfaces of the network, besidesthe sender interface.The most
common reasons of unicast-flood are:
MACaddress table overflow(a common problem in large networks)
Hosts with ARP timerslongerthan the ARP cache time on switches
Incorrect STP settings
Incorrect switch groups settings (in particular, when theIDsof switch groups for the receiving and sending
traffic are different).
Theunicast-floodprocess on devicesis the following: if the frame's destination MAC-address is not included in
theunit'sMAC switch forwarding table, then this frame isflooded to allinterfacesbesides the sender interface.The
distribution occurs until the unit receives a frame with this MAC-address as the sender (i.e., the interface to which
the framewasdestinated to respond). After that, the device will learn: it willaddthis MAC address to theMAC
switch forwarding tableandmapit with the interface from which it was received. If the device does not learn in 4
seconds, and frames still arrive, then traffic to this direction will be blocked for 4 seconds. Then the process repeats.
This process has the following representation in the unit's interfaces and linksgraphs:
113 Figure - Unicast-flood example in the interfaces graphs
Also, unicast-flooding can be detected in the "Switch Statistics" →"Device Status" tab in "Flood" column: