Ciscoコマンド集/S/spanning-tree forward-time    スパニングツリーのForward Delay（転送遅延）値を設定する

spanning-tree forward-time

機種

Switch(K)

モード

Global(M)

デフォルト

ForwardTimerのデフォルト値は15(秒)

IOS

12.0(7)XE

試験レベル

BCMSN

構文

spanning-tree vlan [vlan-id] forward-time [秒]

使用例

Switch#show spanning-tree

VLAN0001
  Spanning tree enabled protocol ieee
  Root ID    Priority    1
             Address     000c.8589.ba80
             This bridge is the root
             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec

  Bridge ID  Priority    1      (priority 0 sys-id-ext 1)
             Address     000c.8589.ba80
             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec
             Aging Time 300

Interface        Role Sts Cost      Prio.Nbr Type
---------------- ---- --- --------- -------- --------------------------------
Fa0/1            Desg FWD 19        128.1    Edge P2p
Fa0/21           Desg FWD 19        128.21   P2p
Fa0/22           Desg FWD 19         80.22   Edge P2p
Po1              Desg FWD 12        128.65   P2p

Switch#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
Switch(config)#spanning-tree vlan 1 forward-time ?
  <4-30>  number of seconds for the forward delay timer

Switch(config)#spanning-tree vlan 1 forward-time 7
Switch(config)#end
Switch#show spanning-tree

VLAN0001
  Spanning tree enabled protocol ieee
  Root ID    Priority    1
             Address     000c.8589.ba80
             This bridge is the root
             Hello Time   2 sec  Max Age 20 sec  Forward Delay  7 sec

  Bridge ID  Priority    1      (priority 0 sys-id-ext 1)
             Address     000c.8589.ba80
             Hello Time   2 sec  Max Age 20 sec  Forward Delay  7 sec
             Aging Time 300

Interface        Role Sts Cost      Prio.Nbr Type
---------------- ---- --- --------- -------- --------------------------------
Fa0/1            Desg FWD 19        128.1    Edge P2p
Fa0/21           Desg FWD 19        128.21   P2p
Fa0/22           Desg FWD 19         80.22   Edge P2p
Po1              Desg FWD 12        128.65   P2p

Switch#

解説

スパニングツリーのタイマであるForward Delay（転送遅延）値を設定します。
デフォルトの値は15秒。4〜30秒のあいだで設定することができます。

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参考リンク

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タグ

STP