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Configuring the 12E/2FE Interfaces

Configuring the 12E/2FE Interfaces

To continue your 12E/2FE port adapter installation, you must install the port adapter cables and configure the 12E/2FE interfaces. The instructions that follow apply to all supported platforms. Minor differences between the platforms are noted. This chapter contains the following sections:

Using the EXEC Command Interpreter

You modify the configuration of your router through the software command interpreter called the EXEC (also called enable mode). You must enter the privileged level of the EXEC command interpreter with the enable command before you can use the configure command to configure a new interface or to change the existing configuration of an interface. The system prompts you for a password if one has been set.

The system prompt for the privileged level ends with a pound sign (#) instead of an angle bracket (>). At the console terminal, use the following procedure to enter the privileged level:

Step 1 At the user-level EXEC prompt, enter the enable command. The EXEC prompts you for a privileged-level password as follows:

Step 2 Enter the password (the password is case-sensitive). For security purposes, the password is not displayed.

Step 3 When you enter the correct password, the system displays the privileged-level system prompt (#):

Proceed to the "Configuring the 12E/2FE Interfaces" section to configure the new interfaces.

Configuring the 12E/2FE Interfaces

If you installed a new 12E/2FE port adapter or if you want to change the configuration of an existing interface, you must use the privileged-level configure command. If you replaced a 12E/2FE port adapter that was previously configured, the system will recognize the new 12E/2FE port adapter interfaces and bring each of them up in their existing configuration.

After you verify that the new 12E/2FE port adapter is installed correctly (the enabled LED goes on), use the configure command to configure the new interfaces. Be prepared with the information you will need, such as the following:

For complete descriptions of interface commands and the configuration options available for Cisco  7200 series-related interfaces and Cisco  uBR7246 interfaces, refer to the publications listed in the "For More Information" section.

Identifying Port Adapter Slot and Interface Port Numbers

In a Cisco  7200 series router (see Figure 6-1) or a Cisco  uBR7246 (see Figure 6-2) physical port addresses specify the actual physical location of each interface port on the router. This address is composed of a two-part number in the format port adapter slot number/interface port number as follows:

Note For the Cisco  7206 router shelf, physical port addresses are composed of a three-part number in the format shelf number/port adapter slot number/interface port number, where the shelf number is a number assigned to the Cisco  7206 router shelf during the initial configuration of the Cisco AS5800 Universal Access Server. A Cisco  AS5800 Universal Access Server can consist of several shelves; therefore, each shelf is assigned a number.

Interface ports on the 12E/2FE port adapter maintain the same address regardless of whether other port adapters are installed or removed. However, when you move a port adapter to a different slot, the port adapter slot number in the address changes to reflect the new slot number.

Figure 6-1 shows the interface ports of a 12E/2FE port adapter in slot  3 and slot  4 of a Cisco  7206 router. The port adapter slot numbers start with 1 and continue through 6 for the Cisco 7206, and continue through 4 for the Cisco 7204 (slot  0 is always reserved for the optional Fast Ethernet port on the I/O controller---if present). The individual interface port numbers always begin with 0. The number of additional ports depends on the number of ports on a port adapter. Port adapters can occupy any port adapter slot; there are no restrictions.

For example, the addresses of the interface ports on the 12E/2FE port adapter in chassis slot  3 and slot  4 are 3/0 through 3/13 (chassis slot  3 and interface ports 0 through 13). If the 12E/2FE port adapter was in port adapter slot  5 and slot  6, these same interface ports would be numbered 5/0. For example, the addresses of the interface ports on the 12E/2FE port adapter in port adapter slot  1 and slot  2 are 1/0 through 1/13 (chassis slot  1 and interface ports 0 through 13).


Figure 6-1: 12E/2FE Interface Port Number Example (Cisco 7206 Shown)


.

Note For the Cisco  7206 router shelf, the address of the 12E/2FE interfaces in chassis slot  3 and slot  4 would be x/3/0 through x/3/13, where x is the number assigned to the router shelf during the initial configuration of the Cisco  AS5800 Universal Access Server.

