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Definition for Aggregated BMP Route Monitoring Message
draft-liu-grow-bmp-rm-aggregated-06

Document Type Active Internet-Draft (individual)
Authors Yisong Liu , Changwang Lin , Mukul Kumar Srivastava , Narasimha Prasad
Last updated 2026-07-06
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draft-liu-grow-bmp-rm-aggregated-06
GROW Working Group                                                Y. Liu
Internet-Draft                                              China Mobile
Intended status: Standards Track                                  C. Lin
Expires: 7 January 2027                             New H3C Technologies
                                                           M. Srivastava
                                              Hewlett Packard Enterprise
                                                            P. Narasimha
                                                     Cisco Systems, Inc.
                                                             6 July 2026

         Definition for Aggregated BMP Route Monitoring Message
                  draft-liu-grow-bmp-rm-aggregated-06

Abstract

   This document proposes an aggregated BMP Route Monitoring message
   based on the BMP Multi-Peer Header message (draft-liu-grow-bmp-
   multiple-peer-header).  It can compress multiple BMP Route Monitoring
   messages into one aggregated BMP Route Monitoring message to reduce
   the amount of reported BMP Route Monitoring messages and reduce the
   network overhead.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at https://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on 7 January 2027.

Copyright Notice

   Copyright (c) 2026 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents (https://trustee.ietf.org/
   license-info) in effect on the date of publication of this document.

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   Please review these documents carefully, as they describe your rights
   and restrictions with respect to this document.  Code Components
   extracted from this document must include Revised BSD License text as
   described in Section 4.e of the Trust Legal Provisions and are
   provided without warranty as described in the Revised BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Requirements Language . . . . . . . . . . . . . . . . . .   4
   2.  Solution  . . . . . . . . . . . . . . . . . . . . . . . . . .   4
     2.1.  Current BGP Group Packaging . . . . . . . . . . . . . . .   4
     2.2.  BMP Send Batching Optimization  . . . . . . . . . . . . .   6
   3.  Aggregated Route Monitoring Definition  . . . . . . . . . . .   7
   4.  Aggregated Route Monitoring Message . . . . . . . . . . . . .   7
     4.1.  Message Format for BMPv3 and BMPv4  . . . . . . . . . . .   7
     4.2.  Route Monitoring Message  . . . . . . . . . . . . . . . .  10
     4.3.  Support for various RIB-Views . . . . . . . . . . . . . .  10
     4.4.  Examples of Multiple Peers  . . . . . . . . . . . . . . .  10
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .  14
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  14
   7.  Normative References  . . . . . . . . . . . . . . . . . . . .  15
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  15

1.  Introduction

   [RFC7854] defines BMP Route Monitoring message, which is used to send
   incremental routes advertised and withdrawn by peers to the
   monitoring station.  BMP Route Monitoring message consists of Common
   Header, Per-Peer Header and BGP Update PDU.  Among them, Common
   Header and Per-Peer Header are defined in [RFC7854], and the BGP
   Update PDU contains the BGP PATH attribute and prefix, as shown in
   Figure 1.

                     +------------------------------+
                     |       Common Header          |
                     +------------------------------+
                     |       Per-Peer Header        |
                     +------------------------------+
                     |       BGP Update PDU         |
                     |+----------------------------+|
                     ||      BGP PATH Attributes   ||
                     |+----------------------------+|
                     ||      Prefixes              ||
                     |+----------------------------+|
                     +------------------------------+

              Figure 1: BMP Route Monitoring Message Structure

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   [I-D.ietf-grow-bmp-tlv] changes the structure of BMP Route Monitoring
   message where the Per-Peer Header is followed by one BGP Message TLV
   and optional TLVs, as shown in Figure 2.  The BGP Update PDU is
   enclosed in the BGP Message TLV, and a Route Monitoring message MUST
   contain one BGP Message TLV.

