Is it possible to configure Cisco router 7204 to send BGP packets not over LSP that has been established for the BGP peer, PE router, but over non-MPLS connection, while all data traffic to the PE router get forwarded through the LSP. In other words, I'm wondering it is possible to constrain all control
packets, including BGP, OSPF and LDP, to the non-MPLS interfaces, even though the LSP exists for the destination prefixes for the BGP packets.
I hope it could be applied to establishing MP-iBGP sessions between PE routers in MPLS/VPN network, in other words, we want all BGP packets not be forwarded through the LSP established between two PE routers, which is actually an ATM LER system since we have established non-MPLS connections between LERs in order to forward control packets including routing protocol and MPLS signaling protocol.
This document is an early notification of a behaviour change that will be introduced in IOS XR release 6.5.
IOS XR configuration principles relevant for this article are:
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