Nortel DMS100 switches are still running code written for Motorola 680x0 CPUs. There is not enough CPU power to validate an RSA key in a timely manner for any

Nortel DMS100 switches are still running code written for Motorola 680x0 CPUs. There is not enough CPU power to validate an RSA key in a timely manner for any control message sent over a T1 or ISDN PRI.