云南龙网

  1. 首页 > 云知道 > >

交换机专题2

云知道


Configuring the VLAN on Catalyst 2900/3500 XL, 2950, and 3550 Series Switches
Step 1 Before you create VLANs, you must decide whether to useVTP in your network. Using VTP, you can make configuration changes centrally on a single switch, and have those changes automatically communicated to all the other switches in the network. The default VTP mode on the switches mentioned in this section is the server mode.
For details on VTP, refer to Understanding and Configuring VLAN Trunk Protocol
You can check the VTP status on the XL Series Switches, by using the show vtp status command.
3524XL#show vtp status
VTP Version : 2
Configuration Revision : 0
Maximum VLANs supported locally : 254
Number of existing VLANs : 5
VTP Operating Mode : Server!-- This is the default mode
VTP Domain Name :
VTP Pruning Mode : Disabled
VTP V2 Mode : Disabled
VTP Traps Generation : Disabled
MD5 digest : 0xBF 0x86 0x94 0x45 0xFC 0xDF 0xB5 0x70
Configuration last modified by 0.0.0.0 at 0-0-00 00:00:00
Step 2 By default, there is only a single VLAN for all ports, and this VLAN is called the default. VLAN1 cannot be renamed or deleted. You can run show vlan command to check the VLAN information.
3524XL#show vlan
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Fa0/1, Fa0/2, Fa0/3, Fa0/4,
Fa0/5, Fa0/6, Fa0/7, Fa0/8,
Fa0/9, Fa0/10, Fa0/11, Fa0/12,
Fa0/13, Fa0/14, Fa0/15, Fa0/16,
Fa0/17, Fa0/18, Fa0/19, Fa0/20,
Fa0/21, Fa0/22, Fa0/23, Fa0/24,
Gi0/1, Gi0/2
1002 fddi-default active
1003 token-ring-default active
1004 fddinet-default active
1005 trnet-default active
VLAN Type SAID MTU Parent RingNo BridgeNo Stp BrdgMode Trans1 Trans2
---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ------
1 enet 100001 1500 - - - - - 1002 1003
1002 fddi 101002 1500 - - - - - 1 1003
1003 tr 101003 1500 1005 0 - - srb 1 1002
1004 fdnet 101004 1500 - - 1 IBM - 0 0
1005 trnet 101005 1500 - - 1 IBM - 0 0
3524XL#
Use the following set of commands in the privileged mode to create another VLAN:
3524XL#vlan database!-- You have to enter into vlan database, to configure any VLAN
3524XL(vlan)#vtp server
Device mode already VTP SERVER.
!-- You may skip the above command, if the switch is already in server mode,
and you want the switch to be in server mode
Note: A switch is only allowed to create VLANs if it is in VTP server or VTP transparent modes. For details on VTP, please refer to the Understanding and Configuring VLAN Trunk Protocol (VTP) document.
3524XL(vlan)#vlan ?
ISL VLAN index
3524XL(vlan)#vlan 2 ?
are Maximum number of All Route EXPlorer hops for this VLAN
backupcrf Backup CRF mode of the VLAN
bridge Bridging characteristics of the VLAN
media Media type of the VLAN
mtu VLAN Maximum Transmission Unit
name Ascii name of the VLAN
parent ID number of the Parent VLAN of FDDI or Token Ring type VLANs
ring Ring number of FDDI or Token Ring type VLANs
said IEEE 802.10 SAID
state Operational state of the VLAN
ste Maximum number of Spanning Tree Explorer hops for this VLAN
stp Spanning tree characteristics of the VLAN
tb-vlan1 ID number of the first translational VLAN for this VLAN (or zero
if none)
tb-vlan2 ID number of the second translational VLAN for this VLAN (or zero
if none)

3524XL(vlan)#vlan 2 name ?
Word The ASCII name for the VLAN
3524XL(vlan)#vlan 2 name cisco_vlan_2
VLAN 2 added:
Name: cisco_vlan_2
3524XL(vlan)#exit!
-- You have to exit from the VLAN database, for the changes to be committed
APPLY completed.

推荐阅读


上一篇：穿牛仔裤过安检门会响吗

下一篇：洗甲水成分是什么