HP 5300 Informacje Techniczne Strona 218

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Port Trunking
Series 5300XL Switches Port Trunk Features and Operation
Series 5300XL Switches Port Trunk
Features and Operation
The Series 5300XL Switches offer these options for port trunking:
LACP (IEEE 802.3ad—page 12-18)
Trunk (non-protocol—page 12-24)
FEC (Fast EtherChannel®—page 12-25)
The switch supports up to 36 trunk groups. (Using the Link Aggregation
Control Protocol—LACP—option, you can include standby trunked ports in
addition to the maximum of eight actively trunking ports.)
LACP Note LACP requires full-duplex (FDx) links of the same media type (10/100Base-T,
100FX, etc.) and the same speed, and enforces speed and duplex conformance
across a trunk group. For most installations, HP recommends that you leave
the port Mode settings at Auto (the default). LACP also operates with Auto-10,
Auto-100, and Auto-1000 (if negotiation selects FDx), and 10FDx, 100FDx, and
1000FDx settings.
Fault Tolerance: If a link in a port trunk fails, the switch redistributes
traffic originally destined for that link to the remaining links in the trunk. The
trunk remains operable as long as there is at least one link in operation. If a
link is restored, that link is automatically included in the traffic distribution
again. The LACP option also offers a standby link capability, which enables
you to keep links in reserve for service if one or more of the original active
links fails. See
“Trunk Group Operation Using LACP” on page 12-18.)
Trunk Configuration Methods
Dynamic LACP Trunk: The switch automatically negotiates trunked links
between LACP-configured ports on separate devices, and offers one dynamic
trunk option: LACP. To configure the switch to initiate a dynamic LACP trunk
with another device, use the interface command in the CLI to set the default
LACP option to Active on the ports you want to use for the trunk. For example,
the following command sets ports C1-C4 to LACP active:
12-4
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