Figure 6-2 shows the interface ports of a 12E/2FE port adapter in slot  1 and slot  2 of a Cisco  uBR7246. The port adapter slots are numbered slot  1 and slot  2 (slot  0 is always reserved for the optional Fast Ethernet port on the I/O controller---if present). The individual interface port numbers always begin with 0. The number of additional ports depends on the number of ports on a port adapter. Port adapters can occupy any port adapter slot; there are no restrictions.

For example, the addresses of the interface ports on the 12E/2FE port adapter in chassis slot  1 and slot  2 are 3/0 through 3/13 (chassis slot  3 and interface ports 0 through 13).


Figure 6-2: 12E/2FE Interface Port Number Example (Cisco  uBR7246 Shown)


Note For dual-wide port adapters, such as the 12E/2FE, the port adapter slot number in the physical port addresses is the left port adapter slot (slot  1 in a Cisco  uBR7246; slot  1 or slot  3 in a Cisco  7204; and slot  1, slot  3, or slot  5 in a Cisco  7206).

You can identify interface ports by physically checking the port adapter slot/interface port location on the front of the router or by using show commands to display information about a specific interface or all interfaces in the router.

Shutting Down an Interface

Before you replace an interface cable, replace port adapters, or remove an interface that you will not replace, use the shutdown command to shut down (disable) the interfaces to prevent anomalies from occurring when you reinstall the new or reconfigured port adapters. When you shut down an interface, it is designated administratively down in the show command displays. Follow these steps to shut down an interface:

Note Interface port numbers  0 and  1 of the 12E/2FE port adapter are identified by the system as Fast Ethernet interfaces, while interface port numbers  2 through  13 are identified as Ethernet interfaces.

Step 1 Enter the privileged level of the EXEC command interpreter. See the
"Using the EXEC Command Interpreter" section

Step 2 At the privileged-level (enable) prompt, enter configuration mode and specify that the console terminal will be the source of the configuration commands as follows:

Step 3 Specify the slot/port address of the interface you want shut down by entering the interface fastethernet (for interface port numbers  0 and  1) or interface ethernet (for interface port numbers  2 through  13) command. The following example is for the first 12E/2FE interface in port adapter slot  1:

Step 4 Enter shutdown and then exit to return to configuration mode.

Step 5 Repeat Step 3 and Step 4 to shut down any additional existing interfaces. When you have finished, press Ctrl-Z (hold down the Control key while you press Z) or enter end to exit configuration mode and return to the EXEC command interpreter prompt as follows:

Step 6 Save the new configuration to memory as follows:

The system displays an OK message when the configuration has been stored.

Step 7 Verify new interfaces are now in the correct state (shutdown) by entering the show interface fastethernet (for interface port numbers  0 and  1) or show interface ethernet (for interface port numbers  2 through  13) command. The follow example is for the first 12E/2FE interface in port adapter slot  1:

Step 8 Reenable the interfaces. To do so, repeat the previous steps, but use the no shutdown command in Step 4; then write the new configuration to memory as follows:

For complete descriptions of software configuration commands, refer to the documentation resources listed in the "For More Information" section.

Configuring Interfaces

This section provides instructions for a basic configuration: enabling a controller, specifying a bridge group, and specifying IP routing. You might also need to enter other configuration commands depending on the requirements for your system configuration and the protocols you plan to route on the interface. For complete descriptions of configuration subcommands and the configuration options available, refer to the documentation resources listed in the "For More Information" section.

Note If you plan to use a 12E/2FE interface to boot from a network (TFTP) on a Cisco  7200 series router, ensure that the interface is configured for a loop-free environment, an IP address is configured for the interface's bridge-group virtual interface, and system boot image 11.2(10)P, 11.3(2)T, or 11.3(2)AA is installed on your router (use the show version command to view your router's system boot image).

If you plan to use a 12E/2FE interface to boot from a network (TFTP) on a Cisco  uBR7246, ensure that the interface is configured for a loop-free environment, an IP address is configured for the interface's bridge-group virtual interface, and system boot image 11.3(5)T is installed on your router (use the show version command to view your router's system boot image).

Before booting from the network server, use the bridge-group bridge-group number spanning-disabled command to disable the Spanning-Tree Protocol configured on the interface to keep the TFTP server from timing out and closing the connection.

