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3-12-3. STP Port Configuration
Function name:
STP Port Setting
Function description:
In the STP Port Setting, one item selection and five
parameters settings are
offered for user’s setup. User can disable and enable each port by selecting
each Port Status item. User also can set “Path Cost” and “Priority” of each port
by filling in the desired value and set “Admin Edge Port” and “Admin Point To
Point” by selecting the desired item.
Parameter description:
Port Status:
It displays the current state of a port. We cannot manually set it because
it displays the status only. There are three possible states. ( according to
802.1w specification)
DISCARDING state indicates that this port can neither forward
packets nor contribute learning knowledge.
Notice: Three other states (Disable state, BLOCKING state and LISTENING
state) defined in the 802.1d specification are now all represented as
DISCARDING state.
LEARNING state indicates this port can now contribute its
learning knowledge but cannot forward packets still.
FORWARDING state indicates this port can both contribute its
learning knowledge and forward packets normally.
Path Cost Status:
It is the contribution value of the path through this port to Root Bridge.
STP algorithm determines a best path to Root Bridge by calculating the
sum of path cost contributed by all ports on this path. A port with a
smaller path cost value would become the Root Port more possibly.
Configured Path Cost:
The range is 0 – 200,000,000. In the switch, if path cost is set to be zero,
the STP will get the recommended value resulted from auto-negotiation
of the link accordingly and display this value in the field of Path Cost
Status. Otherwise, it may show the value that the administrator set up in
Configured Path Cost and Path Cost Status.
Содержание L2 Plus
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Страница 108: ...52 Fig 3 54 Set up Typical Network Application Rules Finish Fig 3 55 Set up Typical Network Application Rules Finish...
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Страница 124: ...68 Fig 3 78 ARP Fig 3 79 ARP Fig 3 80 ARP Fig 3 81 ARP...
Страница 125: ...69 Fig 3 82 ARP Fig 3 83 ARP Fig 3 84 ARP Fig 3 85 ARP Fig 3 86 ARP...
Страница 126: ...70 Fig 3 87 IPv4 Fig 3 88 IPv4 Fig 3 89 IPv4...
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Страница 134: ...78 Fig 3 115 IPv4 Fig 3 116 IPv4 Fig 3 117 Action...
Страница 135: ...79 Fig 3 118 Rate Limiter Fig 3 119 Port Copy...
Страница 136: ...80 Fig 3 120 DMAC Filter Fig 3 121 VLAN ID Filter Fig 3 122 VLAN ID Filter...
Страница 148: ...92 Fig 3 125 Set up Policy Rules Fig 3 126 Set up Policy Rules Fig 3 127 Set up Policy Rules...
Страница 149: ...93 Fig 3 128 Set up Policy Rules Finish Fig 3 129 Set up Port Policies Fig 3 130 Set up Port Policies...
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Страница 151: ...95 Fig 3 133 Set up Typical Network Application Rules Fig 3 134 Set up Typical Network Application Rules...
Страница 164: ...108 Fig 3 143 802 1X Server Configuration...
Страница 168: ...112 Fig 3 145 802 1X Status...
Страница 194: ...138 Fig 3 161 Mirror Configuration...
Страница 214: ...158 Fig 4 1 Fig 4 2 LGB1005A R2 LGB1005A R2 LGB1005A R2 LGB1005A R2...
