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<p class="MsoNormal">Hi all,<o:p></o:p></p>
<p class="MsoNormal">   I notice below description in user guide, my understand is source address mainly used for BGP session for TCP connection ,don’t understand why this source is also used as next_hop_addr calculation. If source address is related with next
 hop calculation, this case is may not support: used MP_REACH_NLRI to support IPV4 route with IPV4 next hop ,but TCP connection type is IPV6. Since to support MP_REACH_NLRI for ipv4 channel, need to enabled ext_next_hop, if enabled ext_next_hop, if  ipv6 source
 address is selected as next_hop_addr if no others configuration for next_hop_addr. Does my understand is correct ?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="background:#F2FCFE">    <code><span style="font-size:10.0pt;color:black">source address </span></code><em><span style="font-size:10.0pt;font-family:"Courier New";color:black">ip</span></em><span style="font-size:9.5pt;font-family:"Arial",sans-serif;color:black"><o:p></o:p></span></p>
<p style="margin-left:.5in;background:#F2FCFE"><span style="font-size:9.5pt;font-family:"Arial",sans-serif;color:black">Define local address we should
</span><b><span style="font-size:9.5pt;font-family:"Arial",sans-serif;color:red">use for next hop calculation</span></b><span style="font-size:9.5pt;font-family:"Arial",sans-serif;color:red">
</span><span style="font-size:9.5pt;font-family:"Arial",sans-serif;color:black">and as a source address for the BGP session. Default: the address of the local end of the interface our neighbor is connected to.<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks<o:p></o:p></p>
<p class="MsoNormal">Arvin<o:p></o:p></p>
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