RTS DV-3400 Technical Information PDF herunterladen (Seite 296)

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101

Port Trunking

Port Trunk Features and Operation

The switches covered by this guide offer these options for port trunking:

■ LACP: IEEE 802.3ad—page 13-18

■ Trunk: Non-Protocol—page 13-24

The number of trunk groups supported on a given switch depends on the

switch model and the number of ports physically available on the switch. The

maximum theoretical bandwidths shown below are based on full-duplex

operation.

Trunk Port Count 5300 1-Gig Links 3400/6400 Gig & 10-Gig

1-Gig Links 10-Gig Links

2 Up to 4 Gbs Up to 4 Gbs Up to 40 Gbs

3 6 6 60

4 8 8 80

5 8** 10 N/A*

6 8** 12 N/A*

7 8** 14 N/A*

8 8** 16 N/A*

*Although the 6400 can theoretically support an 8-port trunk, anything over 4 ports would not be practical because

the trunk bandwidth capacity with 5 or more ports would exceed the bandwidth capacity of the remaining non-

trunk ports. In any case, 80 Gbs is the theoretical maximum bandwidth for the 6400 switches.

** The maximum theoretical bandwidth for trunking on the 5300xl switches is 8 Gbs.

(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, ProCurve 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. (The 10-gigabit ports available for some switch models

allow only the Auto setting.)

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