在CatOS交換機和外部路由器之間配置FEC和ISL/802.1q中繼
簡介
本檔案將提供執行CatalystOS(CatOS)的Catalyst 6500交換器和Cisco 7500路由器之間的快速EtherChannel(FEC)、交換器間連結(ISL)和802.1Q主幹設定的範例。每個命令的結果在執行時顯示。雖然此組態中使用的是Catalyst 6000交換器，但您可以取代執行CatOS的Catalyst 4000或Catalyst 5000系列交換器。
必要條件
需求
嘗試此組態之前，請確保符合以下要求：
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Catalyst 6000 系列交換器
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需要CatOS 5.1(1)CSX或更高版本才能支援EtherChannel
-
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Cisco 7000或7500系列路由器
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採用7000系列路由交換處理器(RSP7000)或機箱介面(RSP7000CI)的Cisco 7000系列路由器，或採用快速乙太網路介面處理器(FEIP)或多功能介面處理器(VIP2)連線埠配接器的思科7500系列路由器
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如果您使用的是PA-2FEISL埠介面卡，則必須具有硬體版本1.2或更高版本。
請參閱現場通知：*已過期* FN - 8791_11301999 - PA-2FEISL 2埠快速乙太網ISL更換建議以瞭解詳細資訊。
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encapsulation dot1Q native命令是在Cisco IOS®軟體版本12.1(3)T中匯入。此命令會變更組態。
如需詳細資訊，請參閱本檔案的Cisco 7500 802.1Q組態Cisco IOS軟體版本12.1(3)T之前的版本。
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思科7500系列路由器上預設啟用思科快速轉發。但是，在Cisco IOS軟體版本12.2和12.2T之前，對IEEE 802.1Q VLAN之間IP路由的Cisco快速轉發支援不可用。在以前的版本中仍可以配置802.1Q封裝，但您必須首先發出global no ip cef命令以禁用Cisco Express Forwarding。
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當7500系列路由器配置為多協定標籤交換(MPLS)和FEC時，對於從MPLS介面流到FEC介面的路由(MPLS " IP)資料包目前不支援此功能。因此，不建議在單個路由器上同時存在MPLS和FEC配置。
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支援EtherChannel需要Cisco IOS軟體版本11.1(14)CA或更高版本。
支援ISL中繼需要Cisco IOS軟體版本11.3(1)T（任何加功能集）或更高版本。
支援IEEE 802.1Q中繼需要Cisco IOS軟體版本12.0(1)T（任何加功能集）或更高版本。
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採用元件
本文中的資訊係根據以下軟體和硬體版本：
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執行CatOS版本5.5.14的Catalyst 6500
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執行Cisco IOS軟體版本12.2.7b的Cisco 7500
本文中的資訊是根據特定實驗室環境內的裝置所建立。文中使用到的所有裝置皆從已清除（預設）的組態來啟動。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。
重要附註
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請記住，Catalyst 4000系列交換機不支援ISL中繼。此外，Catalyst 5000系列交換器上的某些交換模組不支援EtherChannel。發出show port capabilities 模組命令，以確定特定模組是否支援EtherChannel及其支援的中繼封裝。
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EtherChannel和中繼的配置遵循特定准則。請一律參閱交換器的軟體檔案。
例如，如果您在Catalyst 5000上執行軟體版本5.5.x，請參閱軟體組態設定指南(5.5)，並仔細檢查設定Fast EtherChannel和Gigabit EtherChannel一節中的任何組態原則及限制。
乙太通道
FEC或Gigabit EtherChannel(GEC)功能允許將多個點對點連結捆綁到單一邏輯連結中。Catalyst 6000最多支援八個全雙工模式埠，為FEC提供1600 Mbps或1.6 Gbps的吞吐量，為GEC提供16 Gbps的吞吐量。Cisco 7500系列支援每個FEC最多四個埠，速度為800 Mbps。EtherChannel的功能和效能不同，具體取決於交換機或路由器。如需詳細資訊，請參閱在Catalyst交換器上實作EtherChannel的系統要求。
EtherChannel在所有鏈路上分配流量，並在一個或多個鏈路發生故障時提供冗餘。如需與EtherChannel相關的詳細資訊和組態範例，請參閱瞭解Catalyst交換器上的EtherChannel負載平衡和備援 
。
如需詳細資訊，請參閱Cisco技術支援與檔案的EtherChannel頁面。
中繼
中繼是一種通過點對點鏈路或兩個裝置之間的EtherChannel捆綁來傳輸來自多個VLAN的流量的方式。以下是兩種實現乙太網中繼的方法：
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ISL（思科專有中繼封裝）
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802.1Q（IEEE標準中繼封裝）
如需詳細資訊，請參閱思科技術支援與檔案的VLAN中繼通訊協定頁面。
慣例
如需文件慣例的詳細資訊，請參閱思科技術提示慣例。
設定
本節提供用於設定本文件中所述功能的資訊。
註：使用Command Lookup Tool(僅限註冊客戶)查詢有關本文檔中使用的命令的更多資訊。
這些示例配置向您展示如何執行以下任務：
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在Catalyst 6500上，為VLAN 1中的工作站1和VLAN 2中的工作站2配置兩個接入埠。
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在Cisco 7500上，將工作站1的預設網關配置為10.10.10.1 /24，將工作站2的預設網關配置為10.10.11.1/24。
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在Catalyst 6500交換機和Cisco 7500路由器之間的雙埠FEC上配置ISL和802.1Q中繼。
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為InterVLAN路由配置兩個使用IP地址的埠通道子介面。
