[j-nsp] multiple PPPoE servers (erx Junos10)

[gdxnfx]

Hi All,

I have 2 PPPoE servers on the same vlan.  PPPoE server 1 is erx1410, MAC = Unispher_40:08:a1  ,PPPoE Server 2 is erx1440,mac = Unispher_41:eb:42 .

See the PPPoE log below,I am wondering why the ERX1440  send the PADR to PCs  and  not ERX1410?  Does the Junose support "delay—Number of seconds that the PPPoE underlying interface waits after receiving a PADI packet from the client before sending a PADO packet in response."?

Anybody know how to implement 2 PPPoE servers? one as primary, one as backup?

    144 109.606151  Intel_83:4f:b3        Broadcast             PPPoED   Active Discovery Initiation (PADI)
    145 109.606740  Unispher_41:eb:42     Intel_83:4f:b3        PPPoED   Active Discovery Offer (PADO) AC-Name='ERX1440-LNS2-erx2'
    146 109.606779  Intel_83:4f:b3        Unispher_41:eb:42     PPPoED   Active Discovery Request (PADR)
    147 109.609564  Unispher_40:08:a1     Intel_83:4f:b3        PPPoED   Active Discovery Offer (PADO) AC-Name='ERX1410-LNS1-erx1'
    148 109.708460  Unispher_41:eb:42     Intel_83:4f:b3        PPPoED   Active Discovery Session-confirmation (PADS)
    149 109.737316  Intel_83:4f:b3        Unispher_41:eb:42     PPP LCP  Configuration Request
    150 109.809762  Unispher_41:eb:42     Intel_83:4f:b3        PPP LCP  Configuration Request
    151 109.809865  Unispher_41:eb:42     Intel_83:4f:b3        PPP LCP  Configuration Reject
    152 109.824677  Intel_83:4f:b3        Unispher_41:eb:42     PPP LCP  Configuration Ack
    153 109.829249  Intel_83:4f:b3        Unispher_41:eb:42     PPP LCP  Configuration Request
    154 109.829903  Unispher_41:eb:42     Intel_83:4f:b3        PPP LCP  Configuration Ack
    155 109.845212  Intel_83:4f:b3        Unispher_41:eb:42     PPP LCP  Identification
    156 109.845315  Intel_83:4f:b3        Unispher_41:eb:42     PPP LCP  Identification
    157 109.845546  Intel_83:4f:b3        Unispher_41:eb:42     PPP PAP  Authenticate-Request
    158 110.008150  Unispher_41:eb:42     Intel_83:4f:b3        PPP PAP  Authenticate-Ack
    159 110.015315  Intel_83:4f:b3        Unispher_41:eb:42     PPP CCP  Configuration Request
    160 110.015464  Intel_83:4f:b3        Unispher_41:eb:42     PPP IPCP Configuration Request
    161 110.015739  Unispher_41:eb:42     Intel_83:4f:b3        PPP LCP  Protocol Reject
    162 110.016237  Unispher_41:eb:42     Intel_83:4f:b3        PPP IPCP Configuration Reject
    163 110.025478  Intel_83:4f:b3        Unispher_41:eb:42     PPP IPCP Configuration Request
    164 110.025938  Unispher_41:eb:42     Intel_83:4f:b3        PPP IPCP Configuration Nak
    165 110.040954  Intel_83:4f:b3        Unispher_41:eb:42     PPP IPCP Configuration Request
    166 110.041395  Unispher_41:eb:42     Intel_83:4f:b3        PPP IPCP Configuration Ack
    167 110.209895  Unispher_41:eb:42     Intel_83:4f:b3        PPP IPCP Configuration Request
    168 110.259887  Intel_83:4f:b3        Unispher_41:eb:42     PPP IPCP Configuration Ack



delay—Number of seconds that the PPPoE underlying interface waits after receiving a PADI packet from the client before sending a PADO packet in response. In networks with mesh topologies, you might want to designate a primary PPPoE server and a backup PPPoE server for handling a particular service request. In such a scenario, you can configure a delay for the associated service name tag on the backup PPPoE server to allow sufficient time for the primary PPPoE server to respond to the client with a PADO packet. If the primary server does not send the PADO packet within the delay period configured on the backup server, then the backup server sends the PADO packet after the delay period expires. 


http://www.juniper.net/techpubs/en_US/junos10.1/information-products/topic-collections/config-guide-network-interfaces/topic-40403.html 

http://www.juniper.fr/techpubs/software/erx/erx51x/swconfig-link/html/pppoe-config9.html 


Thanks
Terry