BCP Support on MLPPP

BCP Support on MLPPP

This feature module describes how to configure Bridge Control Protocol (BCP) Support over Multilink PPP (MLPPP).

Finding Feature Information

Your software release may not support all the features documented in this module. For the latest feature information and caveats, see the release notes for your platform and software release. To find information about the features documented in this module, and to see a list of the releases in which each feature is supported, see the feature information table at the end of this module.

Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to http:/​/​www.cisco.com/​go/​cfn. An account on Cisco.com is not required.

Information About BCP Support on MLPPP

The BCP, as described in RFC 3518, is responsible for configuring, enabling and disabling the bridge protocol modules on both ends of the point-to-point link. The BCP feature enables forwarding of Ethernet frames over serial networks, and provides a high-speed extension of enterprise LAN backbone traffic through a metropolitan area.

When BCP is supported on MLPPP, it enables transport of Ethernet Layer 2 frames through MLPPP. In the following diagram, Bridge-A is connected to Bridge-B using MLPPP. The MLPPP bundle acts as a trunk link connecting Bridge-A and Bridge-B, transporting multiple VLANs. Using this feature, the hosts in VLAN 100, who are connected to Bridge-A, can talk to the hosts in VLAN 200, who are connected to Bridge-B.

Figure 1. BCP over MLPPP

Supported Profiles and Protocols

  • Ethernet II frames
  • 802.1Q tagged frames
  • IPv4 packets
  • Frame sizes from 64 to 1522 octets

Quality of Service

The Ethernet Layer 2 traffic is classified on the egress at the Multilink interface based on IP DSCP or VLAN CoS bits. Based on this classification, egress policing (bandwidth percent or priority percent) is achieved. You can also re-mark the QoS field. The following table lists the options available for re-marking.

Table 1 Re-Marking Options
IP DSCP VLAN CoS or PCP Bits

Set IP DSCP (re-mark IP DSCP)

Set IP DSCP

Set VLAN QoS or Priority Code Point (PCP) Bits

Set VLAN CoS Bits (re-mark VLAN CoS or PCP Bits)

Bandwidth Percent or Priority Percent

Bandwidth Percent or Priority Percent

Bridging and Routing

Both routing and bridging can co-exist on the same MLPPP interface. Routing is achieved on the MLPPP interface by running BCP after configuring an IP address on the SVI.


Note
Configuring IP address on the SVI of the MLPPP interface does not bring up the IP Control Protocol (IPCP).

For information on configuring the IP address on the SVI of the MLPPP interface, see the “Enabling Routing on the MLPPP Interface Running BCP” section.

How to Configure BCP Support on MLPPP

Configuring Multiple EFPs Bridged Through the Same Link

To bridge multiple EFPs through the same multilink, you should create two EFPs and add them to the multilink.

To configure an EFP and a multilink, complete the following tasks:

Configuring an EFP

To configure an EFP, complete the following steps:

Procedure
     Command or ActionPurpose
    Step 1 enable


    Example: 
    Router> enable
     

    Enables privileged EXEC mode. Enter your password if prompted.

     
    Step 2 configure terminal


    Example: 
    Router# configure terminal
     

    Enters global configuration mode.

     
    Step 3 interface type number


    Example: 
    Router(config)# interface GigabitEthernet 0/0
     

    Specifies an interface type and number, and places the device in interface configuration mode.

     
    Step 4 service instance number ethernet


    Example: 
    Router(config-if)# service instance 10 ethernet
     

    Configures an EFP (service instance) and enters service instance configuration mode.

    • number—EFP identifier; an integer from 1 to 4000.
     
    Step 5 encapsulation dot1q vlan-id


    Example: 
    Router(config-if-srv)# encapsulation dot1q 50
     

    Configures encapsulation type for the service instance.

    • vlan-id—Virtual LAN identifier. The valid range is from 1 to 4094.
     
    Step 6 rewrite ingress tag pop 1 symmetric


    Example: 
    Router(config-if-srv)# rewrite ingress 
tag pop 1 symmetric
     

    Specifies that encapsulation modification occurs on packets at ingress.

     
    Step 7 bridge-domain bridge-id


    Example: 
    Router(config-if-srv)# bridge-domain 100
     

    Configures the bridge domain ID.

    • bridge-id—Bridge domain number. The valid range is from 1 to 4094.
     

