The value of tBgpPeerNgL2vpnCiscoInterop specifies whether BGP will
provide translation between non-compliant NLRI formats of Cisco.
BGP Peer sessions must be manually configured towards the non-compliant
Cisco PEs.
When the value of tBgpPeerNgL2vpnCiscoInterop is 'true', Cisco
non-compliant NLRI format will be used; one byte length field instead
of two bytes for BGP NLRI.
When the value of tBgpPeerNgL2vpnCiscoInterop is 'false', Cisco
non-compliant NLRI format will not be used or supported.