Juniper ACX7509 High Availability

0:00 the scx-7509 chassis can be ordered in

0:03 base version one routing control board

0:04 and one forwarding engine board or you

0:07 can order the premium version and you

0:08 have two of each the redundancy is based

0:10 on the shared fade principle simply put

0:13 the rcb0 is bound to Feb 0 and routing

0:16 card 1 is linked to 14 card 1. imagine

0:18 you have pair zero active whether RCB or

0:21 Feb fails or is extracted the other pair

0:24 one takes control instantly in normal

0:26 conditions the traffic received in a

0:28 port is duplicated by the file towards

0:30 the active and standby fed in this

0:32 example both traffic are passed to the

0:34 other PFE via the Fabric Connection and

0:36 is transmitted to the destination FPC

0:38 here the traffic is received twice at

0:40 the file level this file knows which RCB

0:43 Fab pair is active and accept traffic

0:45 from Feb zero and drops traffic from fed

0:47 1. if fab0 or RCB 0 fails change of

0:50 Master ship is triggered and all files

0:52 in the systems are instantly informed

0:54 and can now accept traffic from Feb 1.

0:56 you want to know more you'll find a link

0:57 to the tech Post article in the

0:59 description