    Adding an EFP to a Multilink

    To add an EFP to a multilink, complete the following steps:

    Procedure
       Command or ActionPurpose
      Step 1 enable


      Example: 
      Router> enable
       

      Enables privileged EXEC mode.

      • Enter your password if prompted.
       
      Step 2 configure terminal


      Example: 
      Router# configure terminal
       

      Enters global configuration mode.

       
      Step 3 interface type number


      Example: 
      Router(config)# interface Multilink 5
       

      Specifies an interface type and number, and places the device in interface configuration mode.

       
      Step 4 service instance number ethernet


      Example: 
      Router(config-if)# service instance 10 ethernet
       

      Configures an EFP (service instance) and enters service instance configuration mode.

      • number—EFP identifier; an integer from 1 to 4000.
       
      Step 5 encapsulation dot1q vlan-id


      Example: 
      Router(config-if-srv)# encapsulation dot1q 60
       

      Configures encapsulation type for the service instance.

      • vlan-id—Virtual LAN identifier. The valid range is from 1 to 4094.
       
      Step 6 rewrite ingress tag pop 1 symmetric


      Example: 
      Router(config-if-srv)# rewrite ingress tag pop 1 symmetric
       

      Specifies that encapsulation modification occurs on packets at ingress.

       
      Step 7 bridge-domain bridge-id


      Example: 
      Router(config-if-srv)# bridge-domain 100
       

      Configures the bridge domain ID.

      • bridge-id—Bridge domain number. The valid range is from 1 to 4094.
       
      Step 8 exit


      Example: 
      Router(config-if-srv)# exit
       

      Exits service instance configuration mode and enters the interface configuration mode.

      Note    Repeat Step 4 to Step 7 to add another EFP to the Multilink.
       

      Enabling Routing on an MLPPP Interface Running BCP

      To enable routing on an MLPPP interface running BCP, complete the following steps:

      Procedure
         Command or ActionPurpose
        Step 1 enable


        Example: 
        Router> enable
         

        Enables privileged EXEC mode.

        • Enter your password if prompted.
         
        Step 2 configure terminal


        Example: 
        Router# configure terminal
         

        Enters global configuration mode.

         
        Step 3 interface type number


        Example: 
        Router(config)# interface Multilink 5
         

        Specifies an interface type and number, and places the device in interface configuration mode.

         
        Step 4 service instance number ethernet


        Example: 
        Router(config-if)# service instance 10 ethernet
         

        Configures an EFP (service instance) and enters service instance configuration mode.

        • number—EFP identifier; an integer from 1 to 4000.
         
        Step 5 encapsulation dot1q vlan-id


        Example: 
        Router(config-if-srv)# encapsulation dot1q 60
         

        Configures encapsulation type for the service instance.

        • vlan-id—Virtual LAN identifier. The valid range is from 1 to 4094.
         
        Step 6 rewrite ingress tag pop 1 symmetric


        Example: 
        Router(config-if-srv)# rewrite ingress tag pop 1 symmetric
         

        Specifies that encapsulation modification occurs on packets at ingress.

         
        Step 7 bridge-domain bridge-id


        Example: 
        Router(config-if-srv)# bridge-domain 100
         

        Configures the bridge domain ID.

        • bridge-id—Bridge domain number. The valid range is from 1 to 4094.
         
        Step 8 exit


        Example: 
        Router(config-if-srv)# exit
         

        Exits service instance configuration mode and enters the interface configuration mode.

         
        Step 9 interface type number


        Example: 
        Router(config)# interface VLAN 100
         

        Specifies an interface type and number, and places the device in interface configuration mode.

         
        Step 10 ip adddress ip-address-primary ip-address-secondary


        Example: 
        Router(config-if)# ip address 10.10.10.8 255.255.255.0
         

        Specifies a primary or secondary IP address for an interface.

         

        Configuring Multiple Encapsulated VLANs Bridged Through Different Multilinks

        You should create two encapsulated VLANs and add them to two multilinks for this configuration to work.

        To configure multiple encapsulated VLANs bridged through different multilinks, complete the following tasks:

        Adding an Encapsulated VLAN to Multilinks

        To add an encapsulated VLAN to separate multilinks, complete the following steps:

        Procedure
           Command or ActionPurpose
          Step 1 enable


          Example: 
          Router> enable
           

          Enables privileged EXEC mode.