                     +------------------------------+
                     |       Common Header          |
                     +------------------------------+
                     |       Per-Peer Header        |
                     +------------------------------+
                     |       BGP Message TLV        |
                     |+----------------------------+|
                     ||      BGP Update PDU        ||
                     ||+--------------------------+||
                     |||     BGP PATH Attributes  |||
                     ||+--------------------------+||
                     |||     Prefixes             |||
                     ||+--------------------------+||
                     |+----------------------------+|
                     +------------------------------+
                     |       Optional TLVs          |
                     +------------------------------+

             Figure 2: BMPv4 Route Monitoring Message Structure

   Currently, a piece of BMP Route Monitoring message can contain one
   Common Header, one Per-Peer Header, and one BGP Update PDU or one BGP
   Message TLV including one BGP Update PDU, and the BGP Update PDU can
   contain multiple non-repeatable BGP PATH attributes and prefixes.

   [I-D.liu-grow-bmp-multiple-peer-header] defines the Multi-Peer Header
   Message to compress multiple BMP Per-Peer messages into one
   aggregated BMP message for reducing the reported BMP messages and the
   network overhead.

   This document proposes an aggregated BMP Route Monitoring message
   based on the Multi-Peer Header message.  It can compress multiple BMP
   Route Monitoring messages into one aggregated BMP Route Monitoring
   message, which reduces the amount of reported BMP Route Monitoring
   messages and also reduces the network overhead.

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1.1.  Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
   "OPTIONAL" in this document are to be interpreted as described in BCP
   14 [RFC2119] [RFC8174] when, and only when, they appear in all
   capitals, as shown here.

2.  Solution

2.1.  Current BGP Group Packaging

   The rapid growth of existing network routing tables and the
   complexity of network topology have led to the need for BGP to
   support more peers.  In particular, in scenarios with a large number
   of peers and a large amount of routes, the router needs to send
   routes to a large number of BGP peers, and most of the peers have the
   same configuration, which requires higher packaging and sending
   performance.

   The BGP group packaging technology treats all BGP peers with common
   configurations as a packaging group.  In this way, each route to be
   sent is packaged only once and then sent to all neighbors in the
   packaging group, which exponentially improves the packaging
   efficiency.

   Before the group packaging feature was supported, each route to be
   sent had to be packaged separately for each peer.  Group packaging
   enables unified packaging and separate sending, that is, each route
   to be sent is packaged only once and then sent to all peers in the
   packaging group, which exponentially improves the efficiency of
   packaging and sending.  In scenarios with a large number of neighbors
   and a large amount of routes, as shown in Figure 3, group packaging
   greatly improves the performance of BGP packaging and sending.

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     +---------------------------------------------------------------+
     | +----------+                                            AS    |
     | |    RR1   |                                                  |
     | +-+-+-+-+--+                                                  |
     |   | | | |                IBGP                                 |
     |   | | | +---------------------------------------------+       |
     |   | | +------------------------------+                |       |
     |   | +---------------+                |                |       |
     |   |                 |                |                |       |
     | +-+------+       +--+-----+       +--+-----+       +--+-----+ |
     | | Client |  ...  | Client |  ...  | Client |  ...  | Client | |
     | +-+------+       +--+-----+       +--+-----+       +--+-----+ |
     |   |                 |                |                |       |
     |   | +---------------+                |                |       |
     |   | | +------------------------------+                |       |
     |   | | | +---------------------------------------------+       |
     |   | | | |                IBGP                                 |
     | +-+-+-+-+--+                                                  |
     | |    RR2   |                                                  |
     | +----------+                                                  |
     +---------------------------------------------------------------+

         Figure 3: Typical Application Scenario for Group Packaging

   Figure 3 is a typical network diagram of reflectors with multiple
   clients, RR routers need to send routes to a large number of BGP
   client peers, and most of the client peers have the same
   configuration.  Suppose an RR reflector has 100 clients and 100,000
   routes to be reflected.  If each neighbor is packaged separately,
   when the reflector RR sends routes to 100 clients, the total number
   of times all routes are packaged is 100,000 x 100.  The group
   packaging technology reduces this process to 100,000 x 1, which is
   equivalent to a 100-fold improvement in performance.

