Restart indicator

The purpose of the Restart indicator information element is to identify the class of the facility (i.e. channel or interface) to be restarted. The maximum length of this information element is three octets.

               8  7  6  5  4  3  2  1
        1      0  1  1  1  1  0  0  1 = 0x79
        2            length
        3   1 ext 0  0  0  0  a  a  a

Class (octet 3)
        Bits
        3  2  1
        0  0  0 Indicated channels (Note 1)
        1  1  0 Single interface (Note 2)
        1  1  1 All interfaces (Note 3)
        All other values are reserved.
NOTES