For detailed information about booting from a network (TFTP), loading system images from a network server, and configuring the Spanning-Tree Protocol on your Cisco  7200 series router, refer to the Configuration Fundamentals Configuration Guide and Bridging and IBM Networking Configuration Guide publications. See the "For More Information" section for more information.

In the following procedure, press the Return key after each step unless otherwise noted. At any time you can exit the privileged level and return to the user level by entering disable at the prompt as follows:

Router# disable

Router>
Note Interface port numbers  0 and  1 of the 12E/2FE port adapter are identified by the system as Fast Ethernet interfaces, while interface port numbers  2 through  13 are identified as Ethernet interfaces.

Step 1 At the privileged-level prompt, enter configuration mode and specify that the console terminal will be the source of the configuration subcommands as follows:

Step 2 Specify a bridge-group number and Spanning-Tree Protocol by entering the bridge-group command. The following examples are for bridge group  10, 20, and 30, and the IEEE Spanning-Tree Protocol:

Step 3 Assign an interface to a bridge group by entering the interface fastethernet (for interface port numbers  0 and  1) or interface ethernet (for interface port numbers  2 through  13) command, and then the bridge-group command.

After assigning an interface to a bridge group, change the shutdown state to up and return to configuration mode to enable the interface. The following examples are for the first four interfaces of a 12E/2FE port adapter in port adapter slot  3, and the bridge groups  10  and  20.

Step 4 Repeat Step 3 for the remaining 12E/2FE interfaces and bridge groups.

Step 5 If you plan to enable integrated routing and bridging on the bridge groups, enter the command bridge irb as follows:

Step 6 Enable a virtual interface on a bridge group by entering the interface bvi command; then assign an IP address and subnet mask to the bridge-group virtual interface by entering the ip address command.

After enabling and assigning an IP address and subnet mask to the bridge-group virtual interface, change the shutdown state to up and return to configuration mode to enable the bridge-group virtual interface. The following example is for bridge group 10:

Step 7 Repeat Step 6 for the remaining bridge groups.

Step 8 Specify the protocol to route in each bridge group by entering the command bridge route {ip | ipx | appletalk} as follows:

Step 9 Repeat Step 8 for the remaining bridge groups.

Step 10 When you have included all of the configuration commands to complete the configuration, press Ctrl-Z (hold down the Control key while you press Z) or enter end to exit configuration mode and return to the EXEC command interpreter prompt as follows:

Step 11 Write the new configuration to nonvolatile memory as follows:

This completes the procedure for creating a basic configuration. Proceed to the "Configuring the Transmission Mode on 12E/2FE Interfaces" section for transmission mode configuration examples, or proceed to the "Checking the Configuration" section to check the 12E/2FE interface configurations using show commands.

Configuring the Transmission Mode on 12E/2FE Interfaces

By default, all 12E/2FE interfaces (port  0 through port  13) support autosensing and autonegotiation of the proper transmission mode (half-duplex or full-duplex) with an attached device. If an attached device does not support autosensing and autonegotiation of the proper transmission mode, the 12E/2FE interfaces attached to the device automatically enter half-duplex mode.

Use the show running-config command to determine if a 12E/2FE interface is autosensing and autonegotiating the proper transmission mode with an attached device. If a 12E/2FE interface is autosensing and autonegotiating the transmission mode, the output from the show running-config command does not display transmission mode information. If a 12E/2FE interface is configured for half-duplex or full-duplex mode, the output from the show running-config command displays the configured mode.

The first example below shows the first 12E/2FE interface port (interface port 0) in port adapter slot  3 is autosensing and autonegotiating the transmission mode with an attached device; the second example shows the same interface configured for half-duplex mode:

Router# show running-config

    (display text omitted)
interface FastEthernet3/0
 no ip address
 bridge-group 1
    (display text omitted)
Router# show running-config

    (display text omitted)
interface FastEthernet3/0
 no ip address
 half-duplex
 bridge-group 1
    (display text omitted)

Use the full-duplex and half-duplex commands to change the transmission mode of a 12E/2FE interface. After changing the transmission mode, use the show interfaces command to verify the interface's transmission mode.

