在執行CatOS的Catalyst 5000/6000交換器之間設定ISL中繼

簡介

本檔案將提供執行Catalyst OS(CatOS)的Catalyst 5500和Catalyst 5000交換器之間的交換器間連結(ISL)上的組態範例。 在此案例中，可以使用任何執行CatOS的Catalyst 5000或6000系列成員來取得相同的結果。

簡而言之，中繼是一種通過兩台裝置之間的點對點鏈路傳輸來自多個VLAN的流量的方式。乙太網中繼的實施方式有兩種：

• ISL（思科專有交換器間連結通訊協定）

• 802.1Q（IEEE標準）

本文檔將只顯示交換機的配置檔案以及相關示例show命令的輸出。有關如何在Catalyst交換機之間配置ISL中繼的詳細資訊，請參閱在Catalyst 5500/5000和6500/6000系列交換機上配置ISL中繼。

必要條件

需求

本文件沒有特定需求。

採用元件

本文中的資訊係根據以下軟體和硬體版本：

• 執行Catalyst OS 6.1(1)軟體的Catalyst 5500交換器

• 執行Catalyst OS 6.1(1)軟體的Catalyst 5000交換器

本文中的資訊是根據特定實驗室環境內的裝置所建立。如果您的網路正在作用，請確保您已瞭解任何指令可能造成的影響。已使用clear config all和write erase命令清除所有裝置上的配置，以確保它們具有預設配置。

慣例

如需文件慣例的詳細資訊，請參閱思科技術提示慣例。

重要附註

運行CatOS的Catalyst 4000系列（包括Catalyst 2948G和Catalyst 2980G）僅支援802.1Q中繼，不支援ISL中繼。

Catalyst 6000系列成員上的任何乙太網埠都支援802.1Q和ISL封裝。

根據模組的不同，支援Catalyst 5000中繼的埠可能僅支援ISL封裝或ISL和802.1Q。驗證這一點的最佳方式是發出show port capabilities命令。中繼容量已明確說明。例如：

cat5000> show port capabilities 3

Model                    WS-X5225R
Port                     3/1
Type                     10/100BaseTX
Speed                    auto,10,100
Duplex                   half,full
Trunk encap type         802.1Q,ISL
Trunk mode               on,off,desirable,auto,nonegotiate
Channel                  3/1-2,3/1-4
Broadcast suppression    percentage(0-100)
Flow control             receive-(off,on),send-(off,on)
Security                 yes
Membership               static,dynamic
Fast start               yes
QOS scheduling           rx-(none),tx-(none)
CoS rewrite              yes
ToS rewrite              IP-Precedence
Rewrite                  no
UDLD                     yes
AuxiliaryVlan            1..1000,1025..4094,untagged,dot1p,none
SPAN                     source,destination

確保中繼鏈路上的中繼模式匹配。如果鏈路的一端配置為ISL中繼，則鏈路的另一端也應配置為ISL;同樣，如果鏈路的一端配置為802.1Q，鏈路的另一端也應配置為802.1Q。

設定

本節提供用於設定本文件中所述功能的資訊。

注意：要查詢有關本文檔中使用的命令的其他資訊，請使用命令查詢工具(僅限註冊客戶)。

網路圖表

本檔案會使用以下網路設定：

組態

本檔案會使用以下設定：

• Catalyst 5500

• Catalyst 5000

#version 6.1(1)
!
set option fddi-user-pri enabled
set password $2$q.J7$O5n.pwx7aEC6NHWJfXadx1
set enablepass $2$o.h/$bAxfjJ4XUA/RMUHqBr1YQ0
!
#errordetection
set errordetection portcounter enable
!
#system
set system name  cat5500
!
#frame distribution method
set port channel all distribution mac both
!
#vtp

!--- In this example, the VLAN Trunking Protocol (VTP) mode is set to be transparent. !--- Depending on your network, set the VTP mode accordingly.

set vtp mode transparent

!--- For details on VTP, refer to Configuring VTP.

set vlan 1 name default type ethernet mtu 1500 said 100001 state active
set vlan 1002 name fddi-default type fddi mtu 1500 said 101002 state active
set vlan 1004 name fddinet-default type fddinet mtu 1500 said 101004 state active stp ieee
set vlan 1005 name trnet-default type trbrf mtu 1500 said 101005 state active stp ibm
set vlan 2
set vlan 1003 name token-ring-default type trcrf mtu 1500 said 101003 state acti
ve mode srb aremaxhop 7 stemaxhop 7 backupcrf off
!
#ip

!--- IP address used for management.