網路圖表
本檔案會使用以下網路設定：
使用2埠的中繼VLAN 1和VLAN 2 FEC 
組態
本檔案會使用以下設定：
| Catalyst 6500交換器 |
|---|
!--- Set the IP address and default gateway for VLAN 1 for management purposes. Catalyst6500> (enable) set interface sc0 10.10.10.2 255.255.255.0 Interface sc0 IP address and netmask set. Catalyst6500> (enable) set ip route default 10.10.10.1 Route added. !--- Set the VTP mode. In this example, the mode is set to be transparent. Depending on your !--- network, set the VTP mode accordingly. !--- For details on VTP, refer to Understanding and Configuring VLAN Trunk Protocol (VTP). Catalyst6500> (enable) set vtp mode transparent VTP domain modified !--- Add VLAN 2. VLAN 1 already exists by default. Catalyst6500> (enable) set vlan 2 VLAN 2 configuration successful !--- Add port 3/4 to VLAN 2. Port 3/3 is already in VLAN 1 by default. Catalyst6500> (enable) set vlan 2 3/4 VLAN 2 modified. VLAN 1 modified. VLAN Mod/Ports ---- ----------------------- 2 3/4 !--- Set the port speed to 100 and duplex to full. One of the requirements for EtherChannel !--- to work is for speed and duplex to be the same on both sides. To guarantee this, hard !--- code both speed and duplex on ports 3/1 and 3/2. Catalyst6500> (enable) set port speed 3/1-2 100 Ports 3/1-2 transmission speed set to 100Mbps. Catalyst6500> (enable) set port duplex 3/1-2 full Ports 3/1-2 set to full-duplex. !--- Enable FEC on ports 3/1 and 3/2. Because routers do not understand Port Aggregation !--- Protocol (PAgP), set the channel mode to one which causes ports to channel but which !--- does not generate PAgP frames. Catalyst6500> (enable) set port channel 3/1-2 on Port(s) 3/1-2 are assigned to admin group 105. Port(s) 3/1-2 channel mode set to on. !--- Enable trunking on ports 3/1 and 3/2. Because routers do not understand Dynamic !--- Trunking Protocol (DTP), set the trunking mode to nonegotiate, which causes ports to !--- trunk but which does not generate DTP frames. !--- Note: Because EtherChannel is configured first, any trunk settings that are applied !--- now to one port automatically apply to all other ports in the channel. !--- Enter the trunking encapsulation as either ISL… Catalyst6500> (enable) set trunk 3/1 nonegotiate isl Port(s) 3/1-2 trunk mode set to nonegotiate. Port(s) 3/1-2 trunk type set to isl. !--- …or as dot1q. !--- Ensure that the native VLAN (default is VLAN 1) matches across the link. For more !--- information about the native VLAN and 802.1Q trunking, refer to Trunking Between !--- Catalyst 4500/4000, 5500/5000, and 6500/6000 Series Switches Using 802.1Q !--- Encapsulation with Cisco CatOS System Software. Catalyst6500> (enable) set trunk 3/1 nonegotiate dot1q Port(s) 3/1-2 trunk mode set to nonegotiate. Port(s) 3/1-2 trunk type set to dot1q. Catalyst6500> (enable) show config This command shows non-default configurations only. Use 'show config all' to show both default and non-default configurations. ......... .................. .. begin ! # ***** NON-DEFAULT CONFIGURATION ***** ! ! #time: Thu May 2 2002, 01:26:26 ! #version 5.5(14) ! ! #system set system name Catalyst6500 ! #! #vtp set vtp mode transparent set vlan 1 name default type ethernet mtu 1500 said 100001 state active set vlan 2 name VLAN0002 type ethernet mtu 1500 said 100002 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 1003 name token-ring-default type trcrf mtu 1500 said 101003 state active mode srb aremaxhop 7 stemaxhop 7 backupcrf off ! #ip set interface sc0 1 10.10.10.2/255.255.255.0 10.10.10.255 set ip route 0.0.0.0/0.0.0.0 10.10.10.1 ! #set boot command set boot config-register 0x2102 set boot system flash bootflash:cat6000-sup.5-5-14.bin ! #port channel set port channel 3/1-2 105 ! # default port status is enable ! ! #module 1 empty ! #module 2 : 2-port 1000BaseX Supervisor ! #module 3 : 48-port 10/100BaseTX Ethernet set vlan 2 3/4 set port disable 3/5 set port speed 3/1-2 100 set port duplex 3/1-2 full set trunk 3/1 nonegotiate isl 1-1005 set trunk 3/2 nonegotiate isl 1-1005 !