3Com 3c17300 Implementation Guide - Page 26

speed links carry the traffic. The lower speed links only carry

Get 3Com 3c17300 PDF manuals and user guides View all 3Com 3c17300 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 26 highlights

28 CHAPTER 2: OPTIMIZING BANDWIDTH switched locally. This minimises traffic flowing across the interconnect and therefore enhances network performance. When setting up an aggregated link, note that: ■ The ports at both ends of a member link must be configured as members of an aggregated link, if you are manually configuring aggregated links. ■ A member link port can only belong to one aggregated link. ■ The member link ports can have different port configurations within the same aggregated link, that is, auto-negotiation, port speed, and duplex mode. However, please note the following: ■ To be an active participant in an aggregated link the member link ports must operate in full duplex mode. (If a member link port does not operate in full duplex mode it can still be a member of an aggregated link but it will never be activated.) ■ If ports of a different speed are aggregated together, the higher speed links carry the traffic. The lower speed links only carry the traffic if the higher speed links fail. ■ Member links must retain the same groupings at both ends of an aggregated link. For example, the configuration in Figure 4 will not work as Switch A has one aggregated link defined whose member links are then split between two aggregated links defined on Switches B and C. Note that this illegal configuration could not occur if LACP is enabled.

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
28
C
HAPTER
2: O
PTIMIZING
B
ANDWIDTH
switched locally. This minimises traffic flowing across the interconnect
and therefore enhances network performance.
When setting up an aggregated link, note that:
■
The ports at both ends of a member link must be configured as
members of an aggregated link, if you are manually configuring
aggregated links.
■
A member link port can only belong to one aggregated link.
■
The member link ports can have different port configurations within
the same aggregated link, that is, auto-negotiation, port speed, and
duplex mode. However, please note the following:
■
To be an active participant in an aggregated link the member link
ports must operate in full duplex mode. (If a member link port does
not operate in full duplex mode it can still be a member of an
aggregated link but it will never be activated.)
■
If ports of a different speed are aggregated together, the higher
speed links carry the traffic. The lower speed links only carry the
traffic if the higher speed links fail.
■
Member links must retain the same groupings at both ends of an
aggregated link. For example, the configuration in
Figure 4
will not
work as Switch A has one aggregated link defined whose member
links are then split between two aggregated links defined on Switches
B and C. Note that this illegal configuration could not occur if LACP is
enabled.