   The comparison of packet assembly by peer and peer packaging group is
   shown in Figure 4.  It can be clearly seen that assembling packets by
   peer packaging group can greatly improve packet performance.

     +----------------------------------------------------------------+
     |  Encapsulation by Peer | Encapsulation by Peer Packaging Group |
     +----------------------------------------------------------------+
     |    N Peers             |    N Peers of Peer Packaging Group    |
     +----------------------------------------------------------------+
     |    N Times Packaging   |    1 Times Packaging                  |
     +----------------------------------------------------------------+
     |    N Times Sending     |    N Times Sending                    |
     +----------------------------------------------------------------+

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               Figure 4: Comparison of Two Packaging Methods

2.2.  BMP Send Batching Optimization

   Currently, network devices have implemented BGP send batching
   technology.  This allows messages with the same attributes to be
   batched together and sent to multiple neighbors simultaneously.

   However, BMP Route Monitoring message is handled on a per-peer basis,
   which means they cannot take advantage of the BGP send batching
   functionality.

   From the perspective of BMP Route Monitoring packet format, if BMP
   Route Monitoring packets are also assembled according to peers, they
   need to be assembled once for each peer, and the assembly performance
   will also be limited.  Moreover, the BMP Route Monitoring message
   information may be different depending on the peer, and needs to be
   sent to the monitoring server multiple times, which increases the
   network overhead.

   In multiple BMP Route Monitoring messages, if the prefixes are the
   same but the Per-Peer Header and BGP PATH attributes are different,
   according to the way of packet assembly by peer packaging group, the
   different BGP attributes can be extracted, combined with the
   corresponding Per-Peer Header, and reuse of the same BGP PATH
   attributes, which together form a aggregated BMP Route Monitoring
   message.  See section 4 for detailed format of the aggregated BMP
   Route Monitoring message.  As shown in Figure 5 and Figure 6,
   compared with the original multiple BMP Route Monitoring message, the
   aggregated BMP Route Monitoring message exponentially reduces the
   Common Header and the same BGP PATH attributes and prefixes, and is
   only assembled once, which not only effectively the network overhead
   is reduced and the assembly performance is further improved.

     +--------+      +---------------------+      +-----------------+
     |        |----->|Packaging for Peer 1 |----->|Sending to Server|
     |        |      +---------------------+      +-----------------+
     |        |      ~
     |Prefixes|      ~
     |        |      +---------------------+      +-----------------+
     |        |----->|Packaging for Peer N |----->|Sending to Server|
     +--------+      +---------------------+      +-----------------+

                  Figure 5: BMP Encapsulation by Per-Peer

     +--------+    +-------------------------+    +-----------------+
     |Prefixes|--->|Packaging for Multi-Peers|--->|Sending to Server|
     +--------+    +-------------------------+    +-----------------+

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                 Figure 6: BMP Encapsulation by Multi-Peers

   This document defines this aggregated BMP Route Monitoring message,
   and its format has been defined based on the Multi-Peer Header
   message format defined in Section 4 of
   [I-D.liu-grow-bmp-multiple-peer-header], see Section 4 for its
   detailed format.

3.  Aggregated Route Monitoring Definition

   This section adds a new BMP Multi-Peer Message Type for BMP Route
   Monitoring, which is populated in the Multi-Peer Message Type field
   of the BMP Common Multi-Peer Header defined in Section 5 of
   [I-D.liu-grow-bmp-multiple-peer-header].

   Multi-Peer Message Type = TBD: Aggregated Route Monitoring,
   Recommended value 0.