          • Enter your password if prompted.
           
          Step 2 configure terminal


          Example: 
          Router# configure terminal
           

          Enters global configuration mode.

           
          Step 3 interface type number


          Example: 
          Router(config)# interface Multilink 5
           

          Specifies an interface type and number, and places the device in interface configuration mode.

           
          Step 4 service instance number ethernet


          Example: 
          Router(config-if)# service instance 10 ethernet
           

          Configures an EFP (service instance) and enters service instance configuration mode.

          • number—EFP identifier; an integer from 1 to 4000.
           
          Step 5 encapsulation dot1q vlan-id


          Example: 
          Router(config-if-srv)# encapsulation dot1q 60
           

          Configures encapsulation type for the service instance.

          • vlan-id—Virtual LAN identifier. The valid range is from 1 to 4094.
           
          Step 6 rewrite ingress tag pop 1 symmetric


          Example: 
          Router(config-if-srv)# rewrite ingress tag pop 1 symmetric
           

          Specifies that encapsulation modification occurs on packets at ingress.

           
          Step 7 bridge-domain bridge-id


          Example: 
          Router(config-if-srv)# bridge-domain 100
           

          Configures the bridge domain ID.

          • bridge-id—Bridge domain number. The valid range is from 1 to 4094.
           
          Step 8 exit


          Example: 
          Router(config-if-srv)# exit
           

          Exits service instance configuration mode and enters the interface configuration mode.

          Note    Repeat steps 3 to 7 to create another multilink and add the VLAN information.
           

          Configuring QoS for BCP Support on MLPPP

          The egress policy at the multilink interface matches the IP DSCP value and VLAN CoS bits. Based on this classification it re-marks these values and performs egress policing (Priority percent or Bandwidth percent).

          To configure QoS for BCP Support on MLPPP, complete the following tasks:


          Note
          Define a QoS policy, and apply it to the MLPPP interface, and configure a matching policy on the EFP interface.

          Defining a QoS Policy

          To define a QoS policy, complete the following steps:

          Procedure
             Command or ActionPurpose
            Step 1 enable


            Example: 
            Router> enable
             

            Enables privileged EXEC mode.

            • Enter your password if prompted.
             
            Step 2 configure terminal


            Example: 
            Router# configure terminal
             

            Enters global configuration mode.

             
            Step 3 class-map match-any class-map-name


            Example: 
            Router(config)# class-map match-any dscpaf11
             

            Creates a class map to be used for matching packets to a specified class and enters QoS class-map configuration mode.

            • class-map-name—Name of the class for the class map. The class name is used for both the class map and to configure a policy for the class in the policy map.
             
            Step 4 match ip dscp dscp-list


            Example: 
            Router(config-cmap)# match ip dscp af11
             

            Matches IP DSCP packeting using Assured Forwarding (AF) by entering the binary representation of the DSCP value.

             
            Step 5 class-map match-any class-map-name


            Example: 
            Router(config-cmap)# class-map match-any qos-group3
             

            Creates a class map to be used for matching packets to a specified class.

             
            Step 6 match qos-group qos-group-value


            Example: 
            Router(config-cmap)# match qos-group 3
             

            Identifies a specific quality of service (QoS) group value as a match criterion.

            • qos-group-value—The exact value used to identify a QoS group value. The valid range is from 0 to 7.
             
            Step 7 policy-map policy-map-name


            Example: 
            Router(config-cmap)# policy-map bcpmlpppqos
             

            Creates a policy map that can be attached to one or more interfaces.

            • poliicy-map-name—Name of the policy map.
             
            Step 8 class class-name


            Example: 
            Router(config-pmap)# class dscpaf11
             

            Specifies the name of the class whose policy you want to create or change. Alternatively, is used to specify the default class (commonly known as the class-default class) before you configure its policy.

            • class-name—Name of the class to be configured or whose policy is to be modified. The class name is used for both the class map and to configure a policy for the class in the policy map. .
             
            Step 9 priority percent percentage


            Example: 
            Router(config-pmap-c)# priority percent 20
             

            Provides priority to a class of traffic belonging to a policy map.

            • percentage—Total available bandwidth to be set aside for the priority class. The valid range is from 1 to 100.
             