set interface sc0 1 10.10.10.2/255.255.255.0 10.10.10.255
!
#set boot command
set boot config-register 0x2102
set boot system flash slot0:cat5000-sup3.6-1-1.bin
!
# default port status is enable
!
!
#module 1 empty
!
#module 2 : 2-port 1000BaseSX Supervisor
!
#module 3 empty
!
#module 4 : 24-port 10/100BaseTX Ethernet

!--- Ports 4/13-24 are assigned to VLAN 2.

set vlan 2 4/13-24

!--- The ISL trunking mode is set to on. !--- Depending on your network and requirements, set the trunking mode accordingly.

set trunk 4/1 on isl 1-1005

!--- For details on different trunking modes, refer to !--- Configuring VLAN Trunks on Fast Ethernet and Gigabit Ethernet Ports !--- Portfast has been enabled on the ports connected to the workstations.

set spantree portfast 4/2-24 enable

!--- For details on why to enable portfast, refer to !--- Using Portfast and Other Commands to Fix Workstation Startup Connectivity Delays 

!
#module 5 empty
!
#module 6 empty
!
#module 7 empty
!
#module 8 empty
!
#module 9 empty
!
#module 10 empty
!
#module 11 empty
!
#module 12 empty
!
#module 13 empty
end

#Version 6.1(1)
!
set option fddi-user-pri enabled
set password $2$J75L$Ug4163kfeHTDcLJZ/L9es1
set enablepass $2$h/BN$i3S54iNvIXknFelh6gOve0
!
#errordetection
set errordetection portcounter enable
!
#system
set system name  cat5000
!
#frame distribution method
set port channel all distribution Mac both
!
#vtp

!--- In this example, the VTP mode is set to be transparent. !--- Depending on your network and requirements, set the VTP mode accordingly.

set vtp mode transparent

!--- For details on VTP, refer to Configuring VTP.

set vlan 1 name default type ethernet mtu 1500 said 100001 state active
set vlan 1002 name fddi-default type fddi mtu 1500 said 101002 state active
set vlan 1004 name fddinet-default type fddinet mtu 1500 said 101004 state active stp IEEE
set vlan 1005 name trnet-default type trbrf mtu 1500 said 101005 state active stp IBM
set vlan 2
set vlan 1003 name token-ring-default type trcrf mtu 1500 said 101003 state acti
ve mode srb aremaxhop 7 stemaxhop 7 backupcrf off
!
#ip

!--- IP address used for management.

set interface sc0 1 10.10.10.3/255.255.255.0 10.10.10.255
!
#set boot command
set boot config-register 0x2102
set boot system flash slot0:cat5000-sup3.6-1-1.bin
!
# default port status is enable
!
!
#module 1 : 0-port Supervisor III
!
#module 2 : 12-port 10/100BaseTX Ethernet
!
#module 3 : 24-port 10/100BaseTX Ethernet

!--- Ports 3/13-24 have been assigned to VLAN 2.

set vlan 2 3/13-24

!--- The ISL trunking mode is set to on. !--- Depending on your network and requirements, set the trunking mode accordingly.

set trunk 3/1 on isl 1-1005

!--- For details on different trunking modes, refer to !--- Configuring VLAN Trunks on Fast Ethernet and Gigabit Ethernet Ports !--- Portfast has been enabled on the ports connected to the workstations.

set spantree portfast 3/2-24 enable

!--- For details on why to enable portfast, refer to !--- Using Portfast and Other Commands to Fix Workstation Startup Connectivity Delays 

!
!
#module 4 : 24-port 10/100BaseTX Ethernet
!
#module 5 : 12-port 10BaseFL Ethernet
end

驗證

本節提供的資訊可用於確認您的組態是否正常運作。

Output Interpreter Tool(僅限註冊客戶)支援某些show命令，特別是show tech-support，此工具可讓您檢視show命令輸出的分析。

Catalyst 5500交換器

show port capabilities module/port — 發出此命令以驗證連線埠是否可建立主幹。

cat5500> (enable)  show port capabilities 4/1

Model                    WS-X5234
Port                     4/1
Type                     10/100BaseTX
Speed                    auto,10,100
Duplex                   half,full
Trunk encap type         802.1Q,ISL
Trunk mode               on,off,desirable,auto,nonegotiate
Channel                  4/1-2,4/1-4
Broadcast suppression    percentage(0-100)
Flow control             receive-(off,on),send-(off,on)
Security                 yes
Membership               static,dynamic
Fast start               yes
QOS scheduling           rx-(none),TX(1q4t)
COs rewrite              yes
ToS rewrite              IP-Precedence
Rewrite                  no
UDLD                     yes
AuxiliaryVlan            1..1000,1025..4094,untagged,dot1p,none
SPAN                     source,destination

show port module/port — 發出此命令，以確定特定連線埠的狀態及其是否為主幹。

cat5500> (enable) show port 4/1

Port  Name               Status     Vlan       Level  Duplex Speed Type
----- ------------------ ---------- ---------- ------ ------ ----- ------------
 4/1                     connected  trunk      normal a-full a-100 10/100BaseTX

