The transmission network as the foundation network of communication network

its safety is more and more attention

to further develop and improve the transmission network

potential safety problems of the existing network must be removed as soon as possible. This paper discusses existing network security risks of the Heilongjiang Mobile Communications Corporation province backbone lines

for example

the Link of existing network SDH devices main framework and expand framework

and the single point connecting of the northern loop and western loop

targeted at these drawbacks described the building of network security program and some problems Need pay attention to.