            Step 10 set ip dscp ip-dscp-value


            Example: 
            Router(config-pmap-c)# set ip dscp ef
             

            Marks a packet by setting the IP DSCP value in the type of service (ToS) byte.

            • ip-dscp-value—IP DSCP value; The valid values are from 0 to 63.
             
            Step 11 class class-name


            Example: 
            Router(config-pmap-c)# class qos-group3
             

            Specifies the name of the class whose policy you want to create or change. Alternatively, is used to specify the default class (commonly known as the class-default class) before you configure its policy.

             
            Step 12 bandwidth percent percentage


            Example: 
            Router(config-pmap-c)# bandwidth percent 20
             

            Specifies the bandwidth allocated for a class belonging to a policy map.

            • percentage—Specifies the percentage of guaranteed bandwidth based on an absolute percent of available bandwidth to be set aside for the priority class or on a relative percent of available bandwidth. The valid range is from 1 to 100.
             
            Step 13 set qos-group group-id


            Example: 
            Router(config-pmap-c)# set qos-group 4
             

            Sets a QoS group identifier (ID) that can be used later to classify packets.

            • group-id—group-id—Group ID number. The valid range is from 0 to 99.
             

            Applying a QoS Policy on an MLPPP Interface

            To apply a QoS policy on an MLPPP interface, complete the following steps:

            Procedure
               Command or ActionPurpose
              Step 1 enable


              Example: 
              Router> enable
               

              Enables privileged EXEC mode.

              • Enter your password if prompted.
               
              Step 2 configure terminal


              Example: 
              Router# configure terminal
               

              Enters global configuration mode.

               
              Step 3 interface type number


              Example: 
              Router(config)# interface Multilink 5
               

              Specifies an interface type and number, and places the device in interface configuration mode.

               
              Step 4 service-policy output policy-map-name


              Example: 
              Router(config-if)# service-policy output bcpmlpppqos
               

              Attaches a policy map to an input interface, a virtual circuit (VC), an output interface, or a VC that will be used as the service policy for the interface or VC.

              • policy-map-name—The name of a service policy map (created using the policy-map command) to be attached.
               
              Step 5 service instance number ethernet


              Example: 
              Router(config-if)# service instance 20 ethernet
               

              Configures an EFP (service instance) and enters service instance configuration mode.

              • number—EFP identifier; an integer from 1 to 4000.
               
              Step 6 encapsulation dot1q vlan-id


              Example: 
              Router(config-if-srv)# encapsulation dot1q 50
               

              Configures encapsulation type for the service instance.

              • vlan-id—Virtual LAN identifier. The valid range is from 1 to 4094.
               
              Step 7 rewrite ingress tag pop 1 symmetric


              Example: 
              Router(config-if-srv)# rewrite ingress tag pop 1 symmetric
               

              Specifies that encapsulation modification occurs on packets at ingress.

               
              Step 8 bridge-domain bridge-id


              Example: 
              Router(config-if-srv)# bridge-domain 100
               

              Configures the bridge domain ID.

              • bridge-id—Bridge domain number. The valid range is from 1 to 4094.
               

              Verifying BCP Support on MLPPP

              To display the Multilink PPP bundle information on various interfaces on a router, use the show command, as described in the following example: 

              Router# show ppp multilink interface multilink 1

Multilink1
  Bundle name: ASR1
  Remote Endpoint Discriminator: [1] ASR1
  Local Endpoint Discriminator: [1] ASR2
  Bundle up for 17:06:50, total bandwidth 20480, load 6/255
  2 receive classes, 2 transmit classes
  Receive buffer limit 123040 bytes per class, frag timeout 1000 ms
  Bundle is Distributed
  Receive Class 0:
    0/0 fragments/bytes in reassembly list
    0 lost fragments, 0 reordered
    0/0 discarded fragments/bytes, 0 lost received
    0xB9026C received sequence
  Receive Class 1:
    0/0 fragments/bytes in reassembly list
    0 lost fragments, 0 reordered
    0/0 discarded fragments/bytes, 0 lost received
    0x5D2E8F received sequence
  Transmit Class 0:
    0x5CBA5 sent sequence
  Transmit Class 1:
    0x146FA1 sent sequence
 Distributed MLP. Multilink in Hardware.
 Distributed Fragmentation is on. Fragment size: 256.
 Bundle status is: active
  Member links: 10 active, 0 inactive (max 255, min not set)
    Se0/6:0, since 01:36:49, 7680 weight, 256 frag size
    Se0/2:0, since 01:26:26, 7680 weight, 256 frag size
    Se0/5:0, since 01:25:18, 7680 weight, 256 frag size
    Se0/9:0, since 01:25:17, 7680 weight, 256 frag size
    Se0/1:0, since 01:24:25, 7680 weight, 256 frag size
    Se0/4:0, since 01:24:20, 7680 weight, 256 frag size
    Se0/0:0, since 01:24:18, 7680 weight, 256 frag size
    Se0/7:0, since 01:24:17, 7680 weight, 256 frag size
    Se0/8:0, since 01:23:09, 7680 weight, 256 frag size
    Se0/3:0, since 01:23:08, 7680 weight, 256 frag size