4.  Aggregated Route Monitoring Message

4.1.  Message Format for BMPv3 and BMPv4

   This section defines two aggregated BMP Route Monitoring message
   formats, according to the Route Monitoring message format of
   [RFC7854] and [I-D.ietf-grow-bmp-tlv].

   Figure 7 shows one aggregated Route Monitoring message format, based
   on the Route Monitoring message format of [RFC7854], including Common
   Header, Common Multi-Peer Header, and BGP Update PDU.  Among them,
   the Common Header is the same as that defined in Section 4.1 of
   [RFC7854], the BGP Update PDU contains the same BGP PATH attribute
   and prefixes, and the Common Multi-Peer Header will be defined below.

           +--------------------------------------------------+
           |       Common Header (Type = Multi-Peer Header)   |
           +--------------------------------------------------+
           |       Common Multi-Peer Header                   |
           ~                                                  ~
           +--------------------------------------------------+
           |       BGP Update PDU                             |
           |+----------------------------+                    |
           ||      BGP PATH Attributes   |                    |
           |+----------------------------+                    |
           ||      Prefixes              |                    |
           |+----------------------------+                    |
           +--------------------------------------------------+

          Figure 7: BMP Aggregated Route Monitoring Message Format

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   Figure 8 shows another aggregated Route Monitoring message format,
   based on the BMPv4 Route Monitoring message format of
   [I-D.ietf-grow-bmp-tlv], including Common Header, Common Multi-Peer
   Header, BGP Message TLV including BGP Update PDU, and optional TLVs.
   Among them, the Common Header and the Common Multi-Peer Header are
   the same as the above, the BGP Update PDU of the BGP Message TLV also
   contains the same BGP PATH attribute and prefixes, and the Optional
   TLVs can be shared TLVs or TLVs specific to a particular prefix.

           +--------------------------------------------------+
           |       Common Header (Type = Multi-Peer Header)   |
           +--------------------------------------------------+
           |       Common Multi-Peer Header                   |
           ~                                                  ~
           +--------------------------------------------------+
           |       BGP Message TLV                            |
           ++------------------------------------------+      |
           ||      BGP Update PDU                      |      |
           ||+----------------------------+            |      |
           |||      BGP PATH Attributes   |            |      |
           ||+----------------------------+            |      |
           |||      Prefixes              |            |      |
           ||+----------------------------+            |      |
           |+------------------------------------------+      |
           +--------------------------------------------------+
           |       Optional TLVs                              |
           +--------------------------------------------------+

         Figure 8: BMPv4 Aggregated Route Monitoring Message Format

   As shown in Figure 9, the format of the Common Multi-Peer Header in
   the aggregated Route Monitoring message is defined, which contains
   multiple Wild Card Per-Peer Headers defined in Section 5 of
   [I-D.liu-grow-bmp-multiple-peer-header].  The Multi-Peer Message
   Length is the length of Common Multi-Peer Header in bytes (including
   all Wild Card Per-Peer Headers, Per-Peer Information Lengths, and
   Per-Peer BGP PATH Attributes).  Each Wild Card Per-Peer Header could
   be followed by the unique Per-Peer BGP PATH attribute of the
   corresponding peer route.  If no Per-Peer BGP PATH attribute follows,
   the corresponding Per-Peer Information length MUST be set to 0.

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         +--------------------------------------------------------+
         |       Multi-Peer Message Type (TBD) (1 byte)           |
         +--------------------------------------------------------+
         |       Multi-Peer Message Length (2 byte)               |
         +--------------------------------------------------------+
         |       Wild Card Per-Peer Header 1                      |
         +--------------------------------------------------------+
         |       Per-Peer Information Length 1 (2 bytes)          |
         +--------------------------------------------------------+
         |       Per-Peer BGP PATH Attributes 1                   |
         +--------------------------------------------------------+
         ~                                                        ~
         +--------------------------------------------------------+
         |       Wild Card Per-Peer Header N                      |
         +--------------------------------------------------------+
         |       Per-Peer Information Length N (2 bytes)          |
         +--------------------------------------------------------+
         |       Per-Peer BGP PATH Attributes N                   |
         +--------------------------------------------------------+

       Figure 9: Common Multi-Peer Header Format for Route Monitoring

   In the Common Multi-Peer Header format, the Wild Card Per-Peer Header
   format is the same as that defined in
   [I-D.liu-grow-bmp-multiple-peer-header].

