Configuring a Dynamic Bridged Ethernet Interface

When you configure dynamic bridged Ethernet interfaces, you must assign a profile. You may optionally assign a subscriber identification.

To configure dynamic bridged Ethernet interfaces:

1. Configure a physical interface.

   host1(config)#interface atm 5/0

2. Configure an ATM subinterface.

   host1(config-if)#interface atm 2/0.1

3. Configure a PVC by specifying the VCD, the VPI, the VCI, and the encapsulation type.

   If you want the router to autodetect the encapsulation type, use the aal5autoconfig option.

   host1(config-subif)#atm pvc 10 100 22 aal5snap

   host1(config-subif)#atm pvc 10 100 22 aal5autoconfig

4. Do either of the following:
   • Configure the subinterface to detect and accept the dynamic bridged Ethernet encapsulation type with the default lockout time range, 1–300 seconds.

     host1(config-subif)#auto-configure bridgedEthernet

   • Configure the subinterface to detect and accept the dynamic bridged Ethernet encapsulation type with a nondefault lockout time range. For example, the following command configures 3600 seconds (1 hour) as the minimum lockout time and 7200 seconds (2 hours) as the maximum lockout time.

     host1(config-subif)#auto-configure bridgedEthernet lockout-time 3600 7200

5. Assign a profile to match the encapsulation type of bridged Ethernet.

   host1(config-subif)#profile bridgedEthernet foo

6. (Optional) Assign subscriber identification.

   host1(config-subif)#subscriber bridgedEthernet user charlie domain myisp password lucy

7. (Optional) Verify your configuration.

   host1#show atm subinterface atm 2/0.1

atm pvc

• Use to configure a PVC on an ATM interface. Select one of the following encapsulation types:
  • aal5autoconfig—Enables autodetection of the 1483 encapsulation (LLC/SNAP or VC multiplexed).
  • aal5snap—Specifies a LLC encapsulated circuit; the LLC/SNAP header precedes the protocol datagram.
  • aal5mux ip—Specifies a VC multiplexed circuit. This option is used for IP only.
• Example

  host1(config-subif)#atm pvc 6 0 11 aal5autoconfig

• Use the no version to remove the specified PVC.
• See atm pvc.

auto-configure

• Use to configure an ATM subinterface to support a dynamic interface. Specifies the types of dynamic encapsulation that the ATM 1483 subinterface detects and accepts.
• For detailed information about how to use this command, see auto-configure.
• Example 1—Enables autodetection for the bridged Ethernet encapsulation type using the default lockout time range, 1–300 seconds

  host1(config-subif)#auto-configure bridgedEthernet

• Example 2—Enables autodetection for the bridged Ethernet encapsulation type using a nondefault lockout time range of 3600–21600 seconds (1–6 hours)

  host1(config-subif)#auto-configure bridgedEthernet lockout-time 3600 21600

• Example 3—Disables encapsulation type lockout for the bridged Ethernet encapsulation type

  host1(config-subif)#auto-configure bridgedEthernet lockout-time none

• Example 4—Either command reenables encapsulation type lockout for the bridged Ethernet encapsulation type using the default lockout time range

  host1(config-subif)#auto-configure bridgedEthernet

  host1(config-subif)#no auto-configure bridgedEthernet lockout-time

• Example 5—Permanently locks out the bridged Ethernet encapsulation type until the auto-configure bridgedEthernet command is issued

  host1(config-subif)#no auto-configure bridgedEthernet

• Use the no version to terminate detection of the specified encapsulation type or, if the lockout-time keyword is specified, to restore the lockout time range to its default value, 1–300 seconds.
• See auto-configure.

interface atm

• Use to select an ATM interface or ATM 1483 subinterface.
• For information about specifying the ATM interface or subinterface, see interface atm.
• Examples

  host1(config)#interface atm 5/0.1

  host1(config)#interface atm 4/0/2

• Use the no version to remove the interface or subinterface.
• See interface atm.

profile

• Use to assign a profile.
• You must specify the encapsulation type to which the profile applies: bridgedEthernet, ip, ppp, pppoe , or any.
• Specify a profile name with up to 80 alphanumeric characters.
• Example

  host1(config-subif)#profile bridgedEthernet foo

• Use the no version to remove a profile assignment.
• See profile.

subscriber

• Use to configure a local subscriber on the E-series router to support authentication and configuration from RADIUS for a dynamic bridged Ethernet or IPoA interface.
• For detailed information about how to use this command, see subscriber.
• Example

  host1(config-subif)#subscriber bridgedEthernet user-prefix charlie domain myisp password-prefix lucy

• Use the no version to remove the subscriber.
• See subscriber.

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