The automated way to do this is with NMC chassis awareness, dynamic slot assignment and dsa idle rebalancing. On the Arcs...make sure neither are set as owners of any of the cards, then do the following on both: enable nmc chassis_awareness enable nmc dynamic_slot_assignment enable nmc dsa_idle_rebalancing Then the Arc's (with the help of the NMC) should have worked out who controls what modem cards (this is a slow process - have patience). If one of the Arcs fails the other Arc should pick up the modem assignments. As far as IP pool assignment...the best way to get this to work with the above setup is to set each Arc with two ip pools and set: disable ip address_pool_round_robin Then set the first arc with pool 1 first, pool 2 second, and the second arc with pool 2 first and pool 1 second. I haven't tested all this out thoroughly...specifically not the ip pool setup...but I have done a bit of playing with the chassis_awareness, dsa and dsa_idle_rebalancing...it worked...slowly (like 20 minutes for a failover). Hope this helps, FN "Jamie Orzechowski" <mhz@ripnet.com> on 08/16/99 05:06:59 PM Please respond to usr-tc@lists.xmission.com Sent by: "Jamie Orzechowski" <mhz@ripnet.com> To: usr-tc@lists.xmission.com cc: (Florin Neamtu/US/3Com) Subject: (usr-tc) 2 ARC's - one chassis Could someone please give me a config to setup load balancing between 2 arc's I will have 14 DSP's in one chassis with 2 ARC's controlling them. - To unsubscribe to usr-tc, send an email to "majordomo@xmission.com" with "unsubscribe usr-tc" in the body of the message. For information on digests or retrieving files and old messages send "help" to the same address. Do not use quotes in your message. - To unsubscribe to usr-tc, send an email to "majordomo@xmission.com" with "unsubscribe usr-tc" in the body of the message. For information on digests or retrieving files and old messages send "help" to the same address. Do not use quotes in your message.