   Per-Peer Information Length (2 bytes) indicates the length of the
   Per-Peer BGP PATH Attributes in the Common Multi-Peer Header.

   The format of the Per-Peer BGP PATH Attribute in the Common Multi-
   Peer Header is the same as BGP PATH Attribute in the BGP Update PDU.
   The Per-Peer BGP PATH Attribute field does not need to be filled in
   when the route attributes corresponding to each peer are exactly the
   same.  Only when the routing attributes corresponding to the peers
   are different to a certain extent, different parts of the routing
   attributes need to be filled in Per-Peer BGP PATH Attribute field
   according to the peers.  The same parts of the routing attributes are
   filled in the BGP Update PDU.  If the routing attributes
   corresponding to each peer are completely different, the routing
   attributes (BGP PATH Attribute) in the BGP Update PDU will be empty.

   If the Per-Peer BGP PATH Attribute in Common Multi-Peer Header
   exists, it means that the BGP PATH Attribute of the BGP Update PDU
   needs to be integrated with the Per-Peer BGP PATH Attribute of Common
   Multi-Peer Header to obtain the complete BGP PATH Attribute of BGP
   UPDATE PDU sent or received to the corresponding peer.  Otherwise,
   the BGP PATH Attribute of the BGP UPDATE PDU is the complete BGP PATH
   Attribute.

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   The Per-Peer BGP PATH Attributes in Common Multi-Peer Header is
   optional.  A Common Multi-Peer Header may just include the Per-Peer
   Header(s) without any PATH attributes following them.

   Multiple aggregated Route Monitoring messages can be used for same or
   different set of BGP Update prefixes.

4.2.  Route Monitoring Message

   Sender MUST send either the Route Monitoring Message (type 0) as
   defined in [RFC7854] OR the aggregated Route Monitoring Message and
   MUST NOT combine the two message formats in the updates.

4.3.  Support for various RIB-Views

   Aggregated Route Monitoring messages can be used for any of the RIB-
   views (Adj-RIB-In pre, Adj-RIB-In post, Adj-RIB-Out pre, Adj-RIB-Out
   post & Local-RIB) when batching is feasible.

   Batching across RIB-views with aggregated Route Monitoring Message
   can be used leveraging methods defined in
   [I-D.patki-grow-bmp-common-updates].

4.4.  Examples of Multiple Peers

   This Section lists some examples to show how to use the aggregated
   Route Monitoring Message based on the Route Monitoring Message format
   of [RFC7854].

   For the BMPv4 aggregated Route Monitoring Message, its usage is
   similar to these examples.

   As shown in Figure 10, there are three peers with no per-peer BGP
   PATH attributes along with all PATH attributes from BGP Update PDU
   being shared.

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             +-----------------------------------------------+
             |       Multi-Peer Message Type (TBD)           |
             +-----------------------------------------------+
             |       Multi-Peer Message Length               |
             +-----------------------------------------------+
             |       Wild Card Per-Peer Header 1             |
             +-----------------------------------------------+
             |       Per-Peer Information Length 1 (0)       |
             +-----------------------------------------------+
             |       Wild Card Per-Peer Header 2             |
             +-----------------------------------------------+
             |       Per-Peer Information Length 2 (0)       |
             +-----------------------------------------------+
             |       Wild Card Per-Peer Header 3             |
             +-----------------------------------------------+
             |       Per-Peer Information Length 3 (0)       |
             +-----------------------------------------------+
             |       BGP Update PDU                          |
             |+----------------------------+                 |
             ||      BGP PATH Attributes   |                 |
             |+----------------------------+                 |
             ||      Prefixes              |                 |
             |+----------------------------+                 |
             +-----------------------------------------------+

        Figure 10: Three Peers with No Per-Peer BGP PATH Attributes

   As shown in Figure 11, there are three peers with one of the peers
   having different PATH attribute along with shared PATH attributes in
   the BGP Update PDU.