Note If you use the full-duplex and half-duplex commands to change the transmission mode of the first two 12E/2FE interfaces (port  0 and port  1), the transmission speed of the two 12E/2FE interfaces automatically defaults to 100  Mbps. The first two 12E/2FE interfaces only operate at 10  Mbps when the interfaces are autosensing and autonegotiating the proper connection speed (10  Mbps or 100  Mbps) with an attached device.

In the following example, full-duplex mode is configured on the first 12E/2FE interface port (interface port 0) in port adapter slot  3:

Router# config t

Enter configuration commands, one per line. End with CNTL/Z.
Router(config)# interface fastethernet 3/0

Router(config-if)# full-duplex

Router(config-if)# no shutdown

Router(config-if)# exit

Router(config)#
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet3/0, changed

state to up
%LINK-3-UPDOWN: Interface FastEthernet3/0, changed state to up
Router# sh interface fastethernet 3/0

FastEthernet0/0 is administratively up, line protocol is up
    (display text omitted)
	Full-Duplex, 100BaseTX
    (display text omitted)

Use the no full-duplex command to return the interface to autosensing and autonegotiation of the proper transmission mode with the attached device.

In the following example, half-duplex mode is configured on the same 12E/2FE interface port as in the previous example:

Router# config t

Enter configuration commands, one per line. End with CNTL/Z.
Router(config)# interface fastethernet 3/0

Router(config-if)# half-duplex

Router(config-if)# no shutdown

Router(config-if)# exit

Router(config)#
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet3/0, changed

state to up
%LINK-3-UPDOWN: Interface FastEthernet3/0, changed state to up
Router# sh interface fastethernet 3/0

FastEthernet0/0 is administratively up, line protocol is up
    (display text omitted)
	Half-Duplex, 100BaseTX
    (display text omitted)

Use the no half-duplex command to return the interface to autosensing and autonegotiation of the proper transmission mode with the attached device.

Note For the Cisco  7206 router shelf, the interface specified in the above examples requires a shelf number in the format interface or show interface type shelf number/port adapter slot/interface.

Checking the Configuration

After configuring the new interface, use the show commands to display the status of the new interface or all interfaces, and use the ping command to check connectivity.

Using show Commands to Verify the New Interface Status

The following steps use show commands to verify that the new interfaces are configured and operating correctly.

Step 1 Display the system hardware configuration with the show version command. Ensure that the list includes the new interfaces.

Step 2 Display all the current port adapters and their interfaces with the show controllers command. Verify that the new 12E/2FE port adapter appears in the correct slot.

Step 3 Specify one of the new interfaces with the show interface fastethernet (for interface port numbers  0 and  1) or show interface ethernet (for interface port numbers  2 through  13) slot/interface command and verify that the first line of the display specifies the interface with the correct slot number. Also verify that the interface and line protocol are in the correct state: up or down.

Step 4 Display all bridge groups in the system and their interfaces with the show bridge group command. Verify that the appropriate interfaces are configured for each bridge group.

Step 5 Display the routed protocol configured for an interface with the show interfaces fastethernet or ethernet slot/interface irb command. Verify that the correct protocol is configured for the interface.

Step 6 Display the protocols configured for the entire system and specific interfaces with the show protocols command. If necessary, return to configuration mode to add or remove protocol routing on the system or specific interfaces.

Step 7 Display the running configuration file with the show running-config command. Display the configuration stored in NVRAM using the show startup-config command. Verify that the configuration is accurate for the system and each interface.

Step 8 Display the Layer  2 learned addresses for an interface with the show pas eswitch addresses fastethernet or ethernet slot/interface command.

If the interface is down and you configured it as up, or if the displays indicate that the hardware is not functioning properly, ensure that the network interface is properly connected and terminated. If you still have problems bringing up the interface, contact a customer service representative for assistance.

