Conference 7.286::fddi

2117.0. "How router works on FDDI ?" by HGOM26::WILLIAMBAI () Thu Aug 22 1996 22:27

    Hello,
    
    I have a queston about routing in FDDI, 
    
               PE Switch 900TX
                    |                   DEC Switch 900EF  (DEFBA-MA)
               ---------  900MX            ____
               |  |  |  |==================|  | 
    IP Class 1-|- |  |  |   FDDI           |  |------------ IP Class 1
    IP Class 2-|- |  |  |                  |  |------------ IP Class 2
    IP Class 3-|- |  |  |                  |  |------------ IP Class 3
    IP Class 4-|- |  |  |                  |  |------------ IP Class 4
               |  | ||  |                  |  |------------ IP Class 5
               -----+---                   |  |------------ IP Class 0
                 |  |                      ----
                 |  |
                 |  |
                 |  ----- CISCO Router-- IP Class 0 
                 |
     DEC Switch 900EF MP Router
             (DEFBA-DA)
    
    We have a DEFBA-DA MP router which 6 segments IP Class 1-6 are
    assigned, FDDI connect to backplane , meanwhile a remote 900EF
    Switch (only) DEFBA-MA (Standalone) connect to the Ring through 900 MX.
    A Cisco router is connected to the PESwitch 900 TX(IP Class 0).
    Here is my question:
    
    If I give the Switch 900EF IP Class 1-5 addresses, can these segments
    route OK throuth 900EF MP roter ? 
    More important, can all of the nodes access to IP Class 0 ? 
    To the IP Class 1-5, can route messages go through FDDI to Class 0 ?
    How these works, to my knowledge, no IP can assigned to FDDI, can 
    CISCO router in this case automaticlly pick up the tags from the ring ?
    
    Many thanks .
    
    William B.