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             +-----------------------------------------------+
             |       Multi-Peer Message Type (TBD)           |
             +-----------------------------------------------+
             |       Multi-Peer Message Length               |
             +-----------------------------------------------+
             |       Wild Card Per-Peer Header 1             |
             +-----------------------------------------------+
             |       Per-Peer Information Length 1           |
             +-----------------------------------------------+
             |       Per-Peer BGP PATH Attributes 1          |
             +-----------------------------------------------+
             |       Wild Card Per-Peer Header 2             |
             +-----------------------------------------------+
             |       Per-Peer Information Length 2 (0)       |
             +-----------------------------------------------+
             |       Wild Card Per-Peer Header 3             |
             +-----------------------------------------------+
             |       Per-Peer Information Length 3 (0)       |
             +-----------------------------------------------+
             |       BGP Update PDU                          |
             |+----------------------------+                 |
             ||      BGP PATH Attributes   |                 |
             |+----------------------------+                 |
             ||      Prefixes              |                 |
             |+----------------------------+                 |
             +-----------------------------------------------+

    Figure 11: Three Peers with One Peer Having Different PATH Attribute

   As shown in Figure 12, there are three peers with all the peers
   having different PATH attributes along with shared PATH attributes in
   BGP Update PDU.

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             +-----------------------------------------------+
             |       Multi-Peer Message Type (TBD)           |
             +-----------------------------------------------+
             |       Multi-Peer Message Length               |
             +-----------------------------------------------+
             |       Wild Card Per-Peer Header 1             |
             +-----------------------------------------------+
             |       Per-Peer Information Length 1           |
             +-----------------------------------------------+
             |       Per-Peer BGP PATH Attributes 1          |
             +-----------------------------------------------+
             |       Wild Card Per-Peer Header 2             |
             +-----------------------------------------------+
             |       Per-Peer Information Length 2           |
             +-----------------------------------------------+
             |       Per-Peer BGP PATH Attributes 2          |
             +-----------------------------------------------+
             |       Wild Card Per-Peer Header 3             |
             +-----------------------------------------------+
             |       Per-Peer Information Length 3           |
             +-----------------------------------------------+
             |       Per-Peer BGP PATH Attributes 3          |
             +-----------------------------------------------+
             |       BGP Update PDU                          |
             |+----------------------------+                 |
             ||      BGP PATH Attributes   |                 |
             |+----------------------------+                 |
             ||      Prefixes              |                 |
             |+----------------------------+                 |
             +-----------------------------------------------+

      Figure 12: Three Peers with All Having Different PATH Attributes

   As shown in Figure 13, there are three peers with all the peers
   having different PATH attributes along with no shared PATH attributes
   in BGP Update PDU.

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             +-----------------------------------------------+
             |       Multi-Peer Message Type (TBD)           |
             +-----------------------------------------------+
             |       Multi-Peer Message Length               |
             +-----------------------------------------------+
             |       Wild Card Per-Peer Header 1             |
             +-----------------------------------------------+
             |       Per-Peer Information Length 1           |
             +-----------------------------------------------+
             |       Per-Peer BGP PATH Attributes 1          |
             +-----------------------------------------------+
             |       Wild Card Per-Peer Header 2             |
             +-----------------------------------------------+
             |       Per-Peer Information Length 2           |
             +-----------------------------------------------+
             |       Per-Peer BGP PATH Attributes 2          |
             +-----------------------------------------------+
             |       Wild Card Per-Peer Header 3             |
             +-----------------------------------------------+
             |       Per-Peer Information Length 3           |
             +-----------------------------------------------+
             |       Per-Peer BGP PATH Attributes 3          |
             +-----------------------------------------------+
             |       BGP Update PDU                          |
             |+----------------------------+                 |
             ||      Prefixes              |                 |
             |+----------------------------+                 |
             +-----------------------------------------------+

