在 CatOS 交换机与外部路由器之间配置 FEC 与 ISL/802.1q 聚合
目录
简介
本文档提供运行CatalystOS(CatOS)的Catalyst 6500交换机与Cisco 7500路由器之间快速以太网通道(FEC)、交换机间链路(ISL)和802.1Q中继的示例配置。执行命令时，每个命令的结果都将显示出来。虽然此配置中使用Catalyst 6000交换机，但您可以替换运行CatOS的Catalyst 4000或Catalyst 5000系列交换机。
先决条件
要求
尝试进行此配置之前，请确保满足以下要求：
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Catalyst 6000 系列交换机
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支持EtherChannel需要5.1(1)CSX或更高版本的CatOS
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思科7000或7500系列路由器
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带7000系列路由交换处理器(RSP7000)或机箱接口(RSP7000CI)的Cisco 7000系列路由器，或带快速以太网接口处理器(FEIP)或通用接口处理器(VIP)的Cisco 7500系列路由器2)端口适配器
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如果使用PA-2FEISL端口适配器，则必须有硬件修订版1.2或更高版本。
有关此问题的示例，请参阅 Field Notice：*过期* FN - 8791_11301999 - PA-2FEISL 2端口快速以太网ISL更换建议，以了解详细信息。
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Cisco IOS®软件版本12.1(3)T中引入了encapsulation dot1Q native命令。此命令会更改配置。
有关详细信息，请参阅本文档的Cisco 7500 802.1Q配置(适用于12.1(3)T之前的Cisco IOS软件版本)部分。
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默认情况下，Cisco 7500系列路由器上已启用Cisco快速转发。但是，在Cisco IOS软件版本12.2和12.2T之前，IEEE 802.1Q VLAN之间的IP路由的Cisco快速转发支持不可用。在以前版本中仍可以配置802.1Q封装，但必须先发出全局no ip cef命令以禁用Cisco快速转发。
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当7500系列路由器配置为多协议标签交换(MPLS)和FEC时，当前不支持从MPLS接口流向FEC接口的路由(MPLS” IP)数据包。因此，不建议MPLS和FEC配置在单台路由器上共存。
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支持EtherChannel需要Cisco IOS软件版本11.1(14)CA或更高版本。
支持ISL中继需要Cisco IOS软件版本11.3(1)T（任何加号功能集）或更高版本。
支持IEEE 802.1Q中继需要Cisco IOS软件版本12.0(1)T（任何加号功能集）或更高版本。
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使用的组件
本文档中的信息基于以下软件和硬件版本：
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运行CatOS版本5.5.14的Catalyst 6500
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运行Cisco IOS软件版本12.2.7b的Cisco 7500
本文档中的信息都是基于特定实验室环境中的设备编写的。本文档中使用的所有设备最初均采用原始（默认）配置。如果您使用的是真实网络，请确保您已经了解所有命令的潜在影响。
重要说明
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请记住，Catalyst 4000系列交换机不支持ISL中继。此外，Catalyst 5000系列交换机上的某些交换模块不支持EtherChannel。发出show port capabilities module命令以确定特定模块是否支持EtherChannel及其支持的中继封装。
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EtherChannel和中继的配置有某些指导原则。请务必参阅交换机的软件文档。
例如，如果您在Catalyst 5000上运行软件版本5.5.x，请参阅软件配置指南(5.5)，并仔细检查“配置快速EtherChannel和千兆EtherChannel”部分中的任何配置指南和限制。
EtherChannel
FEC或千兆位以太网通道(GEC)功能允许将多个点对点链路捆绑到一个逻辑链路中。Catalyst 6000在全双工模式下最多支持八个端口，为FEC提供1600 Mbps或1.6 Gbps的吞吐量，为GEC提供16 Gbps的吞吐量。Cisco 7500系列支持每个FEC最多四个端口(800 Mbps)。EtherChannel功能和性能因交换机或路由器而异。有关详细信息，请参阅在Catalyst交换机上实施EtherChannel的系统要求。
EtherChannel将流量分布到所有链路，并在一个或多个链路发生故障时提供冗余。有关EtherChannel的详细信息和配置示例，请参阅了解Catalyst交换机上的EtherChannel负载均衡和冗余 
。
有关详细信息，请参阅Cisco技术支持和文档的EtherChannel页。
中继
中继是通过点对点链路或两台设备之间的EtherChannel捆绑来传输来自多个VLAN的流量的一种方式。以下是实施以太网中继的两种方式：
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ISL（思科专有中继封装）
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802.1Q（IEEE标准中继封装）
有关详细信息，请参阅Cisco技术支持和文档的VLAN中继协议页。
规则
有关文档规则的详细信息，请参阅 Cisco 技术提示规则。
配置
本部分提供有关如何配置本文档所述功能的信息。
注意：使用命令查找工具(仅限注册客户)可查找有关本文档中使用的命令的详细信息。
这些示例配置向您展示如何执行以下操作：
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在Catalyst 6500上为VLAN 1中的工作站1和VLAN 2中的工作站2配置两个接入端口。
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在Cisco 7500上，将工作站1的默认网关配置为10.10.10.1 /24，将工作站2的默认网关配置为10.10.11.1/24。
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在Catalyst 6500交换机和Cisco 7500路由器之间通过双端口FEC配置ISL和802.1Q中继。
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为VLAN间路由配置两个端口通道子接口的IP地址。
网络图
本文档使用以下网络设置：
中继VLAN 1和VLAN 2通过2端口FEC 
配置
本文档使用以下配置：
| Catalyst 6500 交换机 |
|---|
!--- 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 |
| Cisco 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
|
| 12.1(3)T之前的Cisco IOS软件版本的Cisco 7500 802.1Q配置 |
|---|
在低于12.1(3)T的Cisco IOS版本中，子接口下的encapsulation dot1Q 1 native命令不可用。但是，仍需要按照前面所述匹配链路上的本征VLAN。要在12.1(3)T之前的软件版本中配置802.1Q中继，请在主端口通道1接口上配置VLAN 1的IP地址，而不是端口通道子接口。
!--- 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# |
验证
使用本部分可确认配置能否正常运行。
命令输出解释程序（仅限注册用户）(OIT) 支持某些 show 命令。使用 OIT 可查看对 show 命令输出的分析。
Catalyst 6500 show 命令
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show interface — 显示sc0管理接口IP地址和VLAN。在本例中，使用默认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 — 显示默认网关。在本示例中，10.10.10.1是端口通道1（用于802.1Q中继）或端口通道1.1（用于ISL中继）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)
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show port capabilities mod/port — 快速查看交换模块的硬件功能。在本示例中，您可以看到端口3/1（和3/2）支持EtherChannel，支持哪些中继封装以及其他信息。
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 — 快速查看可能的端口错误。在本例中，此端口没有任何错误。如果在端口上遇到错误，请参阅排除交换机端口和接口故障以了解详细信息。
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 — 显示端口状态、VLAN、中继、速度和双工信息。在本例中，工作站1的接入端口是3/3，位于VLAN 1中。工作站2的接入端口是3/4，即VLAN 2。端口3/1和3/2是中继和FEC端口。
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.
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show vlan — 显示哪些端口已分配给特定VLAN。请注意，本示例（3/1和3/2）中的中继端口未显示在此输出中，这是正常的。
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 — 显示中继模式、封装类型、允许的VLAN和活动VLAN。在本例中，VLAN 1（默认情况下始终允许并处于活动状态）和VLAN 2是中继的当前活动VLAN。注意，两个中继端口都在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
对于802.1Q中继，上一命令的输出更改为：
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)
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show port channel — 显示EtherChannel状态。在本例中，有一个2端口FEC（端口3/1和3/2）打开，以防止PAgP帧传输。您还可以看到7500路由器的远程端口通道接口。
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)对于具有802.1Q中继的FEC，以前命令的输出将更改为：
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)
如果您有来自Cisco设备的show-tech support命令的输出，则可以使用Output Interpreter Tool(仅限注册客户)来显示潜在问题和解决方法。
Cisco 7500 路由器 show 命令
-
show interface port-channel channel number — 为物理接口提供成员状态。在本示例中，在Catalyst 6000的端口3/1和3/2之间以及7500的接口FastEthernet 5/1/0和5/1/1之间配置了2端口FEC。端口通道1显示为up/up状态。
它配置了IP地址，这意味着它是802.1Q中继的本征VLAN IP地址。有关详细信息，请参阅本文档的Cisco 7500 802.1Q配置(适用于12.1(3)T之前的Cisco IOS软件版本)部分。VLAN 2 802.1Q子接口的输出也显示在show interface port channel 1.2命令中。
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以下是ISL中继和FEC的输出：
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 — 显示路由器物理接口的状态以及接口上是否存在任何错误。在本例中，它是无错的。
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#
故障排除
目前没有针对此配置的故障排除信息。
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