vlanの設定、削除

# 参考

* [Catalyst 2960 スイッチ ソフトウェア コンフィギュ レーション ガイド Rel. 12.2(40)SE - VLAN の設定 - Cisco Systems](http://www.cisco.com/cisco/web/support/JP/docs/SW/LANSWT-Access/CAT2960SWT/CG/005/swvlan.html?bid=0900e4b1825295c6#33560)

# やること

1. Gi0/21にvlan41を設定
2. Gi0/21にvlan41を解除
3. vlan41を削除

## 状態確認

```bash:vlan41がないことを確認。
2960G#show vlan

VLAN Name                             Status    Ports
---- -------------------------------- --------- -------------------------------
1    default                          active    Gi0/1, Gi0/2, Gi0/3, Gi0/4, Gi0/5
                                                Gi0/6, Gi0/7, Gi0/8, Gi0/9, Gi0/10
                                                Gi0/11, Gi0/12, Gi0/13, Gi0/14
                                                Gi0/15, Gi0/16, Gi0/17, Gi0/18
                                                Gi0/19, Gi0/20, Gi0/21, Gi0/22, Po1
1002 fddi-default                     act/unsup
1003 token-ring-default               act/unsup
1004 fddinet-default                  act/unsup
1005 trnet-default                    act/unsup

VLAN Type  SAID       MTU   Parent RingNo BridgeNo Stp  BrdgMode Trans1 Trans2
---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ------
1    enet  100001     1500  -      -      -        -    -        0      0
1002 fddi  101002     1500  -      -      -        -    -        0      0
1003 tr    101003     1500  -      -      -        -    -        0      0
1004 fdnet 101004     1500  -      -      -        ieee -        0      0
1005 trnet 101005     1500  -      -      -        ibm  -        0      0

Remote SPAN VLANs
------------------------------------------------------------------------------


Primary Secondary Type              Ports
------- --------- ----------------- ------------------------------------------
```

## 1. Gi0/21にvlan41を設定

```bash:vlan41にGi0/21を追加
2960G#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
2960G(config)#interface Gi0/21
2960G(config-if)#switchport access vlan 41
% Access VLAN does not exist. Creating vlan 41
2960G(config-if)#^Z
```

```diff:vlan41にGi0/21が追加されたことを確認
  2960G#show vlan
  
  VLAN Name                             Status    Ports
  ---- -------------------------------- --------- -------------------------------
  1    default                          active    Gi0/1, Gi0/2, Gi0/3, Gi0/4, Gi0/5
                                                  Gi0/6, Gi0/7, Gi0/8, Gi0/9, Gi0/10
                                                  Gi0/11, Gi0/12, Gi0/13, Gi0/14
                                                  Gi0/15, Gi0/16, Gi0/17, Gi0/18
                                                  Gi0/19, Gi0/20, Gi0/22, Po1
+ 41   VLAN0041                         active    Gi0/21
  1002 fddi-default                     act/unsup
  1003 token-ring-default               act/unsup
  1004 fddinet-default                  act/unsup
  1005 trnet-default                    act/unsup
  
  VLAN Type  SAID       MTU   Parent RingNo BridgeNo Stp  BrdgMode Trans1 Trans2
  ---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ------
  1    enet  100001     1500  -      -      -        -    -        0      0
+ 41   enet  100041     1500  -      -      -        -    -        0      0
  1002 fddi  101002     1500  -      -      -        -    -        0      0
  1003 tr    101003     1500  -      -      -        -    -        0      0
  1004 fdnet 101004     1500  -      -      -        ieee -        0      0
  1005 trnet 101005     1500  -      -      -        ibm  -        0      0
  
  Remote SPAN VLANs
  ------------------------------------------------------------------------------
  
  
  Primary Secondary Type              Ports
  ------- --------- ----------------- ------------------------------------------
```

## 2. Gi0/21にvlan41を解除


```bash:vlan41からGi0/21を解除
2960G#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
2960G(config)#interface Gi0/21
2960G(config-if)#no switchport access vlan 41
2960G(config-if)#^Z
```

```diff:vlan確認
  2960G#show vlan
  
  VLAN Name                             Status    Ports
  ---- -------------------------------- --------- -------------------------------
  1    default                          active    Gi0/1, Gi0/2, Gi0/3, Gi0/4, Gi0/5
                                                  Gi0/6, Gi0/7, Gi0/8, Gi0/9, Gi0/10
                                                  Gi0/11, Gi0/12, Gi0/13, Gi0/14
                                                  Gi0/15, Gi0/16, Gi0/17, Gi0/18
                                                  Gi0/19, Gi0/20, Gi0/21, Gi0/22, Po1
+ 41   VLAN0041                         active
  1002 fddi-default                     act/unsup
  1003 token-ring-default               act/unsup
  1004 fddinet-default                  act/unsup
  1005 trnet-default                    act/unsup
  
  VLAN Type  SAID       MTU   Parent RingNo BridgeNo Stp  BrdgMode Trans1 Trans2
  ---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ------
  1    enet  100001     1500  -      -      -        -    -        0      0
+ 41   enet  100041     1500  -      -      -        -    -        0      0
  1002 fddi  101002     1500  -      -      -        -    -        0      0
  1003 tr    101003     1500  -      -      -        -    -        0      0
  1004 fdnet 101004     1500  -      -      -        ieee -        0      0
  1005 trnet 101005     1500  -      -      -        ibm  -        0      0
  
  Remote SPAN VLANs
  ------------------------------------------------------------------------------
  
  
  Primary Secondary Type              Ports
  ------- --------- ----------------- ------------------------------------------
```

## 3. vlan41を削除

```bash:vlan41の削除
2960G#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
2960G(config)#no vlan 41
2960G(config)#no int Vlan41
2960G(config)#^Z
```

## 確認

```bash:確認
2960G#show vlan

VLAN Name                             Status    Ports
---- -------------------------------- --------- -------------------------------
1    default                          active    Gi0/1, Gi0/2, Gi0/3, Gi0/4, Gi0/5
                                                Gi0/6, Gi0/7, Gi0/8, Gi0/9, Gi0/10
                                                Gi0/11, Gi0/12, Gi0/13, Gi0/14
                                                Gi0/15, Gi0/16, Gi0/17, Gi0/18
                                                Gi0/19, Gi0/20, Gi0/21, Gi0/22, Po1
1002 fddi-default                     act/unsup
1003 token-ring-default               act/unsup
1004 fddinet-default                  act/unsup
1005 trnet-default                    act/unsup

VLAN Type  SAID       MTU   Parent RingNo BridgeNo Stp  BrdgMode Trans1 Trans2
---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ------
1    enet  100001     1500  -      -      -        -    -        0      0
1002 fddi  101002     1500  -      -      -        -    -        0      0
1003 tr    101003     1500  -      -      -        -    -        0      0
1004 fdnet 101004     1500  -      -      -        ieee -        0      0
1005 trnet 101005     1500  -      -      -        ibm  -        0      0

Remote SPAN VLANs
------------------------------------------------------------------------------


Primary Secondary Type              Ports
------- --------- ----------------- ------------------------------------------
```

# その他確認コマンド

```bash:
show interfaces port-channel 1 switchport
show interfaces trunk
show spanning-tree vlan 1

show etherchannel protocol
show etherchannel load-balance
show etherchannel detail
```