              Configuration Examples for BCP Support on MLPPP

              Example: Multilink with a Single EFP

              The following is a sample configuration of a multilink with a single EFP.

              Figure 2. Multilink with a Single EFP

              Example: Multilink with Multiple EFPs

              The following is a sample configuration of a multilink with multiple EFPs.

              Figure 3. Multilink with Multiple EFPs

              Example: Multilink with QoS

              The following is a sample configuration of Multilink with QoS:

              Figure 4. Multilink with QoS

              Example: Multilink with Routing on an MLPPP Interface Running BCP

              The following is a sample configuration to enable routing on an MLPPP interface running BCP:

              Figure 5. Multilink with Routing on an MLPPP Interface Running BCP

              Example: Multilink Between Cisco ASR 901 Series Routers and Cisco C7600 Series Routers

              The following is a sample configuration of multilink between a Cisco ASR 901 Series Routers and Cisco C7600 Series Routers:

              Figure 6. Multilink Between Cisco ASR 901 Series Routers and Cisco C7600 Series Routers

              Example: Multilink with Maximum 10 Links

              The following is a sample configuration of multilink with maximum 10 links.

              Policy Map 1

              The following sample configurations show how to configure multilink with maximum 10 links. 

              
class-map match-any qos-group1
match qos-group 1
class-map match-any qos-group2
match qos-group 2
class-map match-any qos-group3
match qos-group 3
class-map match-any qos-group4
match qos-group 4
class-map match-any qos-group5
match qos-group 5
class-map match-any qos-group6
match qos-group 6
class-map match-any qos-group7
match qos-group 7	

policy-map bcpmlpppqos
class qos-group1
priority percent 20
set qos-group 2
class qos-group2
bandwidth percent 20
set qos-group 3
class qos-group3
bandwidth percent 10
set qos-group 4
class qos-group4
bandwidth percent 5
set qos-group 5
class qos-group5
bandwidth percent 30
set qos-group 6
class qos-group7
bandwidth percent 15
set qos-group 1

              Policy Map 2

              class-map match-any dscpaf11
match ip dscp af11
class-map match-any dscpaf12
match ip dscp af12
class-map match-any dscpaf21
match ip dscp af21
class-map match-any dscpaf31
match ip dscp af31
class-map match-any dscpcs1
match ip dscp cs1
class-map match-any dscpef
match ip dscp ef
class-map match-any dscpdefault
match ip dscp default

policy-map bcpmlpppdscp
class dscpaf11
priority percent 20
set ip dscp af12
class dscpaf12
bandwidth percent 20
set ip dscp af13
class dscpaf21
bandwidth percent 10
set ip dscp af22
class dscpaf31
bandwidth percent 5
set ip dscp af32
class dscpcs1
bandwidth percent 30
set ip dscp cs2
class dscpef
bandwidth percent 10
set ip dscp cs7
class dscpdefault
bandwidth percent 5
set ip dscp cs5

              MLPPP-GIG - 1

              interface Multilink1
service-policy output bcpmlpppqos
service instance 1 ethernet
  encapsulation  untagged  
    bridge-domain 3000

interface Multilink2
service-policy output bcpmlpppqos
service instance 1 ethernet
  encapsulation   dot1q  50
    bridge-domain 2000
service instance 2 ethernet
  encapsulation  dot1q  60 
    bridge-domain 2001

interface gigabitethernet 0/5
service instance 1 ethernet
  encapsulation   dot1q  50
    bridge-domain 2000
service instance 2 ethernet
  encapsulation  dot1q  60 
    bridge-domain 2001
service instance 3 ethernet
  encapsulation  untagged  
    bridge-domain 3000