Port  AuxiliaryVlan AuxVlan-Status
----- ------------- --------------
 4/1  none          none

Port  Security Violation Shutdown-Time Age-Time Max-Addr Trap     IfIndex
----- -------- --------- ------------- -------- -------- -------- -------
 4/1  disabled  shutdown             0        0        1 disabled      11

Port  Num-Addr Secure-Src-Addr   Age-Left Last-Src-Addr     Shutdown/Time-Left
----- -------- ----------------- -------- ----------------- ------------------
 4/1         0                 -        -                 -        -         -

!--- Output suppressed.

show trunk — 發出此命令以驗證中繼狀態和配置。

cat5500> (enable) show trunk

* - indicates vtp domain mismatch
Port      Mode         Encapsulation  Status        Native vlan
--------  -----------  -------------  ------------  -----------
4/1      on           isl            trunking      1

Port      Vlans allowed on trunk
--------  ---------------------------------------------------------------------
 4/1      1-1005

Port      Vlans allowed and active in management domain
--------  ---------------------------------------------------------------------
 4/1      1-2

Port      Vlans in spanning tree forwarding state and not pruned
--------  ---------------------------------------------------------------------
 4/1      1-2

show vtp domain — 發出此命令檢查VTP資訊。

cat5500> (enable) show vtp domain

Domain Name                      Domain Index VTP Version Local Mode  Password
-------------------------------- ------------ ----------- ----------- ----------
                                 1            2           Transparent -

Vlan-count Max-vlan-storage Config Revision Notifications
---------- ---------------- --------------- -------------
6          1023             0               disabled

Last Updater    V2 Mode  Pruning  PruneEligible on Vlans
--------------- -------- -------- -------------------------
10.10.10.2      disabled disabled 2-1000

Catalyst 5000交換器

show port capabilities module/port — 發出此命令以驗證連線埠是否可建立主幹。

cat5000> (enable) show port capabilities 3/1

Model                    WS-X5225R
Port                     3/1
Type                     10/100BaseTX
Speed                    auto,10,100
Duplex                   half,full
Trunk encap type         802.1Q,ISL
Trunk mode               on,off,desirable,auto,nonegotiate
Channel                  3/1-2,3/1-4
Broadcast suppression    percentage(0-100)
Flow control             receive-(off,on),send-(off,on)
Security                 yes
Membership               static,dynamic
Fast start               yes
QOS scheduling           rx-(none),TX(none)
COs rewrite              yes
ToS rewrite              IP-Precedence
Rewrite                  no
UDLD                     yes
AuxiliaryVlan            1..1000,1025..4094,untagged,dot1p,none
SPAN                     source,destination

show port module/port — 發出此命令，以確定特定連線埠的狀態及其是否為主幹。

cat5000> (enable) show port 3/1

Port  Name               Status     Vlan       Level  Duplex Speed Type
----- ------------------ ---------- ---------- ------ ------ ----- ------------
 3/1                     connected  trunk      normal a-full a-100 10/100BaseTX

Port  AuxiliaryVlan AuxVlan-Status
----- ------------- --------------
 3/1  none          none

Port  Security Violation Shutdown-Time Age-Time Max-Addr Trap     IfIndex
----- -------- --------- ------------- -------- -------- -------- -------
 3/1  disabled  shutdown             0        0        1 disabled      57

!--- Output suppressed.

show trunk — 發出此命令以驗證中繼狀態和配置。

cat5000> (enable) show trunk

* - indicates vtp domain mismatch
Port      Mode         Encapsulation  Status        Native vlan
--------  -----------  -------------  ------------  -----------
 3/1      on           isl            trunking      1

Port      Vlans allowed on trunk
--------  ---------------------------------------------------------------------
 3/1      1-1005

Port      Vlans allowed and active in management domain
--------  ---------------------------------------------------------------------
 3/1      1-2

Port      Vlans in spanning tree forwarding state and not pruned
--------  ---------------------------------------------------------------------
 3/1      1-2

show vtp domain — 發出此命令檢查VTP資訊。

cat5000> (enable) show vtp domain

Domain Name                      Domain Index VTP Version Local Mode  Password
-------------------------------- ------------ ----------- ----------- ----------
                                 1            2           Transparent -

Vlan-count Max-vlan-storage Config Revision Notifications
---------- ---------------- --------------- -------------
6          1023             0               disabled

Last Updater    V2 Mode  Pruning  PruneEligible on Vlans
--------------- -------- -------- -------------------------
10.10.10.3      disabled disabled 2-1000

疑難排解

目前尚無適用於此組態的具體疑難排解資訊。

相關資訊

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