https://jira.opendaylight.org This file is an XML representation of an issue en-us 8.20.10 820010 22-06-2022 https://jira.opendaylight.org/browse/BGPCEP-317 bgpcep <p>UPDATE message sent by controller to BGP peer intended for the 8.0.1.32/28 prefix introduction has incorrect Total path attribute length (it should not cover the NLRI bytes)</p> <p>bgp peer log (play.py)</p> <p>2015-11-26 11:27:48,888 DEBUG: UPDATE message received: 0xffffffffffffffffffffffffffffffff004b020000003440010100400200800404000000004005040000006480090429292929800a0428282828800e0e00010104c0000201001c08000120<br/> 2015-11-26 11:27:48,888 DEBUG: Decoding update message:<br/> 2015-11-26 11:27:48,888 DEBUG: Message header marker: 0xffffffffffffffffffffffffffffffff<br/> 2015-11-26 11:27:48,888 DEBUG: Message lenght: 0x004b (75)<br/> 2015-11-26 11:27:48,888 DEBUG: Message type: 0x02 (update)<br/> 2015-11-26 11:27:48,888 DEBUG: Withdrawn routes lenght: 0x0000 (0)<br/> 2015-11-26 11:27:48,888 DEBUG: Withdrawn routes: 0x<br/> 2015-11-26 11:27:48,889 DEBUG: Withdrawn routes prefix list: []<br/> 2015-11-26 11:27:48,889 DEBUG: Total path attribute lenght: 0x0034 (52)<br/> 2015-11-26 11:27:48,889 DEBUG: Path attributes: 0x40010100400200800404000000004005040000006480090429292929800a0428282828800e0e00010104c0000201001c08000120<br/> 2015-11-26 11:27:48,889 DEBUG: Calculated NLRI length: 0<br/> 2015-11-26 11:27:48,889 DEBUG: NLRI: 0x<br/> 2015-11-26 11:27:48,889 DEBUG: NLRI prefix list: []</p> <p>karaf log for distribution-karaf-0.3.2-Lithium-SR2 temporary at <a href="https://jenkins.opendaylight.org/sandbox/job/bgpcep-csit-1node-userfeatures-only-stable-lithium/19/artifact/karaf.log" class="external-link" target="_blank" rel="nofollow noopener">https://jenkins.opendaylight.org/sandbox/job/bgpcep-csit-1node-userfeatures-only-stable-lithium/19/artifact/karaf.log</a></p> <p>from <a href="https://tools.ietf.org/html/rfc4271#page-15" class="external-link" target="_blank" rel="nofollow noopener">https://tools.ietf.org/html/rfc4271#page-15</a></p> <p> <ins>-----------------------------------------------------</ins></p> <div class='table-wrap'> <table class='confluenceTable'><tbody> <tr> <td class='confluenceTd'> Withdrawn Routes Length (2 octets) </td> </tr> </tbody></table> </div> <p> <ins>-----------------------------------------------------</ins></p> <div class='table-wrap'> <table class='confluenceTable'><tbody> <tr> <td class='confluenceTd'> Withdrawn Routes (variable) </td> </tr> </tbody></table> </div> <p> <ins>-----------------------------------------------------</ins></p> <div class='table-wrap'> <table class='confluenceTable'><tbody> <tr> <td class='confluenceTd'> Total Path Attribute Length (2 octets) </td> </tr> </tbody></table> </div> <p> <ins>-----------------------------------------------------</ins></p> <div class='table-wrap'> <table class='confluenceTable'><tbody> <tr> <td class='confluenceTd'> Path Attributes (variable) </td> </tr> </tbody></table> </div> <p> <ins>-----------------------------------------------------</ins></p> <div class='table-wrap'> <table class='confluenceTable'><tbody> <tr> <td class='confluenceTd'> Network Layer Reachability Information (variable) </td> </tr> </tbody></table> </div> <p> <ins>-----------------------------------------------------</ins></p> <p>...</p> <p>Total Path Attribute Length:</p> <p> This 2-octet unsigned integer indicates the total length of the<br/> Path Attributes field in octets. Its value allows the length<br/> of the Network Layer Reachability field to be determined as<br/> specified below.</p> <p>...</p> <p> Network Layer Reachability Information:</p> <p> This variable length field contains a list of IP address<br/> prefixes. The length, in octets, of the Network Layer<br/> Reachability Information is not encoded explicitly, but can be<br/> calculated as:</p> <p> UPDATE message Length - 23 - Total Path Attributes Length</p> <ul class="alternate" type="square"> <li>Withdrawn Routes Length</li> </ul> <p>Operating System: All<br/> Platform: All</p> BGPCEP-317

UPDATE message sent by controller to BGP peer has incorrect Total path attribute length (should not cover the NLRI bytes)

Bug Resolved Cannot Reproduce Unassigned Radovan Sajben Thu, 26 Nov 2015 13:12:12 +0000 Sun, 3 Mar 2019 11:49:32 +0000 Tue, 1 Dec 2015 15:09:31 +0000 Bugzilla Migration Bugzilla Migration BGP 0 1 <p>BGP Multi-Protocol (IPv4 Unicast) peering is enabled, routing information is carried in the Path Attribute "MP_REACH_NLRI", therefore this payload must counted to overall path attribute length.<br/> Ref.: <a href="https://tools.ietf.org/html/rfc4760#section-3" class="external-link" target="_blank" rel="nofollow noopener">https://tools.ietf.org/html/rfc4760#section-3</a></p> Development External issue ID 4681 External issue URL Issue Type Rank 0|i02bjj: