sgmp section

7/25/2019 SGMP Section

1/19

2000, Cisco Systems, Inc. All rights reserved. 1

ITP Course

March 2th

! 2"th

ITP Product Team


2/19

Section 2 # S$MP

2002, Cisco Systems, Inc. All rights reserved. 2


3/19

2000, Cisco Systems, Inc. All rights reserved. ITP Course%Section 2!&

S$MP and S$

Signaling $ate'ay Mate Protocol allo's S$s to esta(lish anassociation to a mated S$ 'ith an e)uivalent con*iguration

Mated +air S$s load share or (acu+ each otherMated!+air S$s must have e)uivalent S$ con*iguration -sameAS and AS oute Ta(le routing!ey/.

The local +oint code o* each S$ must (e uni)ue and must notmatch any AS +oint code -PC/, or any AS oute Ta(le +oint

code con*igured on its mate.


4/19

2000, Cisco Systems, Inc. All rights reserved. ITP Course%Section 2!

S$MP # acu+ 3am+le

STP

STP

AS 45ASPA

ACTI6

ASP

ACTI6

ASPC

I7ACTI6

Signaling $ate'ay Mated Pair

AS 45


5/19

2000, Cisco Systems, Inc. All rights reserved. ITP Course%Section 2!8

S$MP # 3am+le, AS in S$ (ecomesinactive

STP

STP

AS 45ASPA

ACTI6

ASP

ACTI6

ASPC

I7ACTI6


AS 45


6/19

2000, Cisco Systems, Inc. All rights reserved. ITP Course%Section 2!9

S$MP # 3am+le, AS in S$ (ecomes activeagain # AS timer

STP

STP

ASPA

ACTI6

ASP

ACTI6

ASPC

I7ACTI6


AS 45

AS 45

5+on (eing active again, 5++er S$ )ueues

ne' messages and 'aits *or earlier

messages to (e delivered (y mate (e*ore sending again


7/19 2000, Cisco Systems, Inc. All rights reserved. ITP Course%Section 2!:

7et'or Availa(ility 3am+lePhysical Connectivity

ASP2ITP2

ASP1

STP1

STP2

ITP1

SCP

IP

SS7IP

ITP

ITP

A

C

;

$

1.1.&, ASP1, ASP2

4oad!share Tra**ic Mode


8/19 2000, Cisco Systems, Inc. All rights reserved. ITP Course%Section 2!"

7et'or Availa(ility 3am+le4ogical Connectivity

IP

ASP2

SS7

ASP1

STP1

STP2

ITP1

SCP

1

2

3

4

ITP

ITP

ITP2

AS outing =ey > 1.1.&, ASP1, ASP2



9/19 2000, Cisco Systems, Inc. All rights reserved. ITP Course%Section 2!?

7et'or Availa(ility 3am+le4oss o* SCTP Path # ITP1 to ASP1

ASP2ITP2

ASP1

STP1

STP2

ITP1

SCP

IP

SS7IP

ITP

ITP

A

;

@




10/19 2000, Cisco Systems, Inc. All rights reserved. ITP Course%Section 2!10

7et'or Availa(ility 3am+le4oss o* SCTP Assoc # ITP1 to ASP1

IP

ASP2

SS7

ASP1

STP1

STP2

ITP1

SCP

1

2

3

4

ITP

ITP

ITP2

@





7et'or Availa(ility 3am+le4oss o* AS at ITP1

IP

ASP2

SS7

ASP1

STP1

STP2

ITP1

SCP

1

2

3

4

ITP

ITP

ITP2

@

@

T;P





7et'or Availa(ility 3am+le4oss o* AS at ITP1 # 'ith C!lin

IP

ASP2

SS7

ASP1

STP1

STP2

ITP1

SCP

1

2

3

4

ITP

ITP

ITP2

@

@

T;




13/19 2000, Cisco Systems, Inc. All rights reserved. ITP Course%Section 2!1&

Congestion 7oti*ication -T;C SCB7/

The ITP maintains AS and AS PC congestion levels.

IP side congestion level is (ased solely on ASP and S$ MateSCTP association congestion. SCB7s *rom ASPs are ignored.

T;CSCB7 re+orting (y the ITP is disa(led (y de*ault, and is

ena(led (y a glo(al con*ig command.T;CSCB7 are not sent *or an AS PC that is a local PC.

es+onse mode T;C is sent to the BPC o* the MS5.

SCB7 is sent to all active ASPs.

y de*ault, T;C is sent (ased on AS PC congestion status.Alternatively, T;C can (e sent (ased on AS congestion status.This mode is ena(led (y a glo(al con*ig command.

AS congestion level change is sent to the S$ mate via a SCB7.



AS Congestion 4evel Calculation

A Ma3-C,/

Ma3-C,/

A Ma3-C,/

Ma3-C,/

AS is not rerouting AS is rerouting

Bverride AS

4oadshare AS

4oadshare indings AS

roadcast AS

AD highest SCTP association congestion level among active ASPs in AS

D lo'est SCTP association congestion level among active ASPs in AS

CD AS congestion level on S$ mate as re+orted via SCB7 *rom S$ mate

D S$MP SCTP association congestion level



AS oute Ta(le

Set o* +ossi(le routes to a 6irtual Point Code -virtual AS/ in

the IP net'or.ach route to an AS is +rioritiEed, e)ual +riorities are notallo'ed.

very route is either availa(le, restricted or unavaila(le

ASPs send SS7M messages re+orting AS oute state



edundant


18/19 2000, Cisco Systems, Inc. All rights reserved. ITP Course%Section 2!1"


To ena(le S$MP and s+eci*y the S$MP local +ort.

ITP(config)#cs7 sgmp local-port

To con*igure a local IP address *or use (y S$MP.

ITP(config-cs7-sgmp)#local-ip ip-address

To de*ine mated S$ and ena(le CS: mated!sg su(mode.

ITP(config)#cs7 mated-sg mate-name remote-port [passive]

To s+eci*y the remote IP address o* the Mate.

ITP(config-cs7-mated-sg)remote-ip remote-ipTo de*ine the FoS class *or the S$ mated +air.

ITP(config-cs7-mated-sg)qos-class class


19/19

3ercise D S$MP

Con*igure S$MP on your S$ and its mate.

emove ASP1 *rom AS$TT on (oth S$s.

ring ASP2 active in AS$TT on (oth S$s, and veri*y that theS$MP sct+ association is active.

ring ASP1 active in ASPCSS7.

Send SCCP +acet to AS$TT via your to+ S$.

Close the sct+ association (et'een ASP2 and your to+ S$.

6eri*y that AS$TT state is Gd'n!reH -do'nrerouting/ on your to+

S$.esend SCCP +acet to AS$TT via your to+ S$ and veri*y that itgets to the as+sim via your (ottom S$.

ring ASP2 active on your to+ S$, and veri*y that the as+simreceives tra**ic via your to+ S$.

sgmp section

Documents