      Figure 13: Three Peers with All Having Different PATH Attributes
                    along without Shared Path Attributes

5.  Security Considerations

   The considerations in Section 11 of [RFC7854] apply to this document.
   It is also believed that this document does not add any additional
   security considerations.

6.  IANA Considerations

   This document requests IANA to define one new "BMP Multi-Peer Message
   Type" registry to the BMP parameters name space
   (https://www.iana.org/assignments/bmp-parameters/bmp-
   parameters.xhtml).

   The new "BMP Multi-Peer Message Type" registry is seeded with the
   following new type (Section 3):

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   Type = TBD: Aggregated Route Monitoring

7.  Normative References

   [I-D.ietf-grow-bmp-tlv]
              Lucente, P., Gu, Y., Younsi, M., and P. Francois, "BMP v4:
              Extended TLV Support for BGP Monitoring Protocol (BMP)",
              Work in Progress, Internet-Draft, draft-ietf-grow-bmp-tlv-
              20, 2 March 2026, <https://datatracker.ietf.org/doc/html/
              draft-ietf-grow-bmp-tlv-20>.

   [I-D.liu-grow-bmp-multiple-peer-header]
              Liu, Y., Lin, C., Prasad, N., and M. K. Srivastava,
              "Definition for BMP Multiple Peer Header", Work in
              Progress, Internet-Draft, draft-liu-grow-bmp-multiple-
              peer-header-01, 25 April 2026,
              <https://datatracker.ietf.org/doc/html/draft-liu-grow-bmp-
              multiple-peer-header-01>.

   [I-D.patki-grow-bmp-common-updates]
              Patki, D. and N. Prasad, "Common BMP Route-Monitoring
              Messages for Routes Unchanged by Policy", Work in
              Progress, Internet-Draft, draft-patki-grow-bmp-common-
              updates-02, 20 October 2025,
              <https://datatracker.ietf.org/doc/html/draft-patki-grow-
              bmp-common-updates-02>.

   [RFC2119]  Bradner, S., "Key words for use in RFCs to Indicate
              Requirement Levels", BCP 14, RFC 2119,
              DOI 10.17487/RFC2119, March 1997,
              <https://www.rfc-editor.org/info/rfc2119>.

   [RFC7854]  Scudder, J., Ed., Fernando, R., and S. Stuart, "BGP
              Monitoring Protocol (BMP)", RFC 7854,
              DOI 10.17487/RFC7854, June 2016,
              <https://www.rfc-editor.org/info/rfc7854>.

   [RFC8174]  Leiba, B., "Ambiguity of Uppercase vs Lowercase in RFC
              2119 Key Words", BCP 14, RFC 8174, DOI 10.17487/RFC8174,
              May 2017, <https://www.rfc-editor.org/info/rfc8174>.

Authors' Addresses

   Yisong Liu
   China Mobile
   China
   Email: liuyisong@chinamobile.com

Liu, et al.              Expires 7 January 2027                [Page 15]
Internet-Draft   Aggregated BMP Route Monitoring Message       July 2026

   Changwang Lin
   New H3C Technologies
   China
   Email: linchangwang.04414@h3c.com

   Mukul Srivastava
   Hewlett Packard Enterprise
   10 Technology Park Dr
   Westford, MA 01886
   United States of America
   Email: mukul.srivastava@hpe.com

   Prasad S. Narasimha
   Cisco Systems, Inc.
   Email: snprasad@cisco.com

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