--- If IEEE 802.1Q is configured, you will see this output instead: set trunk 3/1 nonegotiate dot1q 1-1005 set trunk 3/2 nonegotiate dot1q 1-1005 set port channel 3/1-2 mode on ! #module 4 : 24-port 100BaseFX MM Ethernet ! #module 5 empty ! #module 6 empty ! #module 15 empty ! #module 16 empty end |
| 思科7500路由器 |
|---|
!--- Configure a port-channel interface to enable FEC.
7500# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
7500(config)# interface port-channel 1
01:34:10: %LINEPROTO-5-UPDOWN: Line protocol on Interface Port-channel1, changed
state to down
!--- Configure full-duplex to match the duplex setting on the Catalyst switch side.
7500(config-if)# full-duplex
7500(config-if)# exit
!--- If you are using ISL trunking, configure two port-channel sub-interfaces and issue the !--- encapsulation isl
|
| Cisco 7500 802.1Q配置，適用於低於12.1(3)T的Cisco IOS軟體版本 |
|---|
在低於12.1(3)T的Cisco IOS版本中，子介面下的encapsulation dot1Q 1 native命令不可用。但是，仍然需要匹配鏈路上的本徵VLAN（如前所述）。要在低於12.1(3)T的軟體版本中配置802.1Q中繼，請在主埠 — 通道1介面（而不是埠通道子介面）上配置VLAN 1的IP地址。
!--- Configure a port-channel interface to enable FEC.
7500# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
7500(config)# interface port-channel 1
01:34:10: %LINEPROTO-5-UPDOWN: Line protocol on Interface Port-channel1, changed
state to down
!--- Configure full-duplex to match the duplex setting on the Catalyst switch side.
7500(config-if)# full-duplex
7500(config-if)# exit
!--- Do not configure an interface port-channel 1.1 !--- Instead, create a port-channel 1 main interface and configure the IP address !--- for VLAN 1 here.
7500(config)# interface port-channel 1
7500(config-if)# full-duplex
7500(config-if)# ip address 10.10.10.1 255.255.255.0
7500(config-if)# exit
7500(config)#
!--- It is still necessary to create a subinterface for VLAN 2.
7500(config)# interface port-channel 1.2
7500(config-subif)# encapsulation dot1Q 2
7500(config-subif)# ip address 10.10.11.1 255.255.255.0
7500(config-subif)# exit
!--- Configure the FastEthernet interfaces for speed 100, depending on the port adapter. !--- Some FastEthernet port adapters can autonegotiate speed (10 or 100) and duplex (half !--- or full). Others are only capable of 100 (half or full).
7500(config)# interface fastethernet 5/1/0
7500(config-if)# speed 100
!--- Issue the channel-group command to configure the FastEthernet interfaces to be !--- members of port-channel 1.
7500(config-if)# channel-group 1
%Interface MTU set to channel-group MTU 1500.
7500(config-if)# no shut
7500(config-if)#
%Interface MTU set to channel-group MTU 1500.
FastEthernet5/1/0 added as member-1 to port-channel1
01:46:09: %LINK-3-UPDOWN: Interface FastEthernet5/1/0, changed state to up
01:46:10: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet5/1/0,
changed state to up
01:46:12: %LINEPROTO-5-UPDOWN: Line protocol on Interface Port-channel1,
changed state to up
Router(config-if)# exit
Router(config)# interface fastethernet 5/1/1
Router(config-if)# speed 100
Router(config-if)# channel-group 1
%Interface MTU set to channel-group MTU 1500.
Router(config-if)# no shut
Router(config-if)#
%Interface MTU set to channel-group MTU 1500.
FastEthernet5/1/1 added as member-2 to port-channel1
01:54:52: %LINK-3-UPDOWN: Interface FastEthernet5/1/1, changed state to up
01:54:53: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet5/1/1,
changed state to up
Router(config-if)# exit
!--- Remember to save the configuration.
7500# write memory
Building configuration...
[OK]
7500#
!--- Note: Remember also that—in any version of software previous to 12.2 or 12.2T for the !--- 7000/7500 series—you will have to issue the no ip cef command globally before you !--- configure 802.1Q trunking on a subinterface. Otherwise, you will see this error !--- message: 802.1q encapsulation not supported with CEF configured on the interface. !--- See the Components Used section of this document for more information.
7500# show running-config
Building configuration...
Current configuration : 1593 bytes
!
version 12.1
no service pad
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname 7500
!
!
ip subnet-zero
!
no ip cef
!
!
!
interface Port-channel1
ip address 10.10.10.1 255.255.255.0
full-duplex
hold-queue 300 in
!
interface Port-channel1.2
encapsulation dot1Q 2
ip address 10.10.11.1 255.255.255.0
!
interface FastEthernet5/1/0
no ip address
no ip mroute-cache
speed 100
full-duplex
channel-group 1
!
interface FastEthernet5/1/1
no ip address
no ip mroute-cache
speed 100
full-duplex
channel-group 1
!
!
ip classless
no ip http server
!
!
!
line con 0
line aux 0
line vty 0 4
login
!
end
7500# |
驗證
使用本節內容，確認您的組態是否正常運作。
輸出直譯器工具(僅供已註冊客戶使用)(OIT)支援某些show命令。使用OIT檢視show命令輸出的分析。
Catalyst 6500 show命令
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show interface — 顯示sc0管理介面IP地址和VLAN。在本範例中，使用預設的VLAN(VLAN 1)。
Catalyst6500> (enable) show interface sl0: flags=51<UP,POINTOPOINT,RUNNING> slip 0.0.0.0 dest 0.0.0.0 sc0: flags=63 -
show ip route — 顯示預設網關。在本示例中，10.10.10.1是埠通道1（用於802.1Q中繼）或埠通道1.1（用於ISL中繼）的IP地址。
Catalyst6500> (enable) show ip route Fragmentation Redirect Unreachable ------------- -------- ----------- enabled enabled enabled The primary gateway: 10.10.10.1 Destination Gateway RouteMask Flags Use Interface --------------- --------------- ---------- ----- -------- --------- default 10.10.10.1 0x0 UG 0 sc0 10.10.10.0 10.10.10.2 0xffffff00 U 8 sc0 default default 0xff000000 UH 0 sl0 Catalyst6500> (enable)
-
show port capabilities mod/port — 快速瞭解交換模組的硬體功能。在此範例中，您可以看到連線埠3/1（和3/2）具備EtherChannel功能、其支援哪種中繼封裝和其他資訊。
Catalyst6500> (enable) show port capabilities 3/1 Model WS-X6248-RJ-45 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 yes Broadcast suppression percentage(0-100) Flow control receive-(off,on),send-(off) Security yes Membership static,dynamic Fast start yes QOS scheduling rx-(1q4t),tx-(2q2t) CoS rewrite yes ToS rewrite DSCP UDLD yes Inline power no AuxiliaryVlan 1..1000,untagged,dot1p,none SPAN source,destination COPS port group not supported Catalyst6500> (enable)
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show port counters mod/port — 快速檢視可能的連線埠錯誤。在本範例中，此連線埠沒有任何錯誤。如果連線埠發生錯誤，請參閱疑難排解交換器連線埠和介面問題，瞭解詳細資訊。
Catalyst6500> (enable) show port counters 3/1 Port Align-Err FCS-Err Xmit-Err Rcv-Err UnderSize ----- ---------- ---------- ---------- ---------- --------- 3/1 0 0 0 0 0 Port Single-Col Multi-Coll Late-Coll Excess-Col Carri-Sen Runts Giants ----- ---------- ---------- ---------- ---------- --------- --------- --------- 3/1 0 0 0 0 0 0 - Last-Time-Cleared -------------------------- Thu May 2 2002, 02:11:55 Catalyst6500> (enable)
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show port mod — 顯示連線埠狀態、VLAN、主幹以及速度和雙工資訊。在本例中，工作站1的接入埠是3/3，位於VLAN 1中。工作站2的接入埠是3/4，即VLAN 2。埠3/1和3/2是中繼埠和FEC埠。
Catalyst6500> (enable) show port 3 Port Name Status VLAN Duplex Speed Type ----- -------------------- ---------- ---------- ------ ----- ------------ 3/1 connected trunk full 100 10/100BaseTX 3/2 connected trunk full 100 10/100BaseTX 3/3 connected 1 a-half a-10 10/100BaseTX 3/4 connected 2 a-full a-100 10/100BaseTX !--- Output suppressed.