              ADD-MLPPP-GIG - 1

              interface Multilink1
service-policy output bcpmlpppqos
service instance 2 ethernet
  encapsulation   dot1q  70
    bridge-domain 3001

interface gigabitethernet 0/5
service instance 4 ethernet
  encapsulation   dot1q  70
    bridge-domain 3001

              MLPPP-GIG-2

              
interface Multilink1
service-policy output bcpmlpppdscp
service instance 1 ethernet
  encapsulation  untagged  
    bridge-domain 3000

interface Multilink2
service-policy output bcpmlpppdscp
service instance 2 ethernet
  encapsulation  dot1q  any 
    bridge-domain 3001

interface gigabitethernet 0/5
service instance 1 ethernet
  encapsulation  untagged  
    bridge-domain 3000
service instance 2 ethernet
  encapsulation  dot1q any 
    bridge-domain 3001

              MLPPP-GIG-3

              
interface Multilink1
service-policy output bcpmlpppdscp
service instance 1 ethernet
  encapsulation  default
    bridge-domain 3000

interface gigabitethernet 0/5
service instance 1 ethernet
  encapsulation  default
    bridge-domain 3000

              Sample Configuration of MLPPP Bundled 10 Member Links

              
interface Multilink1
 no ip address
 load-interval 30
 ppp pfc local request
 ppp pfc remote apply
 ppp acfc local request
 ppp acfc remote apply
 ppp multilink
 ppp multilink interleave
 ppp multilink group 1
 ppp multilink fragment size 256
 ppp multilink multiclass
 service-policy output bcpmlpppqos
 service instance 102 ethernet
  encapsulation dot1q 102
  rewrite ingress tag pop 1 symmetric
  bridge-domain 102
 !

interface Serial0/0:0
 no ip address
 encapsulation ppp
 ppp multilink
 ppp multilink group 1
interface Serial0/1:0
 no ip address
 encapsulation ppp
 ppp multilink
 ppp multilink group 1
interface Serial0/2:0
 no ip address
 encapsulation ppp
 ppp multilink
 ppp multilink group 1
interface Serial0/3:0
 no ip address
 encapsulation ppp
 ppp multilink
 ppp multilink group 1
interface Serial0/4:0
 no ip address
 encapsulation ppp
 ppp multilink
 ppp multilink group 1
interface Serial0/5:0
 no ip address
 encapsulation ppp
 ppp multilink
 ppp multilink group 1
interface Serial0/6:0
 no ip address
 encapsulation ppp
 ppp multilink
 ppp multilink group 1
interface Serial0/7:0
 no ip address
 encapsulation ppp
 ppp multilink
 ppp multilink group 1
interface Serial0/8:0
 no ip address
 encapsulation ppp
 ppp multilink
 ppp multilink group 1
interface Serial0/9:0
 no ip address
 encapsulation ppp
 ppp multilink
 ppp multilink group 1

              Additional References

              The following sections provide references related to BCP Support on MLPPP feature.

              Related Documents

              Related Topic Document Title

              Cisco IOS commands

              Cisco IOS Master Commands List, All Releases

              Cisco ASR 901 Router Commands

              Cisco IOS Debug Command Reference

              Standards

              Standard Title

              None

              —

              MIBs

              MIB

              MIBs Link

              None

              To locate and download MIBs for selected platforms, Cisco IOS releases, and feature sets, use Cisco MIB Locator found at the following URL:

              http:/​/​tools.cisco.com/​ITDIT/​MIBS/​servlet/​index

              RFCs

              RFC Title

              RFC 3518

              Point-to-Point Protocol (PPP) Bridging Control Protocol (BCP)

              Technical Assistance

              Description Link

              The Cisco Technical Support website contains thousands of pages of searchable technical content, including links to products, technologies, solutions, technical tips, and tools. Registered Cisco.com users can log in from this page to access even more content.

              http:/​/​www.cisco.com/​cisco/​web/​support/​index.html

              Feature Information for BCP Support on MLPPP

              Feature Name Releases Feature Information

              BCP Support on MLPPP

              15.4(2)S

              This feature was introduced on the Cisco ASR 901 Series Routers.

              The following sections provide information about this feature: