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Table Of Contents
Configuring the Fast Ethernet SPA and Gigabit Ethernet SPA
Specifying the Interface Address
Modifying the MAC Address on the Interface
Modifying the Interface MTU Size
Configuring the Encapsulation Type
Configuring a Subinterface on a VLAN
Configuring Autonegotiation on an Interface
Configuring Flow Control Support on the Link
Shutting Down and Restarting an Interface on a SPA
Verifying the Interface Configuration
Verifying Per-Port Interface Status
Monitoring Per-Port Interface Statistics
Basic Interface Configuration Example
Media Type Configuration Example
MAC Address Configuration Example
Autonegotiation Configuration Examples
Configuring the Fast Ethernet SPA and Gigabit Ethernet SPA
This chapter provides information about configuring the 4-Port 10/100 Fast Ethernet SPA and 2-Port 10/100/1000 Gigabit Ethernet SPA on the Cisco 7304 router. It includes the following sections:
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Verifying the Interface Configuration
For information about managing your system images and configuration files, refer to the Cisco IOS Configuration Fundamentals Configuration Guide, Release 12.2 and Cisco IOS Configuration Fundamentals Command Reference, Release 12.2 publications.
For more information about the commands used in this chapter, first see Chapter 18, "Command Reference," which documents new and modified commands, and the Cisco 7300 Series Platform-Specific Commands. Also refer to the related Cisco IOS Release 12.2 software command reference and master index publications. For more information about accessing these publications, see the "Related Documentation" section on page xiv.
Configuration Tasks
This section describes how to configure the 4-Port 10/100 Fast Ethernet SPA and 2-Port 10/100/1000 Gigabit Ethernet SPA and includes information about verifying the configuration.
It includes the following topics:
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Specifying the Interface Address
The implementation of SPAs on the Cisco 7304 router introduces a new addressing format to specify the physical location of the MSC, SPA, and interface. The interface address format is slot/subslot/port:
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Figure 6-1 shows the slot, subslot, and interface port locations of the 4-Port 10/100 Fast Ethernet SPA in an MSC-100 on the Cisco 7304 router.
Figure 6-1 Slot, Subslot, and Port Locations for the 4-Port 10/100 Fast Ethernet SPA
For more information about the installation of SPAs on the Cisco 7304 router, refer to the Cisco 7304 Router Modular Services Card and Shared Port Adapter Hardware Installation Guide.
Required Configuration Tasks
This section lists the required configuration steps to configure the Fast Ethernet and Gigabit Ethernet SPAs. Some of the required configuration commands implement default values that might be appropriate for your network. If the default value is correct for your network, then you do not need to configure the command. These commands are indicated by "(As Required)" in the Purpose column.
Required Configuration Tasks for the Fast Ethernet SPA
To configure the 4-Port 10/100 Fast Ethernet SPA, complete the following steps:
Step 1
Router# configure terminal
Enters global configuration mode.
Step 2
Router(config)# interface fastethernet slot/subslot/port[.subinterface-number]
Specifies the Fast Ethernet interface to configure, where:
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Step 3
Router(config-if)# ip address ip-address mask [secondary]
Sets a primary or secondary IP address for an interface, where:
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Step 4
Router(config-if)# duplex {full | half | auto}
(As Required) Configures the duplex operation on an interface.
The default is auto—Enables advertisement of both duplex modes and enables autonegotiation.
Step 5
Router(config-if)# speed {10 | 100 | auto}
(As Required) Configures the speed of an interface (Mbps).
The default is auto—Enables advertisement of all speed modes and enables autonegotiation.
Step 6
Router(config-if)# mtu bytes
(As Required) Specifies the maximum packet size for an interface, where:
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Step 7
Router(config-if)# no shutdown
Enables the interface.
Required Configuration Tasks for the Gigabit Ethernet SPA
To configure the 2-Port 10/100/1000 Gigabit Ethernet SPA, complete the following steps:
Step 1
Router# configure terminal
Enters global configuration mode.
Step 2
Router(config)# interface gigabitethernet slot/subslot/port[.subinterface-number]
Specifies the Gigabit Ethernet interface to configure, where:
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Step 3
Router(config-if)# ip address ip-address mask [secondary]
Sets a primary or secondary IP address for an interface, where:
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Step 4
Router(config-if)# media-type {gbic | rj45}
(As Required) Specifies the type of media used to make the network connection on the router, where:
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Step 5
Router(config-if)# duplex {full | half | auto}
(As Required for RJ-45 Media) Configures the duplex operation on an interface.
The default is auto—Enables advertisement of both modes and autonegotiation.
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Step 6
Router(config-if)# speed {10 | 100 | 1000 | auto}
(As Required for RJ-45 Media) Configures the speed of an interface (Mbps).
The default is auto—Enables advertisement of all speed modes and enables autonegotiation.
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Step 7
Router(config-if)# mtu bytes
(As Required) Configures the maximum packet size for an interface, where:
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Step 8
Router(config-if)# no shutdown
Enables the interface.
Modifying the Media Type
RJ-45 is the only supported media type for copper interfaces on the 4-Port 10/100 Fast Ethernet SPA. Therefore, you do not need to configure the media-type command on the Fast Ethernet SPA.
However, if you are using fiber connections on the 2-Port 10/100/1000 Gigabit Ethernet SPA, you must configure the media-type command to change the default value. If you connect both RJ-45 and fiber media to the same interface on the Gigabit Ethernet SPA, be sure that you configure the media-type command to specify the media type.
To modify the default media type of an interface from RJ-45 for Gigabit Ethernet SPAs, use the following command in interface configuration mode:
Router(config-if)# media-type gbic
Specifies the interface supports fiber media using an SFP optical transceiver.
For a list of the compatible SFP modules for the 2-Port 10/100/1000 Gigabit Ethernet SPA, refer to the Cisco 7304 Router Modular Services Card and Shared Port Adapter Hardware Installation Guide.
Verifying the Media Type
To verify the media type for an interface, use the show interfaces fastethernet or show interfaces gigabitethernet privileged EXEC command and observe the value shown in the "media type" field.
The following example shows that the media type is SX for interface port 0 (the first port) on the SPA installed in the bottom subslot (1) of the MSC that is located in slot 4 of the Cisco 7304 router:
Router# show interfaces gigabitethernet 4/1/0GigabitEthernet4/1/0 is up, line protocol is upHardware is SPA-2GE-7304, address is 0007.0ed3.ba88 (bia 0007.0ed3.ba88)MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,reliability 255/255, txload 1/255, rxload 1/255Encapsulation ARPA, loopback not setKeepalive set (10 sec)Full-duplex, 1000Mb/s, link type is auto, media type is SX...You also can use the show controllers gigabitethernet privileged EXEC command to verify the media type. The following example shows that the GBIC type is 1000BaseSX for interface port 0 (the first port) on the SPA installed in the bottom subslot (1) of the MSC that is located in slot 4 of the Cisco 7304 router:
Router# show controllers gigabitethernet 4/1/0Interface GigabitEthernet4/1/0Hardware is SPA-2GE-7304Connection mode is auto-negotiationInterface state is up, link is upConfiguration is Auto Speed, Auto DuplexSelected media-type is GBIC, GBIC type is 1000BaseSX...Modifying the MAC Address on the Interface
The 4-Port 10/100 Fast Ethernet SPA and 2-Port 10/100/1000 Gigabit Ethernet SPA use a default MAC address for each port that is derived from the base address that is stored in the electrically erasable programmable read-only memory (EEPROM) on the backplane of the Cisco 7304 router.
To modify the default MAC address of an interface to some user-defined address, use the following command in interface configuration mode:
To return to the default MAC address on the interface, use the no form of the command.
Verifying the MAC Address
To verify the MAC address of an interface, use the show interfaces fastethernet or show interfaces gigabitethernet privileged EXEC command and observe the value shown in the "address is" field.
The following example shows that the MAC address is 00b0.64ff.5d80 for interface port 0 (the first port) on the SPA installed in the top subslot (0) of the MSC that is located in slot 4 of the Cisco 7304 router:
Router# show interfaces fastethernet 4/0/0FastEthernet4/0/0 is up, line protocol is upHardware is SPA-4FE-7304, address is 00b0.64ff.5d80 (bia 00b0.64ff.5d80)Internet address is 192.168.50.1/24MTU 9216 bytes, BW 100000 Kbit, DLY 100 usec,reliability 255/255, txload 1/255, rxload 1/255...Modifying the Interface MTU Size
The Cisco IOS software supports three different types of configurable maximum transmission unit (MTU) options at different levels of the protocol stack:
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Different encapsulation methods and the number of MPLS MTU labels add additional overhead to a packet. For example, Subnetwork Access Protocol (SNAP) encapsulation adds an 8-byte header, dot1q encapsulation adds a 2-byte header, and each MPLS label adds a 4-byte header (n labels x 4 bytes).
For the 4-Port 10/100 Fast Ethernet SPA and the 2-Port 10/100/1000 Gigabit Ethernet SPA, the default MTU size is 1500 bytes. The maximum configurable MTU is 9216 bytes. The SPA automatically adds an additional 36 bytes to the configured MTU size to accommodate some of the additional overhead.
The MTU size on a SPA interface affects the recording of the "giants" statistic in the show interfaces fastethernet and show interfaces gigabitethernet commands. When using the default MTU size of 1500 bytes, the giants counter increments when the interface receives a packet that is greater than 1536 bytes.
Interface MTU Configuration Guidelines
When configuring the interface MTU size on a 4-Port 10/100 Fast Ethernet SPA or 2-Port 10/100/1000 Gigabit Ethernet SPA, consider the following guidelines:
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Interface MTU Configuration Task
To modify the MTU size on an interface, use the following command in interface configuration mode:
Router(config-if)# mtu bytes
Configures the maximum packet size for an interface, where:
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To return to the default MTU size, use the no form of the command.
Verifying the MTU Size
To verify the MTU size for an interface, use the show interfaces fastethernet or show interfaces gigabitethernet privileged EXEC command and observe the value shown in the "MTU" field.
The following example shows an MTU size of 9216 bytes for interface port 0 (the first port) on the SPA installed in the top subslot (0) of the MSC that is located in slot 4 of the Cisco 7304 router:
Router# show interfaces fastethernet 4/0/0FastEthernet4/0/0 is up, line protocol is upHardware is SPA-4FE-7304, address is 00b0.64ff.5d80 (bia 00b0.64ff.5d80)Internet address is 192.168.50.1/24MTU 9216 bytes, BW 100000 Kbit, DLY 100 usec,reliability 255/255, txload 1/255, rxload 1/255...Configuring the Encapsulation Type
By default, the interfaces on the 4-Port 10/100 Fast Ethernet SPA and the 2-Port 10/100/1000 Gigabit Ethernet SPA support Advanced Research Projects Agency (ARPA) encapsulation. They do not support configuration of service access point (SAP) or SNAP encapsulation for transmission of frames; however, the interfaces will properly receive frames that use SAP and SNAP encapsulation.
The only other encapsulation supported by the SPA interfaces is IEEE 802.1Q encapsulation for virtual LANs (VLANs).
Configuring a Subinterface on a VLAN
You can configure subinterfaces on the the 4-Port 10/100 Fast Ethernet SPA and the 2-Port 10/100/1000 Gigabit Ethernet SPA on a VLAN using IEEE 802.1Q encapsulation.
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To configure a SPA subinterface on a VLAN, use the following commands beginning in interface configuration mode:
Step 1
Router(config)# interface fastethernet slot/subslot/port.subinterface-number
Specifies the Fast Ethernet interface to configure, where:
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Step 2
Router(config-subif)# encapsulation dot1q vlan-id
Defines the encapsulation format as IEEE 802.1Q (dot1q), where vlan-id is the number of the VLAN (1-4095).
Step 3
Router(config-if)# ip address ip-address mask [secondary]
Sets a primary or secondary IP address for an interface, where:
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Verifying Subinterface Configuration on a VLAN
To verify the configuration of a subinterface and its status on the VLAN, use the show vlans privileged EXEC command.
The following example shows the status of subinterface number 268 on port 2 (third port) on the SPA in VLAN number 269:
Router# show vlans 269Virtual LAN ID: 269 (IEEE 802.1Q Encapsulation)vLAN Trunk Interface: FastEthernet4/1/2.268Protocols Configured: Address: Received: Transmitted:PXF:FastEthernet4/1/2.268 941668 0RP Switched:IP 10.1.13.1 5 0Configuring Autonegotiation on an Interface
Fast Ethernet and Gigabit Ethernet interfaces use a connection-setup algorithm called autonegotiation. Autonegotiation allows the local and remote devices to configure compatible settings for communication over the link. Using autonegotiation, each device advertises its transmission capabilities and then agrees upon the settings to be used for the link.
If autonegotiation fails for some reason, the Fast Ethernet or Gigabit Ethernet interface is configured for half-duplex mode and automatically senses the speed on the link. For Gigabit Ethernet interfaces using fiber media, full-duplex mode and 1000-Mbps speed only is supported.
By default, the 4-Port 10/100 Fast Ethernet SPA and the 2-Port 10/100/1000 Gigabit Ethernet SPA support autonegotiation of the speed and duplex settings. The SPA automatically implements flow control (transmission of pause frames), which is advertised, but is not negotiable. For more information about flow control configuration requirements if you disable autonegotiation, see the "Configuring Flow Control Support on the Link" section.
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Autonegotiation configuration varies slightly depending on the media type that you are using. The following sections describe these configuration differences:
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Configuring Autonegotiation on RJ-45 Interfaces
The 4-Port 10/100 Fast Ethernet SPA only supports RJ-45 media for its interfaces. The 2-Port 10/100/1000 Gigabit Ethernet SPA supports both RJ-45 and fiber media for its interfaces.
When using the RJ-45 media type, the interface enables autonegotiation when either the speed or duplex interface configuration commands are configured to auto. By default, both the speed and duplex commands are set to auto, which means that the interface advertises that it can support either 10-Mbps or 100-Mbps operation for Fast Ethernet interfaces, or 10-Mbps, 100-Mbps, or 1000-Mbps operation for Gigabit Ethernet interfaces, and that it can also support half-duplex or full-duplex mode on the link, in any combination as follows:
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If you want to force a particular speed or duplex setting, while still enabling autonegotiation, then you can specify a value for that parameter while leaving the other parameter configured for auto.
For more information, see the following sections:
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Specifying the Speed with Autonegotiation of the Duplex Mode Only on RJ-45 Interfaces
To configure an interface using RJ-45 media on the 4-Port 10/100 Fast Ethernet SPA or 2-Port 10/100/1000 Gigabit Ethernet SPA for a specific speed, but also advertise support of either full-duplex or half-duplex operation, use the following commands beginning in interface configuration mode:
Specifying the Duplex Mode with Autonegotiation of the Speed Only on RJ-45 Interfaces
To configure an interface using RJ-45 media on the 4-Port 10/100 Fast Ethernet SPA or 2-Port 10/100/1000 Gigabit Ethernet SPA for a specific duplex mode, but also advertise support of either 10-Mbps, 100-Mbps, or 1000-Mbps operation, use the following commands beginning in interface configuration mode:
Disabling Autonegotiation on RJ-45 Interfaces
When you specify a particular value for both the duplex and speed commands when using RJ-45 media, you disable autonegotiation on the link. Therefore, the interface does not advertise its capabilities to the remote device and it forces operation of the interface port according to the settings that you configured.
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To disable autonegotiation on an interface using RJ-45 media and configure it for a specific duplex mode and speed, use the following commands beginning in interface configuration mode:
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Configuring Autonegotiation on Fiber Interfaces
The 4-Port 10/100 Fast Ethernet SPA only supports RJ-45 media for its interfaces. The 2-Port 10/100/1000 Gigabit Ethernet SPA supports both RJ-45 and fiber media for its interfaces. To configure autonegotiation for interfaces using RJ-45 media, see the "Configuring Autonegotiation on RJ-45 Interfaces" section.
When using SFP media on the 2-Port 10/100/1000 Gigabit Ethernet SPA, use the instructions in this section to configure autonegotiation.
Disabling Autonegotiation on Fiber Interfaces
Autonegotiation is automatically enabled. During autonegotiation on fiber interfaces, advertisement and configuration of full-duplex mode and 1000-Mbps speed occurs. Flow control support is also advertised. When you disable autonegotiation on a Gigabit Ethernet SPA interface that uses fiber media, the interface no longer advertises but automatically configures itself for full-duplex mode and 1000-Mbps speed.
To disable autonegotiation on a Gigabit Ethernet interface using fiber media, use the following command in interface configuration mode:
Enabling Autonegotiation on Fiber Interfaces
Autonegotiation is automatically enabled. During autonegotiation on fiber interfaces, advertisement and configuration of full-duplex mode and 1000-Mbps speed occurs. Flow control support is also advertised. To re-enable autonegotiation on a Gigabit Ethernet interface using fiber media, use the following command in interface configuration mode:
Verifying Autonegotiation Status
To verify the status of autonegotiation on a Fast Ethernet or Gigabit Ethernet interface on a SPA, use the show controllers fastethernet or show controllers gigabitethernet privileged EXEC command.
The following example shows that the connection mode is autonegotiation for interface port 0 (the first port) on the SPA located in the top subslot (0) of the MSC that is installed in slot 4 of the Cisco 7304 router, and that autonegotiation is enabled and complete.
The settings established on the link are 100-Mbps operation with full-duplex support. The output also displays the advertised capabilities of both the local interface (beside "Advertised capabilities") and the remote device (beside "Partner capabilities"):
Router# show controllers fastethernet 4/0/0Interface FastEthernet4/0/0Hardware is SPA-4FE-7304Connection mode is auto-negotiationInterface state is up, link is upConfiguration is Auto Speed, Auto DuplexSelected media-type is RJ45Promiscuous mode is off, VLAN filtering is enabledMDI crossover status: MDIAuto-negotiation configuration and status:Auto-negotiation is enabled and is completedSpeed/duplex is resolved to 100 Mbps, full duplexAdvertised capabilities: 10M/HD 10M/FD 100M/HD 100M/FDPartner capabilities: 10M/HD 10M/FD 100M/HD 100M/FD...Configuring Flow Control Support on the Link
The 4-Port 10/100 Fast Ethernet SPA and 2-Port 10/100/1000 Gigabit Ethernet SPA automatically support transmission of pause frames to stop packet flow when the per-port MSC buffer is full. You can not disable flow control on the 4-Port 10/100 Fast Ethernet SPA or 2-Port 10/100/1000 Gigabit Ethernet SPA.
Therefore, flow control support on the 4-Port 10/100 Fast Ethernet SPA and 2-Port 10/100/1000 Gigabit Ethernet SPA is not configurable, but it is advertised during autonegotiation.
Verifying Flow Control Status
To verify the status of flow control on a Fast Ethernet interface on a SPA, use the show controllers fastethernet privileged EXEC command and view the "Total pause frames" counters in the "MAC counters" section of the output.
The following example shows that zero pause frames have been transmitted and received by the MAC device for interface port 0 (the first port) on the SPA located in the top subslot (0) of the MSC that is installed in slot 4 of the Cisco 7304 router:
Router# show controllers fastethernet 4/0/0Interface FastEthernet4/0/0Hardware is SPA-4FE-7304Connection mode is auto-negotiationInterface state is up, link is upConfiguration is Auto Speed, Auto DuplexSelected media-type is RJ45Promiscuous mode is off, VLAN filtering is enabledMDI crossover status: MDIAuto-negotiation configuration and status:Auto-negotiation is enabled and is completedSpeed/duplex is resolved to 100 Mbps, full duplexAdvertised capabilities: 10M/HD 10M/FD 100M/HD 100M/FDPartner capabilities: 10M/HD 10M/FD 100M/HD 100M/FDMAC counters:Input: packets = 15, bytes = 1776FIFO full/reset removed = 0, error drop = 0Output: packets = 18, bytes = 2622FIFO full/reset removed = 0, error drop = 0Total pause frames: transmitted = 0, received = 0FPGA counters:Input: Total (good & bad) packets: 15, TCAM drops: 4Satisfy (host-backpressure) drops: 0, CRC drops: 0PL3 RERRs: 0Output: EOP (SPI4) errors: 0SPA carrier card counters:Input: packets = 11, bytes = 1476, drops = 0Output: packets = 18, bytes = 2550, drops = 0Egress flow control status: XONPer bay counters:General errors: input = 0, output = 0SPI4 errors: ingress dip4 = 0, egress dip2 = 0MAC destination address filtering table:Table entries: Total = 512, Used = 4, Available = 508Index MAC destination address Mask----- ----------------------- --------------1 0007.0ed3.ba80 ffff.ffff.ffff2 ffff.ffff.ffff ffff.ffff.ffff3 0100.0000.0000 0100.0000.00004 0100.0ccc.cccc ffff.ffff.ffffVLAN filtering table:Number of VLANs configured on this interface = 0Table entries: Total = 1024, Used = 2, Available = 1022Index VLAN identifier Enabled Tunnel----- --------------- ------- ------1 0 No No2 0 Yes NoPlatform details:PXF tif number: 0x10Saving the Configuration
To save your running configuration to nonvolatile random-access memory (NVRAM), use the following command in privileged EXEC configuration mode:
For more information about managing configuration files, refer to the Cisco IOS Configuration Fundamentals Configuration Guide, Release 12.2 and Cisco IOS Configuration Fundamentals Command Reference, Release 12.2 publications.
Shutting Down and Restarting an Interface on a SPA
You can shut down and restart any of the interface ports on a SPA independently of each other. Shutting down an interface stops traffic and enters the interface into an "administratively down" state.
If you are preparing for an OIR of a SPA, it is not necessary to independently shut down each of the interfaces prior to deactivation of the SPA. The hw-module subslot stop command automatically stops traffic on the interfaces and deactivates them along with the SPA in preparation for OIR.
In similar fashion, you do not need to independently restart any interfaces on a SPA after OIR of a SPA or MSC. For more information about performing an OIR for a SPA, see the "Preparing for Online Insertion and Removal of MSCs and SPAs on the Cisco 7304 Router" section on page 3-8.
To shut down an interface on a SPA, use the following command in interface configuration mode:
To restart an interface on a SPA, use the following command in interface configuration mode:
Verifying the Interface Configuration
Besides using the show running-configuration command to display your Cisco 7304 router configuration settings, you can use the show interfaces fastethernet command and show interfaces gigabitethernet command, and the show controllers fastethernet command and show controllers gigabitethernet command to get detailed information on a per-port basis for your 4-Port 10/100 Fast Ethernet SPA or 2-Port 10/100/1000 Gigabit Ethernet SPA.
Verifying Per-Port Interface Status
To find detailed interface information on a per-port basis for the 4-Port 10/100 Fast Ethernet SPA, use the show interfaces fastethernet command. For a description of the command output, see Chapter 18, "Command Reference."
The following example provides sample output for interface port 1 (the second port), on the SPA located in the bottom subslot (1), of the MSC that is installed in slot 2 of the Cisco 7304 router:
Router# show interfaces fastethernet 2/1/1FastEthernet2/1/1 is up, line protocol is upHardware is SPA-4FE-7304, address is 00b0.64ff.5d80 (bia 00b0.64ff.5d80)Internet address is 192.168.50.1/24MTU 9216 bytes, BW 100000 Kbit, DLY 100 usec,reliability 255/255, txload 1/255, rxload 1/255Encapsulation ARPA, loopback not setKeepalive set (10 sec)Full-duplex, 100Mb/s, 100BaseTX/FXARP type: ARPA, ARP Timeout 04:00:00Last input 00:00:22, output 00:00:02, output hang neverLast clearing of "show interface" counters neverInput queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0Queueing strategy: fifoOutput queue: 0/40 (size/max)5 minute input rate 0 bits/sec, 0 packets/sec5 minute output rate 0 bits/sec, 0 packets/sec5 packets input, 320 bytesReceived 1 broadcasts (0 IP multicast)0 runts, 0 giants, 0 throttles0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored0 watchdog0 input packets with dribble condition detected8 packets output, 529 bytes, 0 underruns0 output errors, 0 collisions, 2 interface resets0 babbles, 0 late collision, 0 deferred2 lost carrier, 0 no carrier0 output buffer failures, 0 output buffers swapped outMonitoring Per-Port Interface Statistics
To find detailed status and statistical information on a per-port basis for the 4-Port 10/100 Fast Ethernet SPA, use the show controllers fastethernet command. For a description of the command output, see Chapter 18, "Command Reference."
The following example provides sample output for interface port 0 (the first port), on the SPA located in the top subslot (0), of the MSC that is installed in slot 4 of the Cisco 7304 router:
Router# show controllers fastethernet 4/0/0Interface FastEthernet4/0/0Hardware is SPA-4FE-7304Connection mode is auto-negotiationInterface state is up, link is upConfiguration is Auto Speed, Auto DuplexSelected media-type is RJ45Promiscuous mode is off, VLAN filtering is enabledMDI crossover status: MDIAuto-negotiation configuration and status:Auto-negotiation is enabled and is completedSpeed/duplex is resolved to 100 Mbps, full duplexAdvertised capabilities: 10M/HD 10M/FD 100M/HD 100M/FDPartner capabilities: 10M/HD 10M/FD 100M/HD 100M/FDMAC counters:Input: packets = 15, bytes = 1776FIFO full/reset removed = 0, error drop = 0Output: packets = 18, bytes = 2622FIFO full/reset removed = 0, error drop = 0Total pause frames: transmitted = 0, received = 0FPGA counters:Input: Total (good & bad) packets: 15, TCAM drops: 4Satisfy (host-backpressure) drops: 0, CRC drops: 0PL3 RERRs: 0Output: EOP (SPI4) errors: 0SPA carrier card counters:Input: packets = 11, bytes = 1476, drops = 0Output: packets = 18, bytes = 2550, drops = 0Egress flow control status: XONPer bay counters:General errors: input = 0, output = 0SPI4 errors: ingress dip4 = 0, egress dip2 = 0MAC destination address filtering table:Table entries: Total = 512, Used = 4, Available = 508Index MAC destination address Mask----- ----------------------- --------------1 0007.0ed3.ba80 ffff.ffff.ffff2 ffff.ffff.ffff ffff.ffff.ffff3 0100.0000.0000 0100.0000.00004 0100.0ccc.cccc ffff.ffff.ffffVLAN filtering table:Number of VLANs configured on this interface = 0Table entries: Total = 1024, Used = 2, Available = 1022Index VLAN identifier Enabled Tunnel----- --------------- ------- ------1 0 No No2 0 Yes NoPlatform details:PXF tif number: 0x10Configuration Examples
This section includes the following configuration examples:
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Basic Interface Configuration Example
The following example shows how to enter global configuration mode to specify the interface that you want to configure, configure an IP address for the interface, and save the configuration. This example configures interface port 1 (the second port) on the SPA located in the bottom subslot (1) of the MSC that is installed in slot 2 of the Cisco 7304 router:
!Enter global configuration mode
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Router# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.!
! Specify the interface address
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Router(config)# interface fastethernet 2/1/1
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! Configure an IP address
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Router(config-if)# ip address 192.168.50.1 255.255.255.0
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! Start the interface
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Router(config-if)# no shut
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! Save the configuration to NVRAM
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Router(config-if)# exit
Router# copy running-config startup-config
Media Type Configuration Example
The following example changes the default media type from RJ-45 to GBIC to support SFP module on the Gigabit Ethernet interface:
! Enter global configuration mode
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Router# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.Router(config)# interface gigabitethernet 4/1/0
!
! Configure the interface for fiber media
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Router(config-if)# media-type gbic
MAC Address Configuration Example
The following example changes the default MAC address on the interface to 1111.2222.3333:
!Enter global configuration mode
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Router# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.!
! Specify the interface address
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Router(config)# interface fastethernet 2/1/1
!
! Modify the MAC address
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Router(config-if)# mac-address 1111.2222.3333
MTU Configuration Example
The following example sets the interface MTU to 9216 bytes:
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!Enter global configuration mode
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Router# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.!
! Specify the interface address
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Router(config)# interface fastethernet 2/1/1
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! Configure the interface MTU
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Router(config-if)# mtu 9216
VLAN Configuration Example
The following example creates a subinterface number 268 on SPA interface port 2 (the third port), and configures the subinterface on the VLAN with ID number 269 using IEEE 802.1Q encapsulation:
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!Enter global configuration mode
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Router# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.!
