User`s manual

NPort S8000 Series Switch Featured Functions
6-3
MDI/MDIX
Setting Description Factory Default
Auto Allows the port to auto detect the port type of the opposing
Ethernet device and change the port type accordingly.
Auto
MDI
Choose the MDI or MDIX option if the opposing Ethernet device
has trouble auto-negotiating port type.
MDIX
Port Trunking
Using Port Trunking
Link Aggregation allows one or more links to be aggregated together to form a Link Aggregation Group. A MAC
client can treat Link Aggregation Groups as if they were a single link.
NPort S8000’s Port Trunking feature allows devices to communicate by aggregating up to 2 trunk groups on the
NPort S8000. If one of the ports fails, the other ports in the same trunk group will provide back up and share
the traffic automatically.
The Port Trunking Concept
Moxa has developed a proprietary Port Trunking protocol that provides the following benefits:
• Gives you more flexibility in setting up your network connections, since the bandwidth of a link can be
doubled, tripled, or quadrupled.
• Provides redundancy—if one link is broken, the remaining trunked ports share the traffic within this trunk
group.
• Load sharing—MAC Client traffic may be distributed across multiple links.
• To avoid broadcast storms or loops in your network while configuring a trunk, first disable or disconnect all
ports that you want to add to the trunk or remove from the trunk. After you finish configuring the trunk,
enable or re-connect the ports.
If all ports on both switches are configured as 100BASE-TX and they are operating in full duplex, the potential
bandwidth of the connection will be up to 1 Gbps on an NPort S8000- switching device server. This means that
users can connect one NPort S8000 to another NPort S8000 by port trunking to double, triple, or quadruple the
bandwidth of the connection.
When configuring Port Trunking, note that:
Each NPort S8000 can set a maximum of 2 Port Trunking groups (designated Trk1, Trk2).
When you activate Port Trunking settings, some advanced functions that you setup with the original ports will
either be set to factory default values, or disabled:
• Communication Redundancy will be set to the factory default
• Traffic Prioritization will be set to the factory default
• Port-based VLAN or 802.1Q VLAN will be set to the factory default
• Multicast Filtering will be set to the factory default
• Rate Limiting will be set to the factory default
• Port Access Control will be set to the factory default
• Email and Relay Warning will be set to the factory default
• Set Device IP will be set to the factory default
• Mirror Port will be set to the factory default
• You can setup these features again on your Trunking Port.