-
show vlan — 顯示將哪些埠分配給特定VLAN。請注意，此範例中的主干連線埠（3/1和3/2）沒有在此輸出中顯示，這是正常現象。
Catalyst6500> (enable) show vlan VLAN Name Status IfIndex Mod/Ports, Vlans ---- -------------------------------- --------- ------- ------------------------ 1 default active 119 2/1-2 3/3,3/5-48 4/1-24 2 VLAN0002 active 124 3/4 !--- Output suppressed. -
show trunk — 顯示中繼模式、封裝型別、允許的VLAN和活動VLAN。在本例中，VLAN 1（預設情況下始終允許且活動）和VLAN 2是中繼的當前活動VLAN。請注意，兩個主干連線埠均位於VLAN 1中。
Catalyst6500> (enable) show trunk * - indicates vtp domain mismatch Port Mode Encapsulation Status Native vlan -------- ----------- ------------- ------------ ----------- 3/1 nonegotiate isl trunking 1 3/2 nonegotiate isl trunking 1 Port VLANs allowed on trunk -------- --------------------------------------------------------------------- 3/1 1-1005 3/2 1-1005 Port VLANs allowed and active in management domain -------- --------------------------------------------------------------------- 3/1 1-2 3/2 1-2 Port VLANs in spanning tree forwarding state and not pruned -------- --------------------------------------------------------------------- 3/1 1-2 3/2 1-2
對於802.1Q中繼，前面命令的輸出將更改為以下內容：
Catalyst6500> (enable) show trunk * - indicates vtp domain mismatch Port Mode Encapsulation Status Native VLAN -------- ----------- ------------- ------------ ----------- 3/1 nonegotiate dot1q trunking 1 3/2 nonegotiate dot1q trunking 1 Port VLANs allowed on trunk -------- --------------------------------------------------------------------- 3/1 1-1005 3/2 1-1005 Port VLANs allowed and active in management domain -------- --------------------------------------------------------------------- 3/1 1-2 3/2 1-2 Port VLANs in spanning tree forwarding state and not pruned -------- --------------------------------------------------------------------- 3/1 1-2 3/2 1-2 Catalyst6500> (enable)
-
show port channel — 顯示EtherChannel狀態。在本示例中，有一個2埠FEC（埠3/1和3/2）處於開啟狀態，以防止PAgP幀被傳輸。您還可以看到7500路由器的遠端埠通道介面。
Catalyst6500> (enable) show port channel Port Status Channel Admin Ch Mode Group Id ----- ---------- -------------------- ----- ----- 3/1 connected on 105 833 3/2 connected on 105 833 ----- ---------- -------------------- ----- ----- Port Device-ID Port-ID Platform ----- ------------------------------- ------------------------- ---------------- 3/1 7500 Port-channel1.1 cisco RSP4 3/2 ----- ------------------------------- ------------------------- ---------------- Catalyst6500> (enable)對於具有802.1Q中繼的FEC，前面命令的輸出將更改為以下內容：
Catalyst6500> (enable) show port channel Port Status Channel Admin Ch Mode Group Id ----- ---------- -------------------- ----- ----- 3/1 connected on 257 769 3/2 connected on 257 769 ----- ---------- -------------------- ----- ----- Port Device-ID Port-ID Platform ----- ------------------------------- ------------------------- ---------------- 3/1 7500 FastEthernet5/1/0 cisco RSP4 3/2 7500 FastEthernet5/1/1 cisco RSP4 ----- ------------------------------- ------------------------- ---------------- Catalyst6500> (enable)
如果您的Cisco裝置具有show-tech support指令的輸出，可以使用Output Interpreter Tool(僅供註冊客戶使用)顯示潛在問題和修正程式。
Cisco 7500路由器show命令
-
show interface port-channel channel number — 提供物理介面的成員狀態。在本範例中，在Catalyst 6000上的連線埠3/1和3/2之間以及7500上的介面FastEthernet 5/1/0和5/1/1之間設定了2埠FEC。Port-channel 1顯示為up/up。
它配置了IP地址，在本例中表示它是802.1Q中繼的本徵VLAN IP地址。如需詳細資訊，請參閱本檔案的Cisco 7500 802.1Q組態Cisco IOS軟體版本12.1(3)T之前的版本。此外，還顯示VLAN 2 802.1Q子介面的輸出(來自show interface port channel 1.2命令)。
7500# show interface port-channel 1 Port-channel1 is up, line protocol is up Hardware is FEChannel, address is 0001.6490.f8a8 (bia 0000.0000.0000) Internet address is 10.10.10.1/24 MTU 1500 bytes, BW 200000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, Unknown Speed ARP type: ARPA, ARP Timeout 04:00:00 No. of active members in this channel: 2 Member 0 : FastEthernet5/1/0 Member 1 : FastEthernet5/1/1 Last input 00:00:14, output never, output hang never Last clearing of "show interface" counters never Input queue: 0/300/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue :0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 6720 packets input, 923310 bytes, 0 no buffer Received 5010 broadcasts, 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog 0 input packets with dribble condition detected 1902 packets output, 573088 bytes, 0 underruns 0 output errors, 0 collisions, 0 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier 0 output buffer failures, 0 output buffers swapped out 7500# 7500# show interface port-channel 1.2 Port-channel1.2 is up, line protocol is up Hardware is FEChannel, address is 0001.6490.f8a8 (bia 0000.0000.0000) Internet address is 10.10.11.1/24 MTU 1500 bytes, BW 200000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation 802.1q Virtual LAN, Vlan ID 2. ARP type: ARPA, ARP Timeout 04:00:00這是ISL中繼和FEC的輸出：
7500# show interface port-channel 1 Port-channel1 is up, line protocol is up Hardware is FEChannel, address is 0001.6490.f8a8 (bia 0000.0000.0000) MTU 1500 bytes, BW 200000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, Unknown Speed ARP type: ARPA, ARP Timeout 04:00:00 No. of active members in this channel: 2 Member 0 : FastEthernet5/1/0 Member 1 : FastEthernet5/1/1 Last input 00:00:01, output never, output hang never Last clearing of "show interface" counters never Input queue: 0/300/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue :0/40 (size/max) 5 minute input rate 0 bits/sec, 1 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 113 packets input, 7278 bytes, 0 no buffer Received 0 broadcasts, 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog 0 input packets with dribble condition detected 13 packets output, 2264 bytes, 0 underruns 0 output errors, 0 collisions, 0 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier 0 output buffer failures, 0 output buffers swapped out 7500# show interface port-channel 1.1 Port-channel1.1 is up, line protocol is up Hardware is FEChannel, address is 0001.6490.f8a8 (bia 0000.0000.0000) Internet address is 10.10.10.1/24 MTU 1500 bytes, BW 200000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ISL Virtual LAN, Color 1. ARP type: ARPA, ARP Timeout 04:00:00 7500# show interface port-channel 1.2 Port-channel1.2 is up, line protocol is up Hardware is FEChannel, address is 0001.6490.f8a8 (bia 0000.0000.0000) Internet address is 10.10.11.1/24 MTU 1500 bytes, BW 200000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ISL Virtual LAN, Color 2. ARP type: ARPA, ARP Timeout 04:00:00 -
show interfaces fastethernet slot/port-adapter/port — 顯示路由器物理介面的狀態以及介面上是否存在任何錯誤。在此範例中，它沒有錯誤。
7500# show interface fastethernet 5/1/0 FastEthernet5/1/0 is up, line protocol is up Hardware is cyBus FastEthernet Interface, address is 0001.6490.f8a8 (bia 0001.6490.f8a8) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, 100BaseTX/FX ARP type: ARPA, ARP Timeout 04:00:00 Last input 1d00h, output 00:00:07, output hang never Last clearing of "show interface" counters 1d00h Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue :0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 2929 packets input, 425318 bytes, 0 no buffer Received 0 broadcasts, 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog 0 input packets with dribble condition detected 12006 packets output, 1539768 bytes, 0 underruns 0 output errors, 0 collisions, 6 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier 0 output buffer failures, 0 output buffers swapped out 7500#
疑難排解
目前尚無適用於此組態的具體疑難排解資訊。
意見