! Specify the interface address
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Router(config)# interface fastethernet 4/1/2.268
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! Configure dot1Q encapsulation and specify the VLAN ID
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Router(config-subif)# encapsulation dot1q 269
Autonegotiation Configuration Examples
This section provides several examples including combining configuration parameters to force a specific setting while enabling autonegotiation for another setting, and also disabling autonegotiation support:
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Forcing Half-Duplex Mode and Autonegotiation of the Speed Configuration Example
For interface port 1 (the second port) of the SPA located in the bottom subslot (1) of the MSC that is installed in slot 2 of the Cisco 7304 router, the following example specifies advertisement of half-duplex support only, and either 10-Mbps or 100-Mbps capability during autonegotiation:
! Enter global configuration mode
!
Router# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.Router(config)# interface fastethernet 2/1/1
!
! Enable autonegotiation of the speed
! (This is the default setting)
!
Router(config-if)# speed auto
!
! Configure half-duplex
!
Router(config-if)# duplex half
With this configuration, the 4-Port 10/100 Fast Ethernet SPA advertises the following capabilities during autonegotiation:
•
•
Note
Forcing 10-Mbps Speed and Autonegotiation of the Duplex Configuration Example
For interface port 1 (the second port) of the SPA located in the bottom subslot (1) of the MSC that is installed in slot 2 of the Cisco 7304 router, the following example specifies advertisement of 10-Mbps support only, and either half-duplex or full-duplex capability during autonegotiation:
! Enter global configuration mode
!
Router# configure terminal
Router(config)# interface fastethernet 2/1/1
!
! Configure 10 Mbps speed
!
Router(config-if)# speed 10
!
! Enable autonegotiation of the duplex mode
! (This is the default setting)
!
Router(config-if)# duplex auto
With this configuration, the 4-Port 10/100 Fast Ethernet SPA advertises the following capabilities during autonegotiation:
•
•
Note
Disabling Autonegotiation on RJ-45 Interfaces Configuration Example
The following example specifies that interface port 1 (the second port) of the SPA located in the bottom subslot (1) of the MSC that is installed in slot 2 of the Cisco 7304 router, implements only full-duplex and 100-Mbps operation.
By specifying a particular value for both the duplex and speed commands, autonegotiation is disabled over the link for this interface. Therefore, the capabilities of the interface are not advertised.
! Enter global configuration mode
!
Router# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.Router(config)# interface fastethernet 2/1/1
!
! Disable autonegotiation of the speed
! Force 100 Mbps speed
!
Router(config-if)# speed 100
!
! Disable autonegotiation of the duplex mode
! Force full-duplex mode
!
Router(config-if)# duplex full
Disabling Autonegotiation on Fiber Interfaces Configuration Example
The following example disables autonegotiation on fiber interface port 0 (the first port) of the SPA located in the bottom subslot (1) of the MSC that is installed in slot 4 of the Cisco 7304 router.
The interface does not advertise duplex mode, speed, or flow control, but sets its configuration for full-duplex mode and 1000-Mbps speed.
! Enter global configuration mode
!
Router# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.Router(config)# interface gigabitethernet 4/1/0
!
! Configure the interface for fiber media
!
Router(config-if)# media-type gbic
!
! Disable autonegotiation on a fiber interface
!
Router(config-if)# no negotiation auto
Enabling Autonegotiation on Fiber Interfaces Configuration Example
The following example enables autonegotiation on fiber interface port 0 (the first port) of the SPA located in the bottom subslot (1) of the MSC that is installed in slot 4 of the Cisco 7304 router.
The interface advertises full-duplex mode, 1000-Mbps speed, and flow control.
! Enter global configuration mode
!
Router# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.Router(config)# interface gigabitethernet 4/1/0
!
! Configure the interface for fiber media
!
Router(config-if)# media-type gbic
!
! Disable autonegotiation on a fiber interface
!
Router(config-if)# negotiation auto
Posted: Tue Mar 15 15:47:52 PST 2005
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