On 9/6/2012 5:21 PM, Owen DeLong wrote:
> On Sep 6, 2012, at 14:55 , James Stahr<[log in to unmask]>  wrote:
>
>
>> On 9/6/2012 11:57 AM, Owen DeLong wrote:
>>
>>> There was certainly plenty of discussion of that particular topic to enable them to do so.
>>>
>>> Owen
>>>
>>>
>>>
>> I tried and I couldn't re-establish my BGP sessions with anyone but the route servers when I had the $new_ip as my primary and the old as my secondary, so I just put on $new_ip as a secondary.
>>
> Did you try configuring the secondary IP in the update-source parameter for your old-ip peers?
>
>
As I stated before, update-source IP-address is not an option under 
IOS-XE, SXI, or SRE code bases which are the most likely for folks to be 
using:

r-dc-msn-1(config-router)#neighbor 1.2.3.4 update-source ?
   ACR                Virtual ACR interface
   ATM-ACR            ATM interface with ACR
   Analysis-Module    cisco network analysis service module
   Async              Async interface
   Auto-Template      Auto-Template interface
   BDI                Bridge-Domain interface
   BVI                Bridge-Group Virtual Interface
   CDMA-Ix            CDMA Ix interface
   CEM                Circuit Emulation interface
   CEM-ACR            Circuit Emulation interface with ACR
   CTunnel            CTunnel interface
   Container          Container interface
   Dialer             Dialer interface
   EsconPhy           ESCON interface
   Fcpa               Fiber Channel
   Filter             Filter interface
   Filtergroup        Filter Group interface
   GMPLS              MPLS interface
   GigabitEthernet    GigabitEthernet IEEE 802.3z
   IMA-ACR            IMA interface with ACR
   LISP               Locator/ID Separation Protocol Virtual Interface
   Lex                Lex interface
   LongReachEthernet  Long-Reach Ethernet interface
   Loopback           Loopback interface
   Lspvif             LSP virtual interface
   MFR                Multilink Frame Relay bundle interface
   Multilink          Multilink-group interface
   NVI                NAT virtual interface
   Null               Null interface
   Port-channel       Ethernet Channel of interfaces
   Portgroup          Portgroup interface
   Pos-channel        POS Channel of interfaces
   SBC                Session Border Controller
   SONET_ACR          Virtual SONET-ACR controller
   SSLVPN-VIF         SSLVPN Virtual Interface
   SYSCLOCK           Telecom-Bus Clock Controller
   Service-Engine     cisco service engine module
   Tunnel             Tunnel interface
   Vif                PGM Multicast Host interface
   Vir-cem-ACR        Circuit Emulation Virtual interface with ACR
   Virtual-PPP        Virtual PPP interface
   Virtual-Template   Virtual Template interface
   Virtual-TokenRing  Virtual TokenRing
   Virtual-cem        Circuit Emulation Virtual interface
   Vlan               Catalyst Vlans
   multiservice       Multiservice interface
   vasileft           VasiLeft interface
   vasiright          VasiRight interface
   voaBypassIn        VOA-Bypass-In interface
   voaBypassOut       VOA-Bypass-Out interface
   voaFilterIn        VOA-Filter-In interface
   voaFilterOut       VOA-Filter-Out interface
   voaIn              VOA-In interface
   voaOut             VOA-Out interface


IOS-XR might support it, but I don't have access to one to test it.

-James

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