The following example of the show interfaces fastethernet command shows all the information specific to the first 12E/2FE interface port (interface port 0) in port adapter slot  3:

Router# sh int fastethernet 3/0

FastEthernet3/0 is up, line protocol is up 
  Hardware is TSWITCH, address is 00e0.f7a4.5130 (bia 00e0.f7a4.5130)
  MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, rely 255/255, load 1/255
  Encapsulation ARPA, loopback not set, keepalive set (10 sec)
  Half-duplex, 100BaseTX
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input 00:05:30, output 00:00:00, output hang never
  Last clearing of "show interface" counters never
  Queueing strategy: fifo
  Output queue 0/40, 0 drops; input queue 0/75, 0 drops
  5 minute input rate 0 bits/sec, 0 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec
     312 packets input, 18370 bytes, 0 no buffer
     Received 216 broadcasts, 0 runts, 0 giants, 0 throttles
     3 input errors, 0 CRC, 0 frame, 0 overrun, 3 ignored, 0 abort
     0 input packets with dribble condition detected
     15490 packets output, 1555780 bytes, 0 underruns
     2 output errors, 0 collisions, 2 interface resets
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier
     2 output buffer failures, 0 output buffers swapped out
Note For the Cisco  7206 router shelf, the show interfaces command requires a shelf number in the format show interfaces type shelf number/port adapter slot/interface.

The show version (or show hardware) command displays the configuration of the system hardware (the number of each interface type installed), the software version, the names and sources of configuration files, and the boot images. Following is an example of the show version command:

Router# show version

Cisco Internetwork Operating System Software
IOS (tm) 7200 Software (C7200-J-M), Version 11.2(10)p RELEASED SOFTWARE
Copyright (c) 1986-1997 by cisco Systems, Inc.
Compiled Wed 23-Apr-97 15:11 by rmontino
Image text-base: 0x60008890, data-base: 0x608E0000
ROM: System Bootstrap, Version 11.2(10)p RELEASE SOFTWARE
ROM: 7200 Software (C7200-BOOT-M), 11.2(10)p RELEASE SOFTWARE
Router uptime is 4 hours, 22 minutes
System restarted by reload
System image file is "c7200-j-mz", booted via slot0
cisco 7206 (NPE150) processor with 26624K/6144K bytes of memory.
R4700 processor, Implementation 33, Revision 1.0 (Level 2 Cache)
Last reset from power-on
Bridging software.
X.25 software, Version 2.0, NET2, BFE and GOSIP compliant.
TN3270 Emulation software (copyright 1994 by TGV Inc).
Chassis Interface.
32 Ethernet/IEEE 802.3 interface(s)
2 FastEthernet/IEEE 802.3 interface(s)
1024K bytes of packet SRAM memory.
 
16384K bytes of Flash PCMCIA card at slot 0 (Sector size 128K).
8192K bytes of Flash PCMCIA card at slot 1 (Sector size 128K).
4096K bytes of Flash internal SIMM (Sector size 256K).
Configuration register is 0x0

To determine which type of port adapter is installed in your system, enter the show diag  slot command. Specific port adapter information is displayed, as shown in the following example of an 12E/2FE port adapter in chassis slot  3:

Router# show diag 3

Slot 3:
        Ethernet Switch port adapter, 14 ports
        Port adapter is analyzed 
        Port adapter insertion time 20:51:22 ago
        Hardware revision 1.0 	Board revision AO
        Serial number     4294967295    Part number 	800-02611-05
        Test history      0xFF          RMA number     000-000-000
        EEPROM format version 255
        EEPROM contents (hex):
          0x20: FF 3F FF FF FF FF FF FF FF FF FF FF FF FF FF FF
          0x30: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF

To display all bridge groups in the system and the interfaces configured for each bridge group, enter the show bridge group command. The following examples are for bridge group  30 and bridge group  40 of a 12E/2FE port adapter in slot  3:

Router# show bridge group 
Bridge Group 30 is running the IEEE compatible Spanning Tree protocol
   Port 19 (FastEthernet3/0) of bridge group 30 is forwarding
   Port 20 (FastEthernet3/1) of bridge group 30 is forwarding
   Port 21 (Ethernet3/2) of bridge group 30 is forwarding
   Port 22 (Ethernet3/3) of bridge group 30 is forwarding
   Port 23 (Ethernet3/4) of bridge group 30 is forwarding
   Port 24 (Ethernet3/5) of bridge group 30 is forwarding
   Port 25 (Ethernet3/6) of bridge group 30 is forwarding
 
Bridge Group 40 is running the IEEE compatible Spanning Tree protocol
 
   Port 26 (Ethernet3/7) of bridge group 40 is down
   Port 27 (Ethernet3/8) of bridge group 40 is down
   Port 28 (Ethernet3/9) of bridge group 40 is down
   Port 29 (Ethernet3/10) of bridge group 40 is down
   Port 30 (Ethernet3/11) of bridge group 40 is down
   Port 31 (Ethernet3/12) of bridge group 40 is down
   Port 32 (Ethernet3/13) of bridge group 40 is down

To display the routed protocol configured for an interface, enter the show interfaces fastethernet or ethernet slot/interface irb command. The following example shows that IP is configured for the first 12E/2FE interface in port adapter in slot  3:

Router# show int fastethernet 3/0 irb

FastEthernet3/0
 Routed protocols on FastEthernet3/0:
  ip       
 Bridged protocols on FastEthernet3/0:
  appletalk  clns       decnet     ip       
  vines      apollo     ipx        xns      
 Software MAC address filter on FastEthernet3/0
  Hash Len    Address      Matches  Act      Type
  0x00:  0 ffff.ffff.ffff         0 RCV Physical broadcast
  0x2A:  0 0900.2b01.0001         0 RCV DEC spanning tree
  0xC2:  0 0180.c200.0000         0 RCV IEEE spanning tree
  0xC7:  0 00e0.f7a4.5130         0 RCV Interface MAC address
  0xC7:  1 00e0.f7a4.5130         0 RCV Bridge-group Virtual Interface
Note For the Cisco  7206 router shelf, the show interfaces irb command requires a shelf number in the format show interfaces type shelf number/port adapter slot/interface irb.

To display the Layer  2 learned addresses for an interface, enter the show pas eswitch addresses fastethernet or ethernet slot/interface command. The following example shows that the first 12E/2FE interface (listed below as port  0) in port adapter slot  3 has learned the Layer  2 address 00e0.f7a4.5100 for bridge group  30 (listed below as BG 30):

Router# show pas eswitch addresses fastethernet 3/0

U 00e0.f7a4.5100, AgeTs 56273 s, BG 30 (vLAN 0), Port 0
Note For the Cisco  7206 router shelf, the show pas eswitch addresses fastethernet command requires a shelf number in the format show pas eswitch addresses type shelf number/port adapter slot/interface.

To determine if a 12E/2FE interface is configured for cut-through packet switching (store-and-forward is the default for all 12E/2FE interfaces), enter the show running-config command. If a 12E/2FE interface is configured for store-and-forward packet switching, output from the show running-config command does not display switching information.

In the following example, the first 12E/2FE interface port (interface port 0) in port adapter slot  3 is configured for cut-through packet switching:

Router# show running-config

    (display text omitted)
interface FastEthernet3/0
 no ip address
	cut-through
 bridge-group 1
    (display text omitted)

For complete command descriptions and examples for the Cisco 7200 series routers and the Cisco  uBR7246, refer to the documentation resources listed in the "For More Information" section.

Using the ping Command

The packet internet groper (ping) command allows you to verify that an interface port is functioning properly and to check the path between a specific port and connected devices at various locations on the network. This section provides brief descriptions of the ping command. After you verify that the system has booted successfully and is operational, you can use this command to verify the status of interface ports. Refer to the documentation resources listed in the "For More Information" section, for detailed command descriptions and examples.

The ping command sends echo request packets out to a remote device at an IP address that you specify. After sending an echo request, the command waits a specified time for the remote device to reply. Each echo reply is displayed as an exclamation point (!) on the console terminal; each request that is not returned before the specified timeout is displayed as a period (.). A series of exclamation points (!!!!!) indicates a good connection; a series of periods (.....) or the messages [timed out] or [failed] indicate that the connection failed.

Following is an example of a successful ping command to a remote server with the address 1.1.1.10:

Router# ping 1.1.1.10

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echoes to 1.1.1.10, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/15/64 ms
Router#

If the connection fails, verify that you have the correct IP address for the destination and that the device is active (powered on), and repeat the ping command.

