- This topic has 76 replies, 1 voice, and was last updated 7 years, 3 months ago by charles m.
6th January 2005 at 17:28 #37070AlbinoGuest
The SS7 Link can be provision as :
Physical interface ( V35/DS0)
Using a SSP/DS-0 (64K) and provision as 56Kb in( SSP/STP).
Using a PSTN /56K via CSU/DSU.
provision as 56Kb in ( SSP/STP)
In regards to MSU
these mesaage vary in lenght, and the follwoing avarage are assumed :
1. IAM : 45 Octets/message
2. ACM,ANM,REL,RLC : 20 Oct/m7th January 2005 at 01:21 #37071MohsinGuest
Thank you mike, for your explanation. A’r you experience with SIGTRAN dimensioning?..
mohsin24th January 2006 at 18:32 #37072DanGuest
I was looking at your SS7 link calculations and just wondering where did 72 octets/attempt came from. Please advise.
Dan13th March 2006 at 16:19 #37073didoGuest
if you have a signalling point in your network C7 links to a mated pair of STPs, how do you ensure load sharing among the two STPs?19th March 2006 at 10:59 #37074premGuest
For redendancy there should at least two signaling links between two switching nodes and
According to standards if u r using load sharing then per link load should not go beyond 40%.
Regards.27th March 2006 at 21:37 #37075N.OGuest
there should be a paremeter that can be set to load sharing. It will change to vendor also.
For some vendors also it depends on the number of links between yor mode and STP.
byee10th August 2006 at 05:09 #37076RusselGuest
Could anybody please help me regarding SS7 dimensioning between MSC and BSC.24th November 2006 at 09:54 #37077sathyaGuest
please send me the formula for calculating erlang traffic for ss7 link from transmitted octet count and received octet count for LSL and HSL links please12th January 2007 at 06:23 #37078LucasGuest
Can you explain me how to calculate Erlang in a signaling link ? And which threshold is the recommendation ?
Thanks very much25th June 2007 at 03:09 #37079angelaGuest
how do i convert my signalling capacity to erlang?
for exmaple, i have 2 x 128 kbps signalling links, how does this translate to erlang?
angela20th July 2007 at 13:30 #37080ParryGuest
Hope it will be helpful to you. For further any queries please intimate or mail me —
Calculate the C7 signaling load on each link.
Formula Used: (Max of Tx or Rx Octets)+ 7*MSU / Tin * 60 * 8000. You use the attached tool (c7tm.exe) for this purpose.
Max. # of Tx is given by NOCTTR in the printout of the C7 traffic recordings
Max. # of Rx is given by NOCTRE in the printout of the C7 traffic recordings
MSU is give by NMSUTR or NMSURE in the Printout of the C7 Traffic recordings.
Tin = Time interval of recording or RPL (Here it should be 5 minutes).
Out put is given in terms of ERLANGS.24th July 2007 at 09:03 #37081KrishGuest
In terms of Ip packets how do we calculate the signaling load.is there any particular formula..28th August 2007 at 04:54 #37082IJAZ UL HAQ BADARGuest
Please tell me how much Earlang a HSL (High Speeed Sig. Links – 2MB) and LSL (Low Speed Sig Link – 64 KB) can carry and how it is calculated ?
IJAZ BADAR22nd February 2008 at 16:17 #37083milindGuest
when there is call loss in sinalling link (in Earlang traffic)& what is alarming condition.28th February 2008 at 02:21 #37084EricGuest
Anyhow, actually dimensioning of ISUP E1 per SS7 link is depends on its interconnecting type.
Another factor of calculating dimensioning of SS7 Channel capacity. We have to consider erlang recommendation. Let’s say one operator recommend to use 0.2 erlang for A link type and 0.4 erlang for F link type (this erlang recommendation could be different with each interconnecting type. Remember this erlang recommendation is only guided from operator