Enterasys 5C105 Guide d'installation télécharger pdf (Page 23)

Port Trunking

1-5

1.3 PORT TRUNKING

Port Trunking is used for load balancing or load sharing. Port Trunking provides a mechanism to

group, or aggregate, multiple links of any technology together to scale the backbone bandwidth

beyond the limitations of a single link. All links are user-configurable so administrators can scale

the backbone bandwidth by adding Port Trunking. The benefits of Port Trunking include the

following:

• All purchased bandwidth is used.

• Distributed, resilient links increase reliability and performance.

• Multiple technologies are supported within a single trunk for maximum flexibility.

1.4 REMOTE MONITORING (RMON)

The module supports the 1, 2, 3, and 4 Ethernet RMON groups. The Statistics, Alarms, Events,

and History groups are enabled on all ports by default.

The Enterasys Networks RMON Actions is a vendor-specific extension of RMON and provides

the ability to set an “Action” on any SNMP MIB variable. The Action can be triggered by any

RMON Event and/or Alarm. An example of an Action would be to turn off a MIB-2 interface if a

broadcast threshold is crossed.

1.5 PORT/VLAN REDIRECT FUNCTION

The port redirect function, also referred to as “Port Mirroring,” is a troubleshooting tool used to

map traffic from a single source port to a single destination port within the module. This feature

allows frames, including those with errors, to be copied and sent to an analyzer or RMON probe.

The analyzer or RMON probe will see the data as if it were directly connected to the LAN segment

of the source port.

The VLAN redirect function is similar to the port redirect function except that the frames received

by the module are redirected to a designated destination port according to the VLAN classification

of the frames received. Multiple VLANs can be directed to the same destination port. The VLAN

redirect function is only supported when the module is operating as an 802.1Q switch.

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Enterasys 5C105 Guide d'installation Page 23