The SONET frame and security

The SONET frame is composed of 9 rows. The first three bytes of each row contain information synchronization and supervision. Similar to SDH, we find the principle of adaptation-related encapsulation of data in virtual containers

Security

Different techniques can secure the use of SONET / SDH; these techniques are mainly access control and encryption, conventional solutions. Cons attacks format by inserting data specifically constructed, jamming is an excellent technique, at least in theory.

However, SONET and SDH are nevertheless sensitive to some uses flawed, as the inclusion of escape sequences. Has priori, these limits are not really security problems
Major: they can cause denial of service on the network, and degradation of the service should not be significant (depending In reality, the type of connection available to the attacker). In conclusion of this it is said that using SDH and SONET safely is realistic, complex attacks to work is very high.