- This topic has 7 replies, 1 voice, and was last updated 12 years, 6 months ago by Abdel.
30th October 2008 at 06:41 #54457FahimGuest
Hi everyone !
Some NSS guys are recommending thatnumber of N7s between one BSC-MSC should be even for load sharing ! Is there any valid reason for that ?30th October 2008 at 09:59 #54458pixGuest
load sharing over 5 N7 or 6 N7 is working the same way.. i don’t see any logical reason behind your friend recommendation, but maybe i’m missing something.2nd November 2008 at 07:32 #54459AbdelGuest
In normal, the service load of different singling links that have the same priority and are led to the same Destination Signaling Point (DSP) should be equal. If the performance data show that the ratio of signaling link for transmission of links 0 and 2 is severely disproportional, while the receiving occupation percentage is basically equal. This indicates that the load sharing processing during the local-end signaling transmission is faulty.2nd November 2008 at 08:10 #54460pixGuest
thx for the details. any idea about:
–> odd or even number of ss7 ?
pix2nd November 2008 at 10:36 #54461RamGuest
I need to share my views in this discussion. Upto my search, the number of links whether odd or even does not make any difference in performance. The SLS or Signaling Link Selection field with 4 bit length is declared in start of every signaling transaction. This load sharing is also dependent on the algorithm that governs the process. anyhow this is a healthy discussion and i would try to bring some details. as for as my experience, i have seen about 99% of even number of links. Even it could be due to the fact that one additional sharing link for other one. Always 1+1 will be like redundant.
ram2nd November 2008 at 10:56 #54462FahimGuest
Though as far as I m concerned SS7 is a universal protocol for out of band signalling – could there be any vendor specific algorithm which dictates it’s behaviour?3rd November 2008 at 13:09 #54463AbdelGuest
About the odd and even never heard about but, this SS7 link in Huawei equipment you can give increase the load of one SS7 link by giving a higher priority of the other links in the same signalling linkset. In my opinion I think as long as they are in the same link set regardless wether they are even or odd numbers they will share the load.3rd November 2008 at 13:14 #54464AbdelGuest
a sudden increase in one link in a linkset my indicate a fault