3Com 3824 Implementation Guide - Page 40

Port 1 of Bridges B, C, X and Y have been defined as Root Ports, Because Bridge A is the Root Bridge

Get 3Com 3824 - SuperStack 3 Switch PDF manuals and user guides
UPC - 662705467528
View all 3Com 3824 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 40 highlights

40 CHAPTER 4: USING RESILIENCE FEATURES Figure 11 Port costs in a network ■ Bridge A has the lowest Bridge Identifier in the network, and has therefore been selected as the Root Bridge. ■ Because Bridge A is the Root Bridge, it is also the Designated Bridge for LAN segment 1. Port 1 on Bridge A is therefore selected as the Designated Bridge Port for LAN Segment 1. ■ Port 1 of Bridges B, C, X and Y have been defined as Root Ports because they are the nearest to the Root Bridge and therefore have the most efficient path. ■ Bridges B and X offer the same Root Path Cost for LAN segment 2, however, Bridge B has been selected as the Designated Bridge for the segment because it has a lower Bridge Identifier. Port 2 on Bridge B is therefore selected as the Designated Bridge Port for LAN Segment 2.

  • 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
40
C
HAPTER
4: U
SING
R
ESILIENCE
F
EATURES
Figure 11
Port costs in a network
■
Bridge A has the lowest Bridge Identifier in the network, and has
therefore been selected as the Root Bridge.
■
Because Bridge A is the Root Bridge, it is also the Designated Bridge
for LAN segment 1. Port 1 on Bridge A is therefore selected as the
Designated Bridge Port for LAN Segment 1.
■
Port 1 of Bridges B, C, X and Y have been defined as Root Ports
because they are the nearest to the Root Bridge and therefore have
the most efficient path.
■
Bridges B and X offer the same Root Path Cost for LAN segment 2,
however, Bridge B has been selected as the Designated Bridge for the
segment because it has a lower Bridge Identifier. Port 2 on Bridge B is
therefore selected as the Designated Bridge Port for LAN Segment 2.