Smc-networks SMC TigerStack II SMC6624M Manual de usuario Pagina 104

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6-12
Optimizing Port Usage Through Traffic Control and Port Trunking
Port Trunking
Optimizing Port Usage
Through Traffic Control and
Table 6-4. Trunk Configuration Protocols
Protocol Trunking Options
LACP
(802.3ad)
Provides dynamic and static LACP trunking options.
Dynamic LACP — Use the switch-negotiated dynamic LACP trunk when:
The port on the other end of the trunk link is configured for Active or Passive LACP.
You want to achieve fault-tolerance for high-availability applications where you want a four-link trunk
with one or more standby links available in case an active link goes down. (Both ends of the link must
be dynamic LACP.)
Static LACP — Use the manually configured static LACP trunk when:
The port on the other end of the trunk link is configured for a static LACP trunk
You want to configure non-default spanning tree (STP) or IGMP parameters on an LACP trunk group.
You want an LACP trunk group to operate in a VLAN other than the default VLAN and GVRP is disabled.
You want to use a monitor port on the switch to monitor an LACP trunk.
See “Trunk Group Operation Using LACP” on page 6-23.
Trunk
(non-
protocol)
Provides manually configured, static-only trunking to:
Most switches and routing switches not running the 802.3ad LACP protocol.
Windows NT and Unix workstations and servers
Use the Trunk option when:
The device to which you want to create a trunk link is using a non-802.3ad trunking protocol
You are unsure which type of trunk to use, or the device to which you want to create a trunk link is
using an unknown trunking protocol.
You want to use a monitor port on the switch to monitor traffic on a trunk.
See “Trunk Group Operation Using the “Trunk” Option” on page 6-26.
FEC Provides static trunking to forwarding devices that also support FEC (Fast
EtherChannel
®
), such as some Cisco
®
switches and routers, and some Unix and Windows NT servers.
See “Trunk Operation Using the FEC Option” on page 6-26.
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