For complete descriptions of interface subcommands and the configuration options available for Cisco  7200 series-related interfaces and functionality, and Cisco  uBR7246 interfaces and functionality, refer to the documentation resources listed in the "For More Information" section.

Configuring Bridge Groups Using the 12E/2FE VLAN Configuration WebTool on the Cisco  7200 Series Routers

The 12E/2FE VLAN Configuration WebTool, shown in Figure 6-3, is a Web browser-based Java applet that displays configured interfaces and bridge groups for 12E/2FE port adapters installed in Cisco routers. The WebTool allows you to create and delete bridge groups (also referred to as VLANs), add and remove 12E/2FE interfaces from bridge groups, assign colors to bridge groups and 12E/2FE interfaces, administratively shut down (disable) and bring up (enable) 12E/2FE interfaces, and view the bridge-group status of each 12E/2FE interface.

Note The Cisco  7206 as a router shelf in a Cisco  AS5800 Universal Access Server and the Cisco  uBR7246 do not support the 12E/2FE VLAN Configuration WebTool.

Figure 6-3: 12E/2FE VLAN Configuration WebTool


You can access the 12E/2FE VLAN Configuration WebTool from your router's home page. See the "Accessing the 12E/2FE VLAN Configuration WebTool" section for instructions.

Note You must use a Java-enabled Web browser to access the 12E/2FE VLAN Configuration WebTool from your router's home page.

Accessing the 12E/2FE VLAN Configuration WebTool

All Cisco routers running Release 11.0 or later versions of the Cisco   IOS software have a home page. If your router has an installed 12E/2FE port adapter, you can access the 12E/2FE VLAN Configuration WebTool from the router's home page.

Note All Cisco router home pages are password protected. Contact your network administrator if you do not have the name or password for your Cisco  7200 series router or Cisco  uBR7246.

Complete the following steps to access the WebTool from your router's home page:

Step 1 Enter the name of your router in the URL field of your Web browser and press Return. The browser prompts you for the router's password.

Step 2 Enter the router's password. The browser displays the router's home page. (See Figure 6-4.)


Figure 6-4: Example Home Page for a Cisco 7200 Series Router (Cisco  7206 Shown)


Step 3 At the router's home page, select "VLAN Configuration WebTool" in the first list of hypertext links. The browser displays one hypertext link for each 12E/2FE port adapter installed in the router. (See Figure 6-5.)


Figure 6-5: Installed 12E/2FE Port Adapters


Step 4 Select the hypertext link for an installed 12E/2FE port adapter. The browser launches the WebTool for the selected 12E/2FE port adapter. (See Figure 6-3.)

This completes the procedure for accessing the 12E/2FE VLAN Configuration WebTool.

Creating a Bridge Group

Complete the following steps to create a new bridge group:

Step 1 In the WebTool, select the Create option from the Bridge-Group pull-down menu. (See Figure 6-6.)

The Create New Bridge-Group dialog box appears. (See Figure 6-7.)


Figure 6-6: 12E/2FE VLAN Configuration WebTool Pull-Down Menu


Step 2 In the Create New Bridge-Group dialog box, enter the new bridge-group number and select OK.

After entering the new bridge-group number and selecting OK, the status line of the WebTool indicates that the new bridge group was created, and the new bridge-group number is listed in the WebTool's configured Bridge-Groups list box. (See Figure 6-8.)


Figure 6-7: Create New-Bridge Group Dialog Box



Figure 6-8: Verifying a New Bridge Group


Step 3 Repeat Step 1 through Step 2 for additional bridge groups.

Step 4 Save the change by selecting the Save Config option from the Bridge-Group pull-down menu. (See Figure 6-6.)

This completes the procedure for creating a new bridge group using the 12E/2FE VLAN Configuration WebTool.

Assigning a Color to a New Bridge Group

The WebTool allows you to assign a color to four of the router's configured bridge groups and their 12E/2FE interfaces so that you can easily identify which 12E/2FE interfaces are assigned to a bridge group.

Note While the WebTool's configured Bridge-Groups list box displays all bridge groups configured on the router, you can only assign a color to four bridge groups at a time.

Complete the following steps to assign a color to a new bridge group:

Step 1 Select the new bridge group from the configured Bridge-Groups list box. The status line of the WebTool prompts you to assign the bridge group to a color. (See Figure 6-9.)


Figure 6-9: Selecting the New Bridge Group


Step 2 After selecting the bridge group from the Bridge-Groups list box, select one of the Bridge-Groups colored buttons.

The bridge group's number is listed in the selected button, the status line of the WebTool indicates that the colored button represents the new bridge group, and the color of the button is applied to the bridge group's 12E/2FE interfaces. (See Figure 6-10.)


Figure 6-10: Assigning a Color to the New Bridge Group


Step 3 Repeat Step 1 and Step 2 for additional bridge groups.

This completes the procedure for assigning a color to a new bridge group using the 12E/2FE VLAN Configuration WebTool.

Adding an Interface to a Bridge Group

The following procedure explains how to add a 12E/2FE interface to a bridge group. Before adding a 12E/2FE interface to a bridge group, make sure the desired bridge group is listed in the WebTool's Bridge-Groups list box and assigned to one of the Bridge-Groups colored buttons. See earlier sections for instructions.

In Figure 6-11, bridge group 1 is listed in the Bridge-Groups list box and is assigned to the first Bridge-Groups colored button.

Note Placing the cursor over a 12E/2FE interface displays the bridge group and administrative status of the interface in the status line of the WebTool. In Figure 6-11, the first 12E/2FE interface (FastEthernet5/0) is not assigned to a bridge group and is administratively down.

Figure 6-11: Selecting an Interface


Step 1 After verifying that the desired bridge group is listed in the Bridge-Groups list box and assigned to a Bridge-Group button, select the 12E/2FE interface you want to add, and then select the Bridge-Group button.

In Figure 6-12, 12E/2FE interface 5/0 is added to bridge group 1.


Figure 6-12: Verifying an Added Interface


Step 2 Make sure the status line of the WebTool indicates that the interface was added to the correct bridge group.

Step 3 Bring up the interface by selecting the administrative check box below the interface. (See Figure 6-13.)


Figure 6-13: Bringing Up an Interface


Step 4 Repeat Step 1 through Step 3 for additional interfaces and bridge groups.

Step 5 Save the change by selecting the Save Config option from the Bridge-Group pull-down menu. (See Figure 6-6.)

This completes the procedure for adding a 12E/2FE interface to a bridge group.

Removing an Interface From a Bridge Group

Complete the following steps to remove a 12E/2FE interface from a bridge group:

Step 1 In the WebTool, select the 12E/2FE interface you want to remove.

Step 2 After selecting the 12E/2FE interface you want to remove, select the None option (next to the Bridge-Groups colored buttons). (See Figure 6-14.)


Figure 6-14: Verifying the Removed Interface


Step 3 Repeat Step 1 and Step 2 for additional interfaces.

Step 4 Save the change by selecting the Save Config option from the Bridge-Group pull-down menu. (See Figure 6-6.)

This completes the procedure for removing a 12E/2FE interface from a bridge group.

Deleting a Bridge Group

Complete the following steps to delete a bridge group:

Step 1 In the WebTool, select the Delete option from the Bridge-Group pull-down menu. (See Figure 6-6.) The Delete Bridge-Group dialog box appears. (See Figure 6-15.)

Step 2 In the Delete Bridge-Group dialog box, enter the bridge-group number and select OK.


Figure 6-15: Delete a Bridge-Group Dialog Box


Step 3 After entering the bridge-group number and selecting OK in the Delete Bridge-Group dialog box, make sure the status line of the WebTool indicates that the bridge group was removed and that the removed bridge group is not listed in the Bridge-Groups list box. (See Figure 6-16.)


Figure 6-16: Verifying a Deleted Bridge Group


Step 4 Repeat Step 1 through Step 3 for additional bridge groups.

Step 5 Save the change by selecting the Save Config option from the Bridge-Group pull-down menu. (See Figure 6-6.)

This completes the procedure for deleting a bridge group.

For additional information about accessing your router's home page and using the Cisco Web browser interface, refer to the "Understanding the User Interface" chapter of the Configuration Fundamentals Configuration Guide.


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